first commit

admin/tool/dataprivacy/amd/build/add_category.min.js

@@ -0,0 +1,10 @@
+/**
+ * Module to add categories.
+ *
+ * @module     tool_dataprivacy/add_category
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define("tool_dataprivacy/add_category",["jquery","core/str","core/ajax","core/notification","core/modal_save_cancel","core/modal_events","core/fragment","core_form/changechecker"],(function($,Str,Ajax,Notification,ModalSaveCancel,ModalEvents,Fragment,FormChangeChecker){var SELECTORS_CATEGORY_LINK='[data-add-element="category"]',AddCategory=function(contextId){this.contextId=contextId;this.strings=Str.get_strings([{key:"addcategory",component:"tool_dataprivacy"},{key:"save",component:"admin"}]),this.registerEventListeners()};return AddCategory.prototype.contextId=0,AddCategory.prototype.strings=0,AddCategory.prototype.registerEventListeners=function(){$(SELECTORS_CATEGORY_LINK).on("click",function(){this.strings.then(function(strings){return Promise.all([ModalSaveCancel.create({title:strings[0],body:""}),strings[1]]).then(function(_ref){let[modal,string]=_ref;return this.setupFormModal(modal,string),modal}.bind(this))}.bind(this)).catch(Notification.exception)}.bind(this))},AddCategory.prototype.getBody=function(formdata){var params=null;return void 0!==formdata&&(params={jsonformdata:JSON.stringify(formdata)}),Fragment.loadFragment("tool_dataprivacy","addcategory_form",this.contextId,params)},AddCategory.prototype.setupFormModal=function(modal,saveText){modal.setLarge(),modal.setSaveButtonText(saveText),modal.getRoot().on(ModalEvents.hidden,this.destroy.bind(this)),modal.setBody(this.getBody()),modal.getRoot().on(ModalEvents.save,this.submitForm.bind(this)),modal.getRoot().on("submit","form",this.submitFormAjax.bind(this)),this.modal=modal,modal.show()},AddCategory.prototype.submitForm=function(e){e.preventDefault(),this.modal.getRoot().find("form").submit()},AddCategory.prototype.submitFormAjax=function(e){e.preventDefault();var formData=this.modal.getRoot().find("form").serialize();Ajax.call([{methodname:"tool_dataprivacy_create_category_form",args:{jsonformdata:JSON.stringify(formData)},done:function(data){data.validationerrors?this.modal.setBody(this.getBody(formData)):this.close()}.bind(this),fail:Notification.exception}])},AddCategory.prototype.close=function(){this.destroy(),document.location.reload()},AddCategory.prototype.destroy=function(){FormChangeChecker.resetAllFormDirtyStates(),this.modal.destroy()},AddCategory.prototype.removeListeners=function(){$(SELECTORS_CATEGORY_LINK).off("click")},{getInstance:function(contextId){return new AddCategory(contextId)}}}));
+
+//# sourceMappingURL=add_category.min.js.map

admin/tool/dataprivacy/amd/build/add_purpose.min.js

@@ -0,0 +1,10 @@
+/**
+ * Module to add purposes.
+ *
+ * @module     tool_dataprivacy/add_purpose
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define("tool_dataprivacy/add_purpose",["jquery","core/str","core/ajax","core/notification","core/modal_save_cancel","core/modal_events","core/fragment","core_form/changechecker"],(function($,Str,Ajax,Notification,ModalSaveCancel,ModalEvents,Fragment,FormChangeChecker){var SELECTORS_PURPOSE_LINK='[data-add-element="purpose"]',AddPurpose=function(contextId){this.contextId=contextId;this.strings=Str.get_strings([{key:"addpurpose",component:"tool_dataprivacy"},{key:"save",component:"admin"}]),this.registerEventListeners()};return AddPurpose.prototype.contextId=0,AddPurpose.prototype.strings=0,AddPurpose.prototype.registerEventListeners=function(){$(SELECTORS_PURPOSE_LINK).on("click",function(){this.strings.then(function(strings){return Promise.all([ModalSaveCancel.create({title:strings[0],body:""}),strings[1]]).then(function(_ref){let[modal,string]=_ref;this.setupFormModal(modal,string)}.bind(this))}.bind(this)).catch(Notification.exception)}.bind(this))},AddPurpose.prototype.getBody=function(formdata){var params=null;return void 0!==formdata&&(params={jsonformdata:JSON.stringify(formdata)}),Fragment.loadFragment("tool_dataprivacy","addpurpose_form",this.contextId,params)},AddPurpose.prototype.setupFormModal=function(modal,saveText){modal.setLarge(),modal.setSaveButtonText(saveText),modal.getRoot().on(ModalEvents.hidden,this.destroy.bind(this)),modal.setBody(this.getBody()),modal.getRoot().on(ModalEvents.save,this.submitForm.bind(this)),modal.getRoot().on("submit","form",this.submitFormAjax.bind(this)),this.modal=modal,modal.show()},AddPurpose.prototype.submitForm=function(e){e.preventDefault(),this.modal.getRoot().find("form").submit()},AddPurpose.prototype.submitFormAjax=function(e){e.preventDefault();var formData=this.modal.getRoot().find("form").serialize();Ajax.call([{methodname:"tool_dataprivacy_create_purpose_form",args:{jsonformdata:JSON.stringify(formData)},done:function(data){data.validationerrors?this.modal.setBody(this.getBody(formData)):this.close()}.bind(this),fail:Notification.exception}])},AddPurpose.prototype.close=function(){this.destroy(),document.location.reload()},AddPurpose.prototype.destroy=function(){FormChangeChecker.resetAllFormDirtyStates(),this.modal.destroy()},AddPurpose.prototype.removeListeners=function(){$(SELECTORS_PURPOSE_LINK).off("click")},{getInstance:function(contextId){return new AddPurpose(contextId)}}}));
+
+//# sourceMappingURL=add_purpose.min.js.map

admin/tool/dataprivacy/amd/build/categoriesactions.min.js

@@ -0,0 +1,10 @@
+define("tool_dataprivacy/categoriesactions",["exports","core/ajax","core/notification","core/str","core/modal_events","core/modal_save_cancel"],(function(_exports,Ajax,Notification,Str,_modal_events,_modal_save_cancel){function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj}}function _getRequireWildcardCache(nodeInterop){if("function"!=typeof WeakMap)return null;var cacheBabelInterop=new WeakMap,cacheNodeInterop=new WeakMap;return(_getRequireWildcardCache=function(nodeInterop){return nodeInterop?cacheNodeInterop:cacheBabelInterop})(nodeInterop)}function _interopRequireWildcard(obj,nodeInterop){if(!nodeInterop&&obj&&obj.__esModule)return obj;if(null===obj||"object"!=typeof obj&&"function"!=typeof obj)return{default:obj};var cache=_getRequireWildcardCache(nodeInterop);if(cache&&cache.has(obj))return cache.get(obj);var newObj={},hasPropertyDescriptor=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var key in obj)if("default"!==key&&Object.prototype.hasOwnProperty.call(obj,key)){var desc=hasPropertyDescriptor?Object.getOwnPropertyDescriptor(obj,key):null;desc&&(desc.get||desc.set)?Object.defineProperty(newObj,key,desc):newObj[key]=obj[key]}return newObj.default=obj,cache&&cache.set(obj,newObj),newObj}
+/**
+   * AMD module for categories actions.
+   *
+   * @module     tool_dataprivacy/categoriesactions
+   * @copyright  2018 David Monllao
+   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+   */Object.defineProperty(_exports,"__esModule",{value:!0}),_exports.default=void 0,Ajax=_interopRequireWildcard(Ajax),Notification=_interopRequireWildcard(Notification),Str=_interopRequireWildcard(Str),_modal_events=_interopRequireDefault(_modal_events),_modal_save_cancel=_interopRequireDefault(_modal_save_cancel);const ACTIONS_DELETE='[data-action="deletecategory"]';return _exports.default=class{static init(){return new this}constructor(){this.registerEvents()}deleteCategory(id){return Ajax.call([{methodname:"tool_dataprivacy_delete_category",args:{id:id}}])[0]}handleCategoryRemoval(id){this.deleteCategory(id).then((data=>{var _document$querySelect;data.result?null===(_document$querySelect=document.querySelector('tr[data-categoryid="'.concat(id,'"]')))||void 0===_document$querySelect||_document$querySelect.remove():Notification.addNotification({message:data.warnings[0].message,type:"error"})})).catch(Notification.exception)}registerEvents(){document.addEventListener("click",(e=>{const target=e.target.closest(ACTIONS_DELETE);target&&(e.preventDefault(),this.confirmCategoryRemoval(target))}))}confirmCategoryRemoval(target){const id=target.dataset.id;var stringkeys=[{key:"deletecategory",component:"tool_dataprivacy"},{key:"deletecategorytext",component:"tool_dataprivacy",param:target.dataset.name},{key:"delete"}];Str.get_strings(stringkeys).then((_ref=>{let[title,body,save]=_ref;return _modal_save_cancel.default.create({title:title,body:body,buttons:{save:save},show:!0,removeOnClose:!0})})).then((modal=>(modal.getRoot().on(_modal_events.default.save,(()=>this.handleCategoryRemoval(id))),modal))).catch(Notification.exception)}},_exports.default}));
+
+//# sourceMappingURL=categoriesactions.min.js.map

admin/tool/dataprivacy/amd/build/contactdpo.min.js

@@ -0,0 +1,10 @@
+define("tool_dataprivacy/contactdpo",["exports","core_form/modalform","core/notification","core/str","core/toast"],(function(_exports,_modalform,_notification,_str,_toast){function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj}}
+/**
+   * Javascript module for contacting the site DPO
+   *
+   * @module      tool_dataprivacy/contactdpo
+   * @copyright   2021 Paul Holden <paulh@moodle.com>
+   * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+   */Object.defineProperty(_exports,"__esModule",{value:!0}),_exports.init=void 0,_modalform=_interopRequireDefault(_modalform),_notification=_interopRequireDefault(_notification);const SELECTORS_CONTACT_DPO='[data-action="contactdpo"]';_exports.init=()=>{const triggerElement=document.querySelector(SELECTORS_CONTACT_DPO);triggerElement.addEventListener("click",(event=>{event.preventDefault();const modalForm=new _modalform.default({modalConfig:{title:(0,_str.getString)("contactdataprotectionofficer","tool_dataprivacy")},formClass:"tool_dataprivacy\\form\\contactdpo",saveButtonText:(0,_str.getString)("send","tool_dataprivacy"),returnFocus:triggerElement});modalForm.addEventListener(modalForm.events.FORM_SUBMITTED,(event=>{if(event.detail.result)(0,_str.getString)("requestsubmitted","tool_dataprivacy").then(_toast.add).catch();else{const warningMessages=event.detail.warnings.map((warning=>warning.message));_notification.default.addNotification({type:"error",message:warningMessages.join("<br>")})}})),modalForm.show()}))}}));
+
+//# sourceMappingURL=contactdpo.min.js.map

admin/tool/dataprivacy/amd/build/contactdpo.min.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"contactdpo.min.js","sources":["../src/contactdpo.js"],"sourcesContent":["// This file is part of Moodle - http://moodle.org/\n//\n// Moodle is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// Moodle is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.\n\n/**\n * Javascript module for contacting the site DPO\n *\n * @module      tool_dataprivacy/contactdpo\n * @copyright   2021 Paul Holden <paulh@moodle.com>\n * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\n\nimport ModalForm from 'core_form/modalform';\nimport Notification from 'core/notification';\nimport {getString} from 'core/str';\nimport {add as addToast} from 'core/toast';\n\nconst SELECTORS = {\n    CONTACT_DPO: '[data-action=\"contactdpo\"]',\n};\n\n/**\n * Initialize module\n */\nexport const init = () => {\n    const triggerElement = document.querySelector(SELECTORS.CONTACT_DPO);\n\n    triggerElement.addEventListener('click', event => {\n        event.preventDefault();\n\n        const modalForm = new ModalForm({\n            modalConfig: {\n                title: getString('contactdataprotectionofficer', 'tool_dataprivacy'),\n            },\n            formClass: 'tool_dataprivacy\\\\form\\\\contactdpo',\n            saveButtonText: getString('send', 'tool_dataprivacy'),\n            returnFocus: triggerElement,\n        });\n\n        // Show a toast notification when the form is submitted.\n        modalForm.addEventListener(modalForm.events.FORM_SUBMITTED, event => {\n            if (event.detail.result) {\n                getString('requestsubmitted', 'tool_dataprivacy').then(addToast).catch();\n            } else {\n                const warningMessages = event.detail.warnings.map(warning => warning.message);\n                Notification.addNotification({\n                    type: 'error',\n                    message: warningMessages.join('<br>')\n                });\n            }\n        });\n\n        modalForm.show();\n    });\n};\n"],"names":["SELECTORS","triggerElement","document","querySelector","addEventListener","event","preventDefault","modalForm","ModalForm","modalConfig","title","formClass","saveButtonText","returnFocus","events","FORM_SUBMITTED","detail","result","then","addToast","catch","warningMessages","warnings","map","warning","message","addNotification","type","join","show"],"mappings":";;;;;;;0LA4BMA,sBACW,2CAMG,WACVC,eAAiBC,SAASC,cAAcH,uBAE9CC,eAAeG,iBAAiB,SAASC,QACrCA,MAAMC,uBAEAC,UAAY,IAAIC,mBAAU,CAC5BC,YAAa,CACTC,OAAO,kBAAU,+BAAgC,qBAErDC,UAAW,qCACXC,gBAAgB,kBAAU,OAAQ,oBAClCC,YAAaZ,iBAIjBM,UAAUH,iBAAiBG,UAAUO,OAAOC,gBAAgBV,WACpDA,MAAMW,OAAOC,0BACH,mBAAoB,oBAAoBC,KAAKC,YAAUC,YAC9D,OACGC,gBAAkBhB,MAAMW,OAAOM,SAASC,KAAIC,SAAWA,QAAQC,gCACxDC,gBAAgB,CACzBC,KAAM,QACNF,QAASJ,gBAAgBO,KAAK,cAK1CrB,UAAUsB"}

admin/tool/dataprivacy/amd/build/data_deletion.min.js

@@ -0,0 +1,10 @@
+/**
+ * Request actions.
+ *
+ * @module     tool_dataprivacy/data_deletion
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define("tool_dataprivacy/data_deletion",["jquery","core/ajax","core/notification","core/str","core/modal_save_cancel","core/modal_events"],(function($,Ajax,Notification,Str,ModalSaveCancel,ModalEvents){var ACTIONS_MARK_FOR_DELETION='[data-action="markfordeletion"]',ACTIONS_SELECT_ALL='[data-action="selectall"]',SELECTORS_SELECTCONTEXT=".selectcontext",DataDeletionActions=function(){this.registerEvents()};return DataDeletionActions.prototype.registerEvents=function(){$(ACTIONS_MARK_FOR_DELETION).click((function(e){e.preventDefault();var ids,keys,wsfunction,modalTitle,selectedIds=[];$(SELECTORS_SELECTCONTEXT).each((function(){var checkbox=$(this);checkbox.is(":checked")&&selectedIds.push(checkbox.val())})),ids=selectedIds,keys=[{key:"confirm",component:"moodle"},{key:"confirmcontextdeletion",component:"tool_dataprivacy"}],wsfunction="tool_dataprivacy_confirm_contexts_for_deletion",modalTitle="",Str.get_strings(keys).then((function(langStrings){modalTitle=langStrings[0];var confirmMessage=langStrings[1];return ModalSaveCancel.create({title:modalTitle,body:confirmMessage})})).then((function(modal){return modal.setSaveButtonText(modalTitle),modal.getRoot().on(ModalEvents.save,(function(){var request={methodname:wsfunction,args:{ids:ids}};Ajax.call([request])[0].done((function(data){data.result?window.location.reload():Notification.addNotification({message:data.warnings[0].message,type:"error"})})).fail(Notification.exception)})),modal.getRoot().on(ModalEvents.hidden,(function(){modal.destroy()})),modal})).done((function(modal){modal.show()})).fail(Notification.exception)})),$(ACTIONS_SELECT_ALL).change((function(e){e.preventDefault(),$(this).is(":checked")?$(SELECTORS_SELECTCONTEXT).attr("checked","checked"):$(SELECTORS_SELECTCONTEXT).removeAttr("checked")}))},DataDeletionActions}));
+
+//# sourceMappingURL=data_deletion.min.js.map

admin/tool/dataprivacy/amd/build/data_request_modal.min.js

@@ -0,0 +1,3 @@
+define("tool_dataprivacy/data_request_modal",["exports","jquery","core/custom_interaction_events","core/modal","./events"],(function(_exports,_jquery,CustomEvents,_modal,_events){function _getRequireWildcardCache(nodeInterop){if("function"!=typeof WeakMap)return null;var cacheBabelInterop=new WeakMap,cacheNodeInterop=new WeakMap;return(_getRequireWildcardCache=function(nodeInterop){return nodeInterop?cacheNodeInterop:cacheBabelInterop})(nodeInterop)}function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj}}function _defineProperty(obj,key,value){return key in obj?Object.defineProperty(obj,key,{value:value,enumerable:!0,configurable:!0,writable:!0}):obj[key]=value,obj}Object.defineProperty(_exports,"__esModule",{value:!0}),_exports.default=void 0,_jquery=_interopRequireDefault(_jquery),CustomEvents=function(obj,nodeInterop){if(!nodeInterop&&obj&&obj.__esModule)return obj;if(null===obj||"object"!=typeof obj&&"function"!=typeof obj)return{default:obj};var cache=_getRequireWildcardCache(nodeInterop);if(cache&&cache.has(obj))return cache.get(obj);var newObj={},hasPropertyDescriptor=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var key in obj)if("default"!==key&&Object.prototype.hasOwnProperty.call(obj,key)){var desc=hasPropertyDescriptor?Object.getOwnPropertyDescriptor(obj,key):null;desc&&(desc.get||desc.set)?Object.defineProperty(newObj,key,desc):newObj[key]=obj[key]}newObj.default=obj,cache&&cache.set(obj,newObj);return newObj}(CustomEvents),_modal=_interopRequireDefault(_modal),_events=_interopRequireDefault(_events);const SELECTORS_APPROVE_BUTTON='[data-action="approve"]',SELECTORS_DENY_BUTTON='[data-action="deny"]',SELECTORS_COMPLETE_BUTTON='[data-action="complete"]',SELECTORS_APPROVE_REQUEST_SELECT_COURSE='[data-action="approve-selected-courses"]';class ModalDataRequest extends _modal.default{registerEventListeners(){super.registerEventListeners(this),this.getModal().on(CustomEvents.events.activate,SELECTORS_APPROVE_BUTTON,((e,data)=>{const approveEvent=_jquery.default.Event(_events.default.approve);this.getRoot().trigger(approveEvent,this),approveEvent.isDefaultPrevented()||(this.hide(),data.originalEvent.preventDefault())})),this.getModal().on(CustomEvents.events.activate,SELECTORS_DENY_BUTTON,((e,data)=>{const denyEvent=_jquery.default.Event(_events.default.deny);this.getRoot().trigger(denyEvent,this),denyEvent.isDefaultPrevented()||(this.hide(),data.originalEvent.preventDefault())})),this.getModal().on(CustomEvents.events.activate,SELECTORS_COMPLETE_BUTTON,((e,data)=>{const completeEvent=_jquery.default.Event(_events.default.complete);this.getRoot().trigger(completeEvent,this),completeEvent.isDefaultPrevented()||(this.hide(),data.originalEvent.preventDefault())})),this.getModal().on(CustomEvents.events.activate,SELECTORS_APPROVE_REQUEST_SELECT_COURSE,((e,data)=>{let approveSelectCoursesEvent=_jquery.default.Event(_events.default.approveSelectCourses);this.getRoot().trigger(approveSelectCoursesEvent,this),approveSelectCoursesEvent.isDefaultPrevented()||(this.hide(),data.originalEvent.preventDefault())}))}}return _exports.default=ModalDataRequest,_defineProperty(ModalDataRequest,"TYPE","tool_dataprivacy-data_request"),_defineProperty(ModalDataRequest,"TEMPLATE","tool_dataprivacy/data_request_modal"),ModalDataRequest.registerModalType(),_exports.default}));
+
+//# sourceMappingURL=data_request_modal.min.js.map

admin/tool/dataprivacy/amd/build/data_request_modal.min.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"data_request_modal.min.js","sources":["../src/data_request_modal.js"],"sourcesContent":["// This file is part of Moodle - http://moodle.org/\n//\n// Moodle is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// Moodle is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.\n\n/**\n * Request actions.\n *\n * @module     tool_dataprivacy/data_request_modal\n * @copyright  2018 Jun Pataleta\n * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\n\nimport $ from 'jquery';\nimport * as CustomEvents from 'core/custom_interaction_events';\nimport Modal from 'core/modal';\nimport DataPrivacyEvents from './events';\n\nconst SELECTORS = {\n    APPROVE_BUTTON: '[data-action=\"approve\"]',\n    DENY_BUTTON: '[data-action=\"deny\"]',\n    COMPLETE_BUTTON: '[data-action=\"complete\"]',\n    APPROVE_REQUEST_SELECT_COURSE: '[data-action=\"approve-selected-courses\"]',\n};\n\nexport default class ModalDataRequest extends Modal {\n    static TYPE = 'tool_dataprivacy-data_request';\n    static TEMPLATE = 'tool_dataprivacy/data_request_modal';\n\n    /**\n     * Set up all of the event handling for the modal.\n     */\n    registerEventListeners() {\n        // Apply parent event listeners.\n        super.registerEventListeners(this);\n\n        this.getModal().on(CustomEvents.events.activate, SELECTORS.APPROVE_BUTTON, (e, data) => {\n            const approveEvent = $.Event(DataPrivacyEvents.approve);\n            this.getRoot().trigger(approveEvent, this);\n\n            if (!approveEvent.isDefaultPrevented()) {\n                this.hide();\n                data.originalEvent.preventDefault();\n            }\n        });\n\n        this.getModal().on(CustomEvents.events.activate, SELECTORS.DENY_BUTTON, (e, data) => {\n            const denyEvent = $.Event(DataPrivacyEvents.deny);\n            this.getRoot().trigger(denyEvent, this);\n\n            if (!denyEvent.isDefaultPrevented()) {\n                this.hide();\n                data.originalEvent.preventDefault();\n            }\n        });\n\n        this.getModal().on(CustomEvents.events.activate, SELECTORS.COMPLETE_BUTTON, (e, data) => {\n            const completeEvent = $.Event(DataPrivacyEvents.complete);\n            this.getRoot().trigger(completeEvent, this);\n\n            if (!completeEvent.isDefaultPrevented()) {\n                this.hide();\n                data.originalEvent.preventDefault();\n            }\n        });\n\n        this.getModal().on(CustomEvents.events.activate, SELECTORS.APPROVE_REQUEST_SELECT_COURSE, (e, data) => {\n            let approveSelectCoursesEvent = $.Event(DataPrivacyEvents.approveSelectCourses);\n            this.getRoot().trigger(approveSelectCoursesEvent, this);\n\n            if (!approveSelectCoursesEvent.isDefaultPrevented()) {\n                this.hide();\n                data.originalEvent.preventDefault();\n            }\n        });\n\n    }\n}\n\nModalDataRequest.registerModalType();\n"],"names":["SELECTORS","ModalDataRequest","Modal","registerEventListeners","this","getModal","on","CustomEvents","events","activate","e","data","approveEvent","$","Event","DataPrivacyEvents","approve","getRoot","trigger","isDefaultPrevented","hide","originalEvent","preventDefault","denyEvent","deny","completeEvent","complete","approveSelectCoursesEvent","approveSelectCourses","registerModalType"],"mappings":"gjDA4BMA,yBACc,0BADdA,sBAEW,uBAFXA,0BAGe,2BAHfA,wCAI6B,iDAGdC,yBAAyBC,eAO1CC,+BAEUA,uBAAuBC,WAExBC,WAAWC,GAAGC,aAAaC,OAAOC,SAAUT,0BAA0B,CAACU,EAAGC,cACrEC,aAAeC,gBAAEC,MAAMC,gBAAkBC,cAC1CC,UAAUC,QAAQN,aAAcR,MAEhCQ,aAAaO,4BACTC,OACLT,KAAKU,cAAcC,0BAItBjB,WAAWC,GAAGC,aAAaC,OAAOC,SAAUT,uBAAuB,CAACU,EAAGC,cAClEY,UAAYV,gBAAEC,MAAMC,gBAAkBS,WACvCP,UAAUC,QAAQK,UAAWnB,MAE7BmB,UAAUJ,4BACNC,OACLT,KAAKU,cAAcC,0BAItBjB,WAAWC,GAAGC,aAAaC,OAAOC,SAAUT,2BAA2B,CAACU,EAAGC,cACtEc,cAAgBZ,gBAAEC,MAAMC,gBAAkBW,eAC3CT,UAAUC,QAAQO,cAAerB,MAEjCqB,cAAcN,4BACVC,OACLT,KAAKU,cAAcC,0BAItBjB,WAAWC,GAAGC,aAAaC,OAAOC,SAAUT,yCAAyC,CAACU,EAAGC,YACtFgB,0BAA4Bd,gBAAEC,MAAMC,gBAAkBa,2BACrDX,UAAUC,QAAQS,0BAA2BvB,MAE7CuB,0BAA0BR,4BACtBC,OACLT,KAAKU,cAAcC,+EA/CdrB,wBACH,iDADGA,4BAEC,uCAoDtBA,iBAAiB4B"}

admin/tool/dataprivacy/amd/build/effective_retention_period.min.js

@@ -0,0 +1,10 @@
+/**
+ * Module to update the displayed retention period.
+ *
+ * @module     tool_dataprivacy/effective_retention_period
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define("tool_dataprivacy/effective_retention_period",["jquery"],(function($){var SELECTORS_PURPOSE_SELECT="#id_purposeid",SELECTORS_RETENTION_FIELD="#fitem_id_retention_current [data-fieldtype=static]",EffectiveRetentionPeriod=function(purposeRetentionPeriods){this.purposeRetentionPeriods=purposeRetentionPeriods,this.registerEventListeners()};return EffectiveRetentionPeriod.prototype.purposeRetentionPeriods=[],EffectiveRetentionPeriod.prototype.registerEventListeners=function(){$(SELECTORS_PURPOSE_SELECT).on("change",function(ev){var selected=$(ev.currentTarget).val(),selectedPurpose=this.purposeRetentionPeriods[selected];$(SELECTORS_RETENTION_FIELD).text(selectedPurpose)}.bind(this))},{init:function(purposeRetentionPeriods){return $(SELECTORS_PURPOSE_SELECT).off("change"),new EffectiveRetentionPeriod(purposeRetentionPeriods)}}}));
+
+//# sourceMappingURL=effective_retention_period.min.js.map

admin/tool/dataprivacy/amd/build/effective_retention_period.min.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"effective_retention_period.min.js","sources":["../src/effective_retention_period.js"],"sourcesContent":["// This file is part of Moodle - http://moodle.org/\n//\n// Moodle is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// Moodle is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.\n\n/**\n * Module to update the displayed retention period.\n *\n * @module     tool_dataprivacy/effective_retention_period\n * @copyright  2018 David Monllao\n * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\ndefine(['jquery'],\n    function($) {\n\n        var SELECTORS = {\n            PURPOSE_SELECT: '#id_purposeid',\n            RETENTION_FIELD: '#fitem_id_retention_current [data-fieldtype=static]',\n        };\n\n        /**\n         * Constructor for the retention period display.\n         *\n         * @param {Array} purposeRetentionPeriods Associative array of purposeids with effective retention period at this context\n         */\n        var EffectiveRetentionPeriod = function(purposeRetentionPeriods) {\n            this.purposeRetentionPeriods = purposeRetentionPeriods;\n            this.registerEventListeners();\n        };\n\n        /**\n         * Removes the current 'change' listeners.\n         *\n         * Useful when a new form is loaded.\n         */\n        var removeListeners = function() {\n            $(SELECTORS.PURPOSE_SELECT).off('change');\n        };\n\n        /**\n         * @var {Array} purposeRetentionPeriods\n         * @private\n         */\n        EffectiveRetentionPeriod.prototype.purposeRetentionPeriods = [];\n\n        /**\n         * Add purpose change listeners.\n         *\n         * @method registerEventListeners\n         */\n        EffectiveRetentionPeriod.prototype.registerEventListeners = function() {\n\n            $(SELECTORS.PURPOSE_SELECT).on('change', function(ev) {\n                var selected = $(ev.currentTarget).val();\n                var selectedPurpose = this.purposeRetentionPeriods[selected];\n                $(SELECTORS.RETENTION_FIELD).text(selectedPurpose);\n            }.bind(this));\n        };\n\n        return /** @alias module:tool_dataprivacy/effective_retention_period */ {\n            init: function(purposeRetentionPeriods) {\n                // Remove previously attached listeners.\n                removeListeners();\n                return new EffectiveRetentionPeriod(purposeRetentionPeriods);\n            }\n        };\n    }\n);\n\n"],"names":["define","$","SELECTORS","EffectiveRetentionPeriod","purposeRetentionPeriods","registerEventListeners","prototype","on","ev","selected","currentTarget","val","selectedPurpose","this","text","bind","init","off"],"mappings":";;;;;;;AAsBAA,qDAAO,CAAC,WACJ,SAASC,OAEDC,yBACgB,gBADhBA,0BAEiB,sDAQjBC,yBAA2B,SAASC,8BAC/BA,wBAA0BA,6BAC1BC,iCAgBTF,yBAAyBG,UAAUF,wBAA0B,GAO7DD,yBAAyBG,UAAUD,uBAAyB,WAExDJ,EAAEC,0BAA0BK,GAAG,SAAU,SAASC,QAC1CC,SAAWR,EAAEO,GAAGE,eAAeC,MAC/BC,gBAAkBC,KAAKT,wBAAwBK,UACnDR,EAAEC,2BAA2BY,KAAKF,kBACpCG,KAAKF,QAG6D,CACpEG,KAAM,SAASZ,gCAxBfH,EAAEC,0BAA0Be,IAAI,UA2BrB,IAAId,yBAAyBC"}

admin/tool/dataprivacy/amd/build/events.min.js

@@ -0,0 +1,3 @@
+define("tool_dataprivacy/events",["exports"],(function(_exports){Object.defineProperty(_exports,"__esModule",{value:!0}),_exports.default=void 0;return _exports.default={approve:"tool_dataprivacy-data_request:approve",bulkApprove:"tool_dataprivacy-data_request:bulk_approve",deny:"tool_dataprivacy-data_request:deny",bulkDeny:"tool_dataprivacy-data_request:bulk_deny",complete:"tool_dataprivacy-data_request:complete",approveSelectCourses:"tool_dataprivacy-data_request:approve-selected-courses"},_exports.default}));
+
+//# sourceMappingURL=events.min.js.map

admin/tool/dataprivacy/amd/build/events.min.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"events.min.js","sources":["../src/events.js"],"sourcesContent":["// This file is part of Moodle - http://moodle.org/\n//\n// Moodle is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// Moodle is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.\n\n/**\n * Contain the events the data privacy tool can fire.\n *\n * @module     tool_dataprivacy/events\n * @copyright  2018 Jun Pataleta\n * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\nexport default {\n    approve: 'tool_dataprivacy-data_request:approve',\n    bulkApprove: 'tool_dataprivacy-data_request:bulk_approve',\n    deny: 'tool_dataprivacy-data_request:deny',\n    bulkDeny: 'tool_dataprivacy-data_request:bulk_deny',\n    complete: 'tool_dataprivacy-data_request:complete',\n    approveSelectCourses: 'tool_dataprivacy-data_request:approve-selected-courses'\n};\n"],"names":["approve","bulkApprove","deny","bulkDeny","complete","approveSelectCourses"],"mappings":"yKAsBe,CACXA,QAAS,wCACTC,YAAa,6CACbC,KAAM,qCACNC,SAAU,0CACVC,SAAU,yCACVC,qBAAsB"}

admin/tool/dataprivacy/amd/build/expand_contract.min.js

@@ -0,0 +1,10 @@
+/**
+ * Potential user selector module.
+ *
+ * @module     tool_dataprivacy/expand_contract
+ * @copyright  2018 Adrian Greeve
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define("tool_dataprivacy/expand_contract",["jquery","core/url","core/str","core/notification"],(function($,url,str,Notification){var expandedImage=$('<img alt="" src="'+url.imageUrl("t/expanded")+'"/>'),collapsedImage=$('<img alt="" src="'+url.imageUrl("t/collapsed")+'"/>'),CLASSES_EXPAND="fa-caret-right",CLASSES_COLLAPSE="fa-caret-down";return{expandCollapse:function(targetnode,thisnode){targetnode.hasClass("hide")?(targetnode.removeClass("hide"),targetnode.addClass("visible"),targetnode.attr("aria-expanded",!0),thisnode.find(":header i.fa").removeClass(CLASSES_EXPAND),thisnode.find(":header i.fa").addClass(CLASSES_COLLAPSE),thisnode.find(":header img.icon").attr("src",expandedImage.attr("src"))):(targetnode.removeClass("visible"),targetnode.addClass("hide"),targetnode.attr("aria-expanded",!1),thisnode.find(":header i.fa").removeClass(CLASSES_COLLAPSE),thisnode.find(":header i.fa").addClass(CLASSES_EXPAND),thisnode.find(":header img.icon").attr("src",collapsedImage.attr("src")))},expandCollapseAll:function(nextstate){var currentstate="visible"==nextstate?"hide":"visible",ariaexpandedstate="visible"==nextstate,iconclassnow="visible"==nextstate?CLASSES_EXPAND:CLASSES_COLLAPSE,iconclassnext="visible"==nextstate?CLASSES_COLLAPSE:CLASSES_EXPAND,imagenow="visible"==nextstate?expandedImage.attr("src"):collapsedImage.attr("src");$("."+currentstate).each((function(){$(this).removeClass(currentstate),$(this).addClass(nextstate),$(this).attr("aria-expanded",ariaexpandedstate)})),$(".tool_dataprivacy-expand-all").data("visibilityState",currentstate),str.get_string(currentstate,"tool_dataprivacy").then((function(langString){$(".tool_dataprivacy-expand-all").html(langString)})).catch(Notification.exception),$(":header i.fa").each((function(){$(this).removeClass(iconclassnow),$(this).addClass(iconclassnext)})),$(":header img.icon").each((function(){$(this).attr("src",imagenow)}))}}}));
+
+//# sourceMappingURL=expand_contract.min.js.map

admin/tool/dataprivacy/amd/build/form-user-selector.min.js

@@ -0,0 +1,10 @@
+/**
+ * Potential user selector module.
+ *
+ * @module     tool_dataprivacy/form-user-selector
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define("tool_dataprivacy/form-user-selector",["jquery","core/ajax","core/templates"],(function($,Ajax,Templates){return{processResults:function(selector,results){var users=[];return $.each(results,(function(index,user){users.push({value:user.id,label:user._label})})),users},transport:function(selector,query,success,failure){Ajax.call([{methodname:"tool_dataprivacy_get_users",args:{query:query}}])[0].then((function(results){var promises=[],i=0;return $.each(results,(function(index,user){promises.push(Templates.render("tool_dataprivacy/form-user-selector-suggestion",user))})),$.when.apply($.when,promises).then((function(){var args=arguments;$.each(results,(function(index,user){user._label=args[i],i++})),success(results)}))})).fail(failure)}}}));
+
+//# sourceMappingURL=form-user-selector.min.js.map

admin/tool/dataprivacy/amd/build/form-user-selector.min.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"form-user-selector.min.js","sources":["../src/form-user-selector.js"],"sourcesContent":["// This file is part of Moodle - http://moodle.org/\n//\n// Moodle is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// Moodle is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.\n\n/**\n * Potential user selector module.\n *\n * @module     tool_dataprivacy/form-user-selector\n * @copyright  2018 Jun Pataleta\n * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\n\ndefine(['jquery', 'core/ajax', 'core/templates'], function($, Ajax, Templates) {\n\n    return /** @alias module:tool_dataprivacy/form-user-selector */ {\n\n        processResults: function(selector, results) {\n            var users = [];\n            $.each(results, function(index, user) {\n                users.push({\n                    value: user.id,\n                    label: user._label\n                });\n            });\n            return users;\n        },\n\n        transport: function(selector, query, success, failure) {\n            var promise;\n\n            promise = Ajax.call([{\n                methodname: 'tool_dataprivacy_get_users',\n                args: {\n                    query: query\n                }\n            }]);\n\n            promise[0].then(function(results) {\n                var promises = [],\n                    i = 0;\n\n                // Render the label.\n                $.each(results, function(index, user) {\n                    promises.push(Templates.render('tool_dataprivacy/form-user-selector-suggestion', user));\n                });\n\n                // Apply the label to the results.\n                return $.when.apply($.when, promises).then(function() {\n                    var args = arguments;\n                    $.each(results, function(index, user) {\n                        user._label = args[i];\n                        i++;\n                    });\n                    success(results);\n                    return;\n                });\n\n            }).fail(failure);\n        }\n\n    };\n\n});\n"],"names":["define","$","Ajax","Templates","processResults","selector","results","users","each","index","user","push","value","id","label","_label","transport","query","success","failure","call","methodname","args","then","promises","i","render","when","apply","arguments","fail"],"mappings":";;;;;;;AAuBAA,6CAAO,CAAC,SAAU,YAAa,mBAAmB,SAASC,EAAGC,KAAMC,iBAEA,CAE5DC,eAAgB,SAASC,SAAUC,aAC3BC,MAAQ,UACZN,EAAEO,KAAKF,SAAS,SAASG,MAAOC,MAC5BH,MAAMI,KAAK,CACPC,MAAOF,KAAKG,GACZC,MAAOJ,KAAKK,YAGbR,OAGXS,UAAW,SAASX,SAAUY,MAAOC,QAASC,SAGhCjB,KAAKkB,KAAK,CAAC,CACjBC,WAAY,6BACZC,KAAM,CACFL,MAAOA,UAIP,GAAGM,MAAK,SAASjB,aACjBkB,SAAW,GACXC,EAAI,SAGRxB,EAAEO,KAAKF,SAAS,SAASG,MAAOC,MAC5Bc,SAASb,KAAKR,UAAUuB,OAAO,iDAAkDhB,UAI9ET,EAAE0B,KAAKC,MAAM3B,EAAE0B,KAAMH,UAAUD,MAAK,eACnCD,KAAOO,UACX5B,EAAEO,KAAKF,SAAS,SAASG,MAAOC,MAC5BA,KAAKK,OAASO,KAAKG,GACnBA,OAEJP,QAAQZ,eAIbwB,KAAKX"}

admin/tool/dataprivacy/amd/build/myrequestactions.min.js

@@ -0,0 +1,10 @@
+define("tool_dataprivacy/myrequestactions",["exports","core/ajax","core/notification","core/pending","core/str"],(function(_exports,_ajax,_notification,_pending,_str){function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj}}
+/**
+   * AMD module to enable users to manage their own data requests.
+   *
+   * @module     tool_dataprivacy/myrequestactions
+   * @copyright  2018 Jun Pataleta
+   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+   */Object.defineProperty(_exports,"__esModule",{value:!0}),_exports.init=void 0,_ajax=_interopRequireDefault(_ajax),_notification=_interopRequireDefault(_notification),_pending=_interopRequireDefault(_pending);const SELECTORS_CANCEL_REQUEST='[data-action="cancel"][data-requestid]';_exports.init=()=>{document.addEventListener("click",(event=>{const triggerElement=event.target.closest(SELECTORS_CANCEL_REQUEST);if(null===triggerElement)return;event.preventDefault();(0,_str.getStrings)([{key:"cancelrequest",component:"tool_dataprivacy"},{key:"cancelrequestconfirmation",component:"tool_dataprivacy"}]).then((_ref=>{let[cancelRequest,cancelConfirm]=_ref;return _notification.default.confirm(cancelRequest,cancelConfirm,cancelRequest,null,(()=>{const pendingPromise=new _pending.default("tool/dataprivacy:cancelRequest"),request={methodname:"tool_dataprivacy_cancel_data_request",args:{requestid:triggerElement.dataset.requestid}};_ajax.default.call([request])[0].then((response=>(response.result?window.location.reload():_notification.default.addNotification({type:"error",message:response.warnings[0].message}),pendingPromise.resolve()))).catch(_notification.default.exception)}))})).catch()}))}}));
+
+//# sourceMappingURL=myrequestactions.min.js.map

