first commit

group/classes/reportbuilder/datasource/groups.php

@@ -0,0 +1,151 @@
+<?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/>.
+
+declare(strict_types=1);
+
+namespace core_group\reportbuilder\datasource;
+
+use core_group\reportbuilder\local\entities\{grouping, group, group_member};
+use core_reportbuilder\datasource;
+use core_reportbuilder\local\entities\{course, user};
+use core_reportbuilder\local\helpers\database;
+
+/**
+ * Groups datasource
+ *
+ * @package     core_group
+ * @copyright   2022 Paul Holden <paulh@moodle.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class groups extends datasource {
+
+    /**
+     * Return user friendly name of the datasource
+     *
+     * @return string
+     */
+    public static function get_name(): string {
+        return get_string('groups', 'core_group');
+    }
+
+    /**
+     * Initialise report
+     */
+    protected function initialise(): void {
+        $courseentity = new course();
+        $coursealias = $courseentity->get_table_alias('course');
+
+        $this->set_main_table('course', $coursealias);
+        $this->add_entity($courseentity);
+
+        $paramsiteid = database::generate_param_name();
+        $this->add_base_condition_sql("{$coursealias}.id != :{$paramsiteid}", [$paramsiteid => SITEID]);
+
+        // Re-use the context table alias/join from the course entity in subsequent entities.
+        $contextalias = $courseentity->get_table_alias('context');
+        $this->add_join($courseentity->get_context_join());
+
+        // Group entity.
+        $groupentity = (new group())
+            ->set_table_alias('context', $contextalias);
+        $groupsalias = $groupentity->get_table_alias('groups');
+        $this->add_entity($groupentity
+            ->add_join("LEFT JOIN {groups} {$groupsalias} ON {$groupsalias}.courseid = {$coursealias}.id"));
+
+        // Grouping entity.
+        $groupingentity = (new grouping())
+            ->set_table_alias('context', $contextalias);
+        $groupingsalias = $groupingentity->get_table_alias('groupings');
+
+        // Sub-select for all groupings groups.
+        $groupinginnerselect = "
+            SELECT gr.*, grg.groupid
+              FROM {groupings} gr
+              JOIN {groupings_groups} grg ON grg.groupingid = gr.id";
+
+        $this->add_entity($groupingentity
+            ->add_joins($groupentity->get_joins())
+            ->add_join("LEFT JOIN ({$groupinginnerselect}) {$groupingsalias}
+                ON {$groupingsalias}.courseid = {$coursealias}.id AND {$groupingsalias}.groupid = {$groupsalias}.id"));
+
+        // Group member entity.
+        $groupmemberentity = new group_member();
+        $groupsmembersalias = $groupmemberentity->get_table_alias('groups_members');
+        $this->add_entity($groupmemberentity
+            ->add_joins($groupentity->get_joins())
+            ->add_join("LEFT JOIN {groups_members} {$groupsmembersalias} ON {$groupsmembersalias}.groupid = {$groupsalias}.id"));
+
+        // User entity.
+        $userentity = new user();
+        $useralias = $userentity->get_table_alias('user');
+        $this->add_entity($userentity
+            ->add_joins($groupmemberentity->get_joins())
+            ->add_join("LEFT JOIN {user} {$useralias} ON {$useralias}.id = {$groupsmembersalias}.userid"));
+
+        // Add all elements from entities to be available in custom reports.
+        $this->add_all_from_entities();
+    }
+
+    /**
+     * Return the columns that will be added to the report as part of default setup
+     *
+     * @return string[]
+     */
+    public function get_default_columns(): array {
+        return [
+            'course:coursefullnamewithlink',
+            'group:name',
+            'user:fullname',
+        ];
+    }
+
+    /**
+     * Return the column sorting that will be added to the report upon creation
+     *
+     * @return int[]
+     */
+    public function get_default_column_sorting(): array {
+        return [
+            'course:coursefullnamewithlink' => SORT_ASC,
+            'group:name' => SORT_ASC,
+            'user:fullname' => SORT_ASC,
+        ];
+    }
+
+    /**
+     * Return the filters that will be added to the report as part of default setup
+     *
+     * @return string[]
+     */
+    public function get_default_filters(): array {
+        return [
+            'course:fullname',
+            'group:name',
+        ];
+    }
+
+    /**
+     * Return the conditions that will be added to the report as part of default setup
+     *
+     * @return string[]
+     */
+    public function get_default_conditions(): array {
+        return [
+            'course:fullname',
+            'group:name',
+        ];
+    }
+}