admin/tool/dataprivacy/amd/build/myrequestactions.min.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"myrequestactions.min.js","sources":["../src/myrequestactions.js"],"sourcesContent":["// This file is part of Moodle - http://moodle.org/\n//\n// Moodle is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// Moodle is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.\n\n/**\n * AMD module to enable users to manage their own data requests.\n *\n * @module     tool_dataprivacy/myrequestactions\n * @copyright  2018 Jun Pataleta\n * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\n\nimport Ajax from 'core/ajax';\nimport Notification from 'core/notification';\nimport Pending from 'core/pending';\nimport {getStrings} from 'core/str';\n\nconst SELECTORS = {\n    CANCEL_REQUEST: '[data-action=\"cancel\"][data-requestid]',\n};\n\n/**\n * Initialize module\n */\nexport const init = () => {\n    document.addEventListener('click', event => {\n        const triggerElement = event.target.closest(SELECTORS.CANCEL_REQUEST);\n        if (triggerElement === null) {\n            return;\n        }\n\n        event.preventDefault();\n\n        const requiredStrings = [\n            {key: 'cancelrequest', component: 'tool_dataprivacy'},\n            {key: 'cancelrequestconfirmation', component: 'tool_dataprivacy'},\n        ];\n\n        getStrings(requiredStrings).then(([cancelRequest, cancelConfirm]) => {\n            return Notification.confirm(cancelRequest, cancelConfirm, cancelRequest, null, () => {\n                const pendingPromise = new Pending('tool/dataprivacy:cancelRequest');\n                const request = {\n                    methodname: 'tool_dataprivacy_cancel_data_request',\n                    args: {requestid: triggerElement.dataset.requestid}\n                };\n\n                Ajax.call([request])[0].then(response => {\n                    if (response.result) {\n                        window.location.reload();\n                    } else {\n                        Notification.addNotification({\n                            type: 'error',\n                            message: response.warnings[0].message\n                        });\n                    }\n                    return pendingPromise.resolve();\n                }).catch(Notification.exception);\n            });\n        }).catch();\n    });\n};\n"],"names":["SELECTORS","document","addEventListener","event","triggerElement","target","closest","preventDefault","key","component","then","_ref","cancelRequest","cancelConfirm","Notification","confirm","pendingPromise","Pending","request","methodname","args","requestid","dataset","call","response","result","window","location","reload","addNotification","type","message","warnings","resolve","catch","exception"],"mappings":";;;;;;;0NA4BMA,yBACc,uDAMA,KAChBC,SAASC,iBAAiB,SAASC,cACzBC,eAAiBD,MAAME,OAAOC,QAAQN,6BACrB,OAAnBI,sBAIJD,MAAMI,qCAEkB,CACpB,CAACC,IAAK,gBAAiBC,UAAW,oBAClC,CAACD,IAAK,4BAA6BC,UAAW,sBAGtBC,MAAKC,WAAEC,cAAeC,2BACvCC,sBAAaC,QAAQH,cAAeC,cAAeD,cAAe,MAAM,WACrEI,eAAiB,IAAIC,iBAAQ,kCAC7BC,QAAU,CACZC,WAAY,uCACZC,KAAM,CAACC,UAAWjB,eAAekB,QAAQD,0BAGxCE,KAAK,CAACL,UAAU,GAAGR,MAAKc,WACrBA,SAASC,OACTC,OAAOC,SAASC,+BAEHC,gBAAgB,CACzBC,KAAM,QACNC,QAASP,SAASQ,SAAS,GAAGD,UAG/Bf,eAAeiB,aACvBC,MAAMpB,sBAAaqB,iBAE3BD"}

admin/tool/dataprivacy/amd/build/purposesactions.min.js

@@ -0,0 +1,17 @@
+define("tool_dataprivacy/purposesactions",["exports","core/ajax","core/notification","core/str","core/modal_events","core/modal_save_cancel"],(function(_exports,Ajax,Notification,Str,_modal_events,_modal_save_cancel){function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj}}function _getRequireWildcardCache(nodeInterop){if("function"!=typeof WeakMap)return null;var cacheBabelInterop=new WeakMap,cacheNodeInterop=new WeakMap;return(_getRequireWildcardCache=function(nodeInterop){return nodeInterop?cacheNodeInterop:cacheBabelInterop})(nodeInterop)}function _interopRequireWildcard(obj,nodeInterop){if(!nodeInterop&&obj&&obj.__esModule)return obj;if(null===obj||"object"!=typeof obj&&"function"!=typeof obj)return{default:obj};var cache=_getRequireWildcardCache(nodeInterop);if(cache&&cache.has(obj))return cache.get(obj);var newObj={},hasPropertyDescriptor=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var key in obj)if("default"!==key&&Object.prototype.hasOwnProperty.call(obj,key)){var desc=hasPropertyDescriptor?Object.getOwnPropertyDescriptor(obj,key):null;desc&&(desc.get||desc.set)?Object.defineProperty(newObj,key,desc):newObj[key]=obj[key]}return newObj.default=obj,cache&&cache.set(obj,newObj),newObj}
+/**
+   * AMD module for purposes actions.
+   *
+   * @module     tool_dataprivacy/purposesactions
+   * @copyright  2018 David Monllao
+   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+   */
+/**
+   * Module for purpose actions.
+   *
+   * @module     tool_dataprivacy/purposeactions
+   * @copyright  2018 David Monllao
+   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+   */Object.defineProperty(_exports,"__esModule",{value:!0}),_exports.default=void 0,Ajax=_interopRequireWildcard(Ajax),Notification=_interopRequireWildcard(Notification),Str=_interopRequireWildcard(Str),_modal_events=_interopRequireDefault(_modal_events),_modal_save_cancel=_interopRequireDefault(_modal_save_cancel);const ACTIONS_DELETE='[data-action="deletepurpose"]';return _exports.default=class{static init(){return new this}constructor(){this.registerEvents()}deletePurpose(id){return Ajax.call([{methodname:"tool_dataprivacy_delete_purpose",args:{id:id}}])[0]}handleRemoval(id){this.deletePurpose(id).then((data=>{var _document$querySelect;data.result?null===(_document$querySelect=document.querySelector('tr[data-purposeid="'.concat(id,'"]')))||void 0===_document$querySelect||_document$querySelect.remove():Notification.addNotification({message:data.warnings[0].message,type:"error"})})).catch(Notification.exception)}registerEvents(){document.addEventListener("click",(e=>{const target=e.target.closest(ACTIONS_DELETE);target&&(e.preventDefault(),this.confirmRemoval(target))}))}confirmRemoval(target){const id=target.dataset.id;var stringkeys=[{key:"deletepurpose",component:"tool_dataprivacy"},{key:"deletepurposetext",component:"tool_dataprivacy",param:target.dataset.name},{key:"delete"}];Str.get_strings(stringkeys).then((_ref=>{let[title,body,save]=_ref;return _modal_save_cancel.default.create({title:title,body:body,buttons:{save:save},show:!0,removeOnClose:!0})})).then((modal=>(modal.getRoot().on(_modal_events.default.save,(()=>this.handleRemoval(id))),modal))).catch(Notification.exception)}},_exports.default}));
+
+//# sourceMappingURL=purposesactions.min.js.map

admin/tool/dataprivacy/amd/build/request_filter.min.js

@@ -0,0 +1,10 @@
+/**
+ * JS module for the data requests filter.
+ *
+ * @module     tool_dataprivacy/request_filter
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define("tool_dataprivacy/request_filter",["jquery","core/form-autocomplete","core/str","core/notification"],(function($,Autocomplete,Str,Notification){var SELECTORS_REQUEST_FILTERS="#request-filters";return{init:function(){!function(){Str.get_strings([{key:"filter",component:"moodle"},{key:"nofiltersapplied",component:"moodle"}]).then((function(langstrings){var placeholder=langstrings[0],noSelectionString=langstrings[1];return Autocomplete.enhance(SELECTORS_REQUEST_FILTERS,!1,"",placeholder,!1,!0,noSelectionString,!0)})).fail(Notification.exception);var last=$(SELECTORS_REQUEST_FILTERS).val();$(SELECTORS_REQUEST_FILTERS).on("change",(function(){var current=$(this).val();last.join(",")!==current.join(",")&&(0===current.length&&$("#filters-cleared").val(1),$(this.form).submit())}))}()}}}));
+
+//# sourceMappingURL=request_filter.min.js.map

admin/tool/dataprivacy/amd/build/request_filter.min.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"request_filter.min.js","sources":["../src/request_filter.js"],"sourcesContent":["// This file is part of Moodle - http://moodle.org/\n//\n// Moodle is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// Moodle is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.\n\n/**\n * JS module for the data requests filter.\n *\n * @module     tool_dataprivacy/request_filter\n * @copyright  2018 Jun Pataleta\n * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\ndefine(['jquery', 'core/form-autocomplete', 'core/str', 'core/notification'], function($, Autocomplete, Str, Notification) {\n\n    /**\n     * Selectors.\n     *\n     * @access private\n     * @type {{REQUEST_FILTERS: string}}\n     */\n    var SELECTORS = {\n        REQUEST_FILTERS: '#request-filters'\n    };\n\n    /**\n     * Init function.\n     *\n     * @method init\n     * @private\n     */\n    var init = function() {\n        var stringkeys = [\n            {\n                key: 'filter',\n                component: 'moodle'\n            },\n            {\n                key: 'nofiltersapplied',\n                component: 'moodle'\n            }\n        ];\n\n        Str.get_strings(stringkeys).then(function(langstrings) {\n            var placeholder = langstrings[0];\n            var noSelectionString = langstrings[1];\n            return Autocomplete.enhance(SELECTORS.REQUEST_FILTERS, false, '', placeholder, false, true, noSelectionString, true);\n        }).fail(Notification.exception);\n\n        var last = $(SELECTORS.REQUEST_FILTERS).val();\n        $(SELECTORS.REQUEST_FILTERS).on('change', function() {\n            var current = $(this).val();\n            // Prevent form from submitting unnecessarily, eg. on blur when no filter is selected.\n            if (last.join(',') !== current.join(',')) {\n                // If we're submitting without filters, set the hidden input 'filters-cleared' to 1.\n                if (current.length === 0) {\n                    $('#filters-cleared').val(1);\n                }\n                $(this.form).submit();\n            }\n        });\n    };\n\n    return /** @alias module:core/form-autocomplete */ {\n        /**\n         * Initialise the unified user filter.\n         *\n         * @method init\n         */\n        init: function() {\n            init();\n        }\n    };\n});\n"],"names":["define","$","Autocomplete","Str","Notification","SELECTORS","init","get_strings","key","component","then","langstrings","placeholder","noSelectionString","enhance","fail","exception","last","val","on","current","this","join","length","form","submit"],"mappings":";;;;;;;AAsBAA,yCAAO,CAAC,SAAU,yBAA0B,WAAY,sBAAsB,SAASC,EAAGC,aAAcC,IAAKC,kBAQrGC,0BACiB,yBAyC8B,CAM/CC,KAAM,YAtCC,WAYPH,IAAII,YAXa,CACb,CACIC,IAAK,SACLC,UAAW,UAEf,CACID,IAAK,mBACLC,UAAW,YAISC,MAAK,SAASC,iBAClCC,YAAcD,YAAY,GAC1BE,kBAAoBF,YAAY,UAC7BT,aAAaY,QAAQT,2BAA2B,EAAO,GAAIO,aAAa,GAAO,EAAMC,mBAAmB,MAChHE,KAAKX,aAAaY,eAEjBC,KAAOhB,EAAEI,2BAA2Ba,MACxCjB,EAAEI,2BAA2Bc,GAAG,UAAU,eAClCC,QAAUnB,EAAEoB,MAAMH,MAElBD,KAAKK,KAAK,OAASF,QAAQE,KAAK,OAET,IAAnBF,QAAQG,QACRtB,EAAE,oBAAoBiB,IAAI,GAE9BjB,EAAEoB,KAAKG,MAAMC,aAYjBnB"}

admin/tool/dataprivacy/amd/build/selectedcourses.min.js

@@ -0,0 +1,3 @@
+define("tool_dataprivacy/selectedcourses",["exports","core/ajax","core/notification","core/modal_save_cancel","core/modal_events","core/fragment","core/prefetch","core/str"],(function(_exports,_ajax,_notification,_modal_save_cancel,_modal_events,_fragment,_prefetch,_str){function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj}}function _defineProperty(obj,key,value){return key in obj?Object.defineProperty(obj,key,{value:value,enumerable:!0,configurable:!0,writable:!0}):obj[key]=value,obj}Object.defineProperty(_exports,"__esModule",{value:!0}),_exports.default=void 0,_ajax=_interopRequireDefault(_ajax),_notification=_interopRequireDefault(_notification),_modal_save_cancel=_interopRequireDefault(_modal_save_cancel),_modal_events=_interopRequireDefault(_modal_events),_fragment=_interopRequireDefault(_fragment),(0,_prefetch.prefetchStrings)("tool_dataprivacy",["selectcourses","approverequest","errornoselectedcourse"]);return _exports.default=class{constructor(contextId,requestId){_defineProperty(this,"contextId",0),_defineProperty(this,"requestId",0),this.contextId=contextId,this.requestId=requestId,_modal_save_cancel.default.create({title:(0,_str.getString)("selectcourses","tool_dataprivacy"),body:this.getBody({requestid:requestId}),large:!0,removeOnClose:!0,buttons:{save:(0,_str.getString)("approverequest","tool_dataprivacy")}}).then((modal=>(this.modal=modal,modal))).then((modal=>(modal.getRoot().on(_modal_events.default.save,this.submitForm.bind(this)),modal.getRoot().on("submit","form",this.submitFormAjax.bind(this)),modal.show(),modal))).catch(_notification.default.exception)}getBody(formdata){const params=formdata?{jsonformdata:JSON.stringify(formdata)}:null;return _fragment.default.loadFragment("tool_dataprivacy","selectcourses_form",this.contextId,params)}submitForm(e){e.preventDefault(),this.modal.getRoot().find("form").submit()}submitFormAjax(e){e.preventDefault();let formData=this.modal.getRoot().find("form").serialize();if(-1===formData.indexOf("coursecontextids")){const customSelect=this.modal.getRoot().find(".custom-select"),invalidText=this.modal.getRoot().find(".invalid-feedback");return customSelect.addClass("is-invalid"),invalidText.attr("style","display: block"),void(0,_str.getString)("errornoselectedcourse","tool_dataprivacy").then((value=>{invalidText.empty().append(value)})).catch(_notification.default.exception)}_ajax.default.call([{methodname:"tool_dataprivacy_submit_selected_courses_form",args:{requestid:this.requestId,jsonformdata:JSON.stringify(formData)}}])[0].then((data=>(data.warnings.length>0?this.modal.setBody(this.getBody(formData)):(this.modal.destroy(),document.location.reload()),data))).catch((error=>_notification.default.exception(error)))}},_exports.default}));
+
+//# sourceMappingURL=selectedcourses.min.js.map

admin/tool/dataprivacy/amd/src/add_category.js

@@ -0,0 +1,188 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Module to add categories.
+ *
+ * @module     tool_dataprivacy/add_category
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define([
+    'jquery',
+    'core/str',
+    'core/ajax',
+    'core/notification',
+    'core/modal_save_cancel',
+    'core/modal_events',
+    'core/fragment',
+    'core_form/changechecker',
+], function(
+    $,
+    Str,
+    Ajax,
+    Notification,
+    ModalSaveCancel,
+    ModalEvents,
+    Fragment,
+    FormChangeChecker
+) {
+
+        var SELECTORS = {
+            CATEGORY_LINK: '[data-add-element="category"]',
+        };
+
+        var AddCategory = function(contextId) {
+            this.contextId = contextId;
+
+            var stringKeys = [
+                {
+                    key: 'addcategory',
+                    component: 'tool_dataprivacy'
+                },
+                {
+                    key: 'save',
+                    component: 'admin'
+                }
+            ];
+            this.strings = Str.get_strings(stringKeys);
+
+            this.registerEventListeners();
+        };
+
+        /**
+         * @var {int} contextId
+         * @private
+         */
+        AddCategory.prototype.contextId = 0;
+
+        /**
+         * @var {Promise}
+         * @private
+         */
+        AddCategory.prototype.strings = 0;
+
+        AddCategory.prototype.registerEventListeners = function() {
+
+            var trigger = $(SELECTORS.CATEGORY_LINK);
+            trigger.on('click', function() {
+                this.strings.then(function(strings) {
+                    return Promise.all([
+                        ModalSaveCancel.create({
+                            title: strings[0],
+                            body: '',
+                        }),
+                        strings[1],
+                    ]).then(function([modal, string]) {
+                        this.setupFormModal(modal, string);
+                        return modal;
+                    }.bind(this));
+                }.bind(this))
+                .catch(Notification.exception);
+            }.bind(this));
+
+        };
+
+        /**
+         * @method getBody
+         * @param {Object} formdata
+         * @private
+         * @return {Promise}
+         */
+        AddCategory.prototype.getBody = function(formdata) {
+
+            var params = null;
+            if (typeof formdata !== "undefined") {
+                params = {jsonformdata: JSON.stringify(formdata)};
+            }
+            // Get the content of the modal.
+            return Fragment.loadFragment('tool_dataprivacy', 'addcategory_form', this.contextId, params);
+        };
+
+        AddCategory.prototype.setupFormModal = function(modal, saveText) {
+            modal.setLarge();
+
+            modal.setSaveButtonText(saveText);
+
+            // We want to reset the form every time it is opened.
+            modal.getRoot().on(ModalEvents.hidden, this.destroy.bind(this));
+
+            modal.setBody(this.getBody());
+
+            // We catch the modal save event, and use it to submit the form inside the modal.
+            // Triggering a form submission will give JS validation scripts a chance to check for errors.
+            modal.getRoot().on(ModalEvents.save, this.submitForm.bind(this));
+            // We also catch the form submit event and use it to submit the form with ajax.
+            modal.getRoot().on('submit', 'form', this.submitFormAjax.bind(this));
+
+            this.modal = modal;
+
+            modal.show();
+        };
+
+        /**
+         * This triggers a form submission, so that any mform elements can do final tricks before the form submission is processed.
+         *
+         * @method submitForm
+         * @param {Event} e Form submission event.
+         * @private
+         */
+        AddCategory.prototype.submitForm = function(e) {
+            e.preventDefault();
+            this.modal.getRoot().find('form').submit();
+        };
+
+        AddCategory.prototype.submitFormAjax = function(e) {
+            // We don't want to do a real form submission.
+            e.preventDefault();
+
+            // Convert all the form elements values to a serialised string.
+            var formData = this.modal.getRoot().find('form').serialize();
+
+            Ajax.call([{
+                methodname: 'tool_dataprivacy_create_category_form',
+                args: {jsonformdata: JSON.stringify(formData)},
+                done: function(data) {
+                    if (data.validationerrors) {
+                        this.modal.setBody(this.getBody(formData));
+                    } else {
+                        this.close();
+                    }
+                }.bind(this),
+                fail: Notification.exception
+            }]);
+        };
+
+        AddCategory.prototype.close = function() {
+            this.destroy();
+            document.location.reload();
+        };
+
+        AddCategory.prototype.destroy = function() {
+            FormChangeChecker.resetAllFormDirtyStates();
+            this.modal.destroy();
+        };
+
+        AddCategory.prototype.removeListeners = function() {
+            $(SELECTORS.CATEGORY_LINK).off('click');
+        };
+
+        return /** @alias module:tool_dataprivacy/add_category */ {
+            getInstance: function(contextId) {
+                return new AddCategory(contextId);
+            }
+        };
+    }
+);

admin/tool/dataprivacy/amd/src/add_purpose.js

@@ -0,0 +1,188 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Module to add purposes.
+ *
+ * @module     tool_dataprivacy/add_purpose
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define([
+    'jquery',
+    'core/str',
+    'core/ajax',
+    'core/notification',
+    'core/modal_save_cancel',
+    'core/modal_events',
+    'core/fragment',
+    'core_form/changechecker',
+], function(
+    $,
+    Str,
+    Ajax,
+    Notification,
+    ModalSaveCancel,
+    ModalEvents,
+    Fragment,
+    FormChangeChecker
+) {
+
+        var SELECTORS = {
+            PURPOSE_LINK: '[data-add-element="purpose"]',
+        };
+
+        var AddPurpose = function(contextId) {
+            this.contextId = contextId;
+
+            var stringKeys = [
+                {
+                    key: 'addpurpose',
+                    component: 'tool_dataprivacy'
+                },
+                {
+                    key: 'save',
+                    component: 'admin'
+                }
+            ];
+            this.strings = Str.get_strings(stringKeys);
+
+            this.registerEventListeners();
+        };
+
+        /**
+         * @var {int} contextId
+         * @private
+         */
+        AddPurpose.prototype.contextId = 0;
+
+        /**
+         * @var {Promise}
+         * @private
+         */
+        AddPurpose.prototype.strings = 0;
+
+        AddPurpose.prototype.registerEventListeners = function() {
+
+            var trigger = $(SELECTORS.PURPOSE_LINK);
+            trigger.on('click', function() {
+                this.strings.then(function(strings) {
+                    return Promise.all([
+                        ModalSaveCancel.create({
+                            title: strings[0],
+                            body: '',
+                        }),
+                        strings[1],
+                    ]).then(function([modal, string]) {
+                        this.setupFormModal(modal, string);
+                    }.bind(this));
+                }.bind(this))
+                .catch(Notification.exception);
+            }.bind(this));
+
+        };
+
+        /**
+         * @method getBody
+         * @param {Object} formdata
+         * @private
+         * @return {Promise}
+         */
+        AddPurpose.prototype.getBody = function(formdata) {
+
+            var params = null;
+            if (typeof formdata !== "undefined") {
+                params = {jsonformdata: JSON.stringify(formdata)};
+            }
+            // Get the content of the modal.
+            return Fragment.loadFragment('tool_dataprivacy', 'addpurpose_form', this.contextId, params);
+        };
+
+        AddPurpose.prototype.setupFormModal = function(modal, saveText) {
+            modal.setLarge();
+
+            modal.setSaveButtonText(saveText);
+
+            // We want to reset the form every time it is opened.
+            modal.getRoot().on(ModalEvents.hidden, this.destroy.bind(this));
+
+            modal.setBody(this.getBody());
+
+            // We catch the modal save event, and use it to submit the form inside the modal.
+            // Triggering a form submission will give JS validation scripts a chance to check for errors.
+            modal.getRoot().on(ModalEvents.save, this.submitForm.bind(this));
+            // We also catch the form submit event and use it to submit the form with ajax.
+            modal.getRoot().on('submit', 'form', this.submitFormAjax.bind(this));
+
+            this.modal = modal;
+
+            modal.show();
+        };
+
+        /**
+         * This triggers a form submission, so that any mform elements can do final tricks before the form submission is processed.
+         *
+         * @method submitForm
+         * @param {Event} e Form submission event.
+         * @private
+         */
+        AddPurpose.prototype.submitForm = function(e) {
+            e.preventDefault();
+            this.modal.getRoot().find('form').submit();
+        };
+
+        AddPurpose.prototype.submitFormAjax = function(e) {
+            // We don't want to do a real form submission.
+            e.preventDefault();
+
+            // Convert all the form elements values to a serialised string.
+            var formData = this.modal.getRoot().find('form').serialize();
+
+            Ajax.call([{
+                methodname: 'tool_dataprivacy_create_purpose_form',
+                args: {jsonformdata: JSON.stringify(formData)},
+                done: function(data) {
+                    if (data.validationerrors) {
+                        this.modal.setBody(this.getBody(formData));
+                    } else {
+                        this.close();
+                    }
+                }.bind(this),
+
+                fail: Notification.exception
+            }]);
+        };
+
+        AddPurpose.prototype.close = function() {
+            this.destroy();
+            document.location.reload();
+        };
+
+        AddPurpose.prototype.destroy = function() {
+            FormChangeChecker.resetAllFormDirtyStates();
+            this.modal.destroy();
+        };
+
+        AddPurpose.prototype.removeListeners = function() {
+            $(SELECTORS.PURPOSE_LINK).off('click');
+        };
+
+        return /** @alias module:tool_dataprivacy/add_purpose */ {
+            getInstance: function(contextId) {
+                return new AddPurpose(contextId);
+            }
+        };
+    }
+);

admin/tool/dataprivacy/amd/src/categoriesactions.js

@@ -0,0 +1,131 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * AMD module for categories actions.
+ *
+ * @module     tool_dataprivacy/categoriesactions
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+import * as Ajax from 'core/ajax';
+import * as Notification from 'core/notification';
+import * as Str from 'core/str';
+import ModalEvents from 'core/modal_events';
+import ModalSaveCancel from 'core/modal_save_cancel';
+
+/**
+ * List of action selectors.
+ *
+ * @type {{DELETE: string}}
+ */
+const ACTIONS = {
+    DELETE: '[data-action="deletecategory"]',
+};
+
+export default class CategoriesActions {
+
+    static init() {
+        return new this();
+    }
+
+    /**
+     * CategoriesActions class.
+     */
+    constructor() {
+        this.registerEvents();
+    }
+
+    deleteCategory(id) {
+        return Ajax.call([{
+            methodname: 'tool_dataprivacy_delete_category',
+            args: {id}
+        }])[0];
+    }
+
+    handleCategoryRemoval(id) {
+        this.deleteCategory(id)
+            .then((data) => {
+                if (data.result) {
+                    document.querySelector(`tr[data-categoryid="${id}"]`)?.remove();
+                } else {
+                    Notification.addNotification({
+                        message: data.warnings[0].message,
+                        type: 'error'
+                    });
+                }
+
+                return;
+            })
+            .catch(Notification.exception);
+
+    }
+
+    /**
+     * Register event listeners.
+     */
+    registerEvents() {
+        document.addEventListener('click', (e) => {
+            const target = e.target.closest(ACTIONS.DELETE);
+            if (!target) {
+                return;
+            }
+
+            e.preventDefault();
+
+            this.confirmCategoryRemoval(target);
+        });
+    }
+
+    confirmCategoryRemoval(target) {
+        const id = target.dataset.id;
+        var categoryname = target.dataset.name;
+        var stringkeys = [
+            {
+                key: 'deletecategory',
+                component: 'tool_dataprivacy'
+            },
+            {
+                key: 'deletecategorytext',
+                component: 'tool_dataprivacy',
+                param: categoryname
+            },
+            {
+                key: 'delete'
+            }
+        ];
+
+        Str.get_strings(stringkeys).then(([
+            title,
+            body,
+            save,
+        ]) => ModalSaveCancel.create({
+            title,
+            body,
+            buttons: {
+                save,
+            },
+            show: true,
+            removeOnClose: true,
+        }))
+        .then((modal) => {
+            // Handle save event.
+            modal.getRoot().on(ModalEvents.save, () => this.handleCategoryRemoval(id));
+
+            return modal;
+        })
+        .catch(Notification.exception);
+    }
+}

admin/tool/dataprivacy/amd/src/contactdpo.js

@@ -0,0 +1,66 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Javascript module for contacting the site DPO
+ *
+ * @module      tool_dataprivacy/contactdpo
+ * @copyright   2021 Paul Holden <paulh@moodle.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+import ModalForm from 'core_form/modalform';
+import Notification from 'core/notification';
+import {getString} from 'core/str';
+import {add as addToast} from 'core/toast';
+
+const SELECTORS = {
+    CONTACT_DPO: '[data-action="contactdpo"]',
+};
+
+/**
+ * Initialize module
+ */
+export const init = () => {
+    const triggerElement = document.querySelector(SELECTORS.CONTACT_DPO);
+
+    triggerElement.addEventListener('click', event => {
+        event.preventDefault();
+
+        const modalForm = new ModalForm({
+            modalConfig: {
+                title: getString('contactdataprotectionofficer', 'tool_dataprivacy'),
+            },
+            formClass: 'tool_dataprivacy\\form\\contactdpo',
+            saveButtonText: getString('send', 'tool_dataprivacy'),
+            returnFocus: triggerElement,
+        });
+
+        // Show a toast notification when the form is submitted.
+        modalForm.addEventListener(modalForm.events.FORM_SUBMITTED, event => {
+            if (event.detail.result) {
+                getString('requestsubmitted', 'tool_dataprivacy').then(addToast).catch();
+            } else {
+                const warningMessages = event.detail.warnings.map(warning => warning.message);
+                Notification.addNotification({
+                    type: 'error',
+                    message: warningMessages.join('<br>')
+                });
+            }
+        });
+
+        modalForm.show();
+    });
+};

admin/tool/dataprivacy/amd/src/data_deletion.js

@@ -0,0 +1,154 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Request actions.
+ *
+ * @module     tool_dataprivacy/data_deletion
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define([
+    'jquery',
+    'core/ajax',
+    'core/notification',
+    'core/str',
+    'core/modal_save_cancel',
+    'core/modal_events'],
+function($, Ajax, Notification, Str, ModalSaveCancel, ModalEvents) {
+
+    /**
+     * List of action selectors.
+     *
+     * @type {{MARK_FOR_DELETION: string}}
+     * @type {{SELECT_ALL: string}}
+     */
+    var ACTIONS = {
+        MARK_FOR_DELETION: '[data-action="markfordeletion"]',
+        SELECT_ALL: '[data-action="selectall"]',
+    };
+
+    /**
+     * List of selectors.
+     *
+     * @type {{SELECTCONTEXT: string}}
+     */
+    var SELECTORS = {
+        SELECTCONTEXT: '.selectcontext',
+    };
+
+    /**
+     * DataDeletionActions class.
+     */
+    var DataDeletionActions = function() {
+        this.registerEvents();
+    };
+
+    /**
+     * Register event listeners.
+     */
+    DataDeletionActions.prototype.registerEvents = function() {
+        $(ACTIONS.MARK_FOR_DELETION).click(function(e) {
+            e.preventDefault();
+
+            var selectedIds = [];
+            $(SELECTORS.SELECTCONTEXT).each(function() {
+                var checkbox = $(this);
+                if (checkbox.is(':checked')) {
+                    selectedIds.push(checkbox.val());
+                }
+            });
+            showConfirmation(selectedIds);
+        });
+
+        $(ACTIONS.SELECT_ALL).change(function(e) {
+            e.preventDefault();
+
+            var selectallnone = $(this);
+            if (selectallnone.is(':checked')) {
+                $(SELECTORS.SELECTCONTEXT).attr('checked', 'checked');
+            } else {
+                $(SELECTORS.SELECTCONTEXT).removeAttr('checked');
+            }
+        });
+    };
+
+    /**
+     * Show the confirmation dialogue.
+     *
+     * @param {Array} ids The array of expired context record IDs.
+     */
+    function showConfirmation(ids) {
+        var keys = [
+            {
+                key: 'confirm',
+                component: 'moodle'
+            },
+            {
+                key: 'confirmcontextdeletion',
+                component: 'tool_dataprivacy'
+            }
+        ];
+        var wsfunction = 'tool_dataprivacy_confirm_contexts_for_deletion';
+
+        var modalTitle = '';
+        Str.get_strings(keys).then(function(langStrings) {
+            modalTitle = langStrings[0];
+            var confirmMessage = langStrings[1];
+            return ModalSaveCancel.create({
+                title: modalTitle,
+                body: confirmMessage,
+            });
+        }).then(function(modal) {
+            modal.setSaveButtonText(modalTitle);
+
+            // Handle save event.
+            modal.getRoot().on(ModalEvents.save, function() {
+                // Confirm the request.
+                var params = {
+                    'ids': ids
+                };
+
+                var request = {
+                    methodname: wsfunction,
+                    args: params
+                };
+
+                Ajax.call([request])[0].done(function(data) {
+                    if (data.result) {
+                        window.location.reload();
+                    } else {
+                        Notification.addNotification({
+                            message: data.warnings[0].message,
+                            type: 'error'
+                        });
+                    }
+                }).fail(Notification.exception);
+            });
+
+            // Handle hidden event.
+            modal.getRoot().on(ModalEvents.hidden, function() {
+                // Destroy when hidden.
+                modal.destroy();
+            });
+
+            return modal;
+        }).done(function(modal) {
+            modal.show();
+        }).fail(Notification.exception);
+    }
+
+    return DataDeletionActions;
+});

admin/tool/dataprivacy/amd/src/data_registry.js

@@ -0,0 +1,311 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Request actions.
+ *
+ * @module     tool_dataprivacy/data_registry
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define(['jquery', 'core/str', 'core/ajax', 'core/notification', 'core/templates',
+    'core/fragment', 'tool_dataprivacy/add_purpose', 'tool_dataprivacy/add_category'],
+    function($, Str, Ajax, Notification, Templates, Fragment, AddPurpose, AddCategory) {
+
+        var SELECTORS = {
+            TREE_NODES: '[data-context-tree-node=1]',
+            FORM_CONTAINER: '#context-form-container',
+        };
+
+        var DataRegistry = function(systemContextId, initContextLevel, initContextId) {
+            this.systemContextId = systemContextId;
+            this.currentContextLevel = initContextLevel;
+            this.currentContextId = initContextId;
+            this.init();
+        };
+
+        /**
+         * @var {int} systemContextId
+         * @private
+         */
+        DataRegistry.prototype.systemContextId = 0;
+
+        /**
+         * @var {int} currentContextLevel
+         * @private
+         */
+        DataRegistry.prototype.currentContextLevel = 0;
+
+        /**
+         * @var {int} currentContextId
+         * @private
+         */
+        DataRegistry.prototype.currentContextId = 0;
+
+        /**
+         * @var {AddPurpose} addpurpose
+         * @private
+         */
+        DataRegistry.prototype.addpurpose = null;
+
+        /**
+         * @var {AddCategory} addcategory
+         * @private
+         */
+        DataRegistry.prototype.addcategory = null;
+
+        DataRegistry.prototype.init = function() {
+            // Add purpose and category modals always at system context.
+            this.addpurpose = AddPurpose.getInstance(this.systemContextId);
+            this.addcategory = AddCategory.getInstance(this.systemContextId);
+
+            var stringKeys = [
+                {
+                    key: 'changessaved',
+                    component: 'moodle'
+                }, {
+                    key: 'contextpurposecategorysaved',
+                    component: 'tool_dataprivacy'
+                }, {
+                    key: 'noblockstoload',
+                    component: 'tool_dataprivacy'
+                }, {
+                    key: 'noactivitiestoload',
+                    component: 'tool_dataprivacy'
+                }, {
+                    key: 'nocoursestoload',
+                    component: 'tool_dataprivacy'
+                }
+            ];
+            this.strings = Str.get_strings(stringKeys);
+
+            this.registerEventListeners();
+
+            // Load the default context level form.
+            if (this.currentContextId) {
+                this.loadForm('context_form', [this.currentContextId], this.submitContextFormAjax.bind(this));
+            } else {
+                this.loadForm('contextlevel_form', [this.currentContextLevel], this.submitContextLevelFormAjax.bind(this));
+            }
+        };
+
+        DataRegistry.prototype.registerEventListeners = function() {
+            $(SELECTORS.TREE_NODES).on('click', function(ev) {
+                ev.preventDefault();
+
+                var trigger = $(ev.currentTarget);
+
+                // Active node.
+                $(SELECTORS.TREE_NODES).removeClass('active');
+                trigger.addClass('active');
+
+                var contextLevel = trigger.data('contextlevel');
+                var contextId = trigger.data('contextid');
+                if (contextLevel) {
+                    // Context level level.
+
+                    window.history.pushState({}, null, '?contextlevel=' + contextLevel);
+
+                    // Remove previous add purpose and category listeners to avoid memory leaks.
+                    this.addpurpose.removeListeners();
+                    this.addcategory.removeListeners();
+
+                    // Load the context level form.
+                    this.currentContextLevel = contextLevel;
+                    this.loadForm('contextlevel_form', [this.currentContextLevel], this.submitContextLevelFormAjax.bind(this));
+                } else if (contextId) {
+                    // Context instance level.
+
+                    window.history.pushState({}, null, '?contextid=' + contextId);
+
+                    // Remove previous add purpose and category listeners to avoid memory leaks.
+                    this.addpurpose.removeListeners();
+                    this.addcategory.removeListeners();
+
+                    // Load the context level form.
+                    this.currentContextId = contextId;
+                    this.loadForm('context_form', [this.currentContextId], this.submitContextFormAjax.bind(this));
+                } else {
+                    // Expandable nodes.
+
+                    var expandContextId = trigger.data('expandcontextid');
+                    var expandElement = trigger.data('expandelement');
+                    var expanded = trigger.data('expanded');
+
+                    // Extra checking that there is an expandElement because we remove it after loading 0 branches.
+                    if (expandElement) {
+
+                        if (!expanded) {
+                            if (trigger.data('loaded') || !expandContextId || !expandElement) {
+                                this.expand(trigger);
+                            } else {
+
+                                trigger.find('> i').removeClass('fa-plus');
+                                trigger.find('> i').addClass('fa-circle-o-notch fa-spin');
+                                this.loadExtra(trigger, expandContextId, expandElement);
+                            }
+                        } else {
+                            this.collapse(trigger);
+                        }
+                    }
+                }
+
+            }.bind(this));
+        };
+
+        DataRegistry.prototype.removeListeners = function() {
+            $(SELECTORS.TREE_NODES).off('click');
+        };
+
+        DataRegistry.prototype.loadForm = function(fragmentName, fragmentArgs, formSubmitCallback) {
+
+            this.clearForm();
+
+            var fragment = Fragment.loadFragment('tool_dataprivacy', fragmentName, this.systemContextId, fragmentArgs);
+            fragment.done(function(html, js) {
+
+                $(SELECTORS.FORM_CONTAINER).html(html);
+                Templates.runTemplateJS(js);
+
+                this.addpurpose.registerEventListeners();
+                this.addcategory.registerEventListeners();
+
+                // We also catch the form submit event and use it to submit the form with ajax.
+                $(SELECTORS.FORM_CONTAINER).on('submit', 'form', formSubmitCallback);
+
+            }.bind(this)).fail(Notification.exception);
+        };
+
+        DataRegistry.prototype.clearForm = function() {
+            // Remove previous listeners.
+            $(SELECTORS.FORM_CONTAINER).off('submit', 'form');
+        };
+
+        /**
+         * This triggers a form submission, so that any mform elements can do final tricks before the form submission is processed.
+         *
+         * @method submitForm
+         * @param {Event} e Form submission event.
+         * @private
+         */
+        DataRegistry.prototype.submitForm = function(e) {
+            e.preventDefault();
+            $(SELECTORS.FORM_CONTAINER).find('form').submit();
+        };
+
+        DataRegistry.prototype.submitContextLevelFormAjax = function(e) {
+            this.submitFormAjax(e, 'tool_dataprivacy_set_contextlevel_form');
+        };
+
+        DataRegistry.prototype.submitContextFormAjax = function(e) {
+            this.submitFormAjax(e, 'tool_dataprivacy_set_context_form');
+        };
+
+        DataRegistry.prototype.submitFormAjax = function(e, saveMethodName) {
+            // We don't want to do a real form submission.
+            e.preventDefault();
+
+            // Convert all the form elements values to a serialised string.
+            var formData = $(SELECTORS.FORM_CONTAINER).find('form').serialize();
+            return this.strings.then(function(strings) {
+                Ajax.call([{
+                    methodname: saveMethodName,
+                    args: {jsonformdata: JSON.stringify(formData)},
+                    done: function() {
+                        Notification.alert(strings[0], strings[1]);
+                    },
+                    fail: Notification.exception
+                }]);
+                return;
+            }).catch(Notification.exception);
+
+        };
+
+        DataRegistry.prototype.loadExtra = function(parentNode, expandContextId, expandElement) {
+
+            Ajax.call([{
+                methodname: 'tool_dataprivacy_tree_extra_branches',
+                args: {
+                    contextid: expandContextId,
+                    element: expandElement,
+                },
+                done: function(data) {
+                    if (data.branches.length == 0) {
+                        this.noElements(parentNode, expandElement);
+                        return;
+                    }
+                    Templates.render('tool_dataprivacy/context_tree_branches', data)
+                        .then(function(html) {
+                            parentNode.after(html);
+                            this.removeListeners();
+                            this.registerEventListeners();
+                            this.expand(parentNode);
+                            parentNode.data('loaded', 1);
+                            return;
+                        }.bind(this))
+                        .fail(Notification.exception);
+                }.bind(this),
+                fail: Notification.exception
+            }]);
+        };
+
+        DataRegistry.prototype.noElements = function(node, expandElement) {
+            node.data('expandcontextid', '');
+            node.data('expandelement', '');
+            this.strings.then(function(strings) {
+
+                // 2 = blocks, 3 = activities, 4 = courses (although courses is not likely really).
+                var key = 2;
+                if (expandElement == 'module') {
+                    key = 3;
+                } else if (expandElement == 'course') {
+                    key = 4;
+                }
+                node.text(strings[key]);
+                return;
+            }).fail(Notification.exception);
+        };
+
+        DataRegistry.prototype.collapse = function(node) {
+            node.data('expanded', 0);
+            node.siblings('nav').addClass('hidden');
+            node.find('> i').removeClass('fa-minus');
+            node.find('> i').addClass('fa-plus');
+        };
+
+        DataRegistry.prototype.expand = function(node) {
+            node.data('expanded', 1);
+            node.siblings('nav').removeClass('hidden');
+            node.find('> i').removeClass('fa-plus');
+            // Also remove the spinning one if data was just loaded.
+            node.find('> i').removeClass('fa-circle-o-notch fa-spin');
+            node.find('> i').addClass('fa-minus');
+        };
+        return /** @alias module:tool_dataprivacy/data_registry */ {
+
+            /**
+             * Initialise the page.
+             *
+             * @param {Number} systemContextId
+             * @param {Number} initContextLevel
+             * @param {Number} initContextId
+             * @return {DataRegistry}
+             */
+            init: function(systemContextId, initContextLevel, initContextId) {
+                return new DataRegistry(systemContextId, initContextLevel, initContextId);
+            }
+        };
+    }
+);

admin/tool/dataprivacy/amd/src/data_request_modal.js

@@ -0,0 +1,90 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Request actions.
+ *
+ * @module     tool_dataprivacy/data_request_modal
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+import $ from 'jquery';
+import * as CustomEvents from 'core/custom_interaction_events';
+import Modal from 'core/modal';
+import DataPrivacyEvents from './events';
+
+const SELECTORS = {
+    APPROVE_BUTTON: '[data-action="approve"]',
+    DENY_BUTTON: '[data-action="deny"]',
+    COMPLETE_BUTTON: '[data-action="complete"]',
+    APPROVE_REQUEST_SELECT_COURSE: '[data-action="approve-selected-courses"]',
+};
+
+export default class ModalDataRequest extends Modal {
+    static TYPE = 'tool_dataprivacy-data_request';
+    static TEMPLATE = 'tool_dataprivacy/data_request_modal';
+
+    /**
+     * Set up all of the event handling for the modal.
+     */
+    registerEventListeners() {
+        // Apply parent event listeners.
+        super.registerEventListeners(this);
+
+        this.getModal().on(CustomEvents.events.activate, SELECTORS.APPROVE_BUTTON, (e, data) => {
+            const approveEvent = $.Event(DataPrivacyEvents.approve);
+            this.getRoot().trigger(approveEvent, this);
+
+            if (!approveEvent.isDefaultPrevented()) {
+                this.hide();
+                data.originalEvent.preventDefault();
+            }
+        });
+
+        this.getModal().on(CustomEvents.events.activate, SELECTORS.DENY_BUTTON, (e, data) => {
+            const denyEvent = $.Event(DataPrivacyEvents.deny);
+            this.getRoot().trigger(denyEvent, this);
+
+            if (!denyEvent.isDefaultPrevented()) {
+                this.hide();
+                data.originalEvent.preventDefault();
+            }
+        });
+
+        this.getModal().on(CustomEvents.events.activate, SELECTORS.COMPLETE_BUTTON, (e, data) => {
+            const completeEvent = $.Event(DataPrivacyEvents.complete);
+            this.getRoot().trigger(completeEvent, this);
+
+            if (!completeEvent.isDefaultPrevented()) {
+                this.hide();
+                data.originalEvent.preventDefault();
+            }
+        });
+
+        this.getModal().on(CustomEvents.events.activate, SELECTORS.APPROVE_REQUEST_SELECT_COURSE, (e, data) => {
+            let approveSelectCoursesEvent = $.Event(DataPrivacyEvents.approveSelectCourses);
+            this.getRoot().trigger(approveSelectCoursesEvent, this);
+
+            if (!approveSelectCoursesEvent.isDefaultPrevented()) {
+                this.hide();
+                data.originalEvent.preventDefault();
+            }
+        });
+
+    }
+}
+
+ModalDataRequest.registerModalType();

admin/tool/dataprivacy/amd/src/defaultsactions.js

@@ -0,0 +1,300 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * AMD module for data registry defaults actions.
+ *
+ * @module     tool_dataprivacy/defaultsactions
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define([
+    'jquery',
+    'core/ajax',
+    'core/notification',
+    'core/str',
+    'core/modal_save_cancel',
+    'core/modal_events',
+    'core/templates'],
+function($, Ajax, Notification, Str, ModalSaveCancel, ModalEvents, Templates) {
+
+    /**
+     * List of action selectors.
+     *
+     * @type {{EDIT_LEVEL_DEFAULTS: string}}
+     * @type {{NEW_ACTIVITY_DEFAULTS: string}}
+     * @type {{EDIT_ACTIVITY_DEFAULTS: string}}
+     * @type {{DELETE_ACTIVITY_DEFAULTS: string}}
+     */
+    var ACTIONS = {
+        EDIT_LEVEL_DEFAULTS: '[data-action="edit-level-defaults"]',
+        NEW_ACTIVITY_DEFAULTS: '[data-action="new-activity-defaults"]',
+        EDIT_ACTIVITY_DEFAULTS: '[data-action="edit-activity-defaults"]',
+        DELETE_ACTIVITY_DEFAULTS: '[data-action="delete-activity-defaults"]'
+    };
+
+    /** @type {{INHERIT: Number}} **/
+    var INHERIT = -1;
+
+    /**
+     * DefaultsActions class.
+     */
+    var DefaultsActions = function() {
+        this.registerEvents();
+    };
+
+    /**
+     * Register event listeners.
+     */
+    DefaultsActions.prototype.registerEvents = function() {
+        $(ACTIONS.EDIT_LEVEL_DEFAULTS).click(function(e) {
+            e.preventDefault();
+
+            var button = $(this);
+            var contextLevel = button.data('contextlevel');
+            var category = button.data('category');
+            var purpose = button.data('purpose');
+
+            // Get options.
+            var requests = [
+                {methodname: 'tool_dataprivacy_get_category_options', args: {}},
+                {methodname: 'tool_dataprivacy_get_purpose_options', args: {}}
+            ];
+
+            var promises = Ajax.call(requests);
+            var titlePromise = Str.get_string('editdefaults', 'tool_dataprivacy', $('#defaults-header').text());
+            $.when(promises[0], promises[1], titlePromise).then(function(categoryResponse, purposeResponse, title) {
+                var categories = categoryResponse.options;
+                var purposes = purposeResponse.options;
+                showDefaultsFormModal(title, contextLevel, category, purpose, null, categories, purposes, null);
+
+                return true;
+            }).catch(Notification.exception);
+        });
+
+        $(ACTIONS.NEW_ACTIVITY_DEFAULTS).click(function(e) {
+            e.preventDefault();
+
+            var button = $(this);
+            var contextLevel = button.data('contextlevel');
+
+            // Get options.
+            var requests = [
+                {methodname: 'tool_dataprivacy_get_category_options', args: {}},
+                {methodname: 'tool_dataprivacy_get_purpose_options', args: {}},
+                {methodname: 'tool_dataprivacy_get_activity_options', args: {'nodefaults': true}}
+            ];
+
+            var promises = Ajax.call(requests);
+            var titlePromise = Str.get_string('addnewdefaults', 'tool_dataprivacy');
+
+            $.when(promises[0], promises[1], promises[2], titlePromise).then(
+                function(categoryResponse, purposeResponse, activityResponse, title) {
+                    var categories = categoryResponse.options;
+                    var purposes = purposeResponse.options;
+                    var activities = activityResponse.options;
+
+                    showDefaultsFormModal(title, contextLevel, null, null, null, categories, purposes, activities);
+
+                    return true;
+
+                }).catch(Notification.exception);
+            }
+        );
+
+        $(ACTIONS.EDIT_ACTIVITY_DEFAULTS).click(function(e) {
+            e.preventDefault();
+
+            var button = $(this);
+            var contextLevel = button.data('contextlevel');
+            var category = button.data('category');
+            var purpose = button.data('purpose');
+            var activity = button.data('activityname');
+
+            // Get options.
+            var requests = [
+                {methodname: 'tool_dataprivacy_get_category_options', args: {}},
+                {methodname: 'tool_dataprivacy_get_purpose_options', args: {}},
+                {methodname: 'tool_dataprivacy_get_activity_options', args: {}}
+            ];
+
+            var promises = Ajax.call(requests);
+            var titlePromise = Str.get_string('editmoduledefaults', 'tool_dataprivacy');
+
+            $.when(promises[0], promises[1], promises[2], titlePromise).then(
+                function(categoryResponse, purposeResponse, activityResponse, title) {
+                    var categories = categoryResponse.options;
+                    var purposes = purposeResponse.options;
+                    var activities = activityResponse.options;
+
+                    showDefaultsFormModal(title, contextLevel, category, purpose, activity, categories, purposes, activities);
+
+                    return true;
+
+                }).catch(Notification.exception);
+            }
+        );
+
+        $(ACTIONS.DELETE_ACTIVITY_DEFAULTS).click(function(e) {
+            e.preventDefault();
+
+            var button = $(this);
+            var contextLevel = button.data('contextlevel');
+            var activity = button.data('activityname');
+            var activityDisplayName = button.data('activitydisplayname');
+            // Set category and purpose to inherit (-1).
+            var category = INHERIT;
+            var purpose = INHERIT;
+
+            ModalSaveCancel.create({
+                title: Str.get_string('deletedefaults', 'tool_dataprivacy', activityDisplayName),
+                body: Templates.render('tool_dataprivacy/delete_activity_defaults', {"activityname": activityDisplayName}),
+                large: true,
+                show: true,
+                removeOnClose: true,
+            }).then(function(modal) {
+                modal.setSaveButtonText(Str.get_string('delete'));
+
+                // Handle save event.
+                modal.getRoot().on(ModalEvents.save, function() {
+                    setContextDefaults(contextLevel, category, purpose, activity, false);
+                });
+
+                return true;
+            }).catch(Notification.exception);
+        });
+    };
+
+    /**
+     * Prepares and renders the modal for setting the defaults for the given context level/plugin.
+     *
+     * @param {String} title The modal's title.
+     * @param {Number} contextLevel The context level to set defaults for.
+     * @param {Number} category The current category ID.
+     * @param {Number} purpose The current purpose ID.
+     * @param {String} activity The plugin name of the activity. Optional.
+     * @param {Array} categoryOptions The list of category options.
+     * @param {Array} purposeOptions The list of purpose options.
+     * @param {Array} activityOptions The list of activity options. Optional.
+     */
+    function showDefaultsFormModal(title, contextLevel, category, purpose, activity,
+                                   categoryOptions, purposeOptions, activityOptions) {
+
+        if (category !== null) {
+            categoryOptions.forEach(function(currentValue) {
+                if (currentValue.id === category) {
+                    currentValue.selected = true;
+                }
+            });
+        }
+
+        if (purpose !== null) {
+            purposeOptions.forEach(function(currentValue) {
+                if (currentValue.id === purpose) {
+                    currentValue.selected = true;
+                }
+            });
+        }
+
+        var templateContext = {
+            "contextlevel": contextLevel,
+            "categoryoptions": categoryOptions,
+            "purposeoptions": purposeOptions
+        };
+
+        // Check the activityOptions parameter that was passed.
+        if (activityOptions !== null && activityOptions.length) {
+            // Check the activity parameter that was passed.
+            if (activity === null) {
+                // We're setting a new defaults for a module.
+                templateContext.newactivitydefaults = true;
+
+            } else {
+                // Edit mode. Set selection.
+                activityOptions.forEach(function(currentValue) {
+                    if (activity === currentValue.name) {
+                        currentValue.selected = true;
+                    }
+                });
+            }
+
+            templateContext.modemodule = true;
+            templateContext.activityoptions = activityOptions;
+        }
+
+        ModalSaveCancel.create({
+            title: title,
+            body: Templates.render('tool_dataprivacy/category_purpose_form', templateContext),
+            large: true,
+            show: true,
+            removeOnClose: true,
+        }).then(function(modal) {
+
+            // Handle save event.
+            modal.getRoot().on(ModalEvents.save, function() {
+                var activity = $('#activity');
+                var activityVal = typeof activity !== 'undefined' ? activity.val() : null;
+                var override = $('#override');
+                var overrideVal = typeof override !== 'undefined' ? override.is(':checked') : false;
+
+                setContextDefaults($('#contextlevel').val(), $('#category').val(), $('#purpose').val(), activityVal, overrideVal);
+            });
+
+            return modal;
+        }).catch(Notification.exception);
+    }
+
+    /**
+     * Calls a the tool_dataprivacy_set_context_defaults WS function.
+     *
+     * @param {Number} contextLevel The context level.
+     * @param {Number} category The category ID.
+     * @param {Number} purpose The purpose ID.
+     * @param {String} activity The plugin name of the activity module.
+     * @param {Boolean} override Whether to override custom instances.
+     */
+    function setContextDefaults(contextLevel, category, purpose, activity, override) {
+        var request = {
+            methodname: 'tool_dataprivacy_set_context_defaults',
+            args: {
+                'contextlevel': contextLevel,
+                'category': category,
+                'purpose': purpose,
+                'override': override,
+                'activity': activity
+            }
+        };
+
+        Ajax.call([request])[0].done(function(data) {
+            if (data.result) {
+                window.location.reload();
+            }
+        });
+    }
+
+    return /** @alias module:tool_dataprivacy/defaultsactions */ {
+        // Public variables and functions.
+
+        /**
+         * Initialise the module.
+         *
+         * @method init
+         * @return {DefaultsActions}
+         */
+        'init': function() {
+            return new DefaultsActions();
+        }
+    };
+});

admin/tool/dataprivacy/amd/src/effective_retention_period.js

@@ -0,0 +1,79 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Module to update the displayed retention period.
+ *
+ * @module     tool_dataprivacy/effective_retention_period
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define(['jquery'],
+    function($) {
+
+        var SELECTORS = {
+            PURPOSE_SELECT: '#id_purposeid',
+            RETENTION_FIELD: '#fitem_id_retention_current [data-fieldtype=static]',
+        };
+
+        /**
+         * Constructor for the retention period display.
+         *
+         * @param {Array} purposeRetentionPeriods Associative array of purposeids with effective retention period at this context
+         */
+        var EffectiveRetentionPeriod = function(purposeRetentionPeriods) {
+            this.purposeRetentionPeriods = purposeRetentionPeriods;
+            this.registerEventListeners();
+        };
+
+        /**
+         * Removes the current 'change' listeners.
+         *
+         * Useful when a new form is loaded.
+         */
+        var removeListeners = function() {
+            $(SELECTORS.PURPOSE_SELECT).off('change');
+        };
+
+        /**
+         * @var {Array} purposeRetentionPeriods
+         * @private
+         */
+        EffectiveRetentionPeriod.prototype.purposeRetentionPeriods = [];
+
+        /**
+         * Add purpose change listeners.
+         *
+         * @method registerEventListeners
+         */
+        EffectiveRetentionPeriod.prototype.registerEventListeners = function() {
+
+            $(SELECTORS.PURPOSE_SELECT).on('change', function(ev) {
+                var selected = $(ev.currentTarget).val();
+                var selectedPurpose = this.purposeRetentionPeriods[selected];
+                $(SELECTORS.RETENTION_FIELD).text(selectedPurpose);
+            }.bind(this));
+        };
+
+        return /** @alias module:tool_dataprivacy/effective_retention_period */ {
+            init: function(purposeRetentionPeriods) {
+                // Remove previously attached listeners.
+                removeListeners();
+                return new EffectiveRetentionPeriod(purposeRetentionPeriods);
+            }
+        };
+    }
+);
+

admin/tool/dataprivacy/amd/src/events.js

@@ -0,0 +1,30 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Contain the events the data privacy tool can fire.
+ *
+ * @module     tool_dataprivacy/events
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+export default {
+    approve: 'tool_dataprivacy-data_request:approve',
+    bulkApprove: 'tool_dataprivacy-data_request:bulk_approve',
+    deny: 'tool_dataprivacy-data_request:deny',
+    bulkDeny: 'tool_dataprivacy-data_request:bulk_deny',
+    complete: 'tool_dataprivacy-data_request:complete',
+    approveSelectCourses: 'tool_dataprivacy-data_request:approve-selected-courses'
+};

admin/tool/dataprivacy/amd/src/expand_contract.js

@@ -0,0 +1,94 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Potential user selector module.
+ *
+ * @module     tool_dataprivacy/expand_contract
+ * @copyright  2018 Adrian Greeve
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+define(['jquery', 'core/url', 'core/str', 'core/notification'], function($, url, str, Notification) {
+
+    var expandedImage = $('<img alt="" src="' + url.imageUrl('t/expanded') + '"/>');
+    var collapsedImage = $('<img alt="" src="' + url.imageUrl('t/collapsed') + '"/>');
+
+    /*
+     * Class names to apply when expanding/collapsing nodes.
+     */
+    var CLASSES = {
+        EXPAND: 'fa-caret-right',
+        COLLAPSE: 'fa-caret-down'
+    };
+
+    return /** @alias module:tool_dataprivacy/expand-collapse */ {
+        /**
+         * Expand or collapse a selected node.
+         *
+         * @param  {object} targetnode The node that we want to expand / collapse
+         * @param  {object} thisnode The node that was clicked.
+         */
+        expandCollapse: function(targetnode, thisnode) {
+            if (targetnode.hasClass('hide')) {
+                targetnode.removeClass('hide');
+                targetnode.addClass('visible');
+                targetnode.attr('aria-expanded', true);
+                thisnode.find(':header i.fa').removeClass(CLASSES.EXPAND);
+                thisnode.find(':header i.fa').addClass(CLASSES.COLLAPSE);
+                thisnode.find(':header img.icon').attr('src', expandedImage.attr('src'));
+            } else {
+                targetnode.removeClass('visible');
+                targetnode.addClass('hide');
+                targetnode.attr('aria-expanded', false);
+                thisnode.find(':header i.fa').removeClass(CLASSES.COLLAPSE);
+                thisnode.find(':header i.fa').addClass(CLASSES.EXPAND);
+                thisnode.find(':header img.icon').attr('src', collapsedImage.attr('src'));
+            }
+        },
+
+        /**
+         * Expand or collapse all nodes on this page.
+         *
+         * @param  {string} nextstate The next state to change to.
+         */
+        expandCollapseAll: function(nextstate) {
+            var currentstate = (nextstate == 'visible') ? 'hide' : 'visible';
+            var ariaexpandedstate = (nextstate == 'visible') ? true : false;
+            var iconclassnow = (nextstate == 'visible') ? CLASSES.EXPAND : CLASSES.COLLAPSE;
+            var iconclassnext = (nextstate == 'visible') ? CLASSES.COLLAPSE : CLASSES.EXPAND;
+            var imagenow = (nextstate == 'visible') ? expandedImage.attr('src') : collapsedImage.attr('src');
+            $('.' + currentstate).each(function() {
+                $(this).removeClass(currentstate);
+                $(this).addClass(nextstate);
+                $(this).attr('aria-expanded', ariaexpandedstate);
+            });
+            $('.tool_dataprivacy-expand-all').data('visibilityState', currentstate);
+
+            str.get_string(currentstate, 'tool_dataprivacy').then(function(langString) {
+                $('.tool_dataprivacy-expand-all').html(langString);
+                return;
+            }).catch(Notification.exception);
+
+            $(':header i.fa').each(function() {
+                $(this).removeClass(iconclassnow);
+                $(this).addClass(iconclassnext);
+            });
+            $(':header img.icon').each(function() {
+                $(this).attr('src', imagenow);
+            });
+        }
+    };
+});

admin/tool/dataprivacy/amd/src/form-user-selector.js

@@ -0,0 +1,74 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Potential user selector module.
+ *
+ * @module     tool_dataprivacy/form-user-selector
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+define(['jquery', 'core/ajax', 'core/templates'], function($, Ajax, Templates) {
+
+    return /** @alias module:tool_dataprivacy/form-user-selector */ {
+
+        processResults: function(selector, results) {
+            var users = [];
+            $.each(results, function(index, user) {
+                users.push({
+                    value: user.id,
+                    label: user._label
+                });
+            });
+            return users;
+        },
+
+        transport: function(selector, query, success, failure) {
+            var promise;
+
+            promise = Ajax.call([{
+                methodname: 'tool_dataprivacy_get_users',
+                args: {
+                    query: query
+                }
+            }]);
+
+            promise[0].then(function(results) {
+                var promises = [],
+                    i = 0;
+
+                // Render the label.
+                $.each(results, function(index, user) {
+                    promises.push(Templates.render('tool_dataprivacy/form-user-selector-suggestion', user));
+                });
+
+                // Apply the label to the results.
+                return $.when.apply($.when, promises).then(function() {
+                    var args = arguments;
+                    $.each(results, function(index, user) {
+                        user._label = args[i];
+                        i++;
+                    });
+                    success(results);
+                    return;
+                });
+
+            }).fail(failure);
+        }
+
+    };
+
+});

admin/tool/dataprivacy/amd/src/myrequestactions.js

@@ -0,0 +1,72 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * AMD module to enable users to manage their own data requests.
+ *
+ * @module     tool_dataprivacy/myrequestactions
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+import Ajax from 'core/ajax';
+import Notification from 'core/notification';
+import Pending from 'core/pending';
+import {getStrings} from 'core/str';
+
+const SELECTORS = {
+    CANCEL_REQUEST: '[data-action="cancel"][data-requestid]',
+};
+
+/**
+ * Initialize module
+ */
+export const init = () => {
+    document.addEventListener('click', event => {
+        const triggerElement = event.target.closest(SELECTORS.CANCEL_REQUEST);
+        if (triggerElement === null) {
+            return;
+        }
+
+        event.preventDefault();
+
+        const requiredStrings = [
+            {key: 'cancelrequest', component: 'tool_dataprivacy'},
+            {key: 'cancelrequestconfirmation', component: 'tool_dataprivacy'},
+        ];
+
+        getStrings(requiredStrings).then(([cancelRequest, cancelConfirm]) => {
+            return Notification.confirm(cancelRequest, cancelConfirm, cancelRequest, null, () => {
+                const pendingPromise = new Pending('tool/dataprivacy:cancelRequest');
+                const request = {
+                    methodname: 'tool_dataprivacy_cancel_data_request',
+                    args: {requestid: triggerElement.dataset.requestid}
+                };
+
+                Ajax.call([request])[0].then(response => {
+                    if (response.result) {
+                        window.location.reload();
+                    } else {
+                        Notification.addNotification({
+                            type: 'error',
+                            message: response.warnings[0].message
+                        });
+                    }
+                    return pendingPromise.resolve();
+                }).catch(Notification.exception);
+            });
+        }).catch();
+    });
+};

admin/tool/dataprivacy/amd/src/purposesactions.js

@@ -0,0 +1,150 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * AMD module for purposes actions.
+ *
+ * @module     tool_dataprivacy/purposesactions
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Module for purpose actions.
+ *
+ * @module     tool_dataprivacy/purposeactions
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+import * as Ajax from 'core/ajax';
+import * as Notification from 'core/notification';
+import * as Str from 'core/str';
+import ModalEvents from 'core/modal_events';
+import ModalSaveCancel from 'core/modal_save_cancel';
+
+/**
+ * List of action selectors.
+ *
+ * @type {{DELETE: string}}
+ */
+const ACTIONS = {
+    DELETE: '[data-action="deletepurpose"]',
+};
+
+export default class PurposeActions {
+
+    static init() {
+        return new this();
+    }
+
+    constructor() {
+        this.registerEvents();
+    }
+
+    deletePurpose(id) {
+        return Ajax.call([{
+            methodname: 'tool_dataprivacy_delete_purpose',
+            args: {id}
+        }])[0];
+    }
+
+    handleRemoval(id) {
+        this.deletePurpose(id)
+            .then((data) => {
+                if (data.result) {
+                    document.querySelector(`tr[data-purposeid="${id}"]`)?.remove();
+                } else {
+                    Notification.addNotification({
+                        message: data.warnings[0].message,
+                        type: 'error'
+                    });
+                }
+
+                return;
+            })
+            .catch(Notification.exception);
+
+    }
+
+    /**
+     * Register event listeners.
+     */
+    registerEvents() {
+        document.addEventListener('click', (e) => {
+            const target = e.target.closest(ACTIONS.DELETE);
+            if (!target) {
+                return;
+            }
+
+            e.preventDefault();
+
+            this.confirmRemoval(target);
+        });
+    }
+
+    confirmRemoval(target) {
+        const id = target.dataset.id;
+        var purposename = target.dataset.name;
+        var stringkeys = [
+            {
+                key: 'deletepurpose',
+                component: 'tool_dataprivacy'
+            },
+            {
+                key: 'deletepurposetext',
+                component: 'tool_dataprivacy',
+                param: purposename
+            },
+            {
+                key: 'delete'
+            }
+        ];
+
+        Str.get_strings(stringkeys).then(([
+            title,
+            body,
+            save,
+        ]) => ModalSaveCancel.create({
+            title,
+            body,
+            buttons: {
+                save,
+            },
+            show: true,
+            removeOnClose: true,
+        }))
+            .then((modal) => {
+                // Handle save event.
+                modal.getRoot().on(ModalEvents.save, () => this.handleRemoval(id));
+
+                return modal;
+            })
+            .catch(Notification.exception);
+    }
+}

admin/tool/dataprivacy/amd/src/request_filter.js

@@ -0,0 +1,83 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * JS module for the data requests filter.
+ *
+ * @module     tool_dataprivacy/request_filter
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define(['jquery', 'core/form-autocomplete', 'core/str', 'core/notification'], function($, Autocomplete, Str, Notification) {
+
+    /**
+     * Selectors.
+     *
+     * @access private
+     * @type {{REQUEST_FILTERS: string}}
+     */
+    var SELECTORS = {
+        REQUEST_FILTERS: '#request-filters'
+    };
+
+    /**
+     * Init function.
+     *
+     * @method init
+     * @private
+     */
+    var init = function() {
+        var stringkeys = [
+            {
+                key: 'filter',
+                component: 'moodle'
+            },
+            {
+                key: 'nofiltersapplied',
+                component: 'moodle'
+            }
+        ];
+
+        Str.get_strings(stringkeys).then(function(langstrings) {
+            var placeholder = langstrings[0];
+            var noSelectionString = langstrings[1];
+            return Autocomplete.enhance(SELECTORS.REQUEST_FILTERS, false, '', placeholder, false, true, noSelectionString, true);
+        }).fail(Notification.exception);
+
+        var last = $(SELECTORS.REQUEST_FILTERS).val();
+        $(SELECTORS.REQUEST_FILTERS).on('change', function() {
+            var current = $(this).val();
+            // Prevent form from submitting unnecessarily, eg. on blur when no filter is selected.
+            if (last.join(',') !== current.join(',')) {
+                // If we're submitting without filters, set the hidden input 'filters-cleared' to 1.
+                if (current.length === 0) {
+                    $('#filters-cleared').val(1);
+                }
+                $(this.form).submit();
+            }
+        });
+    };
+
+    return /** @alias module:core/form-autocomplete */ {
+        /**
+         * Initialise the unified user filter.
+         *
+         * @method init
+         */
+        init: function() {
+            init();
+        }
+    };
+});

admin/tool/dataprivacy/amd/src/requestactions.js

@@ -0,0 +1,457 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Request actions.
+ *
+ * @module     tool_dataprivacy/requestactions
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define([
+    'jquery',
+    'core/ajax',
+    'core/notification',
+    'core/str',
+    'core/modal_save_cancel',
+    'core/modal_events',
+    'core/templates',
+    'tool_dataprivacy/data_request_modal',
+    'tool_dataprivacy/events',
+    'tool_dataprivacy/selectedcourses'
+], function(
+    $, Ajax, Notification, Str, ModalSaveCancel, ModalEvents, Templates, ModalDataRequest, DataPrivacyEvents, SelectedCourses
+) {
+
+    /**
+     * List of action selectors.
+     *
+     * @type {{APPROVE_REQUEST: string}}
+     * @type {{DENY_REQUEST: string}}
+     * @type {{VIEW_REQUEST: string}}
+     * @type {{MARK_COMPLETE: string}}
+     * @type {{CHANGE_BULK_ACTION: string}}
+     * @type {{CONFIRM_BULK_ACTION: string}}
+     * @type {{SELECT_ALL: string}}
+     */
+    var ACTIONS = {
+        APPROVE_REQUEST: '[data-action="approve"]',
+        DENY_REQUEST: '[data-action="deny"]',
+        VIEW_REQUEST: '[data-action="view"]',
+        MARK_COMPLETE: '[data-action="complete"]',
+        CHANGE_BULK_ACTION: '[id="bulk-action"]',
+        CONFIRM_BULK_ACTION: '[id="confirm-bulk-action"]',
+        SELECT_ALL: '[data-action="selectall"]',
+        APPROVE_REQUEST_SELECT_COURSE: '[data-action="approve-selected-courses"]',
+    };
+
+    /**
+     * List of available bulk actions.
+     *
+     * @type {{APPROVE: number}}
+     * @type {{DENY: number}}
+     */
+    var BULK_ACTIONS = {
+        APPROVE: 1,
+        DENY: 2
+    };
+
+    /**
+     * List of selectors.
+     *
+     * @type {{SELECT_REQUEST: string}}
+     */
+    var SELECTORS = {
+        SELECT_REQUEST: '.selectrequests'
+    };
+
+    /**
+     * RequestActions class.
+     */
+    var RequestActions = function() {
+        this.registerEvents();
+    };
+
+    /**
+     * Register event listeners.
+     */
+    RequestActions.prototype.registerEvents = function() {
+        $(ACTIONS.VIEW_REQUEST).click(function(e) {
+            e.preventDefault();
+
+            var requestId = $(this).data('requestid');
+            var contextId = $(this).data('contextid');
+
+            // Cancel the request.
+            var params = {
+                'requestid': requestId
+            };
+
+            var request = {
+                methodname: 'tool_dataprivacy_get_data_request',
+                args: params
+            };
+
+            var promises = Ajax.call([request]);
+            $.when(promises[0]).then(function(data) {
+                if (data.result) {
+                    return data.result;
+                }
+                // Fail.
+                Notification.addNotification({
+                    message: data.warnings[0].message,
+                    type: 'error'
+                });
+                return false;
+
+            }).then(function(data) {
+                var body = Templates.render('tool_dataprivacy/request_details', data);
+                var templateContext = {
+                    approvedeny: data.approvedeny,
+                    canmarkcomplete: data.canmarkcomplete,
+                    allowfiltering: data.allowfiltering
+                };
+                return ModalDataRequest.create({
+                    title: data.typename,
+                    body: body,
+                    large: true,
+                    templateContext: templateContext
+                });
+
+            }).then(function(modal) {
+                // Handle approve event.
+                modal.getRoot().on(DataPrivacyEvents.approve, function() {
+                    showConfirmation(DataPrivacyEvents.approve, approveEventWsData(requestId));
+                });
+
+                // Handle deny event.
+                modal.getRoot().on(DataPrivacyEvents.deny, function() {
+                    showConfirmation(DataPrivacyEvents.deny, denyEventWsData(requestId));
+                });
+
+                // Handle send event.
+                modal.getRoot().on(DataPrivacyEvents.complete, function() {
+                    var params = {
+                        'requestid': requestId
+                    };
+                    handleSave('tool_dataprivacy_mark_complete', params);
+                });
+
+                // Handle hidden event.
+                modal.getRoot().on(ModalEvents.hidden, function() {
+                    // Destroy when hidden.
+                    modal.destroy();
+                });
+
+                modal.getRoot().on(DataPrivacyEvents.approveSelectCourses, function() {
+                    new SelectedCourses(contextId, requestId);
+                });
+
+                // Show the modal!
+                modal.show();
+
+                return;
+
+            }).catch(Notification.exception);
+        });
+
+        $(ACTIONS.APPROVE_REQUEST_SELECT_COURSE).click(function(e) {
+            e.preventDefault();
+
+            var requestId = $(this).data('requestid');
+            var contextId = $(this).data('contextid');
+
+            new SelectedCourses(contextId, requestId);
+        });
+
+        $(ACTIONS.APPROVE_REQUEST).click(function(e) {
+            e.preventDefault();
+
+            var requestId = $(this).data('requestid');
+            showConfirmation(DataPrivacyEvents.approve, approveEventWsData(requestId));
+        });
+
+        $(ACTIONS.DENY_REQUEST).click(function(e) {
+            e.preventDefault();
+
+            var requestId = $(this).data('requestid');
+            showConfirmation(DataPrivacyEvents.deny, denyEventWsData(requestId));
+        });
+
+        $(ACTIONS.MARK_COMPLETE).click(function(e) {
+            e.preventDefault();
+
+            var requestId = $(this).data('requestid');
+            showConfirmation(DataPrivacyEvents.complete, completeEventWsData(requestId));
+        });
+
+        $(ACTIONS.CONFIRM_BULK_ACTION).click(function() {
+            var requestIds = [];
+            var actionEvent = '';
+            var wsdata = {};
+            var bulkActionKeys = [
+                {
+                    key: 'selectbulkaction',
+                    component: 'tool_dataprivacy'
+                },
+                {
+                    key: 'selectdatarequests',
+                    component: 'tool_dataprivacy'
+                },
+                {
+                    key: 'ok'
+                }
+            ];
+
+            var bulkaction = parseInt($('#bulk-action').val());
+
+            if (bulkaction != BULK_ACTIONS.APPROVE && bulkaction != BULK_ACTIONS.DENY) {
+                Str.get_strings(bulkActionKeys).done(function(langStrings) {
+                    Notification.alert('', langStrings[0], langStrings[2]);
+                }).fail(Notification.exception);
+
+                return;
+            }
+
+            $(".selectrequests:checked").each(function() {
+                requestIds.push($(this).val());
+            });
+
+            if (requestIds.length < 1) {
+                Str.get_strings(bulkActionKeys).done(function(langStrings) {
+                    Notification.alert('', langStrings[1], langStrings[2]);
+                }).fail(Notification.exception);
+
+                return;
+            }
+
+            switch (bulkaction) {
+                case BULK_ACTIONS.APPROVE:
+                    actionEvent = DataPrivacyEvents.bulkApprove;
+                    wsdata = bulkApproveEventWsData(requestIds);
+                    break;
+                case BULK_ACTIONS.DENY:
+                    actionEvent = DataPrivacyEvents.bulkDeny;
+                    wsdata = bulkDenyEventWsData(requestIds);
+            }
+
+            showConfirmation(actionEvent, wsdata);
+        });
+
+        $(ACTIONS.SELECT_ALL).change(function(e) {
+            e.preventDefault();
+
+            var selectAll = $(this).is(':checked');
+            $(SELECTORS.SELECT_REQUEST).prop('checked', selectAll);
+        });
+    };
+
+    /**
+     * Return the webservice data for the approve request action.
+     *
+     * @param {Number} requestId The ID of the request.
+     * @return {Object}
+     */
+    function approveEventWsData(requestId) {
+        return {
+            'wsfunction': 'tool_dataprivacy_approve_data_request',
+            'wsparams': {'requestid': requestId}
+        };
+    }
+
+    /**
+     * Return the webservice data for the bulk approve request action.
+     *
+     * @param {Array} requestIds The array of request ID's.
+     * @return {Object}
+     */
+    function bulkApproveEventWsData(requestIds) {
+        return {
+            'wsfunction': 'tool_dataprivacy_bulk_approve_data_requests',
+            'wsparams': {'requestids': requestIds}
+        };
+    }
+
+    /**
+     * Return the webservice data for the deny request action.
+     *
+     * @param {Number} requestId The ID of the request.
+     * @return {Object}
+     */
+    function denyEventWsData(requestId) {
+        return {
+            'wsfunction': 'tool_dataprivacy_deny_data_request',
+            'wsparams': {'requestid': requestId}
+        };
+    }
+
+    /**
+     * Return the webservice data for the bulk deny request action.
+     *
+     * @param {Array} requestIds The array of request ID's.
+     * @return {Object}
+     */
+    function bulkDenyEventWsData(requestIds) {
+        return {
+            'wsfunction': 'tool_dataprivacy_bulk_deny_data_requests',
+            'wsparams': {'requestids': requestIds}
+        };
+    }
+
+    /**
+     * Return the webservice data for the complete request action.
+     *
+     * @param {Number} requestId The ID of the request.
+     * @return {Object}
+     */
+    function completeEventWsData(requestId) {
+        return {
+            'wsfunction': 'tool_dataprivacy_mark_complete',
+            'wsparams': {'requestid': requestId}
+        };
+    }
+
+    /**
+     * Show the confirmation dialogue.
+     *
+     * @param {String} action The action name.
+     * @param {Object} wsdata Object containing ws data.
+     */
+    function showConfirmation(action, wsdata) {
+        var keys = [];
+
+        switch (action) {
+            case DataPrivacyEvents.approve:
+                keys = [
+                    {
+                        key: 'approverequest',
+                        component: 'tool_dataprivacy'
+                    },
+                    {
+                        key: 'confirmapproval',
+                        component: 'tool_dataprivacy'
+                    }
+                ];
+                break;
+            case DataPrivacyEvents.bulkApprove:
+                keys = [
+                    {
+                        key: 'bulkapproverequests',
+                        component: 'tool_dataprivacy'
+                    },
+                    {
+                        key: 'confirmbulkapproval',
+                        component: 'tool_dataprivacy'
+                    }
+                ];
+                break;
+            case DataPrivacyEvents.deny:
+                keys = [
+                    {
+                        key: 'denyrequest',
+                        component: 'tool_dataprivacy'
+                    },
+                    {
+                        key: 'confirmdenial',
+                        component: 'tool_dataprivacy'
+                    }
+                ];
+                break;
+            case DataPrivacyEvents.bulkDeny:
+                keys = [
+                    {
+                        key: 'bulkdenyrequests',
+                        component: 'tool_dataprivacy'
+                    },
+                    {
+                        key: 'confirmbulkdenial',
+                        component: 'tool_dataprivacy'
+                    }
+                ];
+                break;
+            case DataPrivacyEvents.complete:
+                keys = [
+                    {
+                        key: 'markcomplete',
+                        component: 'tool_dataprivacy'
+                    },
+                    {
+                        key: 'confirmcompletion',
+                        component: 'tool_dataprivacy'
+                    }
+                ];
+                break;
+        }
+
+        var modalTitle = '';
+        Str.get_strings(keys).then(function(langStrings) {
+            modalTitle = langStrings[0];
+            var confirmMessage = langStrings[1];
+            return ModalSaveCancel.create({
+                title: modalTitle,
+                body: confirmMessage,
+            });
+        }).then(function(modal) {
+            modal.setSaveButtonText(modalTitle);
+
+            // Handle save event.
+            modal.getRoot().on(ModalEvents.save, function() {
+                handleSave(wsdata.wsfunction, wsdata.wsparams);
+            });
+
+            // Handle hidden event.
+            modal.getRoot().on(ModalEvents.hidden, function() {
+                // Destroy when hidden.
+                modal.destroy();
+            });
+
+            modal.show();
+
+            return;
+
+        }).catch(Notification.exception);
+    }
+
+    /**
+     * Calls a web service function and reloads the page on success and shows a notification.
+     * Displays an error notification, otherwise.
+     *
+     * @param {String} wsfunction The web service function to call.
+     * @param {Object} params The parameters for the web service functoon.
+     */
+    function handleSave(wsfunction, params) {
+        // Confirm the request.
+        var request = {
+            methodname: wsfunction,
+            args: params
+        };
+
+        Ajax.call([request])[0].done(function(data) {
+            if (data.result) {
+                // On success, reload the page so that the data request table will be updated.
+                // TODO: Probably in the future, better to reload the table or the target data request via AJAX.
+                window.location.reload();
+            } else {
+                // Add the notification.
+                Notification.addNotification({
+                    message: data.warnings[0].message,
+                    type: 'error'
+                });
+            }
+        }).fail(Notification.exception);
+    }
+
+    return RequestActions;
+});

admin/tool/dataprivacy/amd/src/selectedcourses.js

@@ -0,0 +1,157 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Selected courses.
+ *
+ * @module     tool_dataprivacy/selectedcourses
+ * @copyright  2021 The Open University
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @since      Moodle 4.3
+ */
+
+import Ajax from 'core/ajax';
+import Notification from 'core/notification';
+import ModalSaveCancel from 'core/modal_save_cancel';
+import ModalEvents from 'core/modal_events';
+import Fragment from 'core/fragment';
+import {prefetchStrings} from 'core/prefetch';
+import {getString} from 'core/str';
+
+prefetchStrings('tool_dataprivacy', [
+    'selectcourses',
+    'approverequest',
+    'errornoselectedcourse',
+]);
+
+/**
+ * Selected Courses popup modal.
+ *
+ */
+export default class SelectedCourses {
+    /**
+     * @var {String} contextId Context ID to load the fragment.
+     * @private
+     */
+    contextId = 0;
+
+    /**
+     * @var {String} requestId ID of data export request.
+     * @private
+     */
+    requestId = 0;
+
+    /**
+     * Constructor
+     *
+     * @param {String} contextId Context ID to load the fragment.
+     * @param {String} requestId ID of data export request.
+     */
+    constructor(contextId, requestId) {
+        this.contextId = contextId;
+        this.requestId = requestId;
+        // Now create the modal.
+        ModalSaveCancel.create({
+            title: getString('selectcourses', 'tool_dataprivacy'),
+            body: this.getBody({requestid: requestId}),
+            large: true,
+            removeOnClose: true,
+            buttons: {
+                save: getString('approverequest', 'tool_dataprivacy'),
+            },
+        }).then((modal) => {
+            this.modal = modal;
+
+            return modal;
+        }).then((modal) => {
+            // We catch the modal save event, and use it to submit the form inside the modal.
+            // Triggering a form submission will give JS validation scripts a chance to check for errors.
+            modal.getRoot().on(ModalEvents.save, this.submitForm.bind(this));
+
+            // We also catch the form submit event and use it to submit the form with ajax.
+            modal.getRoot().on('submit', 'form', this.submitFormAjax.bind(this));
+            modal.show();
+            return modal;
+        }).catch(Notification.exception);
+    }
+
+    /**
+     * Get body of modal.
+     *
+     * @method getBody
+     * @param {Object} formdata
+     * @private
+     * @return {Promise}
+     */
+    getBody(formdata) {
+        const params = formdata ? {jsonformdata: JSON.stringify(formdata)} : null;
+
+        // Get the content of the modal.
+        return Fragment.loadFragment('tool_dataprivacy', 'selectcourses_form', this.contextId, params);
+    }
+
+    /**
+     * This triggers a form submission, so that any mform elements can do final tricks before the form submission is processed.
+     *
+     * @method submitForm
+     * @param {Event} e Form submission event.
+     * @private
+     */
+    submitForm(e) {
+        e.preventDefault();
+        this.modal.getRoot().find('form').submit();
+    }
+
+    /**
+     * Submit select courses form using ajax.
+     *
+     * @method submitFormAjax
+     * @private
+     * @param {Event} e Form submission event.
+     */
+    submitFormAjax(e) {
+        e.preventDefault();
+
+        // Convert all the form elements values to a serialised string.
+        let formData = this.modal.getRoot().find('form').serialize();
+
+        if (formData.indexOf('coursecontextids') === -1) {
+            const customSelect = this.modal.getRoot().find('.custom-select');
+            const invalidText = this.modal.getRoot().find('.invalid-feedback');
+            customSelect.addClass('is-invalid');
+            invalidText.attr('style', 'display: block');
+            getString('errornoselectedcourse', 'tool_dataprivacy').then(value => {
+                invalidText.empty().append(value);
+                return;
+            }).catch(Notification.exception);
+            return;
+        }
+
+        Ajax.call([{
+            methodname: 'tool_dataprivacy_submit_selected_courses_form',
+            args: {requestid: this.requestId, jsonformdata: JSON.stringify(formData)},
+        }])[0]
+        .then((data) => {
+            if (data.warnings.length > 0) {
+                this.modal.setBody(this.getBody(formData));
+            } else {
+                this.modal.destroy();
+                document.location.reload();
+            }
+            return data;
+        })
+        .catch((error) => Notification.exception(error));
+    }
+}