group/classes/reportbuilder/local/entities/group.php

@@ -0,0 +1,343 @@
+<?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/>.
+
+declare(strict_types=1);
+
+namespace core_group\reportbuilder\local\entities;
+
+use context_course;
+use context_helper;
+use html_writer;
+use lang_string;
+use moodle_url;
+use stdClass;
+use core_reportbuilder\local\entities\base;
+use core_reportbuilder\local\filters\{boolean_select, date, select, text};
+use core_reportbuilder\local\helpers\{custom_fields, format};
+use core_reportbuilder\local\report\{column, filter};
+
+defined('MOODLE_INTERNAL') || die();
+
+global $CFG;
+require_once("{$CFG->libdir}/grouplib.php");
+
+/**
+ * Group entity
+ *
+ * @package     core_group
+ * @copyright   2022 Paul Holden <paulh@moodle.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class group extends base {
+
+    /**
+     * Database tables that this entity uses
+     *
+     * @return string[]
+     */
+    protected function get_default_tables(): array {
+        return [
+            'context',
+            'groups',
+        ];
+    }
+
+    /**
+     * The default title for this entity
+     *
+     * @return lang_string
+     */
+    protected function get_default_entity_title(): lang_string {
+        return new lang_string('group', 'core_group');
+    }
+
+    /**
+     * Initialise the entity
+     *
+     * @return base
+     */
+    public function initialise(): base {
+        $groupsalias = $this->get_table_alias('groups');
+
+        $customfields = (new custom_fields(
+            "{$groupsalias}.id",
+            $this->get_entity_name(),
+            'core_group',
+            'group',
+        ))
+            ->add_joins($this->get_joins());
+
+        $columns = array_merge($this->get_all_columns(), $customfields->get_columns());
+        foreach ($columns as $column) {
+            $this->add_column($column);
+        }
+
+        // All the filters defined by the entity can also be used as conditions.
+        $filters = array_merge($this->get_all_filters(), $customfields->get_filters());
+        foreach ($filters as $filter) {
+            $this
+                ->add_filter($filter)
+                ->add_condition($filter);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Returns list of all available columns
+     *
+     * @return column[]
+     */
+    protected function get_all_columns(): array {
+        global $DB;
+
+        $contextalias = $this->get_table_alias('context');
+        $groupsalias = $this->get_table_alias('groups');
+
+        // Name column.
+        $columns[] = (new column(
+            'name',
+            new lang_string('name'),
+            $this->get_entity_name()
+        ))
+            ->add_joins($this->get_joins())
+            ->set_type(column::TYPE_TEXT)
+            ->add_fields("{$groupsalias}.name, {$groupsalias}.courseid")
+            ->add_fields(context_helper::get_preload_record_columns_sql($contextalias))
+            ->set_is_sortable(true)
+            ->set_callback(static function($name, stdClass $group): string {
+                if ($name === null) {
+                    return '';
+                }
+
+                context_helper::preload_from_record($group);
+                $context = context_course::instance($group->courseid);
+
+                return format_string($group->name, true, ['context' => $context]);
+            });
+
+        // ID number column.
+        $columns[] = (new column(
+            'idnumber',
+            new lang_string('idnumber'),
+            $this->get_entity_name()
+        ))
+            ->add_joins($this->get_joins())
+            ->set_type(column::TYPE_TEXT)
+            ->add_fields("{$groupsalias}.idnumber")
+            ->set_is_sortable(true);
+
+        // Description column.
+        $descriptionfieldsql = "{$groupsalias}.description";
+        if ($DB->get_dbfamily() === 'oracle') {
+            $descriptionfieldsql = $DB->sql_order_by_text($descriptionfieldsql, 1024);
+        }
+        $columns[] = (new column(
+            'description',
+            new lang_string('description'),
+            $this->get_entity_name()
+        ))
+            ->add_joins($this->get_joins())
+            ->set_type(column::TYPE_LONGTEXT)
+            ->add_field($descriptionfieldsql, 'description')
+            ->add_fields("{$groupsalias}.descriptionformat, {$groupsalias}.id, {$groupsalias}.courseid")
+            ->add_fields(context_helper::get_preload_record_columns_sql($contextalias))
+            ->set_is_sortable(false)
+            ->set_callback(static function(?string $description, stdClass $group): string {
+                global $CFG;
+
+                if ($description === null) {
+                    return '';
+                }
+
+                require_once("{$CFG->libdir}/filelib.php");
+
+                context_helper::preload_from_record($group);
+                $context = context_course::instance($group->courseid);
+
+                $description = file_rewrite_pluginfile_urls($description, 'pluginfile.php', $context->id, 'group',
+                    'description', $group->id);
+
+                return format_text($description, $group->descriptionformat, ['context' => $context]);
+            });
+
+        // Enrolment key column.
+        $columns[] = (new column(
+            'enrolmentkey',
+            new lang_string('enrolmentkey', 'core_group'),
+            $this->get_entity_name()
+        ))
+            ->add_joins($this->get_joins())
+            ->set_type(column::TYPE_TEXT)
+            ->add_fields("{$groupsalias}.enrolmentkey")
+            ->set_is_sortable(true);
+
+        // Visibility column.
+        $columns[] = (new column(
+            'visibility',
+            new lang_string('visibilityshort', 'core_group'),