admin/tool/dataprivacy/categories.php

@@ -0,0 +1,42 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This page lets users manage categories.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+require_once(__DIR__ . '/../../../config.php');
+
+require_login(null, false);
+
+$url = new moodle_url("/admin/tool/dataprivacy/categories.php");
+$title = get_string('editcategories', 'tool_dataprivacy');
+
+\tool_dataprivacy\page_helper::setup($url, $title, 'dataregistry');
+
+$output = $PAGE->get_renderer('tool_dataprivacy');
+echo $output->header();
+echo $output->heading($title);
+
+$categories = \tool_dataprivacy\api::get_categories();
+$renderable = new \tool_dataprivacy\output\categories($categories);
+
+echo $output->render($renderable);
+echo $output->footer();

admin/tool/dataprivacy/classes/category.php

@@ -0,0 +1,91 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class for loading/storing data categories from the DB.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy;
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->dirroot . '/' . $CFG->admin . '/tool/dataprivacy/lib.php');
+
+/**
+ * Class for loading/storing data categories from the DB.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class category extends \core\persistent {
+
+    /**
+     * Database table.
+     */
+    const TABLE = 'tool_dataprivacy_category';
+
+    /**
+     * Return the definition of the properties of this model.
+     *
+     * @return array
+     */
+    protected static function define_properties() {
+        return array(
+            'name' => array(
+                'type' => PARAM_TEXT,
+                'description' => 'The category name.',
+            ),
+            'description' => array(
+                'type' => PARAM_RAW,
+                'description' => 'The category description.',
+                'null' => NULL_ALLOWED,
+                'default' => '',
+            ),
+            'descriptionformat' => array(
+                'choices' => array(FORMAT_HTML, FORMAT_MOODLE, FORMAT_PLAIN, FORMAT_MARKDOWN),
+                'type' => PARAM_INT,
+                'default' => FORMAT_HTML
+            ),
+        );
+    }
+
+    /**
+     * Is this category used?.
+     *
+     * @return null
+     */
+    public function is_used() {
+
+        if (\tool_dataprivacy\contextlevel::is_category_used($this->get('id')) ||
+                \tool_dataprivacy\context_instance::is_category_used($this->get('id'))) {
+            return true;
+        }
+
+        $pluginconfig = get_config('tool_dataprivacy');
+        $levels = \context_helper::get_all_levels();
+        foreach ($levels as $level => $classname) {
+
+            list($unused, $categoryvar) = \tool_dataprivacy\data_registry::var_names_from_context($classname);
+            if (!empty($pluginconfig->{$categoryvar}) && $pluginconfig->{$categoryvar} == $this->get('id')) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+}

admin/tool/dataprivacy/classes/context_instance.php

@@ -0,0 +1,116 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class for loading/storing context instances data from the DB.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy;
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Class for loading/storing context instances data from the DB.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class context_instance extends \core\persistent {
+
+    /**
+     * Database table.
+     */
+    const TABLE = 'tool_dataprivacy_ctxinstance';
+
+    /**
+     * Not set value.
+     */
+    const NOTSET = 0;
+
+    /**
+     * Inherit value.
+     */
+    const INHERIT = -1;
+
+    /**
+     * Return the definition of the properties of this model.
+     *
+     * @return array
+     */
+    protected static function define_properties() {
+        return array(
+            'contextid' => array(
+                'type' => PARAM_INT,
+                'description' => 'The context id.',
+            ),
+            'purposeid' => array(
+                'type' => PARAM_INT,
+                'description' => 'The purpose id.',
+                'null' => NULL_ALLOWED,
+            ),
+            'categoryid' => array(
+                'type' => PARAM_INT,
+                'description' => 'The category id.',
+                'null' => NULL_ALLOWED,
+            ),
+        );
+    }
+
+    /**
+     * Returns an instance by contextid.
+     *
+     * @param mixed $contextid
+     * @param mixed $exception
+     * @return null
+     */
+    public static function get_record_by_contextid($contextid, $exception = true) {
+        global $DB;
+
+        if (!$record = $DB->get_record(self::TABLE, array('contextid' => $contextid))) {
+            if (!$exception) {
+                return false;
+            } else {
+                throw new \dml_missing_record_exception(self::TABLE);
+            }
+        }
+
+        return new static(0, $record);
+    }
+
+    /**
+     * Is the provided purpose used by any context instance?
+     *
+     * @param int $purposeid
+     * @return bool
+     */
+    public static function is_purpose_used($purposeid) {
+        global $DB;
+        return $DB->record_exists(self::TABLE, array('purposeid' => $purposeid));
+    }
+
+    /**
+     * Is the provided category used by any context instance?
+     *
+     * @param int $categoryid
+     * @return bool
+     */
+    public static function is_category_used($categoryid) {
+        global $DB;
+        return $DB->record_exists(self::TABLE, array('categoryid' => $categoryid));
+    }
+}

admin/tool/dataprivacy/classes/contextlevel.php

@@ -0,0 +1,140 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class for loading/storing context level data from the DB.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy;
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Class for loading/storing context level data from the DB.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class contextlevel extends \core\persistent {
+
+    /**
+     * Database table.
+     */
+    const TABLE = 'tool_dataprivacy_ctxlevel';
+
+    /**
+     * Return the definition of the properties of this model.
+     *
+     * @return array
+     */
+    protected static function define_properties() {
+        return array(
+            'contextlevel' => array(
+                'type' => PARAM_INT,
+                'description' => 'The context level.',
+            ),
+            'purposeid' => array(
+                'type' => PARAM_INT,
+                'description' => 'The purpose id.',
+            ),
+            'categoryid' => array(
+                'type' => PARAM_INT,
+                'description' => 'The category id.',
+            ),
+        );
+    }
+
+    /**
+     * Returns an instance by contextlevel.
+     *
+     * @param mixed $contextlevel
+     * @param mixed $exception
+     * @return null
+     */
+    public static function get_record_by_contextlevel($contextlevel, $exception = true) {
+        global $DB;
+
+        $cache = \cache::make('tool_dataprivacy', 'contextlevel');
+        if ($data = $cache->get($contextlevel)) {
+            return new static(0, $data);
+        }
+
+        if (!$record = $DB->get_record(self::TABLE, array('contextlevel' => $contextlevel))) {
+            if (!$exception) {
+                return false;
+            } else {
+                throw new \dml_missing_record_exception(self::TABLE);
+            }
+        }
+
+        return new static(0, $record);
+    }
+
+    /**
+     * Is the provided purpose used by any contextlevel?
+     *
+     * @param int $purposeid
+     * @return bool
+     */
+    public static function is_purpose_used($purposeid) {
+        global $DB;
+        return $DB->record_exists(self::TABLE, array('purposeid' => $purposeid));
+    }
+
+    /**
+     * Is the provided category used by any contextlevel?
+     *
+     * @param int $categoryid
+     * @return bool
+     */
+    public static function is_category_used($categoryid) {
+        global $DB;
+        return $DB->record_exists(self::TABLE, array('categoryid' => $categoryid));
+    }
+
+    /**
+     * Adds the new record to the cache.
+     *
+     * @return null
+     */
+    protected function after_create() {
+        $cache = \cache::make('tool_dataprivacy', 'contextlevel');
+        $cache->set($this->get('contextlevel'), $this->to_record());
+    }
+
+    /**
+     * Updates the cache record.
+     *
+     * @param bool $result
+     * @return null
+     */
+    protected function after_update($result) {
+        $cache = \cache::make('tool_dataprivacy', 'contextlevel');
+        $cache->set($this->get('contextlevel'), $this->to_record());
+    }
+
+    /**
+     * Removes unnecessary stuff from db.
+     *
+     * @return null
+     */
+    protected function before_delete() {
+        $cache = \cache::make('tool_dataprivacy', 'contextlevel');
+        $cache->delete($this->get('contextlevel'));
+    }
+}

admin/tool/dataprivacy/classes/contextlist_context.php

@@ -0,0 +1,67 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+namespace tool_dataprivacy;
+
+use core\persistent;
+
+/**
+ * The contextlist_context persistent.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2021 The Open University
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @since      Moodle 4.3
+ */
+class contextlist_context extends persistent {
+
+    /** The table name this persistent object maps to. */
+    const TABLE = 'tool_dataprivacy_ctxlst_ctx';
+
+    /** This context is pending approval. */
+    const STATUS_PENDING = 0;
+
+    /** This context has been approved. */
+    const STATUS_APPROVED = 1;
+
+    /** This context has been rejected. */
+    const STATUS_REJECTED = 2;
+
+    /**
+     * Return the definition of the properties of this model.
+     *
+     * @return array
+     */
+    protected static function define_properties(): array {
+        return [
+            'contextid' => [
+                'type' => PARAM_INT
+            ],
+            'contextlistid' => [
+                'type' => PARAM_INT
+            ],
+            'status' => [
+                'choices' => [
+                    self::STATUS_PENDING,
+                    self::STATUS_APPROVED,
+                    self::STATUS_REJECTED,
+                ],
+                'default' => self::STATUS_PENDING,
+                'type' => PARAM_INT,
+            ],
+        ];
+    }
+}

admin/tool/dataprivacy/classes/data_registry.php

@@ -0,0 +1,361 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Data registry business logic methods. Mostly internal stuff.
+ *
+ * All methods should be considered part of the internal tool_dataprivacy API
+ * unless something different is specified.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy;
+
+use coding_exception;
+use core\persistent;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Data registry business logic methods. Mostly internal stuff.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class data_registry {
+    /**
+     * Returns purpose and category var names from a context class name
+     *
+     * @param string $classname The context level's class.
+     * @param string $pluginname The name of the plugin associated with the context level.
+     * @return string[]
+     */
+    public static function var_names_from_context($classname, $pluginname = '') {
+        // Unfortunately authors of privacy API did not expect that we would be
+        // on day fixing auto-loading of context classes.
+        // The best way would have been probably level numbers at the end of vars,
+        // but it is probably too late to fix it.
+        $classname = preg_replace('/^[a-z0-9_]+\\\\context\\\\/', 'context_', $classname);
+
+        $pluginname = trim($pluginname ?? '');
+        if (!empty($pluginname)) {
+            $categoryvar = $classname . '_' . $pluginname . '_category';
+            $purposevar = $classname . '_' . $pluginname . '_purpose';
+        } else {
+            $categoryvar = $classname . '_category';
+            $purposevar = $classname . '_purpose';
+        }
+        return [
+            $purposevar,
+            $categoryvar
+        ];
+    }
+
+    /**
+     * Returns the default purpose id and category id for the provided context level.
+     *
+     * The caller code is responsible of checking that $contextlevel is an integer.
+     *
+     * @param int $contextlevel The context level.
+     * @param string $pluginname The name of the plugin associated with the context level.
+     * @return int[]|false[]
+     */
+    public static function get_defaults($contextlevel, $pluginname = '') {
+        $classname = \context_helper::get_class_for_level($contextlevel);
+        list($purposevar, $categoryvar) = self::var_names_from_context($classname, $pluginname);
+
+        $purposeid = get_config('tool_dataprivacy', $purposevar);
+        $categoryid = get_config('tool_dataprivacy', $categoryvar);
+
+        if (!empty($pluginname)) {
+            list($purposevar, $categoryvar) = self::var_names_from_context($classname);
+            // If the plugin-level doesn't have a default purpose set, try the context level.
+            if ($purposeid == false) {
+                $purposeid = get_config('tool_dataprivacy', $purposevar);
+            }
+
+            // If the plugin-level doesn't have a default category set, try the context level.
+            if ($categoryid == false) {
+                $categoryid = get_config('tool_dataprivacy', $categoryvar);
+            }
+        }
+
+        if (empty($purposeid)) {
+            $purposeid = context_instance::NOTSET;
+        }
+        if (empty($categoryid)) {
+            $categoryid = context_instance::NOTSET;
+        }
+
+        return [$purposeid, $categoryid];
+    }
+
+    /**
+     * Are data registry defaults set?
+     *
+     * At least the system defaults need to be set.
+     *
+     * @return bool
+     */
+    public static function defaults_set() {
+        list($purposeid, $categoryid) = self::get_defaults(CONTEXT_SYSTEM);
+        if (empty($purposeid) || empty($categoryid)) {
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Returns all site categories that are visible to the current user.
+     *
+     * @return \core_course_category[]
+     */
+    public static function get_site_categories() {
+        global $DB;
+
+        if (method_exists('\core_course_category', 'get_all')) {
+            $categories = \core_course_category::get_all(['returnhidden' => true]);
+        } else {
+            // Fallback (to be removed once this gets integrated into master).
+            $ids = $DB->get_fieldset_select('course_categories', 'id', '');
+            $categories = \core_course_category::get_many($ids);
+        }
+
+        foreach ($categories as $key => $category) {
+            if (!$category->is_uservisible()) {
+                unset($categories[$key]);
+            }
+        }
+        return $categories;
+    }
+
+    /**
+     * Returns the roles assigned to the provided level.
+     *
+     * Important to note that it returns course-level assigned roles
+     * if the provided context level is below course.
+     *
+     * @param \context $context
+     * @return array
+     */
+    public static function get_subject_scope(\context $context) {
+
+        if ($contextcourse = $context->get_course_context(false)) {
+            // Below course level we look at module or block level roles + course-assigned roles.
+            $courseroles = get_roles_used_in_context($contextcourse, false);
+            $roles = $courseroles + get_roles_used_in_context($context, false);
+        } else {
+            // We list category + system for others (we don't work with user instances so no need to work about them).
+            $roles = get_roles_used_in_context($context);
+        }
+
+        return array_map(function($role) {
+            if ($role->name) {
+                return $role->name;
+            } else {
+                return $role->shortname;
+            }
+        }, $roles);
+    }
+
+    /**
+     * Returns the effective value given a context instance
+     *
+     * @param \context $context
+     * @param string $element 'category' or 'purpose'
+     * @param int|false $forcedvalue Use this value as if this was this context instance value.
+     * @return persistent|false It return a 'purpose' instance or a 'category' instance, depending on $element
+     */
+    public static function get_effective_context_value(\context $context, $element, $forcedvalue = false) {
+        global $DB;
+
+        if ($element !== 'purpose' && $element !== 'category') {
+            throw new coding_exception('Only \'purpose\' and \'category\' are supported.');
+        }
+        $fieldname = $element . 'id';
+
+        if (!empty($forcedvalue) && ($forcedvalue == context_instance::INHERIT)) {
+            // Do not include the current context when calculating the value.
+            // This has the effect that an inheritted value is calculated.
+            $parentcontextids = $context->get_parent_context_ids(false);
+        } else if (!empty($forcedvalue) && ($forcedvalue != context_instance::NOTSET)) {
+            return self::get_element_instance($element, $forcedvalue);
+        } else {
+            // Fetch all parent contexts, including self.
+            $parentcontextids = $context->get_parent_context_ids(true);
+        }
+        list($insql, $inparams) = $DB->get_in_or_equal($parentcontextids, SQL_PARAMS_NAMED);
+        $inparams['contextmodule'] = CONTEXT_MODULE;
+
+        if ('purpose' === $element) {
+             $elementjoin = 'LEFT JOIN {tool_dataprivacy_purpose} ele ON ctxins.purposeid = ele.id';
+             $elementfields = purpose::get_sql_fields('ele', 'ele');
+        } else {
+             $elementjoin = 'LEFT JOIN {tool_dataprivacy_category} ele ON ctxins.categoryid = ele.id';
+             $elementfields = category::get_sql_fields('ele', 'ele');
+        }
+        $contextfields = \context_helper::get_preload_record_columns_sql('ctx');
+        $fields = implode(', ', ['ctx.id', 'm.name AS modname', $contextfields, $elementfields]);
+
+        $sql = "SELECT $fields
+                  FROM {context} ctx
+             LEFT JOIN {tool_dataprivacy_ctxinstance} ctxins ON ctx.id = ctxins.contextid
+             LEFT JOIN {course_modules} cm ON ctx.contextlevel = :contextmodule AND ctx.instanceid = cm.id
+             LEFT JOIN {modules} m ON m.id = cm.module
+             {$elementjoin}
+                 WHERE ctx.id {$insql}
+              ORDER BY ctx.path DESC";
+        $contextinstances = $DB->get_records_sql($sql, $inparams);
+
+        // Check whether this context is a user context, or a child of a user context.
+        // All children of a User context share the same context and cannot be set individually.
+        foreach ($contextinstances as $record) {
+            \context_helper::preload_from_record($record);
+            $parent = \context::instance_by_id($record->id, false);
+
+            if ($parent->contextlevel == CONTEXT_USER) {
+                // Use the context level value for the user.
+                return self::get_effective_contextlevel_value(CONTEXT_USER, $element);
+            }
+        }
+
+        foreach ($contextinstances as $record) {
+            $parent = \context::instance_by_id($record->id, false);
+
+            $checkcontextlevel = false;
+            if (empty($record->eleid)) {
+                $checkcontextlevel = true;
+            }
+
+            if (!empty($forcedvalue) && context_instance::NOTSET == $forcedvalue) {
+                $checkcontextlevel = true;
+            }
+
+            if ($checkcontextlevel) {
+                // Check for a value at the contextlevel
+                $forplugin = empty($record->modname) ? '' : $record->modname;
+                list($purposeid, $categoryid) = self::get_effective_default_contextlevel_purpose_and_category(
+                        $parent->contextlevel, false, false, $forplugin);
+
+                $instancevalue = $$fieldname;
+
+                if (context_instance::NOTSET != $instancevalue && context_instance::INHERIT != $instancevalue) {
+                    // There is an actual value. Return it.
+                    return self::get_element_instance($element, $instancevalue);
+                }
+            } else {
+                $elementclass = "\\tool_dataprivacy\\{$element}";
+                $instance = new $elementclass(null, $elementclass::extract_record($record, 'ele'));
+                $instance->validate();
+
+                return $instance;
+            }
+        }
+
+        throw new coding_exception('Something went wrong, system defaults should be set and we should already have a value.');
+    }
+
+    /**
+     * Returns the effective value for a context level.
+     *
+     * Note that this is different from the effective default context level
+     * (see get_effective_default_contextlevel_purpose_and_category) as this is returning
+     * the value set in the data registry, not in the defaults page.
+     *
+     * @param int $contextlevel
+     * @param string $element 'category' or 'purpose'
+     * @return \tool_dataprivacy\purpose|false
+     */
+    public static function get_effective_contextlevel_value($contextlevel, $element) {
+        if ($element !== 'purpose' && $element !== 'category') {
+            throw new coding_exception('Only \'purpose\' and \'category\' are supported.');
+        }
+        $fieldname = $element . 'id';
+
+        if ($contextlevel != CONTEXT_SYSTEM && $contextlevel != CONTEXT_USER) {
+            throw new \coding_exception('Only context_system and context_user values can be retrieved, no other context levels ' .
+                'have a purpose or a category.');
+        }
+
+        list($purposeid, $categoryid) = self::get_effective_default_contextlevel_purpose_and_category($contextlevel);
+
+        // Note: The $$fieldname points to either $purposeid, or $categoryid.
+        if (context_instance::NOTSET != $$fieldname && context_instance::INHERIT != $$fieldname) {
+            // There is a specific value set.
+            return self::get_element_instance($element, $$fieldname);
+        }
+
+        throw new coding_exception('Something went wrong, system defaults should be set and we should already have a value.');
+    }
+
+    /**
+     * Returns the effective default purpose and category for a context level.
+     *
+     * @param int $contextlevel
+     * @param int|bool $forcedpurposevalue Use this value as if this was this context level purpose.
+     * @param int|bool $forcedcategoryvalue Use this value as if this was this context level category.
+     * @param string $component The name of the component to check.
+     * @return int[]
+     */
+    public static function get_effective_default_contextlevel_purpose_and_category($contextlevel, $forcedpurposevalue = false,
+                                                                                   $forcedcategoryvalue = false, $component = '') {
+        // Get the defaults for this context level.
+        list($purposeid, $categoryid) = self::get_defaults($contextlevel, $component);
+
+        // Honour forced values.
+        if ($forcedpurposevalue) {
+            $purposeid = $forcedpurposevalue;
+        }
+        if ($forcedcategoryvalue) {
+            $categoryid = $forcedcategoryvalue;
+        }
+
+        if ($contextlevel == CONTEXT_USER) {
+            // Only user context levels inherit from a parent context level.
+            list($parentpurposeid, $parentcategoryid) = self::get_defaults(CONTEXT_SYSTEM);
+
+            if (context_instance::INHERIT == $purposeid || context_instance::NOTSET == $purposeid) {
+                $purposeid = (int)$parentpurposeid;
+            }
+
+            if (context_instance::INHERIT == $categoryid || context_instance::NOTSET == $categoryid) {
+                $categoryid = $parentcategoryid;
+            }
+        }
+
+        return [$purposeid, $categoryid];
+    }
+
+    /**
+     * Returns an instance of the provided element.
+     *
+     * @throws \coding_exception
+     * @param string $element The element name 'purpose' or 'category'
+     * @param int $id The element id
+     * @return \core\persistent
+     */
+    private static function get_element_instance($element, $id) {
+        if ($element !== 'purpose' && $element !== 'category') {
+            throw new coding_exception('No other elements than purpose and category are allowed');
+        }
+
+        $classname = '\tool_dataprivacy\\' . $element;
+        return new $classname($id);
+    }
+}

admin/tool/dataprivacy/classes/data_request.php

@@ -0,0 +1,310 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class for loading/storing data requests from the DB.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy;
+
+defined('MOODLE_INTERNAL') || die();
+
+use lang_string;
+use core\persistent;
+
+/**
+ * Class for loading/storing data requests from the DB.
+ *
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class data_request extends persistent {
+
+    /** The table name this persistent object maps to. */
+    const TABLE = 'tool_dataprivacy_request';
+
+    /** Data request created manually. */
+    const DATAREQUEST_CREATION_MANUAL = 0;
+
+    /** Data request created automatically. */
+    const DATAREQUEST_CREATION_AUTO = 1;
+
+    /**
+     * Return the definition of the properties of this model.
+     *
+     * @return array
+     */
+    protected static function define_properties() {
+        return [
+            'type' => [
+                'choices' => [
+                    api::DATAREQUEST_TYPE_EXPORT,
+                    api::DATAREQUEST_TYPE_DELETE,
+                    api::DATAREQUEST_TYPE_OTHERS,
+                ],
+                'type' => PARAM_INT
+            ],
+            'comments' => [
+                'type' => PARAM_TEXT,
+                'message' => new lang_string('errorinvalidrequestcomments', 'tool_dataprivacy'),
+                'default' => ''
+            ],
+            'commentsformat' => [
+                'choices' => [
+                    FORMAT_HTML,
+                    FORMAT_MOODLE,
+                    FORMAT_PLAIN,
+                    FORMAT_MARKDOWN
+                ],
+                'type' => PARAM_INT,
+                'default' => FORMAT_PLAIN
+            ],
+            'userid' => [
+                'default' => function() {
+                    global $USER;
+                    return $USER->id;
+                },
+                'type' => PARAM_INT
+            ],
+            'requestedby' => [
+                'default' => 0,
+                'type' => PARAM_INT
+            ],
+            'status' => [
+                'default' => api::DATAREQUEST_STATUS_AWAITING_APPROVAL,
+                'choices' => [
+                    api::DATAREQUEST_STATUS_PENDING,
+                    api::DATAREQUEST_STATUS_PREPROCESSING,
+                    api::DATAREQUEST_STATUS_AWAITING_APPROVAL,
+                    api::DATAREQUEST_STATUS_APPROVED,
+                    api::DATAREQUEST_STATUS_PROCESSING,
+                    api::DATAREQUEST_STATUS_COMPLETE,
+                    api::DATAREQUEST_STATUS_CANCELLED,
+                    api::DATAREQUEST_STATUS_REJECTED,
+                    api::DATAREQUEST_STATUS_DOWNLOAD_READY,
+                    api::DATAREQUEST_STATUS_EXPIRED,
+                    api::DATAREQUEST_STATUS_DELETED,
+                ],
+                'type' => PARAM_INT
+            ],
+            'dpo' => [
+                'default' => 0,
+                'type' => PARAM_INT,
+                'null' => NULL_ALLOWED
+            ],
+            'dpocomment' => [
+                'default' => '',
+                'type' => PARAM_TEXT,
+                'null' => NULL_ALLOWED
+            ],
+            'dpocommentformat' => [
+                'choices' => [
+                    FORMAT_HTML,
+                    FORMAT_MOODLE,
+                    FORMAT_PLAIN,
+                    FORMAT_MARKDOWN
+                ],
+                'type' => PARAM_INT,
+                'default' => FORMAT_PLAIN
+            ],
+            'systemapproved' => [
+                'default' => false,
+                'type' => PARAM_BOOL,
+            ],
+            'creationmethod' => [
+                'default' => self::DATAREQUEST_CREATION_MANUAL,
+                'choices' => [
+                    self::DATAREQUEST_CREATION_MANUAL,
+                    self::DATAREQUEST_CREATION_AUTO
+                ],
+                'type' => PARAM_INT
+            ],
+        ];
+    }
+
+    /**
+     * Determines whether a completed data export request has expired.
+     * The response will be valid regardless of the expiry scheduled task having run.
+     *
+     * @param data_request $request the data request object whose expiry will be checked.
+     * @return bool true if the request has expired.
+     */
+    public static function is_expired(data_request $request) {
+        $result = false;
+
+        // Only export requests expire.
+        if ($request->get('type') == api::DATAREQUEST_TYPE_EXPORT) {
+            switch ($request->get('status')) {
+                // Expired requests are obviously expired.
+                case api::DATAREQUEST_STATUS_EXPIRED:
+                    $result = true;
+                    break;
+                // Complete requests are expired if the expiry time is a positive value, and has elapsed.
+                case api::DATAREQUEST_STATUS_DOWNLOAD_READY:
+                    $expiryseconds = (int) get_config('tool_dataprivacy', 'privacyrequestexpiry');
+                    if ($expiryseconds > 0 && time() >= ($request->get('timemodified') + $expiryseconds)) {
+                        $result = true;
+                    }
+                    break;
+            }
+        }
+
+        return $result;
+    }
+
+    /**
+     * Fetch completed data requests which are due to expire.
+     *
+     * @param int $userid Optional user ID to filter by.
+     *
+     * @return array Details of completed requests which are due to expire.
+     */
+    public static function get_expired_requests($userid = 0) {
+        global $DB;
+
+        // Complete requests are expired if the expiry time is a positive value, and has elapsed.
+        $expiryseconds = (int) get_config('tool_dataprivacy', 'privacyrequestexpiry');
+        if ($expiryseconds <= 0) {
+            return [];
+        }
+
+        $expirytime = strtotime("-{$expiryseconds} second");
+        $table = self::TABLE;
+        $sqlwhere = 'type = :export_type AND status = :completestatus AND timemodified <= :expirytime';
+        $params = array(
+            'export_type' => api::DATAREQUEST_TYPE_EXPORT,
+            'completestatus' => api::DATAREQUEST_STATUS_DOWNLOAD_READY,
+            'expirytime' => $expirytime,
+        );
+        $sort = 'id';
+        $fields = 'id, userid';
+
+        // Filter by user ID if specified.
+        if ($userid > 0) {
+            $sqlwhere .= ' AND (userid = :userid OR requestedby = :requestedby)';
+            $params['userid'] = $userid;
+            $params['requestedby'] = $userid;
+        }
+
+        return $DB->get_records_select_menu($table, $sqlwhere, $params, $sort, $fields, 0, 2000);
+    }
+
+    /**
+     * Expire a given set of data requests.
+     * Update request status and delete the files.
+     *
+     * @param array $expiredrequests [requestid => userid]
+     *
+     * @return void
+     */
+    public static function expire($expiredrequests) {
+        global $DB;
+
+        $ids = array_keys($expiredrequests);
+
+        if (count($ids) > 0) {
+            list($insql, $inparams) = $DB->get_in_or_equal($ids);
+            $initialparams = array(api::DATAREQUEST_STATUS_EXPIRED, time());
+            $params = array_merge($initialparams, $inparams);
+
+            $update = "UPDATE {" . self::TABLE . "}
+                          SET status = ?, timemodified = ?
+                        WHERE id $insql";
+
+            if ($DB->execute($update, $params)) {
+                $fs = get_file_storage();
+
+                foreach ($expiredrequests as $id => $userid) {
+                    $usercontext = \context_user::instance($userid);
+                    $fs->delete_area_files($usercontext->id, 'tool_dataprivacy', 'export', $id);
+                }
+            }
+        }
+    }
+
+    /**
+     * Whether this request is in a state appropriate for reset/resubmission.
+     *
+     * Note: This does not check whether any other completed requests exist for this user.
+     *
+     * @return  bool
+     */
+    public function is_resettable(): bool {
+        if (api::DATAREQUEST_TYPE_OTHERS == $this->get('type')) {
+            // It is not possible to reset 'other' reqeusts.
+            return false;
+        }
+
+        $resettable = [
+            api::DATAREQUEST_STATUS_APPROVED => true,
+            api::DATAREQUEST_STATUS_REJECTED => true,
+        ];
+
+        return isset($resettable[$this->get('status')]);
+    }
+
+    /**
+     * Whether this request is 'active'.
+     *
+     * @return  bool
+     */
+    public function is_active(): bool {
+        $active = [
+            api::DATAREQUEST_STATUS_APPROVED => true,
+        ];
+
+        return isset($active[$this->get('status')]);
+    }
+
+    /**
+     * Reject this request and resubmit it as a fresh request.
+     *
+     * Note: This does not check whether any other completed requests exist for this user.
+     *
+     * @return  self
+     */
+    public function resubmit_request(): data_request {
+        if ($this->is_active()) {
+            $this->set('status', api::DATAREQUEST_STATUS_REJECTED)->save();
+        }
+
+        if (!$this->is_resettable()) {
+            throw new \moodle_exception('cannotreset', 'tool_dataprivacy');
+        }
+
+        $currentdata = $this->to_record();
+        unset($currentdata->id);
+
+        // Clone the original request, but do not notify.
+        $clone = api::create_data_request(
+                $this->get('userid'),
+                $this->get('type'),
+                $this->get('comments'),
+                $this->get('creationmethod'),
+                false
+            );
+        $clone->set('comments', $this->get('comments'));
+        $clone->set('dpo', $this->get('dpo'));
+        $clone->set('requestedby', $this->get('requestedby'));
+        $clone->save();
+
+        return $clone;
+    }
+}

admin/tool/dataprivacy/classes/dataprivacy_contextlist.php

@@ -0,0 +1,57 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+namespace tool_dataprivacy;
+
+use core\persistent;
+
+/**
+ * The dataprivacy_contextlist persistent.
+ *
+ * @package   tool_dataprivacy
+ * @copyright 2021 The Open University
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @since     Moodle 4.3
+ */
+class dataprivacy_contextlist extends persistent {
+
+    /** The table name this persistent object maps to. */
+    const TABLE = 'tool_dataprivacy_contextlist';
+
+    /**
+     * Return the definition of the properties of this model.
+     *
+     * @return array
+     */
+    protected static function define_properties(): array {
+        return [
+            'component' => [
+                'type' => PARAM_TEXT,
+            ],
+        ];
+    }
+
+    /**
+     * Create a new contextlist persistent from an instance of \core_privacy\local\request\contextlist.
+     *
+     * @param \core_privacy\local\request\contextlist $contextlist the core privacy contextlist.
+     * @return dataprivacy_contextlist a dataprivacy_contextlist persistent.
+     */
+    public static function from_contextlist(\core_privacy\local\request\contextlist $contextlist): dataprivacy_contextlist {
+        $contextlistpersistent = new dataprivacy_contextlist();
+        return $contextlistpersistent->set('component', $contextlist->get_component());
+    }
+}

admin/tool/dataprivacy/classes/event/user_deleted_observer.php

@@ -0,0 +1,63 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Event observers supported by this module.
+ *
+ * @package    tool_dataprivacy
+ * @copyright   2018 Mihail Geshoski <mihail@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy\event;
+
+use \tool_dataprivacy\api;
+use \tool_dataprivacy\data_request;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Event observers supported by this module.
+ *
+ * @package    tool_dataprivacy
+ * @copyright   2018 Mihail Geshoski <mihail@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class user_deleted_observer {
+
+    /**
+     * Create user data deletion request when the user is deleted.
+     *
+     * @param \core\event\user_deleted $event
+     */
+    public static function create_delete_data_request(\core\event\user_deleted $event) {
+        // Automatic creation of deletion requests must be enabled.
+        if (get_config('tool_dataprivacy', 'automaticdeletionrequests')) {
+            $requesttypes = [api::DATAREQUEST_TYPE_DELETE];
+            $requeststatuses = [api::DATAREQUEST_STATUS_COMPLETE, api::DATAREQUEST_STATUS_DELETED];
+
+            $hasongoingdeleterequests = api::has_ongoing_request($event->objectid, $requesttypes[0]);
+            $hascompleteddeleterequest = (api::get_data_requests_count($event->objectid, $requeststatuses,
+                    $requesttypes) > 0) ? true : false;
+
+            if (!$hasongoingdeleterequests && !$hascompleteddeleterequest) {
+                api::create_data_request($event->objectid, $requesttypes[0],
+                        get_string('datarequestcreatedupondelete', 'tool_dataprivacy'),
+                        data_request::DATAREQUEST_CREATION_AUTO);
+            }
+        }
+    }
+}

admin/tool/dataprivacy/classes/expired_context.php

@@ -0,0 +1,378 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class that represents an expired context.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy;
+use dml_exception;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Class that represents an expired context.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class expired_context extends \core\persistent {
+
+    /**
+     * Database table.
+     */
+    const TABLE = 'tool_dataprivacy_ctxexpired';
+
+    /**
+     * Expired contexts with no delete action scheduled.
+     */
+    const STATUS_EXPIRED = 0;
+
+    /**
+     * Expired contexts approved for deletion.
+     */
+    const STATUS_APPROVED = 1;
+
+    /**
+     * Already processed expired contexts.
+     */
+    const STATUS_CLEANED = 2;
+
+    /**
+     * Return the definition of the properties of this model.
+     *
+     * @return array
+     */
+    protected static function define_properties() {
+        return [
+            'contextid' => [
+                'type' => PARAM_INT,
+                'description' => 'The context id.',
+            ],
+            'defaultexpired' => [
+                'type' => PARAM_INT,
+                'description' => 'Whether to default retention period for the purpose has been reached',
+                'default' => 1,
+            ],
+            'expiredroles' => [
+                'type' => PARAM_TEXT,
+                'description' => 'This list of roles to include during deletion',
+                'default'  => '',
+            ],
+            'unexpiredroles' => [
+                'type' => PARAM_TEXT,
+                'description' => 'This list of roles to exclude during deletion',
+                'default'  => '',
+            ],
+            'status' => [
+                'choices' => [
+                    self::STATUS_EXPIRED,
+                    self::STATUS_APPROVED,
+                    self::STATUS_CLEANED,
+                ],
+                'type' => PARAM_INT,
+                'description' => 'The deletion status of the context.',
+            ],
+        ];
+    }
+
+    /**
+     * Returns expired_contexts instances that match the provided level and status.
+     *
+     * @param int $contextlevel The context level filter criterion.
+     * @param bool $status The expired context record's status.
+     * @param string $sort The sort column. Must match the column name in {tool_dataprivacy_ctxexpired} table
+     * @param int $offset The query offset.
+     * @param int $limit The query limit.
+     * @return expired_context[]
+     * @throws dml_exception
+     */
+    public static function get_records_by_contextlevel($contextlevel = null, $status = false, $sort = 'timecreated',
+                                                       $offset = 0, $limit = 0) {
+        global $DB;
+
+        $sql = "SELECT expiredctx.*
+                  FROM {" . self::TABLE . "} expiredctx
+                  JOIN {context} ctx
+                    ON ctx.id = expiredctx.contextid";
+        $params = [];
+        $conditions = [];
+
+        if (!empty($contextlevel)) {
+            $conditions[] = "ctx.contextlevel = :contextlevel";
+            $params['contextlevel'] = intval($contextlevel);
+        }
+
+        if ($status !== false) {
+            $conditions[] = "expiredctx.status = :status";
+            $params['status'] = intval($status);
+        }
+
+        if (!empty($conditions)) {
+            $sql .= ' WHERE ' . implode(' AND ', $conditions);
+        }
+        $sql .= " ORDER BY expiredctx.{$sort}";
+
+        $records = $DB->get_records_sql($sql, $params, $offset, $limit);
+
+        // We return class instances.
+        $instances = array();
+        foreach ($records as $key => $record) {
+            $instances[$key] = new static(0, $record);
+        }
+
+        return $instances;
+    }
+
+    /**
+     * Returns the number of expired_contexts instances that match the provided level and status.
+     *
+     * @param int $contextlevel
+     * @param bool $status
+     * @return int
+     * @throws dml_exception
+     */
+    public static function get_record_count_by_contextlevel($contextlevel = null, $status = false) {
+        global $DB;
+
+        $sql = "SELECT COUNT(1)
+                  FROM {" . self::TABLE . "} expiredctx
+                  JOIN {context} ctx
+                    ON ctx.id = expiredctx.contextid";
+
+        $conditions = [];
+        $params = [];
+
+        if (!empty($contextlevel)) {
+            $conditions[] = "ctx.contextlevel = :contextlevel";
+            $params['contextlevel'] = intval($contextlevel);
+        }
+
+        if ($status !== false) {
+            $sql .= " AND expiredctx.status = :status";
+            $params['status'] = intval($status);
+        }
+        if (!empty($conditions)) {
+            $sql .= ' WHERE ' . implode(' AND ', $conditions);
+        }
+
+        return $DB->count_records_sql($sql, $params);
+    }
+
+    /**
+     * Set the list of role IDs for either expiredroles, or unexpiredroles.
+     *
+     * @param   string  $field
+     * @param   int[]   $roleids
+     * @return  expired_context
+     */
+    protected function set_roleids_for(string $field, array $roleids): expired_context {
+        $roledata = json_encode($roleids);
+
+        $this->raw_set($field, $roledata);
+
+        return $this;
+    }
+
+    /**
+     * Get the list of role IDs for either expiredroles, or unexpiredroles.
+     *
+     * @param   string  $field
+     * @return  int[]
+     */
+    protected function get_roleids_for(string $field) {
+        $value = $this->raw_get($field);
+        if (empty($value)) {
+            return [];
+        }
+
+        return json_decode($value);
+    }
+
+    /**
+     * Set the list of unexpired role IDs.
+     *
+     * @param   int[]   $roleids
+     * @return  expired_context
+     */
+    protected function set_unexpiredroles(array $roleids): expired_context {
+        $this->set_roleids_for('unexpiredroles', $roleids);
+
+        return $this;
+    }
+
+    /**
+     * Add a set of role IDs to the list of expired role IDs.
+     *
+     * @param   int[]   $roleids
+     * @return  expired_context
+     */
+    public function add_expiredroles(array $roleids): expired_context {
+        $existing = $this->get('expiredroles');
+        $newvalue = array_merge($existing, $roleids);
+
+        $this->set('expiredroles', $newvalue);
+
+        return $this;
+    }
+
+    /**
+     * Add a set of role IDs to the list of unexpired role IDs.
+     *
+     * @param   int[]   $roleids
+     * @return  unexpired_context
+     */
+    public function add_unexpiredroles(array $roleids): expired_context {
+        $existing = $this->get('unexpiredroles');
+        $newvalue = array_merge($existing, $roleids);
+
+        $this->set('unexpiredroles', $newvalue);
+
+        return $this;
+    }
+
+    /**
+     * Set the list of expired role IDs.
+     *
+     * @param   int[]   $roleids
+     * @return  expired_context
+     */
+    protected function set_expiredroles(array $roleids): expired_context {
+        $this->set_roleids_for('expiredroles', $roleids);
+
+        return $this;
+    }
+
+    /**
+     * Get the list of expired role IDs.
+     *
+     * @return  int[]
+     */
+    protected function get_expiredroles() {
+        return $this->get_roleids_for('expiredroles');
+    }
+
+    /**
+     * Get the list of unexpired role IDs.
+     *
+     * @return  int[]
+     */
+    protected function get_unexpiredroles() {
+        return $this->get_roleids_for('unexpiredroles');
+    }
+
+    /**
+     * Create a new expired_context based on the context, and expiry_info object.
+     *
+     * @param   \context        $context
+     * @param   expiry_info     $info
+     * @param   boolean         $save
+     * @return  expired_context
+     */
+    public static function create_from_expiry_info(\context $context, expiry_info $info, bool $save = true): expired_context {
+        $record = (object) [
+            'contextid' => $context->id,
+            'status' => self::STATUS_EXPIRED,
+            'defaultexpired' => (int) $info->is_default_expired(),
+        ];
+
+        $expiredcontext = new static(0, $record);
+        $expiredcontext->set('expiredroles', $info->get_expired_roles());
+        $expiredcontext->set('unexpiredroles', $info->get_unexpired_roles());
+
+        if ($save) {
+            $expiredcontext->save();
+        }
+
+        return $expiredcontext;
+    }
+
+    /**
+     * Update the expired_context from an expiry_info object which relates to this context.
+     *
+     * @param   expiry_info     $info
+     * @return  $this
+     */
+    public function update_from_expiry_info(expiry_info $info): expired_context {
+        $save = false;
+
+        // Compare the expiredroles.
+        $thisexpired = $this->get('expiredroles');
+        $infoexpired = $info->get_expired_roles();
+
+        sort($thisexpired);
+        sort($infoexpired);
+        if ($infoexpired != $thisexpired) {
+            $this->set('expiredroles', $infoexpired);
+            $save = true;
+        }
+
+        // Compare the unexpiredroles.
+        $thisunexpired = $this->get('unexpiredroles');
+        $infounexpired = $info->get_unexpired_roles();
+
+        sort($thisunexpired);
+        sort($infounexpired);
+        if ($infounexpired != $thisunexpired) {
+            $this->set('unexpiredroles', $infounexpired);
+            $save = true;
+        }
+
+        if (empty($this->get('defaultexpired')) == $info->is_default_expired()) {
+            $this->set('defaultexpired', (int) $info->is_default_expired());
+            $save = true;
+        }
+
+        if ($save) {
+            $this->set('status', self::STATUS_EXPIRED);
+            $this->save();
+        }
+
+        return $this;
+
+    }
+
+    /**
+     * Check whether this expired_context record is in a state ready for deletion to actually take place.
+     *
+     * @return  bool
+     */
+    public function can_process_deletion(): bool {
+        return ($this->get('status') == self::STATUS_APPROVED);
+    }
+
+    /**
+     * Check whether this expired_context record has already been cleaned.
+     *
+     * @return  bool
+     */
+    public function is_complete(): bool {
+        return ($this->get('status') == self::STATUS_CLEANED);
+    }
+
+    /**
+     * Whether this context has 'fully' expired.
+     * That is to say that the default retention period has been reached, and that there are no unexpired roles.
+     *
+     * @return  bool
+     */
+    public function is_fully_expired(): bool {
+        return $this->get('defaultexpired') && empty($this->get('unexpiredroles'));
+    }
+}

admin/tool/dataprivacy/classes/expiry_info.php

@@ -0,0 +1,207 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Expiry Data.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Andrew Nicols <andrew@nicols.co.uk>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy;
+
+use core_privacy\manager;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Expiry Data.
+ *
+ * @copyright  2018 Andrew Nicols <andrew@nicols.co.uk>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class expiry_info {
+
+    /** @var bool Whether this context is fully expired */
+    protected $fullyexpired = false;
+
+    /** @var bool Whether the default expiry value of this purpose has been reached */
+    protected $defaultexpiryreached = false;
+
+    /** @var bool Whether the default purpose is protected */
+    protected $defaultprotected = false;
+
+    /** @var int[] List of expires roles */
+    protected $expired = [];
+
+    /** @var int[] List of unexpires roles */
+    protected $unexpired = [];
+
+    /** @var int[] List of unexpired roles which are also protected */
+    protected $protectedroles = [];
+
+    /**
+     * Constructor for the expiry_info class.
+     *
+     * @param   bool    $default Whether the default expiry period for this context has been reached.
+     * @param   bool    $defaultprotected Whether the default expiry is protected.
+     * @param   int[]   $expired A list of roles in this context which have explicitly expired.
+     * @param   int[]   $unexpired A list of roles in this context which have not yet expired.
+     * @param   int[]   $protectedroles A list of unexpired roles in this context which are protected.
+     */
+    public function __construct(bool $default, bool $defaultprotected, array $expired, array $unexpired, array $protectedroles) {
+        $this->defaultexpiryreached = $default;
+        $this->defaultprotected = $defaultprotected;
+        $this->expired = $expired;
+        $this->unexpired = $unexpired;
+        $this->protectedroles = $protectedroles;
+    }
+
+    /**
+     * Whether this context has 'fully' expired.
+     * That is to say that the default retention period has been reached, and that there are no unexpired roles.
+     *
+     * @return  bool
+     */
+    public function is_fully_expired(): bool {
+        return $this->defaultexpiryreached && empty($this->unexpired);
+    }
+
+    /**
+     * Whether any part of this context has expired.
+     *
+     * @return  bool
+     */
+    public function is_any_expired(): bool {
+        if ($this->is_fully_expired()) {
+            return true;
+        }
+
+        if (!empty($this->get_expired_roles())) {
+            return true;
+        }
+
+        if ($this->is_default_expired()) {
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * Get the list of explicitly expired role IDs.
+     * Note: This does not list roles which have been expired via the default retention policy being reached.
+     *
+     * @return  int[]
+     */
+    public function get_expired_roles(): array {
+        if ($this->is_default_expired()) {
+            return [];
+        }
+        return $this->expired;
+    }
+
+    /**
+     * Check whether the specified role is explicitly expired.
+     * Note: This does not list roles which have been expired via the default retention policy being reached.
+     *
+     * @param   int $roleid
+     * @return  bool
+     */
+    public function is_role_expired(int $roleid): bool {
+        return false !== array_search($roleid, $this->expired);
+    }
+
+    /**
+     * Whether the default retention policy has been reached.
+     *
+     * @return  bool
+     */
+    public function is_default_expired(): bool {
+        return $this->defaultexpiryreached;
+    }
+
+    /**
+     * Whether the default purpose is protected.
+     *
+     * @return  bool
+     */
+    public function is_default_protected(): bool {
+        return $this->defaultprotected;
+    }
+
+    /**
+     * Get the list of unexpired role IDs.
+     *
+     * @return  int[]
+     */
+    public function get_unexpired_roles(): array {
+        return $this->unexpired;
+    }
+
+    /**
+     * Get the list of unexpired protected roles.
+     *
+     * @return  int[]
+     */
+    public function get_unexpired_protected_roles(): array {
+        return array_keys(array_filter($this->protectedroles));
+    }
+
+    /**
+     * Get a list of all overridden roles which are unprotected.
+     * @return  int[]
+     */
+    public function get_unprotected_overridden_roles(): array {
+        $allroles = array_merge($this->expired, $this->unexpired);
+
+        return array_diff($allroles, $this->protectedroles);
+    }
+
+    /**
+     * Merge this expiry_info object with another belonging to a child context in order to set the 'safest' heritage.
+     *
+     * It is not possible to delete any part of a context that is not deleted by a parent.
+     * So if a course's retention policy has been reached, then only parts where the children have also expired can be
+     * deleted.
+     *
+     * @param   expiry_info $child The child record to merge with.
+     * @return  $this
+     */
+    public function merge_with_child(expiry_info $child): expiry_info {
+        if ($child->is_fully_expired()) {
+            return $this;
+        }
+
+        // If the child is not fully expired, then none of the parents can be either.
+        $this->fullyexpired = false;
+
+        // Remove any role in this node which is not expired in the child.
+        foreach ($this->expired as $key => $roleid) {
+            if (!$child->is_role_expired($roleid)) {
+                unset($this->expired[$key]);
+            }
+        }
+
+        array_merge($this->unexpired, $child->get_unexpired_roles());
+
+        if (!$child->is_default_expired()) {
+            $this->defaultexpiryreached = false;
+        }
+
+        return $this;
+    }
+}

admin/tool/dataprivacy/classes/external/category_exporter.php

@@ -0,0 +1,79 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class for exporting data category.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\external;
+defined('MOODLE_INTERNAL') || die();
+
+use core\external\persistent_exporter;
+use tool_dataprivacy\category;
+use tool_dataprivacy\context_instance;
+
+/**
+ * Class for exporting field data.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class category_exporter extends persistent_exporter {
+
+    /**
+     * Defines the persistent class.
+     *
+     * @return string
+     */
+    protected static function define_class() {
+        return \tool_dataprivacy\category::class;
+    }
+
+    /**
+     * Returns a list of objects that are related.
+     *
+     * @return array
+     */
+    protected static function define_related() {
+        return array(
+            'context' => 'context',
+        );
+    }
+
+    /**
+     * Utility function that fetches a category name from the given ID.
+     *
+     * @param int $categoryid The category ID. Could be INHERIT (false, -1), NOT_SET (0), or the actual ID.
+     * @return string The purpose name.
+     */
+    public static function get_name($categoryid) {
+        global $PAGE;
+        if ($categoryid === false || $categoryid == context_instance::INHERIT) {
+            return get_string('inherit', 'tool_dataprivacy');
+        } else if ($categoryid == context_instance::NOTSET) {
+            return get_string('notset', 'tool_dataprivacy');
+        } else {
+            $purpose = new category($categoryid);
+            $output = $PAGE->get_renderer('tool_dataprivacy');
+            $exporter = new self($purpose, ['context' => \context_system::instance()]);
+            $data = $exporter->export($output);
+            return $data->name;
+        }
+    }
+}

admin/tool/dataprivacy/classes/external/context_instance_exporter.php

@@ -0,0 +1,45 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class for exporting context instance.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\external;
+defined('MOODLE_INTERNAL') || die();
+
+use core\external\persistent_exporter;
+
+/**
+ * Class for exporting context instance.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class context_instance_exporter extends persistent_exporter {
+
+    /**
+     * Defines the persistent class.
+     *
+     * @return string
+     */
+    protected static function define_class() {
+        return \tool_dataprivacy\context_instance::class;
+    }
+}

admin/tool/dataprivacy/classes/external/create_data_request.php

@@ -0,0 +1,121 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+namespace tool_dataprivacy\external;
+
+use core_external\external_api;
+use core_external\external_function_parameters;
+use core_external\external_single_structure;
+use core_external\external_value;
+use core_external\external_warnings;
+use tool_dataprivacy\api;
+use core_user;
+use moodle_exception;
+
+/**
+ * External function for creating a data request.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2023 Juan Leyva <juan@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @since      Moodle 4.4
+ */
+class create_data_request extends external_api {
+
+    /**
+     * Webservice parameters.
+     *
+     * @return external_function_parameters
+     */
+    public static function execute_parameters(): external_function_parameters {
+        return new external_function_parameters(
+            [
+                'type' => new external_value(PARAM_INT, 'The type of data request to create. 1 for export, 2 for data deletion.'),
+                'comments' => new external_value(PARAM_RAW, 'Comments for the data request.', VALUE_DEFAULT, ''),
+                'foruserid' => new external_value(PARAM_INT, 'The id of the user to create the data request for. Empty for current user.',
+                    VALUE_DEFAULT, 0),
+            ]
+        );
+    }
+
+    /**
+     * Create a data request.
+     *
+     * @param int $type The type of data request to create.
+     * @param string $comments Comments for the data request.
+     * @param int $foruserid The id of the user to create the data request for.
+     * @return array containing the id of the request created and warnings.
+     * @throws moodle_exception
+     */
+    public static function execute(int $type, string $comments = '', int $foruserid = 0): array {
+        global $USER;
+
+        $params = self::validate_parameters(self::execute_parameters(), [
+            'type' => $type,
+            'comments' => $comments,
+            'foruserid' => $foruserid,
+        ]);
+
+        $system = \context_system::instance();
+        external_api::validate_context($system);
+
+        $cancontactdpo = api::can_contact_dpo();
+        $canmanage = false;
+
+        if (empty($params['foruserid']) || $params['foruserid'] == $USER->id) {
+            $user = $USER;
+        } else {
+            $user = core_user::get_user($params['foruserid'], '*', MUST_EXIST);
+            core_user::require_active_user($user);
+
+            if (!$canmanage = api::can_manage_data_requests($user->id)) {
+                api::require_can_create_data_request_for_user($user->id);
+            }
+        }
+
+        if (!$canmanage && !$cancontactdpo) {
+            throw new moodle_exception('contactdpoviaprivacypolicy', 'tool_dataprivacy');
+        }
+
+        // Validate the data.
+        $validationerrors = api::validate_create_data_request((object) ['userid' => $user->id, 'type' => $params['type']]);
+        if (!empty($validationerrors)) {
+            $error = array_key_first($validationerrors);
+            throw new moodle_exception($error, 'tool_dataprivacy');
+        }
+        // All clear now, create the request.
+        $datarequest = api::create_data_request($user->id, $params['type'], $params['comments']);
+
+        return [
+            'datarequestid' => $datarequest->get('id'),
+            'warnings' => [],
+        ];
+    }
+
+    /**
+     * Webservice returns.
+     *
+     * @return external_single_structure
+     */
+    public static function execute_returns(): external_single_structure {
+        return new external_single_structure(
+            [
+                'datarequestid' => new external_value(PARAM_INT, 'The id of the created data request.'),
+                'warnings' => new external_warnings(),
+            ]
+        );
+    }
+}

admin/tool/dataprivacy/classes/external/data_request_exporter.php

@@ -0,0 +1,219 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class for exporting user evidence with all competencies.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\external;
+defined('MOODLE_INTERNAL') || die();
+
+use core\external\persistent_exporter;
+use core_user;
+use core_user\external\user_summary_exporter;
+use renderer_base;
+use tool_dataprivacy\api;
+use tool_dataprivacy\data_request;
+use tool_dataprivacy\local\helper;
+
+/**
+ * Class for exporting user evidence with all competencies.
+ *
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class data_request_exporter extends persistent_exporter {
+
+    /**
+     * Class definition.
+     *
+     * @return string
+     */
+    protected static function define_class() {
+        return data_request::class;
+    }
+
+    /**
+     * Related objects definition.
+     *
+     * @return array
+     */
+    protected static function define_related() {
+        return [
+            'context' => 'context',
+        ];
+    }
+
+    /**
+     * Other properties definition.
+     *
+     * @return array
+     */
+    protected static function define_other_properties() {
+        return [
+            'foruser' => [
+                'type' => user_summary_exporter::read_properties_definition(),
+            ],
+            'requestedbyuser' => [
+                'type' => user_summary_exporter::read_properties_definition(),
+                'optional' => true
+            ],
+            'dpouser' => [
+                'type' => user_summary_exporter::read_properties_definition(),
+                'optional' => true
+            ],
+            'messagehtml' => [
+                'type' => PARAM_RAW,
+                'optional' => true
+            ],
+            'typename' => [
+                'type' => PARAM_TEXT,
+            ],
+            'typenameshort' => [
+                'type' => PARAM_TEXT,
+            ],
+            'statuslabel' => [
+                'type' => PARAM_TEXT,
+            ],
+            'statuslabelclass' => [
+                'type' => PARAM_TEXT,
+            ],
+            'canreview' => [
+                'type' => PARAM_BOOL,
+                'optional' => true,
+                'default' => false
+            ],
+            'approvedeny' => [
+                'type' => PARAM_BOOL,
+                'optional' => true,
+                'default' => false
+            ],
+            'allowfiltering' => [
+                'type' => PARAM_BOOL,
+                'optional' => true,
+                'default' => false,
+            ],
+            'canmarkcomplete' => [
+                'type' => PARAM_BOOL,
+                'optional' => true,
+                'default' => false
+            ],
+            'downloadlink' => [
+                'type' => PARAM_URL,
+                'optional' => true,
+            ],
+        ];
+    }
+
+    /**
+     * Assign values to the defined other properties.
+     *
+     * @param renderer_base $output The output renderer object.
+     * @return array
+     * @throws coding_exception
+     * @throws dml_exception
+     * @throws moodle_exception
+     */
+    protected function get_other_values(renderer_base $output) {
+        $values = [];
+
+        $foruserid = $this->persistent->get('userid');
+        $user = core_user::get_user($foruserid, '*', MUST_EXIST);
+        $userexporter = new user_summary_exporter($user);
+        $values['foruser'] = $userexporter->export($output);
+
+        $requestedbyid = $this->persistent->get('requestedby');
+        if ($requestedbyid != $foruserid) {
+            $user = core_user::get_user($requestedbyid, '*', MUST_EXIST);
+            $userexporter = new user_summary_exporter($user);
+            $values['requestedbyuser'] = $userexporter->export($output);
+        } else {
+            $values['requestedbyuser'] = $values['foruser'];
+        }
+
+        if (!empty($this->persistent->get('dpo'))) {
+            $dpoid = $this->persistent->get('dpo');
+            $user = core_user::get_user($dpoid, '*', MUST_EXIST);
+            $userexporter = new user_summary_exporter($user);
+            $values['dpouser'] = $userexporter->export($output);
+        }
+
+        $values['messagehtml'] = text_to_html($this->persistent->get('comments'));
+
+        $requesttype = $this->persistent->get('type');
+        $values['typename'] = helper::get_request_type_string($requesttype);
+        $values['typenameshort'] = helper::get_shortened_request_type_string($requesttype);
+
+        $values['canreview'] = false;
+        $values['approvedeny'] = false;
+        $values['allowfiltering'] = get_config('tool_dataprivacy', 'allowfiltering');
+        $values['statuslabel'] = helper::get_request_status_string($this->persistent->get('status'));
+
+        switch ($this->persistent->get('status')) {
+            case api::DATAREQUEST_STATUS_PENDING:
+            case api::DATAREQUEST_STATUS_PREPROCESSING:
+                $values['statuslabelclass'] = 'bg-info text-white';
+                // Request can be manually completed for general enquiry requests.
+                $values['canmarkcomplete'] = $requesttype == api::DATAREQUEST_TYPE_OTHERS;
+                break;
+            case api::DATAREQUEST_STATUS_AWAITING_APPROVAL:
+                $values['statuslabelclass'] = 'bg-info text-white';
+                // DPO can review the request once it's ready.
+                $values['canreview'] = true;
+                // Whether the DPO can approve or deny the request.
+                $values['approvedeny'] = in_array($requesttype, [api::DATAREQUEST_TYPE_EXPORT, api::DATAREQUEST_TYPE_DELETE]);
+                // If the request's type is delete, check if user have permission to approve/deny it.
+                if ($requesttype == api::DATAREQUEST_TYPE_DELETE) {
+                    $values['approvedeny'] = api::can_create_data_deletion_request_for_other();
+                }
+                break;
+            case api::DATAREQUEST_STATUS_APPROVED:
+                $values['statuslabelclass'] = 'bg-info text-white';
+                break;
+            case api::DATAREQUEST_STATUS_PROCESSING:
+                $values['statuslabelclass'] = 'bg-info text-white';
+                break;
+            case api::DATAREQUEST_STATUS_COMPLETE:
+            case api::DATAREQUEST_STATUS_DOWNLOAD_READY:
+            case api::DATAREQUEST_STATUS_DELETED:
+                $values['statuslabelclass'] = 'bg-success text-white';
+                break;
+            case api::DATAREQUEST_STATUS_CANCELLED:
+                $values['statuslabelclass'] = 'bg-warning text-dark';
+                break;
+            case api::DATAREQUEST_STATUS_REJECTED:
+                $values['statuslabelclass'] = 'bg-danger text-white';
+                break;
+            case api::DATAREQUEST_STATUS_EXPIRED:
+                $values['statuslabelclass'] = 'bg-secondary text-dark';
+                break;
+        }
+
+        if ($this->persistent->get('status') == api::DATAREQUEST_STATUS_DOWNLOAD_READY) {
+            $usercontext = \context_user::instance($foruserid, IGNORE_MISSING);
+            // If user has permission to view download link, show relevant action item.
+            if ($usercontext && api::can_download_data_request_for_user($foruserid, $requestedbyid)) {
+                $downloadlink = api::get_download_link($usercontext, $this->persistent->get('id'))->url;
+                $values['downloadlink'] = $downloadlink->out(false);
+            }
+        }
+
+        return $values;
+    }
+}

admin/tool/dataprivacy/classes/external/get_access_information.php

@@ -0,0 +1,85 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+namespace tool_dataprivacy\external;
+
+use core_external\external_api;
+use core_external\external_function_parameters;
+use core_external\external_single_structure;
+use core_external\external_value;
+use core_external\external_warnings;
+use tool_dataprivacy\api;
+
+/**
+ * External function for retrieving access (permissions) information for the privacy API.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2023 Juan Leyva <juan@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @since      Moodle 4.4
+ */
+class get_access_information extends external_api {
+
+    /**
+     * Webservice parameters.
+     *
+     * @return external_function_parameters
+     */
+    public static function execute_parameters(): external_function_parameters {
+        return new external_function_parameters([]);
+    }
+
+    /**
+     * Main method of the external function.
+     *
+     * @return array current user permissions
+     */
+    public static function execute(): array {
+        global $USER;
+
+        $system = \context_system::instance();
+        external_api::validate_context($system);
+
+        return [
+            'cancontactdpo' => api::can_contact_dpo(),
+            'canmanagedatarequests' => api::can_manage_data_requests($USER->id),
+            'cancreatedatadownloadrequest' => api::can_create_data_download_request_for_self($USER->id),
+            'cancreatedatadeletionrequest' => api::can_create_data_deletion_request_for_self($USER->id),
+            'hasongoingdatadownloadrequest' => api::has_ongoing_request($USER->id, api::DATAREQUEST_TYPE_EXPORT),
+            'hasongoingdatadeletionrequest' => api::has_ongoing_request($USER->id, api::DATAREQUEST_TYPE_DELETE),
+            'warnings' => [],
+        ];
+    }
+
+    /**
+     * Webservice returns.
+     *
+     * @return external_single_structure
+     */
+    public static function execute_returns(): external_single_structure {
+        return new external_single_structure(
+            [
+                'cancontactdpo' => new external_value(PARAM_BOOL, 'Can contact dpo.'),
+                'canmanagedatarequests' => new external_value(PARAM_BOOL, 'Can manage data requests.'),
+                'cancreatedatadownloadrequest' => new external_value(PARAM_BOOL, 'Can create data download request for self.'),
+                'cancreatedatadeletionrequest' => new external_value(PARAM_BOOL, 'Can create data deletion request for self.'),
+                'hasongoingdatadownloadrequest' => new external_value(PARAM_BOOL, 'Has ongoing data download request.'),
+                'hasongoingdatadeletionrequest' => new external_value(PARAM_BOOL, 'Has ongoing data deletion request.'),
+                'warnings' => new external_warnings(),
+            ]
+        );
+    }
+}

admin/tool/dataprivacy/classes/external/get_data_requests.php

@@ -0,0 +1,165 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+namespace tool_dataprivacy\external;
+
+use core_external\external_api;
+use core_external\external_function_parameters;
+use core_external\external_single_structure;
+use core_external\external_multiple_structure;
+use core_external\external_value;
+use core_external\external_warnings;
+use tool_dataprivacy\api;
+use core_user;
+use context_system;
+use moodle_exception;
+
+/**
+ * External function for getting data requests.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2023 Juan Leyva <juan@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @since      Moodle 4.4
+ */
+class get_data_requests extends external_api {
+
+    /**
+     * Webservice parameters.
+     *
+     * @return external_function_parameters
+     */
+    public static function execute_parameters(): external_function_parameters {
+        return new external_function_parameters(
+            [
+                'userid' => new external_value(PARAM_INT, 'The id of the user to get the data requests for. Empty for all users.',
+                    VALUE_DEFAULT, 0),
+                'statuses' => new external_multiple_structure(
+                    new external_value(PARAM_INT, 'The status of the data requests to get.'),
+                    'The statuses of the data requests to get.
+                    0 for pending 1 preprocessing, 2 awaiting approval, 3 approved,
+                    4 processed, 5 completed, 6 cancelled, 7 rejected.',
+                    VALUE_DEFAULT,
+                    []
+                ),
+                'types' => new external_multiple_structure(
+                    new external_value(PARAM_INT, 'The type of the data requests to get.'),
+                    'The types of the data requests to get. 1 for export, 2 for data deletion.',
+                    VALUE_DEFAULT,
+                    []
+                ),
+                'creationmethods' => new external_multiple_structure(
+                    new external_value(PARAM_INT, 'The creation method of the data requests to get.'),
+                    'The creation methods of the data requests to get. 0 for manual, 1 for automatic.',
+                    VALUE_DEFAULT,
+                    []
+                ),
+                'sort' => new external_value(PARAM_NOTAGS, 'The field to sort the data requests by.',
+                    VALUE_DEFAULT, ''),
+                'limitfrom' => new external_value(PARAM_INT, 'The number to start getting the data requests from.',
+                    VALUE_DEFAULT, 0),
+                'limitnum' => new external_value(PARAM_INT, 'The number of data requests to get.',
+                    VALUE_DEFAULT, 0),
+            ]
+        );
+    }
+
+
+    /**
+     * Get data requests.
+     *
+     * @param int $userid The user id.
+     * @param array $statuses The status filters.
+     * @param array $types The request type filters.
+     * @param array $creationmethods The request creation method filters.
+     * @param string $sort The order by clause.
+     * @param int $limitfrom Amount of records to skip.
+     * @param int $limitnum Amount of records to fetch.
+     * @throws moodle_exception
+     * @return array containing the data requests and warnings.
+     */
+    public static function execute($userid = 0, $statuses = [], $types = [], $creationmethods = [],
+            $sort = '', $limitfrom = 0, $limitnum = 0): array {
+
+        global $USER, $PAGE;
+
+        $params = self::validate_parameters(self::execute_parameters(), [
+            'userid' => $userid,
+            'statuses' => $statuses,
+            'types' => $types,
+            'creationmethods' => $creationmethods,
+            'sort' => $sort,
+            'limitfrom' => $limitfrom,
+            'limitnum' => $limitnum,
+        ]);
+        $systemcontext = context_system::instance();
+
+        if ($params['userid'] == $USER->id) {
+            $userid = $USER->id;
+        } else {
+            // Additional security checks when obtaining data requests for other users.
+            if (!has_capability('tool/dataprivacy:managedatarequests', $systemcontext) || !api::is_site_dpo($USER->id)) {
+                $dponamestring = implode (', ', api::get_dpo_role_names());
+                throw new moodle_exception('privacyofficeronly', 'tool_dataprivacy', '', $dponamestring);
+            }
+
+            $userid = 0;
+            if (!empty($params['userid'])) {
+                $user = core_user::get_user($params['userid'], '*', MUST_EXIST);
+                core_user::require_active_user($user);
+                $userid = $user->id;
+            }
+        }
+
+        // Ensure sort parameter is safe to use. Fallback to default value of the parameter itself.
+        $sortorderparts = explode(' ', $params['sort'], 2);
+        $sortorder = get_safe_orderby([
+            'id' => 'id',
+            'status' => 'status',
+            'timemodified' => 'timemodified',
+            'default' => '',
+        ], $sortorderparts[0], $sortorderparts[1] ?? '', false);
+
+        $userrequests = api::get_data_requests($userid, $params['statuses'], $params['types'], $params['creationmethods'],
+                $sortorder, $params['limitfrom'], $params['limitnum']);
+
+        $requests = [];
+        foreach ($userrequests as $requestpersistent) {
+            $exporter = new data_request_exporter($requestpersistent, ['context' => $systemcontext]);
+            $renderer = $PAGE->get_renderer('tool_dataprivacy');
+            $requests[] = $exporter->export($renderer);
+        }
+
+        return [
+            'requests' => $requests,
+            'warnings' => [],
+        ];
+    }
+
+    /**
+     * Webservice returns.
+     *
+     * @return external_single_structure
+     */
+    public static function execute_returns(): external_single_structure {
+        return new external_single_structure(
+            [
+                'requests' => new external_multiple_structure(data_request_exporter::get_read_structure(), 'The data requests.'),
+                'warnings' => new external_warnings(),
+            ]
+        );
+    }
+}

admin/tool/dataprivacy/classes/external/name_description_exporter.php

@@ -0,0 +1,63 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class for exporting an object containing a name and a description.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\external;
+defined('MOODLE_INTERNAL') || die();
+
+use core\external\exporter;
+
+/**
+ * Class that exports an object containing a name and a description.
+ *
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class name_description_exporter extends exporter {
+
+    /**
+     * Returns a list of objects that are related.
+     *
+     * @return array
+     */
+    protected static function define_related() {
+        return array(
+            'context' => 'context',
+        );
+    }
+
+    /**
+     * Return the list of properties.
+     *
+     * @return array
+     */
+    protected static function define_properties() {
+        return [
+            'name' => [
+                'type' => PARAM_TEXT,
+            ],
+            'description' => [
+                'type' => PARAM_TEXT,
+            ],
+        ];
+    }
+}

admin/tool/dataprivacy/classes/external/purpose_exporter.php

@@ -0,0 +1,159 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class for exporting data purpose.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\external;
+defined('MOODLE_INTERNAL') || die();
+
+use core\external\persistent_exporter;
+use renderer_base;
+use tool_dataprivacy\context_instance;
+use tool_dataprivacy\purpose;
+
+/**
+ * Class for exporting field data.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class purpose_exporter extends persistent_exporter {
+
+    /**
+     * Defines the persistent class.
+     *
+     * @return string
+     */
+    protected static function define_class() {
+        return purpose::class;
+    }
+
+    /**
+     * Returns a list of objects that are related.
+     *
+     * @return array
+     */
+    protected static function define_related() {
+        return array(
+            'context' => 'context',
+        );
+    }
+
+    /**
+     * Return the list of additional properties.
+     *
+     * @return array
+     */
+    protected static function define_other_properties() {
+        return [
+            'formattedretentionperiod' => [
+                'type' => PARAM_TEXT
+            ],
+            'formattedlawfulbases' => [
+                'type' => name_description_exporter::read_properties_definition(),
+                'multiple' => true
+            ],
+            'formattedsensitivedatareasons' => [
+                'type' => name_description_exporter::read_properties_definition(),
+                'multiple' => true,
+                'optional' => true
+            ],
+            'roleoverrides' => [
+                'type' => PARAM_TEXT
+            ],
+        ];
+    }
+
+    /**
+     * Return other properties.
+     *
+     * @param renderer_base $output
+     * @return array
+     * @throws coding_exception
+     * @throws Exception
+     */
+    protected function get_other_values(renderer_base $output) {
+        $values = [];
+
+        $formattedbases = [];
+        $lawfulbases = explode(',', $this->persistent->get('lawfulbases'));
+        if (!empty($lawfulbases)) {
+            foreach ($lawfulbases as $basis) {
+                if (empty(trim($basis))) {
+                    continue;
+                }
+                $formattedbases[] = (object)[
+                    'name' => get_string($basis . '_name', 'tool_dataprivacy'),
+                    'description' => get_string($basis . '_description', 'tool_dataprivacy')
+                ];
+            }
+        }
+        $values['formattedlawfulbases'] = $formattedbases;
+
+        $formattedsensitivereasons = [];
+        $sensitivereasons = explode(',', $this->persistent->get('sensitivedatareasons') ?? '');
+        if (!empty($sensitivereasons)) {
+            foreach ($sensitivereasons as $reason) {
+                if (empty(trim($reason))) {
+                    continue;
+                }
+                $formattedsensitivereasons[] = (object)[
+                    'name' => get_string($reason . '_name', 'tool_dataprivacy'),
+                    'description' => get_string($reason . '_description', 'tool_dataprivacy')
+                ];
+            }
+        }
+        $values['formattedsensitivedatareasons'] = $formattedsensitivereasons;
+
+        $retentionperiod = $this->persistent->get('retentionperiod');
+        if ($retentionperiod) {
+            $formattedtime = \tool_dataprivacy\api::format_retention_period(new \DateInterval($retentionperiod));
+        } else {
+            $formattedtime = get_string('retentionperiodnotdefined', 'tool_dataprivacy');
+        }
+        $values['formattedretentionperiod'] = $formattedtime;
+
+        $values['roleoverrides'] = !empty($this->persistent->get_purpose_overrides());
+
+        return $values;
+    }
+
+    /**
+     * Utility function that fetches a purpose name from the given ID.
+     *
+     * @param int $purposeid The purpose ID. Could be INHERIT (false, -1), NOT_SET (0), or the actual ID.
+     * @return string The purpose name.
+     */
+    public static function get_name($purposeid) {
+        global $PAGE;
+        if ($purposeid === false || $purposeid == context_instance::INHERIT) {
+            return get_string('inherit', 'tool_dataprivacy');
+        } else if ($purposeid == context_instance::NOTSET) {
+            return get_string('notset', 'tool_dataprivacy');
+        } else {
+            $purpose = new purpose($purposeid);
+            $output = $PAGE->get_renderer('tool_dataprivacy');
+            $exporter = new self($purpose, ['context' => \context_system::instance()]);
+            $data = $exporter->export($output);
+            return $data->name;
+        }
+    }
+}

admin/tool/dataprivacy/classes/external/submit_selected_courses_form.php

@@ -0,0 +1,131 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class for submit selected courses from form.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2021 The Open University.
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\external;
+
+use core_external\external_api;
+use core_external\external_function_parameters;
+use core_external\external_single_structure;
+use core_external\external_value;
+use core_external\external_warnings;
+use core\notification;
+use context_system;
+
+/**
+ * Class for submit selected courses from form.
+ *
+ * @copyright  2021 The Open University.
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @since Moodle 4.3
+ */
+class submit_selected_courses_form extends external_api {
+    /**
+     * Parameter description for get_data_request().
+     *
+     * @return external_function_parameters
+     */
+    public static function execute_parameters(): external_function_parameters {
+        return new external_function_parameters([
+            'requestid' => new external_value(PARAM_INT, 'The id of data request'),
+            'jsonformdata' => new external_value(PARAM_RAW, 'The data of selected courses form, encoded as a json array'),
+        ]);
+    }
+
+    /**
+     * Fetch the list of course which user can select to export data.
+     *
+     * @param int $requestid The request ID.
+     * @param string $jsonformdata The data of selected courses form.
+     * @return array
+     */
+    public static function execute(int $requestid, string $jsonformdata): array {
+
+        $warnings = [];
+        $result = false;
+        $params = self::validate_parameters(self::execute_parameters(), [
+            'requestid' => $requestid,
+            'jsonformdata' => $jsonformdata,
+        ]);
+
+        $context = context_system::instance();
+        self::validate_context($context);
+
+        // Make sure the user has the proper capability.
+        require_capability('tool/dataprivacy:managedatarequests', $context);
+
+        $requestid = $params['requestid'];
+        $serialiseddata = json_decode($params['jsonformdata']);
+        $data = array();
+        parse_str($serialiseddata, $data);
+
+        $mform = new \tool_dataprivacy\form\exportfilter_form(null, ['requestid' => $requestid], 'post', '', null, true, $data);
+
+        if (PHPUNIT_TEST) {
+            $validateddata = $mform->mock_ajax_submit($data);
+        } else {
+            $validateddata = $mform->get_data();
+        }
+        if ($validateddata) {
+            // Ensure the request exists.
+            $requestexists = \tool_dataprivacy\data_request::record_exists($requestid);
+
+            if ($requestexists) {
+                $coursecontextids = [];
+                if (!empty($validateddata->coursecontextids)) {
+                    $coursecontextids = $validateddata->coursecontextids;
+                }
+                if (PHPUNIT_TEST) {
+                    if (!empty($validateddata['coursecontextids'])) {
+                        $coursecontextids = $validateddata['coursecontextids'];
+                    }
+                }
+                $result = \tool_dataprivacy\api::approve_data_request($requestid, $coursecontextids);
+
+                // Add notification in the session to be shown when the page is reloaded on the JS side.
+                notification::success(get_string('requestapproved', 'tool_dataprivacy'));
+            } else {
+                $warnings = [
+                    'item' => $requestid,
+                    'warningcode' => 'errorrequestnotfound',
+                    'message' => get_string('errorrequestnotfound', 'tool_dataprivacy'),
+                ];
+            }
+        }
+        return [
+            'result' => $result,
+            'warnings' => $warnings,
+        ];
+    }
+
+    /**
+     * Parameter description for submit_selected_courses_form().
+     *
+     * @return external_single_structure
+     */
+    public static function execute_returns(): external_single_structure {
+        return new external_single_structure([
+            'result' => new external_value(PARAM_BOOL, 'The processing result'),
+            'warnings' => new external_warnings(),
+        ]);
+    }
+}

admin/tool/dataprivacy/classes/filtered_userlist.php

@@ -0,0 +1,63 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * An implementation of a userlist which has been filtered and approved.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Andrew Nicols <andrew@nicols.co.uk>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * An implementation of a userlist which can be filtered by role.
+ *
+ * @copyright  2018 Andrew Nicols <andrew@nicols.co.uk>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class filtered_userlist extends \core_privacy\local\request\approved_userlist {
+
+    /**
+     * Apply filters to only remove users in the expireduserids list, and to remove any who are in the unexpired list.
+     * The unexpired list wins where a user is in both lists.
+     *
+     * @param   int[]   $expireduserids The list of userids for users who should be expired.
+     * @param   int[]   $unexpireduserids The list of userids for those users who should not be expired.
+     * @return  $this
+     */
+    public function apply_expired_context_filters(array $expireduserids, array $unexpireduserids): filtered_userlist {
+        // The current userlist content.
+        $userids = $this->get_userids();
+
+        if (!empty($expireduserids)) {
+            // Now remove any not on the list of expired users.
+            $userids = array_intersect($userids, $expireduserids);
+        }
+
+        if (!empty($unexpireduserids)) {
+            // Remove any on the list of unexpiredusers users.
+            $userids = array_diff($userids, $unexpireduserids);
+        }
+
+        $this->set_userids($userids);
+
+        return $this;
+    }
+}

admin/tool/dataprivacy/classes/form/category.php

@@ -0,0 +1,67 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the form add/update a data category.
+ *
+ * @package   tool_dataprivacy
+ * @copyright 2018 David Monllao
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy\form;
+defined('MOODLE_INTERNAL') || die();
+
+use core\form\persistent;
+
+/**
+ * Data category form.
+ *
+ * @package   tool_dataprivacy
+ * @copyright 2018 David Monllao
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class category extends persistent {
+
+    /**
+     * @var The persistent class.
+     */
+    protected static $persistentclass = 'tool_dataprivacy\\category';
+
+    /**
+     * Define the form - called by parent constructor
+     */
+    public function definition() {
+        $mform = $this->_form;
+
+        $mform->addElement('text', 'name', get_string('name'), 'maxlength="100"');
+        $mform->setType('name', PARAM_TEXT);
+        $mform->addRule('name', get_string('required'), 'required', null, 'server');
+        $mform->addRule('name', get_string('maximumchars', '', 100), 'maxlength', 100, 'server');
+
+        $mform->addElement('editor', 'description', get_string('description'), null, ['autosave' => false]);
+        $mform->setType('description', PARAM_CLEANHTML);
+
+        if (!empty($this->_customdata['showbuttons'])) {
+            if (!$this->get_persistent()->get('id')) {
+                $savetext = get_string('add');
+            } else {
+                $savetext = get_string('savechanges');
+            }
+            $this->add_action_buttons(true, $savetext);
+        }
+    }
+}

admin/tool/dataprivacy/classes/form/contactdpo.php

@@ -0,0 +1,100 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+
+namespace tool_dataprivacy\form;
+
+use context;
+use context_user;
+use moodle_exception;
+use moodle_url;
+use core_form\dynamic_form;
+use tool_dataprivacy\api;
+use tool_dataprivacy\external;
+
+/**
+ * Contact DPO modal form
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2021 Paul Holden <paulh@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class contactdpo extends dynamic_form {
+
+    /**
+     * Form definition
+     */
+    protected function definition() {
+        global $USER;
+
+        $mform = $this->_form;
+
+        $mform->addElement('static', 'replyto', get_string('replyto', 'tool_dataprivacy'), s($USER->email));
+
+        $mform->addElement('textarea', 'message', get_string('message', 'tool_dataprivacy'), 'cols="60" rows="8"');
+        $mform->setType('message', PARAM_TEXT);
+        $mform->addRule('message', get_string('required'), 'required', null, 'client');
+    }
+
+    /**
+     * Return form context
+     *
+     * @return context
+     */
+    protected function get_context_for_dynamic_submission(): context {
+        global $USER;
+
+        return context_user::instance($USER->id);
+    }
+
+    /**
+     * Check if current user has access to this form, otherwise throw exception
+     *
+     * @throws moodle_exception
+     */
+    protected function check_access_for_dynamic_submission(): void {
+        if (!api::can_contact_dpo()) {
+            throw new moodle_exception('errorcontactdpodisabled', 'tool_dataprivacy');
+        }
+    }
+
+    /**
+     * Process the form submission, used if form was submitted via AJAX
+     *
+     * @return array
+     */
+    public function process_dynamic_submission() {
+        return external::contact_dpo($this->get_data()->message);
+    }
+
+    /**
+     * Load in existing data as form defaults (not applicable)
+     */
+    public function set_data_for_dynamic_submission(): void {
+        return;
+    }
+
+    /**
+     * Returns url to set in $PAGE->set_url() when form is being rendered or submitted via AJAX
+     *
+     * @return moodle_url
+     */
+    protected function get_page_url_for_dynamic_submission(): moodle_url {
+        global $USER;
+
+        return new moodle_url('/user/profile.php', ['id' => $USER->id]);
+    }
+}