+            $this->get_entity_name()
+        ))
+            ->add_joins($this->get_joins())
+            ->set_type(column::TYPE_INTEGER)
+            ->add_fields("{$groupsalias}.visibility")
+            ->set_is_sortable(true)
+            // It doesn't make sense to offer integer aggregation methods for this column.
+            ->set_disabled_aggregation(['avg', 'max', 'min', 'sum'])
+            ->set_callback(static function(?int $visibility): string {
+                if ($visibility === null) {
+                    return '';
+                }
+
+                $options = [
+                    GROUPS_VISIBILITY_ALL => new lang_string('visibilityall', 'core_group'),
+                    GROUPS_VISIBILITY_MEMBERS => new lang_string('visibilitymembers', 'core_group'),
+                    GROUPS_VISIBILITY_OWN => new lang_string('visibilityown', 'core_group'),
+                    GROUPS_VISIBILITY_NONE => new lang_string('visibilitynone', 'core_group'),
+                ];
+
+                return (string) ($options[$visibility] ?? $visibility);
+            });
+
+        // Participation column.
+        $columns[] = (new column(
+            'participation',
+            new lang_string('participationshort', 'core_group'),
+            $this->get_entity_name()
+        ))
+            ->add_joins($this->get_joins())
+            ->set_type(column::TYPE_BOOLEAN)
+            ->add_fields("{$groupsalias}.participation")
+            ->set_is_sortable(true)
+            ->set_callback([format::class, 'boolean_as_text']);
+
+        // Picture column.
+        $columns[] = (new column(
+            'picture',
+            new lang_string('picture'),
+            $this->get_entity_name()
+        ))
+            ->add_joins($this->get_joins())
+            ->set_type(column::TYPE_INTEGER)
+            ->add_fields("{$groupsalias}.picture, {$groupsalias}.id, {$contextalias}.id AS contextid")
+            ->set_is_sortable(false)
+            // It doesn't make sense to offer integer aggregation methods for this column.
+            ->set_disabled_aggregation(['avg', 'max', 'min', 'sum'])
+            ->set_callback(static function ($picture, stdClass $group): string {
+                if (empty($group->picture)) {
+                    return '';
+                }
+
+                $pictureurl = moodle_url::make_pluginfile_url($group->contextid, 'group', 'icon', $group->id, '/', 'f2');
+                $pictureurl->param('rev', $group->picture);
+
+                return html_writer::img($pictureurl, '');
+            });
+
+        // Time created column.
+        $columns[] = (new column(
+            'timecreated',
+            new lang_string('timecreated', 'core_reportbuilder'),
+            $this->get_entity_name()
+        ))
+            ->add_joins($this->get_joins())
+            ->set_type(column::TYPE_TIMESTAMP)
+            ->add_fields("{$groupsalias}.timecreated")
+            ->set_is_sortable(true)
+            ->set_callback([format::class, 'userdate']);
+
+        // Time modified column.
+        $columns[] = (new column(
+            'timemodified',
+            new lang_string('timemodified', 'core_reportbuilder'),
+            $this->get_entity_name()
+        ))
+            ->add_joins($this->get_joins())
+            ->set_type(column::TYPE_TIMESTAMP)
+            ->add_fields("{$groupsalias}.timemodified")
+            ->set_is_sortable(true)
+            ->set_callback([format::class, 'userdate']);
+
+        return $columns;
+    }
+
+    /**
+     * Return list of all available filters
+     *
+     * @return filter[]
+     */
+    protected function get_all_filters(): array {
+        $groupsalias = $this->get_table_alias('groups');
+
+        // Name filter.
+        $filters[] = (new filter(
+            text::class,
+            'name',
+            new lang_string('name'),
+            $this->get_entity_name(),
+            "{$groupsalias}.name"
+        ))
+            ->add_joins($this->get_joins());
+
+        // ID number filter.
+        $filters[] = (new filter(
+            text::class,
+            'idnumber',
+            new lang_string('idnumber'),
+            $this->get_entity_name(),
+            "{$groupsalias}.idnumber"
+        ))
+            ->add_joins($this->get_joins());
+
+        // Visibility filter.
+        $filters[] = (new filter(
+            select::class,
+            'visibility',
+            new lang_string('visibilityshort', 'core_group'),
+            $this->get_entity_name(),
+            "{$groupsalias}.visibility"
+        ))
+            ->add_joins($this->get_joins())
+            ->set_options([
+                GROUPS_VISIBILITY_ALL => new lang_string('visibilityall', 'core_group'),
+                GROUPS_VISIBILITY_MEMBERS => new lang_string('visibilitymembers', 'core_group'),
+                GROUPS_VISIBILITY_OWN => new lang_string('visibilityown', 'core_group'),
+                GROUPS_VISIBILITY_NONE => new lang_string('visibilitynone', 'core_group'),
+            ]);
+
+        // Participation filter.
+        $filters[] = (new filter(
+            boolean_select::class,
+            'participation',
+            new lang_string('participationshort', 'core_group'),
+            $this->get_entity_name(),
+            "{$groupsalias}.participation"
+        ))
+            ->add_joins($this->get_joins());
+
+        // Time created filter.
+        $filters[] = (new filter(
+            date::class,
+            'timecreated',
+            new lang_string('timecreated', 'core_reportbuilder'),
+            $this->get_entity_name(),
+            "{$groupsalias}.timecreated"
+        ))
+            ->add_joins($this->get_joins());
+
+        return $filters;
+    }
+}