admin/tool/dataprivacy/classes/form/context_instance.php

@@ -0,0 +1,226 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the form add/update context instance data.
+ *
+ * @package   tool_dataprivacy
+ * @copyright 2018 David Monllao
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy\form;
+defined('MOODLE_INTERNAL') || die();
+
+use tool_dataprivacy\api;
+use tool_dataprivacy\data_registry;
+use tool_dataprivacy\purpose;
+
+/**
+ * Context instance data form.
+ *
+ * @package   tool_dataprivacy
+ * @copyright 2018 David Monllao
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class context_instance extends \core\form\persistent {
+
+    /**
+     * @var The persistent class.
+     */
+    protected static $persistentclass = 'tool_dataprivacy\\context_instance';
+
+    /**
+     * Define the form - called by parent constructor
+     */
+    public function definition() {
+        $this->_form->setDisableShortforms();
+
+        $this->_form->addElement('header', 'contextname', $this->_customdata['contextname']);
+
+        $subjectscope = implode(', ', $this->_customdata['subjectscope']);
+        if (empty($subjectscope)) {
+            $subjectscope = get_string('noassignedroles', 'tool_dataprivacy');
+        }
+        $this->_form->addElement('static', 'subjectscope', get_string('subjectscope', 'tool_dataprivacy'), $subjectscope);
+        $this->_form->addHelpButton('subjectscope', 'subjectscope', 'tool_dataprivacy');
+
+        $this->add_purpose_category($this->_customdata['context']->contextlevel);
+
+        $this->_form->addElement('hidden', 'contextid');
+        $this->_form->setType('contextid', PARAM_INT);
+
+        parent::add_action_buttons(false, get_string('savechanges'));
+    }
+
+    /**
+     * Adds purpose and category selectors.
+     *
+     * @param int $contextlevel Apply this context level defaults. False for no defaults.
+     * @return null
+     */
+    protected function add_purpose_category($contextlevel = false) {
+
+        $mform = $this->_form;
+
+        $addcategorytext = $this->get_add_element_content(get_string('addcategory', 'tool_dataprivacy'));
+        $categoryselect = $mform->createElement('select', 'categoryid', null, $this->_customdata['categories']);
+        $addcategory = $mform->createElement('button', 'addcategory', $addcategorytext, ['data-add-element' => 'category']);
+        $mform->addElement('group', 'categorygroup', get_string('category', 'tool_dataprivacy'),
+            [$categoryselect, $addcategory], null, false);
+        $mform->addHelpButton('categorygroup', 'category', 'tool_dataprivacy');
+        $mform->setType('categoryid', PARAM_INT);
+        $mform->setDefault('categoryid', 0);
+
+        $addpurposetext = $this->get_add_element_content(get_string('addpurpose', 'tool_dataprivacy'));
+        $purposeselect = $mform->createElement('select', 'purposeid', null, $this->_customdata['purposes']);
+        $addpurpose = $mform->createElement('button', 'addpurpose', $addpurposetext, ['data-add-element' => 'purpose']);
+        $mform->addElement('group', 'purposegroup', get_string('purpose', 'tool_dataprivacy'),
+            [$purposeselect, $addpurpose], null, false);
+        $mform->addHelpButton('purposegroup', 'purpose', 'tool_dataprivacy');
+        $mform->setType('purposeid', PARAM_INT);
+        $mform->setDefault('purposeid', 0);
+
+        if (!empty($this->_customdata['currentretentionperiod'])) {
+            $mform->addElement('static', 'retention_current', get_string('retentionperiod', 'tool_dataprivacy'),
+                $this->_customdata['currentretentionperiod']);
+            $mform->addHelpButton('retention_current', 'retentionperiod', 'tool_dataprivacy');
+        }
+    }
+
+    /**
+     * Returns the 'add' label.
+     *
+     * It depends on the theme in use.
+     *
+     * @param string $label
+     * @return \renderable|string
+     */
+    private function get_add_element_content($label) {
+        global $PAGE, $OUTPUT;
+
+        $bs4 = false;
+
+        $theme = $PAGE->theme;
+        if ($theme->name === 'boost') {
+            $bs4 = true;
+        } else {
+            foreach ($theme->parents as $basetheme) {
+                if ($basetheme === 'boost') {
+                    $bs4 = true;
+                }
+            }
+        }
+
+        if (!$bs4) {
+            return $label;
+        }
+        return $OUTPUT->pix_icon('e/insert', $label);
+    }
+
+    /**
+     * Returns the customdata array for the provided context instance.
+     *
+     * @param \context $context
+     * @return array
+     */
+    public static function get_context_instance_customdata(\context $context) {
+
+        $persistent = \tool_dataprivacy\context_instance::get_record_by_contextid($context->id, false);
+        if (!$persistent) {
+            $persistent = new \tool_dataprivacy\context_instance();
+            $persistent->set('contextid', $context->id);
+        }
+
+        $purposes = [];
+        foreach (api::get_purposes() as $purpose) {
+            $purposes[$purpose->get('id')] = $purpose;
+        }
+        $purposeoptions = \tool_dataprivacy\output\data_registry_page::purpose_options($purposes);
+        $categoryoptions = \tool_dataprivacy\output\data_registry_page::category_options(api::get_categories());
+
+        $customdata = [
+            'context' => $context,
+            'subjectscope' => data_registry::get_subject_scope($context),
+            'contextname' => $context->get_context_name(),
+            'persistent' => $persistent,
+            'purposes' => $purposeoptions,
+            'categories' => $categoryoptions,
+        ];
+
+        $effectivepurpose = api::get_effective_context_purpose($context);
+        if ($effectivepurpose) {
+
+            $customdata['currentretentionperiod'] = self::get_retention_display_text($effectivepurpose, $context->contextlevel,
+                $context);
+
+            $customdata['purposeretentionperiods'] = [];
+            foreach (array_keys($purposeoptions) as $optionvalue) {
+
+                if (isset($purposes[$optionvalue])) {
+                    $purpose = $purposes[$optionvalue];
+                } else {
+                    // Get the effective purpose if $optionvalue would be the selected value.
+                    $purpose = api::get_effective_context_purpose($context, $optionvalue);
+                }
+
+                $retentionperiod = self::get_retention_display_text(
+                    $purpose,
+                    $context->contextlevel,
+                    $context
+                );
+                $customdata['purposeretentionperiods'][$optionvalue] = $retentionperiod;
+            }
+        }
+
+        return $customdata;
+    }
+
+    /**
+     * Returns the purpose display text.
+     *
+     * @param purpose $effectivepurpose
+     * @param int $retentioncontextlevel
+     * @param \context $context The context, just for displaying (filters) purposes.
+     * @return string
+     */
+    protected static function get_retention_display_text(purpose $effectivepurpose, $retentioncontextlevel, \context $context) {
+        global $PAGE;
+
+        $renderer = $PAGE->get_renderer('tool_dataprivacy');
+
+        $exporter = new \tool_dataprivacy\external\purpose_exporter($effectivepurpose, ['context' => $context]);
+        $exportedpurpose = $exporter->export($renderer);
+
+        switch ($retentioncontextlevel) {
+            case CONTEXT_COURSE:
+            case CONTEXT_MODULE:
+            case CONTEXT_BLOCK:
+                $str = get_string('effectiveretentionperiodcourse', 'tool_dataprivacy',
+                    $exportedpurpose->formattedretentionperiod);
+                break;
+            case CONTEXT_USER:
+                $str = get_string('effectiveretentionperioduser', 'tool_dataprivacy',
+                    $exportedpurpose->formattedretentionperiod);
+                break;
+            default:
+                $str = $exportedpurpose->formattedretentionperiod;
+        }
+
+        return $str;
+    }
+
+}

admin/tool/dataprivacy/classes/form/contextlevel.php

@@ -0,0 +1,124 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the form add/update context level data.
+ *
+ * @package   tool_dataprivacy
+ * @copyright 2018 David Monllao
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy\form;
+defined('MOODLE_INTERNAL') || die();
+
+use core\form\persistent;
+use tool_dataprivacy\api;
+use tool_dataprivacy\data_registry;
+
+/**
+ * Context level data form.
+ *
+ * @package   tool_dataprivacy
+ * @copyright 2018 David Monllao
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class contextlevel extends context_instance {
+
+    /**
+     * @var The persistent class.
+     */
+    protected static $persistentclass = 'tool_dataprivacy\\contextlevel';
+
+    /**
+     * Define the form - called by parent constructor
+     */
+    public function definition() {
+        $this->_form->setDisableShortforms();
+
+        $this->_form->addElement('header', 'contextlevelname', $this->_customdata['contextlevelname']);
+
+        $this->add_purpose_category();
+
+        $this->_form->addElement('hidden', 'contextlevel');
+        $this->_form->setType('contextlevel', PARAM_INT);
+
+        parent::add_action_buttons(false, get_string('savechanges'));
+    }
+
+    /**
+     * Returns the customdata array for the provided context level.
+     *
+     * @param int $contextlevel
+     * @return array
+     */
+    public static function get_contextlevel_customdata($contextlevel) {
+
+        $persistent = \tool_dataprivacy\contextlevel::get_record_by_contextlevel($contextlevel, false);
+        if (!$persistent) {
+            $persistent = new \tool_dataprivacy\contextlevel();
+            $persistent->set('contextlevel', $contextlevel);
+        }
+
+        $includeinherit = true;
+        if ($contextlevel == CONTEXT_SYSTEM) {
+            // Nothing to inherit from Site level.
+            $includeinherit = false;
+        }
+        $includenotset = true;
+        if ($contextlevel == CONTEXT_SYSTEM || $contextlevel == CONTEXT_USER) {
+            // No 'not set' value for system and user because we do not have defaults for them.
+            $includenotset = false;
+        }
+        $purposeoptions = \tool_dataprivacy\output\data_registry_page::purpose_options(
+            api::get_purposes(), $includenotset, $includeinherit);
+        $categoryoptions = \tool_dataprivacy\output\data_registry_page::category_options(
+            api::get_categories(), $includenotset, $includeinherit);
+
+        $customdata = [
+            'contextlevel' => $contextlevel,
+            'contextlevelname' => get_string('contextlevelname' . $contextlevel, 'tool_dataprivacy'),
+            'persistent' => $persistent,
+            'purposes' => $purposeoptions,
+            'categories' => $categoryoptions,
+        ];
+
+        $effectivepurpose = api::get_effective_contextlevel_purpose($contextlevel);
+        if ($effectivepurpose) {
+
+            $customdata['currentretentionperiod'] = self::get_retention_display_text($effectivepurpose, $contextlevel,
+                \context_system::instance());
+
+            $customdata['purposeretentionperiods'] = [];
+            foreach ($purposeoptions as $optionvalue => $unused) {
+
+                // Get the effective purpose if $optionvalue would be the selected value.
+                list($purposeid, $unused) = data_registry::get_effective_default_contextlevel_purpose_and_category($contextlevel,
+                    $optionvalue);
+                $purpose = new \tool_dataprivacy\purpose($purposeid);
+
+                $retentionperiod = self::get_retention_display_text(
+                    $purpose,
+                    $contextlevel,
+                    \context_system::instance()
+                );
+                $customdata['purposeretentionperiods'][$optionvalue] = $retentionperiod;
+            }
+        }
+
+        return $customdata;
+    }
+}

admin/tool/dataprivacy/classes/form/exportfilter_form.php

@@ -0,0 +1,106 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Form to filter export data.
+ *
+ * @copyright 2021 The Open University
+ * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
+ * @package tool_dataprivacy
+ * @since Moodle 4.3
+ */
+
+namespace tool_dataprivacy\form;
+
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->libdir.'/formslib.php');
+
+/**
+ * Form to filter export data.
+ *
+ * @copyright 2021 The Open University
+ * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
+ * @package tool_dataprivacy
+ * @since   Moodle 4.3
+ */
+class exportfilter_form extends \moodleform {
+    /**
+     * Form definition.
+     */
+    public function definition(): void {
+        $requestid = $this->_customdata['requestid'];
+        $mform = $this->_form;
+        $selectitems = [];
+
+        $mform->addElement('hidden', 'requestid', $requestid);
+        $mform->setType('requestid', PARAM_INT);
+        $contexts = \tool_dataprivacy\api::get_course_contexts_for_view_filter($requestid);
+        foreach ($contexts as $context) {
+            $coursename = '';
+            $groupname = '';
+            $parentcontexts = $context->get_parent_contexts(true);
+            $parentcontexts = array_reverse($parentcontexts);
+            end($parentcontexts);
+            $lastkey = key($parentcontexts);
+            reset($parentcontexts);
+            $firstkey = key($parentcontexts);
+
+            foreach ($parentcontexts as $key => $parentcontext) {
+                if ($key !== $lastkey) {
+                    if ($key !== $firstkey) {
+                        $groupname .= ' > ';
+                    }
+                    $groupname .= $parentcontext->get_context_name(false);
+                } else {
+                    $coursename = $parentcontext->get_context_name(false);
+                }
+            }
+
+            $selectitems[$groupname][$context->id] = $coursename;
+        }
+
+        if ($contexts) {
+            $mform->addElement(
+                'selectgroups',
+                'coursecontextids',
+                get_string('selectcourses', 'tool_dataprivacy'),
+                $selectitems,
+            );
+            $mform->getElement('coursecontextids')->setMultiple(true);
+            $mform->getElement('coursecontextids')->setSize(15);
+        } else {
+            $mform->addElement('html', get_string('nocoursetofilter', 'tool_dataprivacy'));
+        }
+    }
+
+    /**
+     * Form validation.
+     *
+     * @param array $data
+     * @param array $files
+     * @return array
+     */
+    public function validation($data, $files) {
+        $errors = [];
+
+        if (empty($data['coursecontextids'])) {
+            $errors['coursecontextids'] = get_string('errornoselectedcourse', 'tool_dataprivacy');
+        }
+
+        return $errors;
+    }
+}

admin/tool/dataprivacy/classes/form/purpose.php

@@ -0,0 +1,577 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the form add/update a data purpose.
+ *
+ * @package   tool_dataprivacy
+ * @copyright 2018 David Monllao
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy\form;
+defined('MOODLE_INTERNAL') || die();
+
+use core\form\persistent;
+
+/**
+ * Data purpose form.
+ *
+ * @package   tool_dataprivacy
+ * @copyright 2018 David Monllao
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class purpose extends persistent {
+
+    /**
+     * @var string The persistent class.
+     */
+    protected static $persistentclass = 'tool_dataprivacy\\purpose';
+
+    /**
+     * @var array The list of current overrides.
+     */
+    protected $existingoverrides = [];
+
+    /**
+     * Define the form - called by parent constructor
+     */
+    public function definition() {
+        $mform = $this->_form;
+
+        $mform->addElement('text', 'name', get_string('name'), 'maxlength="100"');
+        $mform->setType('name', PARAM_TEXT);
+        $mform->addRule('name', get_string('required'), 'required', null, 'server');
+        $mform->addRule('name', get_string('maximumchars', '', 100), 'maxlength', 100, 'server');
+
+        $mform->addElement('editor', 'description', get_string('description'), null, ['autosave' => false]);
+        $mform->setType('description', PARAM_CLEANHTML);
+
+        // Field for selecting lawful bases (from GDPR Article 6.1).
+        $this->add_field($this->get_lawful_base_field());
+        $mform->addRule('lawfulbases', get_string('required'), 'required', null, 'server');
+
+        // Optional field for selecting reasons for collecting sensitive personal data (from GDPR Article 9.2).
+        $this->add_field($this->get_sensitive_base_field());
+
+        $this->add_field($this->get_retention_period_fields());
+        $this->add_field($this->get_protected_field());
+
+        $this->add_override_fields();
+
+        if (!empty($this->_customdata['showbuttons'])) {
+            if (!$this->get_persistent()->get('id')) {
+                $savetext = get_string('add');
+            } else {
+                $savetext = get_string('savechanges');
+            }
+            $this->add_action_buttons(true, $savetext);
+        }
+    }
+
+    /**
+     * Add a fieldset to the current form.
+     *
+     * @param   \stdClass   $data
+     */
+    protected function add_field(\stdClass $data) {
+        foreach ($data->fields as $field) {
+            $this->_form->addElement($field);
+        }
+
+        if (!empty($data->helps)) {
+            foreach ($data->helps as $fieldname => $helpdata) {
+                $help = array_merge([$fieldname], $helpdata);
+                call_user_func_array([$this->_form, 'addHelpButton'], $help);
+            }
+        }
+
+        if (!empty($data->types)) {
+            foreach ($data->types as $fieldname => $type) {
+                $this->_form->setType($fieldname, $type);
+            }
+        }
+
+        if (!empty($data->rules)) {
+            foreach ($data->rules as $fieldname => $ruledata) {
+                $rule = array_merge([$fieldname], $ruledata);
+                call_user_func_array([$this->_form, 'addRule'], $rule);
+            }
+        }
+
+        if (!empty($data->defaults)) {
+            foreach ($data->defaults as $fieldname => $default) {
+                $this->_form($fieldname, $default);
+            }
+        }
+    }
+
+    /**
+     * Handle addition of relevant repeated element fields for role overrides.
+     */
+    protected function add_override_fields() {
+        $purpose = $this->get_persistent();
+
+        if (empty($purpose->get('id'))) {
+            // It is not possible to use repeated elements in a modal form yet.
+            return;
+        }
+
+        $fields = [
+            $this->get_role_override_id('roleoverride_'),
+            $this->get_role_field('roleoverride_'),
+            $this->get_retention_period_fields('roleoverride_'),
+            $this->get_protected_field('roleoverride_'),
+            $this->get_lawful_base_field('roleoverride_'),
+            $this->get_sensitive_base_field('roleoverride_'),
+        ];
+
+        $options = [
+            'type' => [],
+            'helpbutton' => [],
+        ];
+
+        // Start by adding the title.
+        $overrideelements = [
+            $this->_form->createElement('header', 'roleoverride', get_string('roleoverride', 'tool_dataprivacy')),
+            $this->_form->createElement(
+                'static',
+                'roleoverrideoverview',
+                '',
+                get_string('roleoverrideoverview', 'tool_dataprivacy')
+            ),
+        ];
+
+        foreach ($fields as $fielddata) {
+            foreach ($fielddata->fields as $field) {
+                $overrideelements[] = $field;
+            }
+
+            if (!empty($fielddata->helps)) {
+                foreach ($fielddata->helps as $name => $help) {
+                    if (!isset($options[$name])) {
+                        $options[$name] = [];
+                    }
+                    $options[$name]['helpbutton'] = $help;
+                }
+            }
+
+            if (!empty($fielddata->types)) {
+                foreach ($fielddata->types as $name => $type) {
+                    if (!isset($options[$name])) {
+                        $options[$name] = [];
+                    }
+                    $options[$name]['type'] = $type;
+                }
+            }
+
+            if (!empty($fielddata->rules)) {
+                foreach ($fielddata->rules as $name => $rule) {
+                    if (!isset($options[$name])) {
+                        $options[$name] = [];
+                    }
+                    $options[$name]['rule'] = $rule;
+                }
+            }
+
+            if (!empty($fielddata->defaults)) {
+                foreach ($fielddata->defaults as $name => $default) {
+                    if (!isset($options[$name])) {
+                        $options[$name] = [];
+                    }
+                    $options[$name]['default'] = $default;
+                }
+            }
+
+            if (!empty($fielddata->advanceds)) {
+                foreach ($fielddata->advanceds as $name => $advanced) {
+                    if (!isset($options[$name])) {
+                        $options[$name] = [];
+                    }
+                    $options[$name]['advanced'] = $advanced;
+                }
+            }
+        }
+
+        $this->existingoverrides = $purpose->get_purpose_overrides();
+        $existingoverridecount = count($this->existingoverrides);
+
+        $this->repeat_elements(
+                $overrideelements,
+                $existingoverridecount,
+                $options,
+                'overrides',
+                'addoverride',
+                1,
+                get_string('addroleoverride', 'tool_dataprivacy')
+            );
+    }
+
+    /**
+     * Converts fields.
+     *
+     * @param \stdClass $data
+     * @return \stdClass
+     */
+    public function filter_data_for_persistent($data) {
+        $data = parent::filter_data_for_persistent($data);
+
+        $classname = static::$persistentclass;
+        $properties = $classname::properties_definition();
+
+        $data = (object) array_filter((array) $data, function($value, $key) use ($properties) {
+            return isset($properties[$key]);
+        }, ARRAY_FILTER_USE_BOTH);
+
+        return $data;
+    }
+
+    /**
+     * Get the field for the role name.
+     *
+     * @param   string  $prefix The prefix to apply to the field
+     * @return  \stdClass
+     */
+    protected function get_role_override_id(string $prefix = ''): \stdClass {
+        $fieldname = "{$prefix}id";
+
+        $fielddata = (object) [
+            'fields' => [],
+        ];
+
+        $fielddata->fields[] = $this->_form->createElement('hidden', $fieldname);
+        $fielddata->types[$fieldname] = PARAM_INT;
+
+        return $fielddata;
+    }
+
+    /**
+     * Get the field for the role name.
+     *
+     * @param   string  $prefix The prefix to apply to the field
+     * @return  \stdClass
+     */
+    protected function get_role_field(string $prefix = ''): \stdClass {
+        $fieldname = "{$prefix}roleid";
+
+        $fielddata = (object) [
+            'fields' => [],
+            'helps' => [],
+        ];
+
+        $roles = [
+            '' => get_string('none'),
+        ];
+        foreach (role_get_names() as $roleid => $role) {
+            $roles[$roleid] = $role->localname;
+        }
+
+        $fielddata->fields[] = $this->_form->createElement('select', $fieldname, get_string('role'),
+            $roles,
+            [
+                'multiple' => false,
+            ]
+        );
+        $fielddata->helps[$fieldname] = ['role', 'tool_dataprivacy'];
+        $fielddata->defaults[$fieldname] = null;
+
+        return $fielddata;
+    }
+
+    /**
+     * Get the mform field for lawful bases.
+     *
+     * @param   string  $prefix The prefix to apply to the field
+     * @return  \stdClass
+     */
+    protected function get_lawful_base_field(string $prefix = ''): \stdClass {
+        $fieldname = "{$prefix}lawfulbases";
+
+        $data = (object) [
+            'fields' => [],
+        ];
+
+        $bases = [];
+        foreach (\tool_dataprivacy\purpose::GDPR_ART_6_1_ITEMS as $article) {
+            $key = 'gdpr_art_6_1_' . $article;
+            $bases[$key] = get_string("{$key}_name", 'tool_dataprivacy');
+        }
+
+        $data->fields[] = $this->_form->createElement('autocomplete', $fieldname, get_string('lawfulbases', 'tool_dataprivacy'),
+            $bases,
+            [
+                'multiple' => true,
+            ]
+        );
+
+        $data->helps = [
+            $fieldname => ['lawfulbases', 'tool_dataprivacy'],
+        ];
+
+        $data->advanceds = [
+            $fieldname => true,
+        ];
+
+        return $data;
+    }
+
+    /**
+     * Get the mform field for sensitive bases.
+     *
+     * @param   string  $prefix The prefix to apply to the field
+     * @return  \stdClass
+     */
+    protected function get_sensitive_base_field(string $prefix = ''): \stdClass {
+        $fieldname = "{$prefix}sensitivedatareasons";
+
+        $data = (object) [
+            'fields' => [],
+        ];
+
+        $bases = [];
+        foreach (\tool_dataprivacy\purpose::GDPR_ART_9_2_ITEMS as $article) {
+            $key = 'gdpr_art_9_2_' . $article;
+            $bases[$key] = get_string("{$key}_name", 'tool_dataprivacy');
+        }
+
+        $data->fields[] = $this->_form->createElement(
+            'autocomplete',
+            $fieldname,
+            get_string('sensitivedatareasons', 'tool_dataprivacy'),
+            $bases,
+            [
+                'multiple' => true,
+            ]
+        );
+        $data->helps = [
+            $fieldname => ['sensitivedatareasons', 'tool_dataprivacy'],
+        ];
+
+        $data->advanceds = [
+            $fieldname => true,
+        ];
+
+        return $data;
+    }
+
+    /**
+     * Get the retention period fields.
+     *
+     * @param   string  $prefix The name of the main field, and prefix for the subfields.
+     * @return  \stdClass
+     */
+    protected function get_retention_period_fields(string $prefix = ''): \stdClass {
+        $prefix = "{$prefix}retentionperiod";
+        $data = (object) [
+            'fields' => [],
+            'types' => [],
+        ];
+
+        $number = $this->_form->createElement('text', "{$prefix}number", null, ['size' => 8]);
+        $data->types["{$prefix}number"] = PARAM_INT;
+
+        $unitoptions = [
+            'Y' => get_string('years'),
+            'M' => strtolower(get_string('months')),
+            'D' => strtolower(get_string('days'))
+        ];
+        $unit = $this->_form->createElement('select', "{$prefix}unit", '', $unitoptions);
+
+        $data->fields[] = $this->_form->createElement(
+                'group',
+                $prefix,
+                get_string('retentionperiod', 'tool_dataprivacy'),
+                [
+                    'number' => $number,
+                    'unit' => $unit,
+                ],
+                null,
+                false
+            );
+
+        return $data;
+    }
+
+    /**
+     * Get the mform field for the protected flag.
+     *
+     * @param   string  $prefix The prefix to apply to the field
+     * @return  \stdClass
+     */
+    protected function get_protected_field(string $prefix = ''): \stdClass {
+        $fieldname = "{$prefix}protected";
+
+        return (object) [
+            'fields' => [
+                $this->_form->createElement(
+                        'advcheckbox',
+                        $fieldname,
+                        get_string('protected', 'tool_dataprivacy'),
+                        get_string('protectedlabel', 'tool_dataprivacy')
+                    ),
+            ],
+        ];
+    }
+
+    /**
+     * Converts data to data suitable for storage.
+     *
+     * @param \stdClass $data
+     * @return \stdClass
+     */
+    protected static function convert_fields(\stdClass $data) {
+        $data = parent::convert_fields($data);
+
+        if (!empty($data->lawfulbases) && is_array($data->lawfulbases)) {
+            $data->lawfulbases = implode(',', $data->lawfulbases);
+        }
+        if (!empty($data->sensitivedatareasons) && is_array($data->sensitivedatareasons)) {
+            $data->sensitivedatareasons = implode(',', $data->sensitivedatareasons);
+        } else {
+            // Nothing selected. Set default value of null.
+            $data->sensitivedatareasons = null;
+        }
+
+        // A single value.
+        $data->retentionperiod = 'P' . $data->retentionperiodnumber . $data->retentionperiodunit;
+        unset($data->retentionperiodnumber);
+        unset($data->retentionperiodunit);
+
+        return $data;
+    }
+
+    /**
+     * Get the default data.
+     *
+     * @return \stdClass
+     */
+    protected function get_default_data() {
+        $data = parent::get_default_data();
+
+        return $this->convert_existing_data_to_values($data);
+    }
+
+    /**
+     * Normalise any values stored in existing data.
+     *
+     * @param   \stdClass $data
+     * @return  \stdClass
+     */
+    protected function convert_existing_data_to_values(\stdClass $data): \stdClass {
+        $data->lawfulbases = explode(',', $data->lawfulbases);
+        if (!empty($data->sensitivedatareasons)) {
+            $data->sensitivedatareasons = explode(',', $data->sensitivedatareasons);
+        }
+
+        // Convert the single properties into number and unit.
+        $strlen = strlen($data->retentionperiod);
+        $data->retentionperiodnumber = substr($data->retentionperiod, 1, $strlen - 2);
+        $data->retentionperiodunit = substr($data->retentionperiod, $strlen - 1);
+        unset($data->retentionperiod);
+
+        return $data;
+    }
+
+    /**
+     * Fetch the role override data from the list of submitted data.
+     *
+     * @param   \stdClass   $data The complete set of processed data
+     * @return  \stdClass[] The list of overrides
+     */
+    public function get_role_overrides_from_data(\stdClass $data) {
+        $overrides = [];
+        if (!empty($data->overrides)) {
+            $searchkey = 'roleoverride_';
+
+            for ($i = 0; $i < $data->overrides; $i++) {
+                $overridedata = (object) [];
+                foreach ((array) $data as $fieldname => $value) {
+                    if (strpos($fieldname, $searchkey) !== 0) {
+                        continue;
+                    }
+
+                    $overridefieldname = substr($fieldname, strlen($searchkey));
+                    $overridedata->$overridefieldname = $value[$i];
+                }
+
+                if (empty($overridedata->roleid) || empty($overridedata->retentionperiodnumber)) {
+                    // Skip this one.
+                    // There is no value and it will be delete.
+                    continue;
+                }
+
+                $override = static::convert_fields($overridedata);
+
+                $overrides[$i] = $override;
+            }
+        }
+
+        return $overrides;
+    }
+
+    /**
+     * Define extra validation mechanims.
+     *
+     * @param  stdClass $data Data to validate.
+     * @param  array $files Array of files.
+     * @param  array $errors Currently reported errors.
+     * @return array of additional errors, or overridden errors.
+     */
+    protected function extra_validation($data, $files, array &$errors) {
+        $overrides = $this->get_role_overrides_from_data($data);
+
+        // Check role overrides to ensure that:
+        // - roles are unique; and
+        // - specifeid retention periods are numeric.
+        $seenroleids = [];
+        foreach ($overrides as $id => $override) {
+            $override->purposeid = 0;
+            $persistent = new \tool_dataprivacy\purpose_override($override->id, $override);
+
+            if (isset($seenroleids[$persistent->get('roleid')])) {
+                $errors["roleoverride_roleid[{$id}]"] = get_string('duplicaterole');
+            }
+            $seenroleids[$persistent->get('roleid')] = true;
+
+            $errors = array_merge($errors, $persistent->get_errors());
+        }
+
+        return $errors;
+    }
+
+    /**
+     * Load in existing data as form defaults. Usually new entry defaults are stored directly in
+     * form definition (new entry form); this function is used to load in data where values
+     * already exist and data is being edited (edit entry form).
+     *
+     * @param stdClass $data
+     */
+    public function set_data($data) {
+        $purpose = $this->get_persistent();
+
+        $count = 0;
+        foreach ($this->existingoverrides as $override) {
+            $overridedata = $this->convert_existing_data_to_values($override->to_record());
+            foreach ($overridedata as $key => $value) {
+                $keyname = "roleoverride_{$key}[{$count}]";
+                $data->$keyname = $value;
+            }
+            $count++;
+        }
+
+        parent::set_data($data);
+    }
+}

admin/tool/dataprivacy/classes/hook_callbacks.php

@@ -0,0 +1,53 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+namespace tool_dataprivacy;
+
+use html_writer;
+use moodle_url;
+
+/**
+ * Hook callbacks for tool_dataprivacy.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2024 Andrew Lyons <andrew@nicols.co.uk>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class hook_callbacks {
+    /**
+     * Add the privacy summary to the footer.
+     *
+     * @param \core\hook\output\before_standard_footer_html_generation $hook
+     */
+    public static function standard_footer_html(\core\hook\output\before_standard_footer_html_generation $hook): void {
+        // A returned 0 means that the setting was set and disabled, false means that there is no value for the provided setting.
+        $showsummary = get_config('tool_dataprivacy', 'showdataretentionsummary');
+        if ($showsummary === false) {
+            // This means that no value is stored in db. We use the default value in this case.
+            $showsummary = true;
+        }
+
+        if ($showsummary) {
+            $url = new moodle_url('/admin/tool/dataprivacy/summary.php');
+            $hook->add_html(
+                html_writer::div(
+                    html_writer::link($url, get_string('dataretentionsummary', 'tool_dataprivacy')),
+                    'tool_dataprivacy',
+                ),
+            );
+        }
+    }
+}

admin/tool/dataprivacy/classes/local/helper.php

@@ -0,0 +1,252 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Collection of helper functions for the data privacy tool.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\local;
+defined('MOODLE_INTERNAL') || die();
+
+use coding_exception;
+use moodle_exception;
+use tool_dataprivacy\api;
+use tool_dataprivacy\data_request;
+
+/**
+ * Class containing helper functions for the data privacy tool.
+ *
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class helper {
+    /** The default number of results to be shown per page. */
+    const DEFAULT_PAGE_SIZE = 20;
+
+    /** Filter constant associated with the request type filter. */
+    const FILTER_TYPE = 1;
+
+    /** Filter constant associated with the request status filter. */
+    const FILTER_STATUS = 2;
+
+    /** Filter constant associated with the request creation filter. */
+    const FILTER_CREATION = 3;
+
+    /** The request filters preference key. */
+    const PREF_REQUEST_FILTERS = 'tool_dataprivacy_request-filters';
+
+    /** The number of data request records per page preference key. */
+    const PREF_REQUEST_PERPAGE = 'tool_dataprivacy_request-perpage';
+
+    /**
+     * Retrieves the human-readable text value of a data request type.
+     *
+     * @param int $requesttype The request type.
+     * @return string
+     * @throws coding_exception
+     * @throws moodle_exception
+     */
+    public static function get_request_type_string($requesttype) {
+        $types = self::get_request_types();
+        if (!isset($types[$requesttype])) {
+            throw new moodle_exception('errorinvalidrequesttype', 'tool_dataprivacy');
+        }
+        return $types[$requesttype];
+    }
+
+    /**
+     * Retrieves the human-readable shortened text value of a data request type.
+     *
+     * @param int $requesttype The request type.
+     * @return string
+     * @throws coding_exception
+     * @throws moodle_exception
+     */
+    public static function get_shortened_request_type_string($requesttype) {
+        $types = self::get_request_types_short();
+        if (!isset($types[$requesttype])) {
+            throw new moodle_exception('errorinvalidrequesttype', 'tool_dataprivacy');
+        }
+        return $types[$requesttype];
+    }
+
+    /**
+     * Returns the key value-pairs of request type code and their string value.
+     *
+     * @return array
+     */
+    public static function get_request_types() {
+        return [
+            api::DATAREQUEST_TYPE_EXPORT => get_string('requesttypeexport', 'tool_dataprivacy'),
+            api::DATAREQUEST_TYPE_DELETE => get_string('requesttypedelete', 'tool_dataprivacy'),
+            api::DATAREQUEST_TYPE_OTHERS => get_string('requesttypeothers', 'tool_dataprivacy'),
+        ];
+    }
+
+    /**
+     * Returns the key value-pairs of request type code and their shortened string value.
+     *
+     * @return array
+     */
+    public static function get_request_types_short() {
+        return [
+            api::DATAREQUEST_TYPE_EXPORT => get_string('requesttypeexportshort', 'tool_dataprivacy'),
+            api::DATAREQUEST_TYPE_DELETE => get_string('requesttypedeleteshort', 'tool_dataprivacy'),
+            api::DATAREQUEST_TYPE_OTHERS => get_string('requesttypeothersshort', 'tool_dataprivacy'),
+        ];
+    }
+
+    /**
+     * Retrieves the human-readable value of a data request status.
+     *
+     * @param int $status The request status.
+     * @return string
+     * @throws moodle_exception
+     */
+    public static function get_request_status_string($status) {
+        $statuses = self::get_request_statuses();
+        if (!isset($statuses[$status])) {
+            throw new moodle_exception('errorinvalidrequeststatus', 'tool_dataprivacy');
+        }
+
+        return $statuses[$status];
+    }
+
+    /**
+     * Returns the key value-pairs of request status code and string value.
+     *
+     * @return array
+     */
+    public static function get_request_statuses() {
+        return [
+            api::DATAREQUEST_STATUS_PENDING => get_string('statuspending', 'tool_dataprivacy'),
+            api::DATAREQUEST_STATUS_PREPROCESSING => get_string('statuspreprocessing', 'tool_dataprivacy'),
+            api::DATAREQUEST_STATUS_AWAITING_APPROVAL => get_string('statusawaitingapproval', 'tool_dataprivacy'),
+            api::DATAREQUEST_STATUS_APPROVED => get_string('statusapproved', 'tool_dataprivacy'),
+            api::DATAREQUEST_STATUS_PROCESSING => get_string('statusprocessing', 'tool_dataprivacy'),
+            api::DATAREQUEST_STATUS_COMPLETE => get_string('statuscomplete', 'tool_dataprivacy'),
+            api::DATAREQUEST_STATUS_DOWNLOAD_READY => get_string('statusready', 'tool_dataprivacy'),
+            api::DATAREQUEST_STATUS_EXPIRED => get_string('statusexpired', 'tool_dataprivacy'),
+            api::DATAREQUEST_STATUS_CANCELLED => get_string('statuscancelled', 'tool_dataprivacy'),
+            api::DATAREQUEST_STATUS_REJECTED => get_string('statusrejected', 'tool_dataprivacy'),
+            api::DATAREQUEST_STATUS_DELETED => get_string('statusdeleted', 'tool_dataprivacy'),
+        ];
+    }
+
+    /**
+     * Retrieves the human-readable value of a data request creation method.
+     *
+     * @param int $creation The request creation method.
+     * @return string
+     * @throws moodle_exception
+     */
+    public static function get_request_creation_method_string($creation) {
+        $creationmethods = self::get_request_creation_methods();
+        if (!isset($creationmethods[$creation])) {
+            throw new moodle_exception('errorinvalidrequestcreationmethod', 'tool_dataprivacy');
+        }
+
+        return $creationmethods[$creation];
+    }
+
+    /**
+     * Returns the key value-pairs of request creation method code and string value.
+     *
+     * @return array
+     */
+    public static function get_request_creation_methods() {
+        return [
+            data_request::DATAREQUEST_CREATION_MANUAL => get_string('creationmanual', 'tool_dataprivacy'),
+            data_request::DATAREQUEST_CREATION_AUTO => get_string('creationauto', 'tool_dataprivacy'),
+        ];
+    }
+
+    /**
+     * Get the users that a user can make data request for.
+     *
+     * E.g. User having a parent role and has the 'tool/dataprivacy:makedatarequestsforchildren' capability.
+     * @param int $userid The user's ID.
+     * @return array
+     */
+    public static function get_children_of_user($userid) {
+        global $DB;
+
+        // Get users that the user has role assignments to.
+        $userfieldsapi = \core_user\fields::for_name();
+        $allusernames = $userfieldsapi->get_sql('u', false, '', '', false)->selects;
+        $sql = "SELECT u.id, $allusernames
+                  FROM {role_assignments} ra, {context} c, {user} u
+                 WHERE ra.userid = :userid
+                       AND ra.contextid = c.id
+                       AND c.instanceid = u.id
+                       AND c.contextlevel = :contextlevel";
+        $params = [
+            'userid' => $userid,
+            'contextlevel' => CONTEXT_USER
+        ];
+
+        // The final list of users that we will return.
+        $finalresults = [];
+
+        // Our prospective list of users.
+        if ($candidates = $DB->get_records_sql($sql, $params)) {
+            foreach ($candidates as $key => $child) {
+                $childcontext = \context_user::instance($child->id);
+                if (has_capability('tool/dataprivacy:makedatarequestsforchildren', $childcontext, $userid)) {
+                    $finalresults[$key] = $child;
+                }
+            }
+        }
+        return $finalresults;
+    }
+
+    /**
+     * Get options for the data requests filter.
+     *
+     * @return array
+     * @throws coding_exception
+     */
+    public static function get_request_filter_options() {
+        $filters = [
+            self::FILTER_TYPE => (object)[
+                'name' => get_string('requesttype', 'tool_dataprivacy'),
+                'options' => self::get_request_types_short()
+            ],
+            self::FILTER_STATUS => (object)[
+                'name' => get_string('requeststatus', 'tool_dataprivacy'),
+                'options' => self::get_request_statuses()
+            ],
+            self::FILTER_CREATION => (object)[
+                'name' => get_string('requestcreation', 'tool_dataprivacy'),
+                'options' => self::get_request_creation_methods()
+            ],
+        ];
+        $options = [];
+        foreach ($filters as $category => $filtercategory) {
+            foreach ($filtercategory->options as $key => $name) {
+                $option = (object)[
+                    'category' => $filtercategory->name,
+                    'name' => $name
+                ];
+                $options["{$category}:{$key}"] = get_string('filteroption', 'tool_dataprivacy', $option);
+            }
+        }
+        return $options;
+    }
+}

admin/tool/dataprivacy/classes/manager_observer.php

@@ -0,0 +1,76 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class \tool_dataprivacy\manager_observer.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Marina Glancy
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy;
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * A failure observer for the \core_privacy\manager.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Marina Glancy
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class manager_observer implements \core_privacy\manager_observer {
+    /**
+     * Notifies all DPOs that an exception occurred.
+     *
+     * @param \Throwable $e
+     * @param string $component
+     * @param string $interface
+     * @param string $methodname
+     * @param array $params
+     */
+    public function handle_component_failure($e, $component, $interface, $methodname, array $params) {
+        // Get the list of the site Data Protection Officers.
+        $dpos = api::get_site_dpos();
+
+        $messagesubject = get_string('exceptionnotificationsubject', 'tool_dataprivacy');
+        $a = (object)[
+            'fullmethodname' => \core_privacy\manager::get_provider_classname_for_component($component) . '::' . $methodname,
+            'component' => $component,
+            'message' => $e->getMessage(),
+            'backtrace' => $e->getTraceAsString()
+        ];
+        $messagebody = get_string('exceptionnotificationbody', 'tool_dataprivacy', $a);
+
+        // Email the data request to the Data Protection Officer(s)/Admin(s).
+        foreach ($dpos as $dpo) {
+            $message = new \core\message\message();
+            $message->courseid          = SITEID;
+            $message->component         = 'tool_dataprivacy';
+            $message->name              = 'notifyexceptions';
+            $message->userfrom          = \core_user::get_noreply_user();
+            $message->subject           = $messagesubject;
+            $message->fullmessageformat = FORMAT_HTML;
+            $message->notification      = 1;
+            $message->userto            = $dpo;
+            $message->fullmessagehtml   = $messagebody;
+            $message->fullmessage       = html_to_text($messagebody);
+
+            // Send message.
+            message_send($message);
+        }
+    }
+}

admin/tool/dataprivacy/classes/metadata_registry.php

@@ -0,0 +1,183 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class containing helper methods for processing data requests.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Adrian Greeve
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy;
+
+use core_privacy\local\metadata\types\type;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Class containing helper methods for processing data requests.
+ *
+ * @copyright  2018 Adrian Greeve
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class metadata_registry {
+
+    /**
+     * Returns plugin types / plugins and the user data that it stores in a format that can be sent to a template.
+     *
+     * @return array An array with all of the plugin types / plugins and the user data they store.
+     */
+    public function get_registry_metadata() {
+        $manager = new \core_privacy\manager();
+        $manager->set_observer(new \tool_dataprivacy\manager_observer());
+
+        $pluginman = \core_plugin_manager::instance();
+        $contributedplugins = $this->get_contrib_list();
+        $metadata = $manager->get_metadata_for_components();
+        $fullyrichtree = $this->get_full_component_list();
+        foreach ($fullyrichtree as $branch => $leaves) {
+            $plugintype = $leaves['plugin_type'];
+            $plugins = array_map(function($component) use ($manager, $metadata, $contributedplugins, $plugintype, $pluginman) {
+                // Use the plugin name for the plugins, ignore for core subsystems.
+                $internaldata = ($plugintype == 'core') ? ['component' => $component] :
+                        ['component' => $pluginman->plugin_name($component)];
+                $internaldata['raw_component'] = $component;
+                if ($manager->component_is_compliant($component)) {
+                    $internaldata['compliant'] = true;
+                    if (isset($metadata[$component])) {
+                        $collection = $metadata[$component]->get_collection();
+                        $internaldata = $this->format_metadata($collection, $component, $internaldata);
+                    } else if ($manager->is_empty_subsystem($component)) {
+                        // This is an unused subsystem.
+                        // Use the generic string.
+                        $internaldata['nullprovider'] = get_string('privacy:subsystem:empty', 'core_privacy');
+                    } else {
+                        // Call get_reason for null provider.
+                        $internaldata['nullprovider'] = get_string($manager->get_null_provider_reason($component), $component);
+                    }
+                } else {
+                    $internaldata['compliant'] = false;
+                }
+                // Check to see if we are an external plugin.
+                // Plugin names can contain _ characters, limit to 2 to just remove initial plugintype.
+                $componentshortname = explode('_', $component, 2);
+                $shortname = array_pop($componentshortname);
+                if (isset($contributedplugins[$plugintype][$shortname])) {
+                    $internaldata['external'] = true;
+                }
+
+                // Additional interface checks.
+                if (!$manager->is_empty_subsystem($component)) {
+                    $classname = $manager->get_provider_classname_for_component($component);
+                    if (class_exists($classname)) {
+                        $componentclass = new $classname();
+                        // Check if the interface is deprecated.
+                        if ($componentclass instanceof \core_privacy\local\deprecated) {
+                            $internaldata['deprecated'] = true;
+                        }
+
+                        // Check that the core_userlist_provider is implemented for all user data providers.
+                        if ($componentclass instanceof \core_privacy\local\request\core_user_data_provider
+                                && !$componentclass instanceof \core_privacy\local\request\core_userlist_provider) {
+                            $internaldata['userlistnoncompliance'] = true;
+                        }
+
+                        // Check that any type of userlist_provider is implemented for all shared data providers.
+                        if ($componentclass instanceof \core_privacy\local\request\shared_data_provider
+                                && !$componentclass instanceof \core_privacy\local\request\userlist_provider) {
+                            $internaldata['userlistnoncompliance'] = true;
+                        }
+                    }
+                }
+
+                return $internaldata;
+            }, $leaves['plugins']);
+            $fullyrichtree[$branch]['plugin_type_raw'] = $plugintype;
+            // We're done using the plugin type. Convert it to a readable string.
+            $fullyrichtree[$branch]['plugin_type'] = $pluginman->plugintype_name($plugintype);
+            $fullyrichtree[$branch]['plugins'] = $plugins;
+        }
+        return $fullyrichtree;
+    }
+
+    /**
+     * Formats the metadata for use with a template.
+     *
+     * @param  type[] $collection The collection associated with the component that we want to expand and format.
+     * @param  string $component The component that we are dealing in
+     * @param  array $internaldata The array to add the formatted metadata to.
+     * @return array The internal data array with the formatted metadata.
+     */
+    protected function format_metadata($collection, $component, $internaldata) {
+        foreach ($collection as $collectioninfo) {
+            $privacyfields = $collectioninfo->get_privacy_fields();
+            $fields = '';
+            if (!empty($privacyfields)) {
+                $fields = array_map(function($key, $field) use ($component) {
+                    return [
+                        'field_name' => $key,
+                        'field_summary' => get_string($field, $component)
+                    ];
+                }, array_keys($privacyfields), $privacyfields);
+            }
+            // Can the metadata types be located somewhere else besides core?
+            $items = explode('\\', get_class($collectioninfo));
+            $type = array_pop($items);
+            $typedata = [
+                'name' => $collectioninfo->get_name(),
+                'type' => $type,
+                'fields' => $fields,
+                'summary' => get_string($collectioninfo->get_summary(), $component)
+            ];
+            if (strpos($type, 'subsystem_link') === 0 || strpos($type, 'plugintype_link') === 0) {
+                $typedata['link'] = true;
+            }
+            $internaldata['metadata'][] = $typedata;
+        }
+        return $internaldata;
+    }
+
+    /**
+     * Return the full list of components.
+     *
+     * @return array An array of plugin types which contain plugin data.
+     */
+    protected function get_full_component_list() {
+        global $CFG;
+
+        $list = \core_component::get_component_list();
+        $list['core']['core'] = "{$CFG->dirroot}/lib";
+        $formattedlist = [];
+        foreach ($list as $plugintype => $plugin) {
+            $formattedlist[] = ['plugin_type' => $plugintype, 'plugins' => array_keys($plugin)];
+        }
+
+        return $formattedlist;
+    }
+
+    /**
+     * Returns a list of contributed plugins installed on the system.
+     *
+     * @return array A list of contributed plugins installed.
+     */
+    protected function get_contrib_list() {
+        return array_map(function($plugins) {
+            return array_filter($plugins, function($plugindata) {
+                return !$plugindata->is_standard();
+            });
+        }, \core_plugin_manager::instance()->get_plugins());
+    }
+}

admin/tool/dataprivacy/classes/output/categories.php

@@ -0,0 +1,88 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Categories renderable.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+use renderable;
+use renderer_base;
+use stdClass;
+use templatable;
+use tool_dataprivacy\external\category_exporter;
+
+/**
+ * Class containing the categories page renderable.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class categories extends crud_element implements renderable, templatable {
+
+    /** @var array $categories All system categories. */
+    protected $categories = [];
+
+    /**
+     * Construct this renderable.
+     *
+     * @param \tool_dataprivacy\category[] $categories
+     */
+    public function __construct($categories) {
+        $this->categories = $categories;
+    }
+
+    /**
+     * Export this data so it can be used as the context for a mustache template.
+     *
+     * @param renderer_base $output
+     * @return stdClass
+     */
+    public function export_for_template(renderer_base $output) {
+        global $PAGE;
+
+        $context = \context_system::instance();
+
+        $PAGE->requires->js_call_amd('tool_dataprivacy/categoriesactions', 'init');
+        $PAGE->requires->js_call_amd('tool_dataprivacy/add_category', 'getInstance', [$context->id]);
+
+        $data = new stdClass();
+
+        // Navigation links.
+        $data->navigation = [];
+        $navigationlinks = $this->get_navigation();
+        foreach ($navigationlinks as $navlink) {
+            $data->navigation[] = $navlink->export_for_template($output);
+        }
+
+        $data->categories = [];
+        foreach ($this->categories as $category) {
+            $exporter = new category_exporter($category, ['context' => \context_system::instance()]);
+            $exportedcategory = $exporter->export($output);
+
+            $actionmenu = $this->action_menu('category', $exportedcategory, $category);
+            $exportedcategory->actions = $actionmenu->export_for_template($output);
+            $data->categories[] = $exportedcategory;
+        }
+
+        return $data;
+    }
+}

admin/tool/dataprivacy/classes/output/crud_element.php

@@ -0,0 +1,91 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Abstract renderer for independent renderable elements.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+use renderable;
+use renderer_base;
+use stdClass;
+use templatable;
+use tool_dataprivacy\external\purpose_exporter;
+use tool_dataprivacy\external\category_exporter;
+
+/**
+ * Abstract renderer for independent renderable elements.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+abstract class crud_element {
+
+    /**
+     * Returns the top navigation buttons.
+     *
+     * @return \action_link[]
+     */
+    final protected function get_navigation() {
+        $back = new \action_link(
+            new \moodle_url('/admin/tool/dataprivacy/dataregistry.php'),
+            get_string('back'),
+            null,
+            ['class' => 'btn btn-primary']
+        );
+        return [$back];
+    }
+
+    /**
+     * Adds an action menu for the provided element
+     *
+     * @param string $elementname 'purpose' or 'category'.
+     * @param \stdClass $exported
+     * @param \core\persistent $persistent
+     * @return \action_menu
+     */
+    final protected function action_menu($elementname, $exported, $persistent) {
+
+        // Just in case, we are doing funny stuff below.
+        $elementname = clean_param($elementname, PARAM_ALPHA);
+
+        // Actions.
+        $actionmenu = new \action_menu();
+        $actionmenu->set_menu_trigger(get_string('actions'));
+        $actionmenu->set_owner_selector($elementname . '-' . $exported->id . '-actions');
+
+        $url = new \moodle_url('/admin/tool/dataprivacy/edit' . $elementname . '.php',
+            ['id' => $exported->id]);
+        $link = new \action_menu_link_secondary($url, new \pix_icon('t/edit',
+            get_string('edit')), get_string('edit'));
+        $actionmenu->add($link);
+
+        if (!$persistent->is_used()) {
+            $url = new \moodle_url('#');
+            $attrs = ['data-id' => $exported->id, 'data-action' => 'delete' . $elementname, 'data-name' => $exported->name];
+            $link = new \action_menu_link_secondary($url, new \pix_icon('t/delete',
+                get_string('delete')), get_string('delete'), $attrs);
+            $actionmenu->add($link);
+        }
+
+        return $actionmenu;
+    }
+}

admin/tool/dataprivacy/classes/output/data_deletion_page.php

@@ -0,0 +1,94 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class containing data for a user's data requests.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+use coding_exception;
+use moodle_exception;
+use moodle_url;
+use renderable;
+use renderer_base;
+use single_select;
+use stdClass;
+use templatable;
+use tool_dataprivacy\data_request;
+use tool_dataprivacy\local\helper;
+
+/**
+ * Class containing data for a user's data requests.
+ *
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class data_deletion_page implements renderable, templatable {
+
+    /** @var data_request[] $requests List of data requests. */
+    protected $filter = null;
+
+    /** @var data_request[] $requests List of data requests. */
+    protected $expiredcontextstable = [];
+
+    /**
+     * Construct this renderable.
+     *
+     * @param \tool_dataprivacy\data_request[] $filter
+     * @param expired_contexts_table $expiredcontextstable
+     */
+    public function __construct($filter, expired_contexts_table $expiredcontextstable) {
+        $this->filter = $filter;
+        $this->expiredcontextstable = $expiredcontextstable;
+    }
+
+    /**
+     * Export this data so it can be used as the context for a mustache template.
+     *
+     * @param renderer_base $output
+     * @return stdClass
+     * @throws coding_exception
+     * @throws moodle_exception
+     */
+    public function export_for_template(renderer_base $output) {
+        $data = new stdClass();
+
+        $url = new moodle_url('/admin/tool/dataprivacy/datadeletion.php');
+        $options = [
+            CONTEXT_USER => get_string('user'),
+            CONTEXT_COURSE => get_string('course'),
+            CONTEXT_MODULE => get_string('activitiesandresources', 'tool_dataprivacy'),
+            CONTEXT_BLOCK => get_string('blocks'),
+        ];
+        $filterselector = new single_select($url, 'filter', $options, $this->filter, null);
+        $data->filter = $filterselector->export_for_template($output);
+
+        ob_start();
+        $this->expiredcontextstable->out(helper::DEFAULT_PAGE_SIZE, true);
+        $expiredcontexts = ob_get_contents();
+        ob_end_clean();
+        $data->expiredcontexts = $expiredcontexts;
+
+        $data->existingcontexts = $this->expiredcontextstable->rawdata ? true : false;
+
+        return $data;
+    }
+}

admin/tool/dataprivacy/classes/output/data_registry_compliance_page.php

@@ -0,0 +1,60 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Contains the data registry compliance renderable.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Adrian Greeve
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+use renderable;
+use renderer_base;
+use templatable;
+
+/**
+ * Class containing the data registry compliance renderable
+ *
+ * @copyright  2018 Adrian Greeve
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class data_registry_compliance_page implements renderable, templatable {
+
+    /** @var array meta-data to be displayed about the system. */
+    protected $metadata;
+
+    /**
+     * Constructor.
+     *
+     * @param array $metadata
+     */
+    public function __construct($metadata) {
+        $this->metadata = $metadata;
+    }
+
+    /**
+     * Export this data so it can be used as the context for a mustache template.
+     *
+     * @param renderer_base $output
+     * @return stdClass
+     */
+    public function export_for_template(renderer_base $output) {
+        return ['types' => $this->metadata];
+    }
+}

admin/tool/dataprivacy/classes/output/data_registry_page.php

@@ -0,0 +1,475 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Data registry renderable.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+use renderable;
+use renderer_base;
+use stdClass;
+use templatable;
+use tool_dataprivacy\data_registry;
+
+require_once($CFG->dirroot . '/' . $CFG->admin . '/tool/dataprivacy/lib.php');
+require_once($CFG->libdir . '/blocklib.php');
+
+/**
+ * Class containing the data registry renderable
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class data_registry_page implements renderable, templatable {
+
+    /**
+     * @var int
+     */
+    private $defaultcontextlevel;
+
+    /**
+     * @var int
+     */
+    private $defaultcontextid;
+
+    /**
+     * Constructor.
+     *
+     * @param int $defaultcontextlevel
+     * @param int $defaultcontextid
+     * @return null
+     */
+    public function __construct($defaultcontextlevel = false, $defaultcontextid = false) {
+        $this->defaultcontextlevel = $defaultcontextlevel;
+        $this->defaultcontextid = $defaultcontextid;
+    }
+
+    /**
+     * Export this data so it can be used as the context for a mustache template.
+     *
+     * @param renderer_base $output
+     * @return stdClass
+     */
+    public function export_for_template(renderer_base $output) {
+        global $PAGE;
+
+        $params = [\context_system::instance()->id, $this->defaultcontextlevel, $this->defaultcontextid];
+        $PAGE->requires->js_call_amd('tool_dataprivacy/data_registry', 'init', $params);
+
+        $data = new stdClass();
+        $defaultsbutton = new \action_link(
+            new \moodle_url('/admin/tool/dataprivacy/defaults.php'),
+            get_string('setdefaults', 'tool_dataprivacy'),
+            null,
+            ['class' => 'btn btn-primary']
+        );
+        $data->defaultsbutton = $defaultsbutton->export_for_template($output);
+
+        $actionmenu = new \action_menu();
+        $actionmenu->set_menu_trigger(get_string('edit'), 'btn btn-primary');
+        $actionmenu->set_owner_selector('dataregistry-actions');
+
+        $url = new \moodle_url('/admin/tool/dataprivacy/categories.php');
+        $categories = new \action_menu_link_secondary($url, null, get_string('categories', 'tool_dataprivacy'));
+        $actionmenu->add($categories);
+
+        $url = new \moodle_url('/admin/tool/dataprivacy/purposes.php');
+        $purposes = new \action_menu_link_secondary($url, null, get_string('purposes', 'tool_dataprivacy'));
+        $actionmenu->add($purposes);
+
+        $data->actions = $actionmenu->export_for_template($output);
+
+        if (!data_registry::defaults_set()) {
+            $data->info = (object)[
+                    'message' => get_string('dataregistryinfo', 'tool_dataprivacy'),
+                    'announce' => 1
+            ];
+            $data->nosystemdefaults = (object)[
+                'message' => get_string('nosystemdefaults', 'tool_dataprivacy'),
+                'announce' => 1
+            ];
+        }
+
+        $data->tree = $this->get_default_tree_structure();
+
+        return $data;
+    }
+
+    /**
+     * Returns the tree default structure.
+     *
+     * @return array
+     */
+    private function get_default_tree_structure() {
+
+        $frontpage = \context_course::instance(SITEID);
+
+        $categorybranches = $this->get_all_category_branches();
+
+        $elements = [
+            'text' => get_string('contextlevelname' . CONTEXT_SYSTEM, 'tool_dataprivacy'),
+            'contextlevel' => CONTEXT_SYSTEM,
+            'branches' => [
+                [
+                    'text' => get_string('user'),
+                    'contextlevel' => CONTEXT_USER,
+                ], [
+                    'text' => get_string('categories'),
+                    'branches' => $categorybranches,
+                    'expandelement' => 'category',
+                ], [
+                    'text' => get_string('frontpagecourse', 'tool_dataprivacy'),
+                    'contextid' => $frontpage->id,
+                    'branches' => [
+                        [
+                            'text' => get_string('activitiesandresources', 'tool_dataprivacy'),
+                            'expandcontextid' => $frontpage->id,
+                            'expandelement' => 'module',
+                            'expanded' => 0,
+                        ], [
+                            'text' => get_string('blocks'),
+                            'expandcontextid' => $frontpage->id,
+                            'expandelement' => 'block',
+                            'expanded' => 0,
+                        ],
+                    ]
+                ]
+            ]
+        ];
+
+        // Returned as an array to follow a common array format.
+        return [self::complete($elements, $this->defaultcontextlevel, $this->defaultcontextid)];
+    }
+
+    /**
+     * Returns the hierarchy of system course categories.
+     *
+     * @return array
+     */
+    private function get_all_category_branches() {
+
+        $categories = data_registry::get_site_categories();
+
+        $categoriesbranch = [];
+        while (count($categories) > 0) {
+            foreach ($categories as $key => $category) {
+
+                $context = \context_coursecat::instance($category->id);
+                $newnode = [
+                    'text' => shorten_text(format_string($category->name, true, ['context' => $context])),
+                    'categoryid' => $category->id,
+                    'contextid' => $context->id,
+                ];
+                if ($category->coursecount > 0) {
+                    $newnode['branches'] = [
+                        [
+                            'text' => get_string('courses'),
+                            'expandcontextid' => $context->id,
+                            'expandelement' => 'course',
+                            'expanded' => 0,
+                        ]
+                    ];
+                }
+
+                $added = false;
+                if ($category->parent == 0) {
+                    // New categories root-level node.
+                    $categoriesbranch[] = $newnode;
+                    $added = true;
+
+                } else {
+                    // Add the new node under the appropriate parent.
+                    if ($this->add_to_parent_category_branch($category, $newnode, $categoriesbranch)) {
+                        $added = true;
+                    }
+                }
+
+                if ($added) {
+                    unset($categories[$key]);
+                }
+            }
+        }
+
+        return $categoriesbranch;
+    }
+
+    /**
+     * Gets the courses branch for the provided category.
+     *
+     * @param \context $catcontext
+     * @return array
+     */
+    public static function get_courses_branch(\context $catcontext) {
+
+        if ($catcontext->contextlevel !== CONTEXT_COURSECAT) {
+            throw new \coding_exception('A course category context should be provided');
+        }
+
+        $coursecat = \core_course_category::get($catcontext->instanceid);
+        $courses = $coursecat->get_courses();
+
+        $branches = [];
+
+        foreach ($courses as $course) {
+
+            $coursecontext = \context_course::instance($course->id);
+
+            $coursenode = [
+                'text' => shorten_text(format_string($course->shortname, true, ['context' => $coursecontext])),
+                'contextid' => $coursecontext->id,
+                'branches' => [
+                    [
+                        'text' => get_string('activitiesandresources', 'tool_dataprivacy'),
+                        'expandcontextid' => $coursecontext->id,
+                        'expandelement' => 'module',
+                        'expanded' => 0,
+                    ], [
+                        'text' => get_string('blocks'),
+                        'expandcontextid' => $coursecontext->id,
+                        'expandelement' => 'block',
+                        'expanded' => 0,
+                    ],
+                ]
+            ];
+            $branches[] = self::complete($coursenode);
+        }
+
+        return $branches;
+    }
+
+    /**
+     * Gets the modules branch for the provided course.
+     *
+     * @param \context $coursecontext
+     * @return array
+     */
+    public static function get_modules_branch(\context $coursecontext) {
+
+        if ($coursecontext->contextlevel !== CONTEXT_COURSE) {
+            throw new \coding_exception('A course context should be provided');
+        }
+
+        $branches = [];
+
+        // Using the current user.
+        $modinfo = get_fast_modinfo($coursecontext->instanceid);
+        foreach ($modinfo->get_instances() as $moduletype => $instances) {
+            foreach ($instances as $cm) {
+
+                if (!$cm->uservisible) {
+                    continue;
+                }
+
+                $a = (object)[
+                    'instancename' => shorten_text($cm->get_formatted_name()),
+                    'modulename' => get_string('pluginname', 'mod_' . $moduletype),
+                ];
+
+                $text = get_string('moduleinstancename', 'tool_dataprivacy', $a);
+                $branches[] = self::complete([
+                    'text' => $text,
+                    'contextid' => $cm->context->id,
+                ]);
+            }
+        }
+
+        return $branches;
+    }
+
+    /**
+     * Gets the blocks branch for the provided course.
+     *
+     * @param \context $coursecontext
+     * @return null
+     */
+    public static function get_blocks_branch(\context $coursecontext) {
+        global $DB;
+
+        if ($coursecontext->contextlevel !== CONTEXT_COURSE) {
+            throw new \coding_exception('A course context should be provided');
+        }
+
+        $branches = [];
+
+        $children = $coursecontext->get_child_contexts();
+        foreach ($children as $childcontext) {
+
+            if ($childcontext->contextlevel !== CONTEXT_BLOCK) {
+                continue;
+            }
+
+            $blockinstance = block_instance_by_id($childcontext->instanceid);
+            $displayname = shorten_text(format_string($blockinstance->get_title(), true, ['context' => $childcontext]));
+            $branches[] = self::complete([
+                'text' => $displayname,
+                'contextid' => $childcontext->id,
+            ]);
+
+        }
+
+        return $branches;
+    }
+
+    /**
+     * Adds the provided category to the categories branch.
+     *
+     * @param stdClass $category
+     * @param array $newnode
+     * @param array $categoriesbranch
+     * @return bool
+     */
+    private function add_to_parent_category_branch($category, $newnode, &$categoriesbranch) {
+
+        foreach ($categoriesbranch as $key => $branch) {
+            if (!empty($branch['categoryid']) && $branch['categoryid'] == $category->parent) {
+                // It may be empty (if it does not contain courses and this is the first child cat).
+                if (!isset($categoriesbranch[$key]['branches'])) {
+                    $categoriesbranch[$key]['branches'] = [];
+                }
+                $categoriesbranch[$key]['branches'][] = $newnode;
+                return true;
+            }
+            if (!empty($branch['branches'])) {
+                $parent = $this->add_to_parent_category_branch($category, $newnode, $categoriesbranch[$key]['branches']);
+                if ($parent) {
+                    return true;
+                }
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Completes tree nodes with default values.
+     *
+     * @param array $node
+     * @param int|false $currentcontextlevel
+     * @param int|false $currentcontextid
+     * @return array
+     */
+    private static function complete($node, $currentcontextlevel = false, $currentcontextid = false) {
+        if (!isset($node['active'])) {
+            if ($currentcontextlevel && !empty($node['contextlevel']) &&
+                    $currentcontextlevel == $node['contextlevel'] &&
+                    empty($currentcontextid)) {
+                // This is the active context level, we also checked that there
+                // is no default contextid set.
+                $node['active'] = true;
+            } else if ($currentcontextid && !empty($node['contextid']) &&
+                    $currentcontextid == $node['contextid']) {
+                $node['active'] = true;
+            } else {
+                $node['active'] = null;
+            }
+        }
+
+        if (!isset($node['branches'])) {
+            $node['branches'] = [];
+        } else {
+            foreach ($node['branches'] as $key => $childnode) {
+                $node['branches'][$key] = self::complete($childnode, $currentcontextlevel, $currentcontextid);
+            }
+        }
+
+        if (!isset($node['expandelement'])) {
+            $node['expandelement'] = null;
+        }
+
+        if (!isset($node['expandcontextid'])) {
+            $node['expandcontextid'] = null;
+        }
+
+        if (!isset($node['contextid'])) {
+            $node['contextid'] = null;
+        }
+
+        if (!isset($node['contextlevel'])) {
+            $node['contextlevel'] = null;
+        }
+
+        if (!isset($node['expanded'])) {
+            if (!empty($node['branches'])) {
+                $node['expanded'] = 1;
+            } else {
+                $node['expanded'] = 0;
+            }
+        }
+        return $node;
+    }
+
+    /**
+     * From a list of purpose persistents to a list of id => name purposes.
+     *
+     * @param \tool_dataprivacy\purpose[] $purposes
+     * @param bool $includenotset
+     * @param bool $includeinherit
+     * @return string[]
+     */
+    public static function purpose_options($purposes, $includenotset = true, $includeinherit = true) {
+        $options = self::base_options($includenotset, $includeinherit);
+        foreach ($purposes as $purpose) {
+            $options[$purpose->get('id')] = $purpose->get('name');
+        }
+
+        return $options;
+    }
+
+    /**
+     * From a list of category persistents to a list of id => name categories.
+     *
+     * @param \tool_dataprivacy\category[] $categories
+     * @param bool $includenotset
+     * @param bool $includeinherit
+     * @return string[]
+     */
+    public static function category_options($categories, $includenotset = true, $includeinherit = true) {
+        $options = self::base_options($includenotset, $includeinherit);
+        foreach ($categories as $category) {
+            $options[$category->get('id')] = $category->get('name');
+        }
+
+        return $options;
+    }
+
+    /**
+     * Base not set and inherit options.
+     *
+     * @param bool $includenotset
+     * @param bool $includeinherit
+     * @return array
+     */
+    private static function base_options($includenotset = true, $includeinherit = true) {
+
+        $options = [];
+
+        if ($includenotset) {
+            $options[\tool_dataprivacy\context_instance::NOTSET] = get_string('notset', 'tool_dataprivacy');
+        }
+
+        if ($includeinherit) {
+            $options[\tool_dataprivacy\context_instance::INHERIT] = get_string('inherit', 'tool_dataprivacy');
+        }
+
+        return $options;
+    }
+}

admin/tool/dataprivacy/classes/output/data_requests_page.php

@@ -0,0 +1,96 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class containing data for a user's data requests.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+use coding_exception;
+use dml_exception;
+use moodle_exception;
+use moodle_url;
+use renderable;
+use renderer_base;
+use single_select;
+use stdClass;
+use templatable;
+use tool_dataprivacy\api;
+use tool_dataprivacy\local\helper;
+
+/**
+ * Class containing data for a user's data requests.
+ *
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class data_requests_page implements renderable, templatable {
+
+    /** @var data_requests_table $table The data requests table. */
+    protected $table;
+
+    /** @var int[] $filters The applied filters. */
+    protected $filters = [];
+
+    /**
+     * Construct this renderable.
+     *
+     * @param data_requests_table $table The data requests table.
+     * @param int[] $filters The applied filters.
+     */
+    public function __construct($table, $filters) {
+        $this->table = $table;
+        $this->filters = $filters;
+    }
+
+    /**
+     * Export this data so it can be used as the context for a mustache template.
+     *
+     * @param renderer_base $output
+     * @return stdClass
+     * @throws coding_exception
+     * @throws dml_exception
+     * @throws moodle_exception
+     */
+    public function export_for_template(renderer_base $output) {
+        $data = new stdClass();
+        $data->newdatarequesturl = new moodle_url('/admin/tool/dataprivacy/createdatarequest.php');
+        $data->newdatarequesturl->param('manage', true);
+
+        if (!is_https()) {
+            $httpwarningmessage = get_string('httpwarning', 'tool_dataprivacy');
+            $data->httpsite = array('message' => $httpwarningmessage, 'announce' => 1);
+        }
+
+        $url = new moodle_url('/admin/tool/dataprivacy/datarequests.php');
+        $filteroptions = helper::get_request_filter_options();
+        $filter = new request_filter($filteroptions, $this->filters, $url);
+        $data->filter = $filter->export_for_template($output);
+
+        ob_start();
+        $this->table->out($this->table->get_requests_per_page(), true);
+        $requests = ob_get_contents();
+        ob_end_clean();
+
+        $data->datarequests = $requests;
+        return $data;
+    }
+}

admin/tool/dataprivacy/classes/output/data_requests_table.php

@@ -0,0 +1,453 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Contains the class used for the displaying the data requests table.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta <jun@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->libdir . '/tablelib.php');
+
+use action_menu;
+use action_menu_link_secondary;
+use coding_exception;
+use dml_exception;
+use html_writer;
+use moodle_url;
+use stdClass;
+use table_sql;
+use tool_dataprivacy\api;
+use tool_dataprivacy\external\data_request_exporter;
+
+defined('MOODLE_INTERNAL') || die;
+
+/**
+ * The class for displaying the data requests table.
+ *
+ * @copyright  2018 Jun Pataleta <jun@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class data_requests_table extends table_sql {
+
+    /** @var int The user ID. */
+    protected $userid = 0;
+
+    /** @var int[] The status filters. */
+    protected $statuses = [];
+
+    /** @var int[] The request type filters.  */
+    protected $types = [];
+
+    /** @var bool Whether this table is being rendered for managing data requests. */
+    protected $manage = false;
+
+    /** @var \tool_dataprivacy\data_request[] Array of data request persistents. */
+    protected $datarequests = [];
+
+    /** @var \stdClass[] List of userids and whether they have any ongoing active requests. */
+    protected $ongoingrequests = [];
+
+    /** @var int The number of data request to be displayed per page. */
+    protected $perpage;
+
+    /** @var int[] The available options for the number of data request to be displayed per page. */
+    protected $perpageoptions = [25, 50, 100, 250];
+
+    /** @var int[] The request creation method filters. */
+    protected array $creationmethods = [];
+
+    /**
+     * data_requests_table constructor.
+     *
+     * @param int $userid The user ID
+     * @param int[] $statuses
+     * @param int[] $types
+     * @param int[] $creationmethods
+     * @param bool $manage
+     * @throws coding_exception
+     */
+    public function __construct($userid = 0, $statuses = [], $types = [], $creationmethods = [], $manage = false) {
+        parent::__construct('data-requests-table');
+
+        $this->userid = $userid;
+        $this->statuses = $statuses;
+        $this->types = $types;
+        $this->creationmethods = $creationmethods;
+        $this->manage = $manage;
+
+        $checkboxattrs = [
+            'title' => get_string('selectall'),
+            'data-action' => 'selectall'
+        ];
+
+        $columnheaders = [
+            'select' => html_writer::checkbox('selectall', 1, false, null, $checkboxattrs),
+            'type' => get_string('requesttype', 'tool_dataprivacy'),
+            'userid' => get_string('user', 'tool_dataprivacy'),
+            'timecreated' => get_string('daterequested', 'tool_dataprivacy'),
+            'requestedby' => get_string('requestby', 'tool_dataprivacy'),
+            'status' => get_string('requeststatus', 'tool_dataprivacy'),
+            'comments' => get_string('message', 'tool_dataprivacy'),
+            'actions' => '',
+        ];
+
+        $this->define_columns(array_keys($columnheaders));
+        $this->define_headers(array_values($columnheaders));
+        $this->no_sorting('select', 'actions');
+    }
+
+    /**
+     * The select column.
+     *
+     * @param stdClass $data The row data.
+     * @return string
+     * @throws \moodle_exception
+     * @throws coding_exception
+     */
+    public function col_select($data) {
+        if ($data->status == \tool_dataprivacy\api::DATAREQUEST_STATUS_AWAITING_APPROVAL) {
+            if ($data->type == \tool_dataprivacy\api::DATAREQUEST_TYPE_DELETE
+                && !api::can_create_data_deletion_request_for_other()) {
+                // Don't show checkbox if request's type is delete and user don't have permission.
+                return false;
+            }
+
+            $stringdata = [
+                'username' => $data->foruser->fullname,
+                'requesttype' => \core_text::strtolower($data->typenameshort)
+            ];
+
+            return \html_writer::checkbox('requestids[]', $data->id, false, '',
+                    ['class' => 'selectrequests', 'title' => get_string('selectuserdatarequest',
+                    'tool_dataprivacy', $stringdata)]);
+        }
+    }
+
+    /**
+     * The type column.
+     *
+     * @param stdClass $data The row data.
+     * @return string
+     */
+    public function col_type($data) {
+        if ($this->manage) {
+            return $data->typenameshort;
+        }
+        return $data->typename;
+    }
+
+    /**
+     * The user column.
+     *
+     * @param stdClass $data The row data.
+     * @return mixed
+     */
+    public function col_userid($data) {
+        $user = $data->foruser;
+        return html_writer::link($user->profileurl, $user->fullname, ['title' => get_string('viewprofile')]);
+    }
+
+    /**
+     * The context information column.
+     *
+     * @param stdClass $data The row data.
+     * @return string
+     */
+    public function col_timecreated($data) {
+        return userdate($data->timecreated);
+    }
+
+    /**
+     * The requesting user's column.
+     *
+     * @param stdClass $data The row data.
+     * @return mixed
+     */
+    public function col_requestedby($data) {
+        $user = $data->requestedbyuser;
+        return html_writer::link($user->profileurl, $user->fullname, ['title' => get_string('viewprofile')]);
+    }
+
+    /**
+     * The status column.
+     *
+     * @param stdClass $data The row data.
+     * @return mixed
+     */
+    public function col_status($data) {
+        return html_writer::span($data->statuslabel, 'badge ' . $data->statuslabelclass);
+    }
+
+    /**
+     * The comments column.
+     *
+     * @param stdClass $data The row data.
+     * @return string
+     */
+    public function col_comments($data) {
+        return shorten_text($data->comments, 60);
+    }
+
+    /**
+     * The actions column.
+     *
+     * @param stdClass $data The row data.
+     * @return string
+     */
+    public function col_actions($data) {
+        global $OUTPUT;
+
+        $requestid = $data->id;
+        $status = $data->status;
+        $persistent = $this->datarequests[$requestid];
+
+        // Prepare actions.
+        $actions = [];
+
+        // View action.
+        $actionurl = new moodle_url('#');
+        $actiondata = [
+            'data-action' => 'view',
+            'data-requestid' => $requestid,
+            'data-contextid' => \context_system::instance()->id,
+        ];
+        $actiontext = get_string('viewrequest', 'tool_dataprivacy');
+        $actions[] = new action_menu_link_secondary($actionurl, null, $actiontext, $actiondata);
+
+        switch ($status) {
+            case api::DATAREQUEST_STATUS_PENDING:
+                // Add action to mark a general enquiry request as complete.
+                if ($data->type == api::DATAREQUEST_TYPE_OTHERS) {
+                    $actiondata['data-action'] = 'complete';
+                    $nameemail = (object)[
+                        'name' => $data->foruser->fullname,
+                        'email' => $data->foruser->email
+                    ];
+                    $actiondata['data-requestid'] = $data->id;
+                    $actiondata['data-replytoemail'] = get_string('nameemail', 'tool_dataprivacy', $nameemail);
+                    $actiontext = get_string('markcomplete', 'tool_dataprivacy');
+                    $actions[] = new action_menu_link_secondary($actionurl, null, $actiontext, $actiondata);
+                }
+                break;
+            case api::DATAREQUEST_STATUS_AWAITING_APPROVAL:
+                // Only show "Approve" and "Deny" button for deletion request if current user has permission.
+                if ($persistent->get('type') == api::DATAREQUEST_TYPE_DELETE &&
+                    !api::can_create_data_deletion_request_for_other()) {
+                    break;
+                }
+                // Approve.
+                $actiondata['data-action'] = 'approve';
+
+                if (get_config('tool_dataprivacy', 'allowfiltering') && $data->type == api::DATAREQUEST_TYPE_EXPORT) {
+                    $actiontext = get_string('approverequestall', 'tool_dataprivacy');
+                    $actions[] = new action_menu_link_secondary($actionurl, null, $actiontext, $actiondata);
+
+                    // Approve selected courses.
+                    $actiontext = get_string('filterexportdata', 'tool_dataprivacy');
+                    $actiondata = ['data-action' => 'approve-selected-courses', 'data-requestid' => $requestid,
+                        'data-contextid' => \context_system::instance()->id];
+                    $actions[] = new \action_menu_link_secondary($actionurl, null, $actiontext, $actiondata);
+                } else {
+                    $actiontext = get_string('approverequest', 'tool_dataprivacy');
+                    $actions[] = new action_menu_link_secondary($actionurl, null, $actiontext, $actiondata);
+                }
+
+                // Deny.
+                $actiondata['data-action'] = 'deny';
+                $actiontext = get_string('denyrequest', 'tool_dataprivacy');
+                $actions[] = new action_menu_link_secondary($actionurl, null, $actiontext, $actiondata);
+                break;
+            case api::DATAREQUEST_STATUS_DOWNLOAD_READY:
+                $userid = $data->foruser->id;
+                $usercontext = \context_user::instance($userid, IGNORE_MISSING);
+                // If user has permission to view download link, show relevant action item.
+                if ($usercontext && api::can_download_data_request_for_user($userid, $data->requestedbyuser->id)) {
+                    $actions[] = api::get_download_link($usercontext, $requestid);
+                }
+                break;
+        }
+
+        if ($this->manage) {
+            $canreset = $persistent->is_active() || empty($this->ongoingrequests[$data->foruser->id]->{$data->type});
+            $canreset = $canreset && $persistent->is_resettable();
+            // Prevent re-submmit deletion request if current user don't have permission.
+            $canreset = $canreset && ($persistent->get('type') != api::DATAREQUEST_TYPE_DELETE ||
+                    api::can_create_data_deletion_request_for_other());
+            if ($canreset) {
+                $reseturl = new moodle_url('/admin/tool/dataprivacy/resubmitrequest.php', [
+                        'requestid' => $requestid,
+                    ]);
+                $actiondata = ['data-action' => 'reset', 'data-requestid' => $requestid];
+                $actiontext = get_string('resubmitrequestasnew', 'tool_dataprivacy');
+                $actions[] = new action_menu_link_secondary($reseturl, null, $actiontext, $actiondata);
+            }
+        }
+
+        $actionsmenu = new action_menu($actions);
+        $actionsmenu->set_menu_trigger(get_string('actions'));
+        $actionsmenu->set_owner_selector('request-actions-' . $requestid);
+        $actionsmenu->set_boundary('window');
+
+        return $OUTPUT->render($actionsmenu);
+    }
+
+    /**
+     * Query the database for results to display in the table.
+     *
+     * @param int $pagesize size of page for paginated displayed table.
+     * @param bool $useinitialsbar do you want to use the initials bar.
+     * @throws dml_exception
+     * @throws coding_exception
+     */
+    public function query_db($pagesize, $useinitialsbar = true) {
+        global $PAGE;
+
+        // Set dummy page total until we fetch full result set.
+        $this->pagesize($pagesize, $pagesize + 1);
+
+        $sort = $this->get_sql_sort();
+
+        // Get data requests from the given conditions.
+        $datarequests = api::get_data_requests($this->userid, $this->statuses, $this->types,
+                $this->creationmethods, $sort, $this->get_page_start(), $this->get_page_size());
+
+        // Count data requests from the given conditions.
+        $total = api::get_data_requests_count($this->userid, $this->statuses, $this->types,
+                $this->creationmethods);
+        $this->pagesize($pagesize, $total);
+
+        $this->rawdata = [];
+        $context = \context_system::instance();
+        $renderer = $PAGE->get_renderer('tool_dataprivacy');
+
+        $forusers = [];
+        foreach ($datarequests as $persistent) {
+            $this->datarequests[$persistent->get('id')] = $persistent;
+            $exporter = new data_request_exporter($persistent, ['context' => $context]);
+            $this->rawdata[] = $exporter->export($renderer);
+            $forusers[] = $persistent->get('userid');
+        }
+
+        // Fetch the list of all ongoing requests for the users currently shown.
+        // This is used to determine whether any non-active request can be resubmitted.
+        // There can only be one ongoing request of a type for each user.
+        $this->ongoingrequests = api::find_ongoing_request_types_for_users($forusers);
+
+        // Set initial bars.
+        if ($useinitialsbar) {
+            $this->initialbars($total > $pagesize);
+        }
+    }
+
+    /**
+     * Override default implementation to display a more meaningful information to the user.
+     */
+    public function print_nothing_to_display() {
+        global $OUTPUT;
+        echo $this->render_reset_button();
+        $this->print_initials_bar();
+        if (!empty($this->statuses) || !empty($this->types)) {
+            $message = get_string('nodatarequestsmatchingfilter', 'tool_dataprivacy');
+        } else {
+            $message = get_string('nodatarequests', 'tool_dataprivacy');
+        }
+        echo $OUTPUT->notification($message, 'warning');
+    }
+
+    /**
+     * Override the table's show_hide_link method to prevent the show/hide links from rendering.
+     *
+     * @param string $column the column name, index into various names.
+     * @param int $index numerical index of the column.
+     * @return string HTML fragment.
+     */
+    protected function show_hide_link($column, $index) {
+        return '';
+    }
+
+    /**
+     * Override the table's wrap_html_finish method in order to render the bulk actions and
+     * records per page options.
+     */
+    public function wrap_html_finish() {
+        global $OUTPUT;
+
+        $data = new stdClass();
+        $data->options = [
+            [
+                'value' => 0,
+                'name' => ''
+            ],
+            [
+                'value' => \tool_dataprivacy\api::DATAREQUEST_ACTION_APPROVE,
+                'name' => get_string('approve', 'tool_dataprivacy')
+            ],
+            [
+                'value' => \tool_dataprivacy\api::DATAREQUEST_ACTION_REJECT,
+                'name' => get_string('deny', 'tool_dataprivacy')
+            ]
+        ];
+
+        $perpageoptions = array_combine($this->perpageoptions, $this->perpageoptions);
+        $perpageselect = new \single_select(new moodle_url(''), 'perpage',
+                $perpageoptions, get_user_preferences('tool_dataprivacy_request-perpage'), null, 'selectgroup');
+        $perpageselect->label = get_string('perpage', 'moodle');
+        $data->perpage = $OUTPUT->render($perpageselect);
+
+        echo $OUTPUT->render_from_template('tool_dataprivacy/data_requests_bulk_actions', $data);
+    }
+
+    /**
+     * Set the number of data request records to be displayed per page.
+     *
+     * @param int $perpage The number of data request records.
+     */
+    public function set_requests_per_page(int $perpage) {
+        $this->perpage = $perpage;
+    }
+
+    /**
+     * Get the number of data request records to be displayed per page.
+     *
+     * @return int The number of data request records.
+     */
+    public function get_requests_per_page(): int {
+        return $this->perpage;
+    }
+
+    /**
+     * Set the available options for the number of data request to be displayed per page.
+     *
+     * @param array $perpageoptions The available options for the number of data request to be displayed per page.
+     */
+    public function set_requests_per_page_options(array $perpageoptions) {
+        $this->$perpageoptions = $perpageoptions;
+    }
+
+    /**
+     * Get the available options for the number of data request to be displayed per page.
+     *
+     * @return array The available options for the number of data request to be displayed per page.
+     */
+    public function get_requests_per_page_options(): array {
+        return $this->perpageoptions;
+    }
+}

admin/tool/dataprivacy/classes/output/defaults_page.php

@@ -0,0 +1,178 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class containing data for the data registry defaults.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+use action_menu_link_primary;
+use coding_exception;
+use moodle_exception;
+use moodle_url;
+use renderable;
+use renderer_base;
+use stdClass;
+use templatable;
+use tool_dataprivacy\data_registry;
+use tool_dataprivacy\external\category_exporter;
+use tool_dataprivacy\external\purpose_exporter;
+
+/**
+ * Class containing data for the data registry defaults.
+ *
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class defaults_page implements renderable, templatable {
+
+    /** @var int $mode The display mode. */
+    protected $mode = null;
+
+    /** @var int $category The default category for the given mode. */
+    protected $category = null;
+
+    /** @var int $purpose The default purpose for the given mode. */
+    protected $purpose = null;
+
+    /** @var stdClass[] $otherdefaults Other defaults for the given mode. */
+    protected $otherdefaults = [];
+
+    /** @var bool $canedit Whether editing is allowed. */
+    protected $canedit = false;
+
+    /**
+     * Construct this renderable.
+     *
+     * @param int $mode The display mode.
+     * @param int $category The default category for the given mode.
+     * @param int $purpose The default purpose for the given mode.
+     * @param stdClass[] $otherdefaults Other defaults for the given mode.
+     * @param bool $canedit Whether editing is allowed.
+     */
+    public function __construct($mode, $category, $purpose, $otherdefaults = [], $canedit = false) {
+        $this->mode = $mode;
+        $this->category = $category;
+        $this->purpose = $purpose;
+        $this->otherdefaults = $otherdefaults;
+        $this->canedit = $canedit;
+    }
+
+    /**
+     * Export this data so it can be used as the context for a mustache template.
+     *
+     * @param renderer_base $output
+     * @return stdClass
+     * @throws coding_exception
+     * @throws moodle_exception
+     */
+    public function export_for_template(renderer_base $output) {
+        $data = new stdClass();
+
+        // Set tab URLs.
+        $coursecaturl = new moodle_url('/admin/tool/dataprivacy/defaults.php', ['mode' => CONTEXT_COURSECAT]);
+        $courseurl = new moodle_url('/admin/tool/dataprivacy/defaults.php', ['mode' => CONTEXT_COURSE]);
+        $moduleurl = new moodle_url('/admin/tool/dataprivacy/defaults.php', ['mode' => CONTEXT_MODULE]);
+        $blockurl = new moodle_url('/admin/tool/dataprivacy/defaults.php', ['mode' => CONTEXT_BLOCK]);
+        $data->coursecaturl = $coursecaturl;
+        $data->courseurl = $courseurl;
+        $data->moduleurl = $moduleurl;
+        $data->blockurl = $blockurl;
+
+        // Set display mode.
+        switch ($this->mode) {
+            case CONTEXT_COURSECAT:
+                $data->modecoursecat = true;
+                break;
+            case CONTEXT_COURSE:
+                $data->modecourse = true;
+                break;
+            case CONTEXT_MODULE:
+                $data->modemodule = true;
+                break;
+            case CONTEXT_BLOCK:
+                $data->modeblock = true;
+                break;
+            default:
+                $data->modecoursecat = true;
+                break;
+        }
+
+        // Set config variables.
+        $configname = \context_helper::get_class_for_level($this->mode);
+        list($purposevar, $categoryvar) = data_registry::var_names_from_context($configname);
+        $data->categoryvar = $categoryvar;
+        $data->purposevar = $purposevar;
+
+        // Set default category.
+        $data->categoryid = $this->category;
+        $data->category = category_exporter::get_name($this->category);
+
+        // Set default purpose.
+        $data->purposeid = $this->purpose;
+        $data->purpose = purpose_exporter::get_name($this->purpose);
+
+        // Set other defaults.
+        $otherdefaults = [];
+        $url = new moodle_url('#');
+        foreach ($this->otherdefaults as $pluginname => $values) {
+            $defaults = [
+                'name' => $values->name,
+                'category' => category_exporter::get_name($values->category),
+                'purpose' => purpose_exporter::get_name($values->purpose),
+            ];
+            if ($this->canedit) {
+                $actions = [];
+                // Edit link.
+                $editattrs = [
+                    'data-action' => 'edit-activity-defaults',
+                    'data-contextlevel' => $this->mode,
+                    'data-activityname' => $pluginname,
+                    'data-category' => $values->category,
+                    'data-purpose' => $values->purpose,
+                ];
+                $editlink = new action_menu_link_primary($url, new \pix_icon('t/edit', get_string('edit')),
+                    get_string('edit'), $editattrs);
+                $actions[] = $editlink->export_for_template($output);
+
+                // Delete link.
+                $deleteattrs = [
+                    'data-action' => 'delete-activity-defaults',
+                    'data-contextlevel' => $this->mode,
+                    'data-activityname' => $pluginname,
+                    'data-activitydisplayname' => $values->name,
+                ];
+                $deletelink = new action_menu_link_primary($url, new \pix_icon('t/delete', get_string('delete')),
+                    get_string('delete'), $deleteattrs);
+                $actions[] = $deletelink->export_for_template($output);
+
+                $defaults['actions'] = $actions;
+            }
+            $otherdefaults[] = (object)$defaults;
+        }
+        $data->otherdefaults = $otherdefaults;
+
+        $data->canedit = $this->canedit;
+        $data->contextlevel = $this->mode;
+
+        return $data;
+    }
+}

admin/tool/dataprivacy/classes/output/expired_contexts_table.php

@@ -0,0 +1,410 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Contains the class used for the displaying the expired contexts table.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta <jun@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->libdir . '/tablelib.php');
+
+use coding_exception;
+use context_helper;
+use dml_exception;
+use Exception;
+use html_writer;
+use pix_icon;
+use stdClass;
+use table_sql;
+use tool_dataprivacy\api;
+use tool_dataprivacy\expired_context;
+use tool_dataprivacy\external\purpose_exporter;
+use tool_dataprivacy\purpose;
+
+defined('MOODLE_INTERNAL') || die;
+
+/**
+ * The class for displaying the expired contexts table.
+ *
+ * @copyright  2018 Jun Pataleta <jun@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class expired_contexts_table extends table_sql {
+
+    /** @var int The context level acting as a filter for this table. */
+    protected $contextlevel = null;
+
+    /**
+     * @var bool $selectall Has the user selected all users on the page? True by default.
+     */
+    protected $selectall = true;
+
+    /** @var purpose[] Array of purposes by their id. */
+    protected $purposes = [];
+
+    /** @var purpose[] Map of context => purpose. */
+    protected $purposemap = [];
+
+    /** @var array List of roles. */
+    protected $roles = [];
+
+    /**
+     * expired_contexts_table constructor.
+     *
+     * @param int|null $contextlevel
+     * @throws coding_exception
+     */
+    public function __construct($contextlevel = null) {
+        parent::__construct('expired-contexts-table');
+
+        $this->contextlevel = $contextlevel;
+
+        $columnheaders = [
+            'name' => get_string('name'),
+            'info' => get_string('info'),
+            'purpose' => get_string('purpose', 'tool_dataprivacy'),
+            'category' => get_string('category', 'tool_dataprivacy'),
+            'retentionperiod' => get_string('retentionperiod', 'tool_dataprivacy'),
+            'tobedeleted' => get_string('tobedeleted', 'tool_dataprivacy'),
+            'timecreated' => get_string('expiry', 'tool_dataprivacy'),
+        ];
+        $checkboxattrs = [
+            'title' => get_string('selectall'),
+            'data-action' => 'selectall'
+        ];
+        $columnheaders['select'] = html_writer::checkbox('selectall', 1, true, null, $checkboxattrs);
+
+        $this->define_columns(array_keys($columnheaders));
+        $this->define_headers(array_values($columnheaders));
+        $this->no_sorting('name');
+        $this->no_sorting('select');
+        $this->no_sorting('info');
+        $this->no_sorting('purpose');
+        $this->no_sorting('category');
+        $this->no_sorting('retentionperiod');
+        $this->no_sorting('tobedeleted');
+
+        // Make this table sorted by first name by default.
+        $this->sortable(true, 'timecreated');
+
+        // We use roles in several places.
+        $this->roles = role_get_names();
+    }
+
+    /**
+     * The context name column.
+     *
+     * @param stdClass $expiredctx The row data.
+     * @return string
+     * @throws coding_exception
+     */
+    public function col_name($expiredctx) {
+        global $OUTPUT;
+        $context = context_helper::instance_by_id($expiredctx->get('contextid'));
+        $parent = $context->get_parent_context();
+        $contextdata = (object)[
+            'name' => $context->get_context_name(false, true),
+            'parent' => $parent->get_context_name(false, true),
+        ];
+        $fullcontexts = $context->get_parent_contexts(true);
+        $contextsinpath = [];
+        foreach ($fullcontexts as $contextinpath) {
+            $contextsinpath[] = $contextinpath->get_context_name(false, true);
+        }
+        $infoicon = new pix_icon('i/info', implode(' / ', array_reverse($contextsinpath)));
+        $infoiconhtml = $OUTPUT->render($infoicon);
+        $name = html_writer::span(get_string('nameandparent', 'tool_dataprivacy', $contextdata), 'mr-1');
+
+        return  $name . $infoiconhtml;
+    }
+
+    /**
+     * The context information column.
+     *
+     * @param stdClass $expiredctx The row data.
+     * @return string
+     * @throws coding_exception
+     */
+    public function col_info($expiredctx) {
+        global $OUTPUT;
+
+        $context = context_helper::instance_by_id($expiredctx->get('contextid'));
+
+        $children = $context->get_child_contexts();
+        if (empty($children)) {
+            return get_string('none');
+        } else {
+            $childnames = [];
+            foreach ($children as $child) {
+                $childnames[] = $child->get_context_name(false, true);
+            }
+            $infoicon = new pix_icon('i/info', implode(', ', $childnames));
+            $infoiconhtml = $OUTPUT->render($infoicon);
+            $name = html_writer::span(get_string('nchildren', 'tool_dataprivacy', count($children)), 'mr-1');
+
+            return  $name . $infoiconhtml;
+        }
+    }
+
+    /**
+     * The category name column.
+     *
+     * @param stdClass $expiredctx The row data.
+     * @return mixed
+     * @throws coding_exception
+     * @throws dml_exception
+     */
+    public function col_category($expiredctx) {
+        $context = context_helper::instance_by_id($expiredctx->get('contextid'));
+        $category = api::get_effective_context_category($context);
+
+        return s($category->get('name'));
+    }
+
+    /**
+     * The purpose column.
+     *
+     * @param stdClass $expiredctx The row data.
+     * @return string
+     * @throws coding_exception
+     */
+    public function col_purpose($expiredctx) {
+        $purpose = $this->get_purpose_for_expiry($expiredctx);
+
+        return s($purpose->get('name'));
+    }
+
+    /**
+     * The retention period column.
+     *
+     * @param stdClass $expiredctx The row data.
+     * @return string
+     */
+    public function col_retentionperiod($expiredctx) {
+        $purpose = $this->get_purpose_for_expiry($expiredctx);
+
+        $expiries = [];
+
+        $expiry = html_writer::tag('dt', get_string('default'), ['class' => 'col-sm-3']);
+        if ($expiredctx->get('defaultexpired')) {
+            $expiries[get_string('default')] = get_string('expiredrolewithretention', 'tool_dataprivacy', (object) [
+                    'retention' => api::format_retention_period(new \DateInterval($purpose->get('retentionperiod'))),
+                ]);
+        } else {
+            $expiries[get_string('default')] = get_string('unexpiredrolewithretention', 'tool_dataprivacy', (object) [
+                    'retention' => api::format_retention_period(new \DateInterval($purpose->get('retentionperiod'))),
+                ]);
+        }
+
+        if (!$expiredctx->is_fully_expired()) {
+            $purposeoverrides = $purpose->get_purpose_overrides();
+
+            foreach ($expiredctx->get('unexpiredroles') as $roleid) {
+                $role = $this->roles[$roleid];
+                $override = $purposeoverrides[$roleid];
+
+                $expiries[$role->localname] = get_string('unexpiredrolewithretention', 'tool_dataprivacy', (object) [
+                        'retention' => api::format_retention_period(new \DateInterval($override->get('retentionperiod'))),
+                    ]);
+            }
+
+            foreach ($expiredctx->get('expiredroles') as $roleid) {
+                $role = $this->roles[$roleid];
+                $override = $purposeoverrides[$roleid];
+
+                $expiries[$role->localname] = get_string('expiredrolewithretention', 'tool_dataprivacy', (object) [
+                        'retention' => api::format_retention_period(new \DateInterval($override->get('retentionperiod'))),
+                    ]);
+            }
+        }
+
+        $output = array_map(function($rolename, $expiry) {
+            $return = html_writer::tag('dt', $rolename, ['class' => 'col-sm-3']);
+            $return .= html_writer::tag('dd', $expiry, ['class' => 'col-sm-9']);
+
+            return $return;
+        }, array_keys($expiries), $expiries);
+
+        return html_writer::tag('dl', implode($output), ['class' => 'row']);
+    }
+
+    /**
+     * The timecreated a.k.a. the context expiry date column.
+     *
+     * @param stdClass $expiredctx The row data.
+     * @return string
+     */
+    public function col_timecreated($expiredctx) {
+        return userdate($expiredctx->get('timecreated'));
+    }
+
+    /**
+     * Generate the select column.
+     *
+     * @param stdClass $expiredctx The row data.
+     * @return string
+     */
+    public function col_select($expiredctx) {
+        $id = $expiredctx->get('id');
+        return html_writer::checkbox('expiredcontext_' . $id, $id, $this->selectall, '', ['class' => 'selectcontext']);
+    }
+
+    /**
+     * Formatting for the 'tobedeleted' column which indicates in a friendlier fashion whose data will be removed.
+     *
+     * @param stdClass $expiredctx The row data.
+     * @return string
+     */
+    public function col_tobedeleted($expiredctx) {
+        if ($expiredctx->is_fully_expired()) {
+            return get_string('defaultexpired', 'tool_dataprivacy');
+        }
+
+        $purpose = $this->get_purpose_for_expiry($expiredctx);
+
+        $a = (object) [];
+
+        $expiredroles = [];
+        foreach ($expiredctx->get('expiredroles') as $roleid) {
+            $expiredroles[] = html_writer::tag('li', $this->roles[$roleid]->localname);
+        }
+        $a->expired = html_writer::tag('ul', implode($expiredroles));
+
+        $unexpiredroles = [];
+        foreach ($expiredctx->get('unexpiredroles') as $roleid) {
+            $unexpiredroles[] = html_writer::tag('li', $this->roles[$roleid]->localname);
+        }
+        $a->unexpired = html_writer::tag('ul', implode($unexpiredroles));
+
+        if ($expiredctx->get('defaultexpired')) {
+            return get_string('defaultexpiredexcept', 'tool_dataprivacy', $a);
+        } else if (empty($unexpiredroles)) {
+            return get_string('defaultunexpired', 'tool_dataprivacy', $a);
+        } else {
+            return get_string('defaultunexpiredwithexceptions', 'tool_dataprivacy', $a);
+        }
+    }
+
+    /**
+     * Query the database for results to display in the table.
+     *
+     * @param int $pagesize size of page for paginated displayed table.
+     * @param bool $useinitialsbar do you want to use the initials bar.
+     * @throws dml_exception
+     * @throws coding_exception
+     */
+    public function query_db($pagesize, $useinitialsbar = true) {
+        // Only count expired contexts that are awaiting confirmation.
+        $total = expired_context::get_record_count_by_contextlevel($this->contextlevel, expired_context::STATUS_EXPIRED);
+        $this->pagesize($pagesize, $total);
+
+        $sort = $this->get_sql_sort();
+        if (empty($sort)) {
+            $sort = 'timecreated';
+        }
+
+        // Only load expired contexts that are awaiting confirmation.
+        $expiredcontexts = expired_context::get_records_by_contextlevel($this->contextlevel, expired_context::STATUS_EXPIRED,
+            $sort, $this->get_page_start(), $this->get_page_size());
+
+        $this->rawdata = [];
+        $contextids = [];
+        foreach ($expiredcontexts as $persistent) {
+            $this->rawdata[] = $persistent;
+            $contextids[] = $persistent->get('contextid');
+        }
+
+        $this->preload_contexts($contextids);
+
+        // Set initial bars.
+        if ($useinitialsbar) {
+            $this->initialbars($total > $pagesize);
+        }
+    }
+
+    /**
+     * Override default implementation to display a more meaningful information to the user.
+     */
+    public function print_nothing_to_display() {
+        global $OUTPUT;
+        echo $this->render_reset_button();
+        $this->print_initials_bar();
+        echo $OUTPUT->notification(get_string('noexpiredcontexts', 'tool_dataprivacy'), 'warning');
+    }
+
+    /**
+     * Override the table's show_hide_link method to prevent the show/hide link for the select column from rendering.
+     *
+     * @param string $column the column name, index into various names.
+     * @param int $index numerical index of the column.
+     * @return string HTML fragment.
+     */
+    protected function show_hide_link($column, $index) {
+        if ($index < 6) {
+            return parent::show_hide_link($column, $index);
+        }
+        return '';
+    }
+
+    /**
+     * Get the purpose for the specified expired context.
+     *
+     * @param   expired_context $expiredcontext
+     * @return  purpose
+     */
+    protected function get_purpose_for_expiry(expired_context $expiredcontext): purpose {
+        $context = context_helper::instance_by_id($expiredcontext->get('contextid'));
+
+        if (empty($this->purposemap[$context->id])) {
+            $purpose = api::get_effective_context_purpose($context);
+            $this->purposemap[$context->id] = $purpose->get('id');
+
+            if (empty($this->purposes[$purpose->get('id')])) {
+                $this->purposes[$purpose->get('id')] = $purpose;
+            }
+        }
+
+        return $this->purposes[$this->purposemap[$context->id]];
+    }
+
+    /**
+     * Preload context records given a set of contextids.
+     *
+     * @param   array   $contextids
+     */
+    protected function preload_contexts(array $contextids) {
+        global $DB;
+
+        if (empty($contextids)) {
+            return;
+        }
+
+        $ctxfields = \context_helper::get_preload_record_columns_sql('ctx');
+        list($insql, $inparams) = $DB->get_in_or_equal($contextids, SQL_PARAMS_NAMED);
+        $sql = "SELECT {$ctxfields} FROM {context} ctx WHERE ctx.id {$insql}";
+        $contextlist = $DB->get_recordset_sql($sql, $inparams);
+        foreach ($contextlist as $contextdata) {
+            \context_helper::preload_from_record($contextdata);
+        }
+        $contextlist->close();
+
+    }
+}

admin/tool/dataprivacy/classes/output/my_data_requests_page.php

@@ -0,0 +1,164 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class containing data for a user's data requests.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+use action_menu;
+use action_menu_link_secondary;
+use coding_exception;
+use context_user;
+use moodle_exception;
+use moodle_url;
+use renderable;
+use renderer_base;
+use stdClass;
+use templatable;
+use tool_dataprivacy\api;
+use tool_dataprivacy\data_request;
+use tool_dataprivacy\external\data_request_exporter;
+
+/**
+ * Class containing data for a user's data requests.
+ *
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class my_data_requests_page implements renderable, templatable {
+
+    /** @var array $requests List of data requests. */
+    protected $requests = [];
+
+    /**
+     * Construct this renderable.
+     *
+     * @param data_request[] $requests
+     */
+    public function __construct($requests) {
+        $this->requests = $requests;
+    }
+
+    /**
+     * Export this data so it can be used as the context for a mustache template.
+     *
+     * @param renderer_base $output
+     * @return stdClass
+     * @throws coding_exception
+     * @throws moodle_exception
+     */
+    public function export_for_template(renderer_base $output) {
+        global $USER;
+
+        $data = new stdClass();
+        $data->newdatarequesturl = new moodle_url('/admin/tool/dataprivacy/createdatarequest.php');
+
+        if (!is_https()) {
+            $httpwarningmessage = get_string('httpwarning', 'tool_dataprivacy');
+            $data->httpsite = array('message' => $httpwarningmessage, 'announce' => 1);
+        }
+
+        $requests = [];
+        foreach ($this->requests as $request) {
+            $requestid = $request->get('id');
+            $status = $request->get('status');
+            $userid = $request->get('userid');
+            $type = $request->get('type');
+
+            $usercontext = context_user::instance($userid, IGNORE_MISSING);
+            if (!$usercontext) {
+                // Use the context system.
+                $outputcontext = \context_system::instance();
+            } else {
+                $outputcontext = $usercontext;
+            }
+
+            $requestexporter = new data_request_exporter($request, ['context' => $outputcontext]);
+            $item = $requestexporter->export($output);
+
+            $self = $request->get('userid') == $USER->id;
+            if (!$self) {
+                // Append user name if it differs from $USER.
+                $a = (object)['typename' => $item->typename, 'user' => $item->foruser->fullname];
+                $item->typename = get_string('requesttypeuser', 'tool_dataprivacy', $a);
+            }
+
+            $candownload = false;
+            $cancancel = true;
+            switch ($status) {
+                case api::DATAREQUEST_STATUS_COMPLETE:
+                    $item->statuslabelclass = 'bg-success text-white';
+                    $item->statuslabel = get_string('statuscomplete', 'tool_dataprivacy');
+                    $cancancel = false;
+                    break;
+                case api::DATAREQUEST_STATUS_DOWNLOAD_READY:
+                    $item->statuslabelclass = 'bg-success text-white';
+                    $item->statuslabel = get_string('statusready', 'tool_dataprivacy');
+                    $cancancel = false;
+                    $candownload = true;
+
+                    if ($usercontext) {
+                        $candownload = api::can_download_data_request_for_user(
+                                $request->get('userid'), $request->get('requestedby'));
+                    }
+                    break;
+                case api::DATAREQUEST_STATUS_DELETED:
+                    $item->statuslabelclass = 'bg-success text-white';
+                    $item->statuslabel = get_string('statusdeleted', 'tool_dataprivacy');
+                    $cancancel = false;
+                    break;
+                case api::DATAREQUEST_STATUS_EXPIRED:
+                    $item->statuslabelclass = 'bg-secondary text-dark';
+                    $item->statuslabel = get_string('statusexpired', 'tool_dataprivacy');
+                    $item->statuslabeltitle = get_string('downloadexpireduser', 'tool_dataprivacy');
+                    $cancancel = false;
+                    break;
+                case api::DATAREQUEST_STATUS_CANCELLED:
+                case api::DATAREQUEST_STATUS_REJECTED:
+                    $cancancel = false;
+                    break;
+            }
+
+            // Prepare actions.
+            $actions = [];
+            if ($cancancel) {
+                $cancelurl = new moodle_url('#');
+                $canceldata = ['data-action' => 'cancel', 'data-requestid' => $requestid];
+                $canceltext = get_string('cancelrequest', 'tool_dataprivacy');
+                $actions[] = new action_menu_link_secondary($cancelurl, null, $canceltext, $canceldata);
+            }
+            if ($candownload && $usercontext) {
+                $actions[] = api::get_download_link($usercontext, $requestid);
+            }
+            if (!empty($actions)) {
+                $actionsmenu = new action_menu($actions);
+                $actionsmenu->set_menu_trigger(get_string('actions'));
+                $actionsmenu->set_owner_selector('request-actions-' . $requestid);
+                $item->actions = $actionsmenu->export_for_template($output);
+            }
+
+            $requests[] = $item;
+        }
+        $data->requests = $requests;
+        return $data;
+    }
+}

admin/tool/dataprivacy/classes/output/purposes.php

@@ -0,0 +1,88 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Purposes renderable.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+use renderable;
+use renderer_base;
+use stdClass;
+use templatable;
+use tool_dataprivacy\external\purpose_exporter;
+
+/**
+ * Class containing the purposes page renderable.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class purposes extends crud_element implements renderable, templatable {
+
+    /** @var array $purposes All system purposes. */
+    protected $purposes = [];
+
+    /**
+     * Construct this renderable.
+     *
+     * @param \tool_dataprivacy\purpose[] $purposes
+     */
+    public function __construct($purposes) {
+        $this->purposes = $purposes;
+    }
+
+    /**
+     * Export this data so it can be used as the context for a mustache template.
+     *
+     * @param renderer_base $output
+     * @return stdClass
+     */
+    public function export_for_template(renderer_base $output) {
+        global $PAGE;
+
+        $context = \context_system::instance();
+
+        $PAGE->requires->js_call_amd('tool_dataprivacy/purposesactions', 'init');
+        $PAGE->requires->js_call_amd('tool_dataprivacy/add_purpose', 'getInstance', [$context->id]);
+
+        $data = new stdClass();
+
+        // Navigation links.
+        $data->navigation = [];
+        $navigationlinks = $this->get_navigation();
+        foreach ($navigationlinks as $navlink) {
+            $data->navigation[] = $navlink->export_for_template($output);
+        }
+
+        $data->purposes = [];
+        foreach ($this->purposes as $purpose) {
+            $exporter = new purpose_exporter($purpose, ['context' => \context_system::instance()]);
+            $exportedpurpose = $exporter->export($output);
+
+            $actionmenu = $this->action_menu('purpose', $exportedpurpose, $purpose);
+            $exportedpurpose->actions = $actionmenu->export_for_template($output);
+            $data->purposes[] = $exportedpurpose;
+        }
+
+        return $data;
+    }
+}

admin/tool/dataprivacy/classes/output/renderer.php

@@ -0,0 +1,149 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Renderer class for tool_dataprivacy
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy\output;
+
+defined('MOODLE_INTERNAL') || die();
+
+use coding_exception;
+use html_writer;
+use moodle_exception;
+use plugin_renderer_base;
+
+/**
+ * Renderer class for tool_dataprivacy.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class renderer extends plugin_renderer_base {
+
+    /**
+     * Render the user's data requests page.
+     *
+     * @param my_data_requests_page $page
+     * @return string html for the page
+     * @throws moodle_exception
+     */
+    public function render_my_data_requests_page(my_data_requests_page $page) {
+        $data = $page->export_for_template($this);
+        return parent::render_from_template('tool_dataprivacy/my_data_requests', $data);
+    }
+
+    /**
+     * Render the contact DPO link.
+     *
+     * @return string The HTML for the link.
+     */
+    public function render_contact_dpo_link() {
+        $params = [
+            'data-action' => 'contactdpo',
+        ];
+        return html_writer::link('#', get_string('contactdataprotectionofficer', 'tool_dataprivacy'), $params);
+    }
+
+    /**
+     * Render the data requests page for the DPO.
+     *
+     * @param data_requests_page $page
+     * @return string html for the page
+     * @throws moodle_exception
+     */
+    public function render_data_requests_page(data_requests_page $page) {
+        $data = $page->export_for_template($this);
+        return parent::render_from_template('tool_dataprivacy/data_requests', $data);
+    }
+
+    /**
+     * Render the data registry.
+     *
+     * @param data_registry_page $page
+     * @return string html for the page
+     * @throws moodle_exception
+     */
+    public function render_data_registry_page(data_registry_page $page) {
+        $data = $page->export_for_template($this);
+        return parent::render_from_template('tool_dataprivacy/data_registry', $data);
+    }
+
+    /**
+     * Render the data compliance registry.
+     *
+     * @param data_registry_compliance_page $page
+     * @return string html for the page
+     * @throws moodle_exception
+     */
+    public function render_data_registry_compliance_page(data_registry_compliance_page $page) {
+        $data = $page->export_for_template($this);
+        return parent::render_from_template('tool_dataprivacy/data_registry_compliance', $data);
+    }
+
+    /**
+     * Render the purposes management page.
+     *
+     * @param purposes $page
+     * @return string html for the page
+     * @throws moodle_exception
+     */
+    public function render_purposes(purposes $page) {
+        $data = $page->export_for_template($this);
+        return parent::render_from_template('tool_dataprivacy/purposes', $data);
+    }
+
+    /**
+     * Render the categories management page.
+     *
+     * @param categories $page
+     * @return string html for the page
+     * @throws moodle_exception
+     */
+    public function render_categories(categories $page) {
+        $data = $page->export_for_template($this);
+        return parent::render_from_template('tool_dataprivacy/categories', $data);
+    }
+
+    /**
+     * Render the review page for the deletion of expired contexts.
+     *
+     * @param data_deletion_page $page
+     * @return string html for the page
+     * @throws moodle_exception
+     */
+    public function render_data_deletion_page(data_deletion_page $page) {
+        $data = $page->export_for_template($this);
+        return parent::render_from_template('tool_dataprivacy/data_deletion', $data);
+    }
+
+    /**
+     * Render the user data retention summary page.
+     *
+     * @param  summary_page $page
+     * @return string html for the page.
+     */
+    public function render_summary_page(summary_page $page) {
+        $data = $page->export_for_template($this);
+        return parent::render_from_template('tool_dataprivacy/summary', $data);
+    }
+}

admin/tool/dataprivacy/classes/output/request_filter.php

@@ -0,0 +1,98 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class containing the filter options data for rendering the autocomplete element for the data requests page.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+
+use moodle_url;
+use renderable;
+use renderer_base;
+use stdClass;
+use templatable;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Class containing the filter options data for rendering the autocomplete element for the data requests page.
+ *
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class request_filter implements renderable, templatable {
+
+    /** @var array $filteroptions The filter options. */
+    protected $filteroptions;
+
+    /** @var array $selectedoptions The list of selected filter option values. */
+    protected $selectedoptions;
+
+    /** @var moodle_url|string $baseurl The url with params needed to call up this page. */
+    protected $baseurl;
+
+    /**
+     * request_filter constructor.
+     *
+     * @param array $filteroptions The filter options.
+     * @param array $selectedoptions The list of selected filter option values.
+     * @param string|moodle_url $baseurl The url with params needed to call up this page.
+     */
+    public function __construct($filteroptions, $selectedoptions, $baseurl = null) {
+        $this->filteroptions = $filteroptions;
+        $this->selectedoptions = $selectedoptions;
+        if (!empty($baseurl)) {
+            $this->baseurl = new moodle_url($baseurl);
+        }
+    }
+
+    /**
+     * Function to export the renderer data in a format that is suitable for a mustache template.
+     *
+     * @param renderer_base $output Used to do a final render of any components that need to be rendered for export.
+     * @return stdClass|array
+     */
+    public function export_for_template(renderer_base $output) {
+        global $PAGE;
+        $data = new stdClass();
+        if (empty($this->baseurl)) {
+            $this->baseurl = $PAGE->url;
+        }
+        $data->action = $this->baseurl->out(false);
+
+        foreach ($this->selectedoptions as $option) {
+            if (!isset($this->filteroptions[$option])) {
+                $this->filteroptions[$option] = $option;
+            }
+        }
+
+        $data->filteroptions = [];
+        foreach ($this->filteroptions as $value => $label) {
+            $selected = in_array($value, $this->selectedoptions);
+            $filteroption = (object)[
+                'value' => $value,
+                'label' => $label
+            ];
+            $filteroption->selected = $selected;
+            $data->filteroptions[] = $filteroption;
+        }
+        return $data;
+    }
+}

admin/tool/dataprivacy/classes/output/summary_page.php

@@ -0,0 +1,132 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Summary page renderable.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Adrian Greeve
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+use renderable;
+use renderer_base;
+use templatable;
+
+
+/**
+ * Class containing the summary page renderable.
+ *
+ * @copyright  2018 Adrian Greeve
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class summary_page implements renderable, templatable {
+
+    /**
+     * Export this data so it can be used as the context for a mustache template.
+     *
+     * @param renderer_base $output
+     * @return array
+     */
+    public function export_for_template(renderer_base $output) {
+        $contextlevels = [
+            'contextlevelname10' => CONTEXT_SYSTEM,
+            'contextlevelname30' => CONTEXT_USER,
+            'contextlevelname40' => CONTEXT_COURSECAT,
+            'contextlevelname50' => CONTEXT_COURSE,
+            'contextlevelname70' => CONTEXT_MODULE,
+            'contextlevelname80' => CONTEXT_BLOCK
+        ];
+
+        $data = [];
+        $context = \context_system::instance();
+
+        foreach ($contextlevels as $levelname => $level) {
+            $classname = \context_helper::get_class_for_level($level);
+            list($purposevar, $categoryvar) = \tool_dataprivacy\data_registry::var_names_from_context($classname);
+            $purposeid = get_config('tool_dataprivacy', $purposevar);
+            $categoryid = get_config('tool_dataprivacy', $categoryvar);
+
+            $section = [];
+            $section['contextname'] = get_string($levelname, 'tool_dataprivacy');
+
+            if (empty($purposeid)) {
+                list($purposeid, $categoryid) =
+                        \tool_dataprivacy\data_registry::get_effective_default_contextlevel_purpose_and_category($level);
+            }
+            if ($purposeid == -1) {
+                $purposeid = 0;
+            }
+            $purpose = new \tool_dataprivacy\purpose($purposeid);
+            $export = new \tool_dataprivacy\external\purpose_exporter($purpose, ['context' => $context]);
+            $purposedata = $export->export($output);
+            $section['purpose'] = $purposedata;
+
+            if (empty($categoryid)) {
+                list($purposeid, $categoryid) =
+                        \tool_dataprivacy\data_registry::get_effective_default_contextlevel_purpose_and_category($level);
+            }
+            if ($categoryid == -1) {
+                $categoryid = 0;
+            }
+            $category = new \tool_dataprivacy\category($categoryid);
+            $export = new \tool_dataprivacy\external\category_exporter($category, ['context' => $context]);
+            $categorydata = $export->export($output);
+            $section['category'] = $categorydata;
+            $data['contexts'][] = $section;
+        }
+
+        // Get activity module plugin info.
+        $pluginmanager = \core_plugin_manager::instance();
+        $modplugins = $pluginmanager->get_enabled_plugins('mod');
+
+        foreach ($modplugins as $name) {
+            $classname = \context_helper::get_class_for_level($contextlevels['contextlevelname70']);
+            list($purposevar, $categoryvar) = \tool_dataprivacy\data_registry::var_names_from_context($classname, $name);
+            $categoryid = get_config('tool_dataprivacy', $categoryvar);
+            $purposeid = get_config('tool_dataprivacy', $purposevar);
+            if ($categoryid === false && $purposeid === false) {
+                // If no purpose and category has been set for this plugin, then there's no need to show this on the list.
+                continue;
+            }
+
+            $section = [];
+            $section['contextname'] = $pluginmanager->plugin_name('mod_' . $name);
+
+            if ($purposeid == -1) {
+                $purposeid = 0;
+            }
+            $purpose = new \tool_dataprivacy\purpose($purposeid);
+            $export = new \tool_dataprivacy\external\purpose_exporter($purpose, ['context' => $context]);
+            $purposedata = $export->export($output);
+            $section['purpose'] = $purposedata;
+
+            if ($categoryid == -1) {
+                $categoryid = 0;
+            }
+            $category = new \tool_dataprivacy\category($categoryid);
+            $export = new \tool_dataprivacy\external\category_exporter($category, ['context' => $context]);
+            $categorydata = $export->export($output);
+            $section['category'] = $categorydata;
+
+            $data['contexts'][] = $section;
+        }
+
+        return $data;
+    }
+}

admin/tool/dataprivacy/classes/page_helper.php

@@ -0,0 +1,87 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Page helper.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy;
+use context_system;
+use moodle_url;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Page helper.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class page_helper {
+
+    /**
+     * Sets up $PAGE for data privacy admin pages.
+     *
+     * @param moodle_url $url The page URL.
+     * @param string $title The page's title.
+     * @param string $attachtoparentnode The parent navigation node where this page can be accessed from.
+     * @param string $requiredcapability The required capability to view this page.
+     */
+    public static function setup(moodle_url $url, $title, $attachtoparentnode = '',
+                                 $requiredcapability = 'tool/dataprivacy:managedataregistry') {
+        global $PAGE, $SITE;
+
+        $context = context_system::instance();
+
+        require_login();
+        if (isguestuser()) {
+            throw new \moodle_exception('noguest');
+        }
+
+        // TODO Check that data privacy is enabled.
+        require_capability($requiredcapability, $context);
+
+        $PAGE->navigation->override_active_url($url);
+
+        $PAGE->set_url($url);
+        $PAGE->set_context($context);
+        $PAGE->set_pagelayout('admin');
+        $PAGE->set_title($title);
+        $PAGE->set_heading($SITE->fullname);
+        $PAGE->set_secondary_active_tab('users');
+        $PAGE->set_primary_active_tab('siteadminnode');
+
+        // If necessary, override the settings navigation to add this page into the breadcrumb navigation.
+        if ($attachtoparentnode) {
+            if ($siteadmin = $PAGE->settingsnav->find('root', \navigation_node::TYPE_SITE_ADMIN)) {
+                $PAGE->navbar->add($siteadmin->get_content(), $siteadmin->action());
+            }
+            if ($dataprivacy = $PAGE->settingsnav->find('privacy', \navigation_node::TYPE_SETTING)) {
+                $PAGE->navbar->add($dataprivacy->get_content(), $dataprivacy->action());
+            }
+            if ($dataregistry = $PAGE->settingsnav->find($attachtoparentnode, \navigation_node::TYPE_SETTING)) {
+                $PAGE->navbar->add($dataregistry->get_content(), $dataregistry->action());
+            }
+
+            $PAGE->navbar->add($title, $url);
+        }
+    }
+}