group/classes/reportbuilder/local/entities/group_member.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/>.
+
+declare(strict_types=1);
+
+namespace core_group\reportbuilder\local\entities;
+
+use core_reportbuilder\local\filters\date;
+use lang_string;
+use core_reportbuilder\local\entities\base;
+use core_reportbuilder\local\helpers\format;
+use core_reportbuilder\local\report\{column, filter};
+
+/**
+ * Group member entity
+ *
+ * @package     core_group
+ * @copyright   2022 Paul Holden <paulh@moodle.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class group_member extends base {
+
+    /**
+     * Database tables that this entity uses
+     *
+     * @return string[]
+     */
+    protected function get_default_tables(): array {
+        return [
+            'groups_members',
+        ];
+    }
+
+    /**
+     * The default title for this entity
+     *
+     * @return lang_string
+     */
+    protected function get_default_entity_title(): lang_string {
+        return new lang_string('groupmember', 'core_group');
+    }
+
+    /**
+     * Initialise the entity
+     *
+     * @return base
+     */
+    public function initialise(): base {
+        $columns = $this->get_all_columns();
+        foreach ($columns as $column) {
+            $this->add_column($column);
+        }
+
+        // All the filters defined by the entity can also be used as conditions.
+        $filters = $this->get_all_filters();
+        foreach ($filters as $filter) {
+            $this
+                ->add_filter($filter)
+                ->add_condition($filter);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Returns list of all available columns
+     *
+     * @return column[]
+     */
+    protected function get_all_columns(): array {
+        $groupsmembersalias = $this->get_table_alias('groups_members');
+
+        // Time added column.
+        $columns[] = (new column(
+            'timeadded',
+            new lang_string('timeadded', 'core_reportbuilder'),
+            $this->get_entity_name()
+        ))
+            ->add_joins($this->get_joins())
+            ->set_type(column::TYPE_TIMESTAMP)
+            ->add_fields("{$groupsmembersalias}.timeadded")
+            ->set_is_sortable(true)
+            ->set_callback([format::class, 'userdate']);
+
+        // Component column.
+        $columns[] = (new column(
+            'component',
+            new lang_string('plugin', 'core'),
+            $this->get_entity_name()
+        ))
+            ->add_joins($this->get_joins())
+            ->set_type(column::TYPE_TEXT)
+            ->add_fields("{$groupsmembersalias}.component")
+            ->set_is_sortable(true);
+
+        return $columns;
+    }
+
+    /**
+     * Return list of all available filters
+     *
+     * @return filter[]
+     */
+    protected function get_all_filters(): array {
+        $groupsmembersalias = $this->get_table_alias('groups_members');
+
+        // Time added filter.
+        $filters[] = (new filter(
+            date::class,
+            'timeadded',
+            new lang_string('timeadded', 'core_reportbuilder'),
+            $this->get_entity_name(),
+            "{$groupsmembersalias}.timeadded"
+        ))
+            ->add_joins($this->get_joins());
+
+        return $filters;
+    }
+}

group/classes/reportbuilder/local/entities/grouping.php

@@ -0,0 +1,237 @@
+<?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/>.
+
+declare(strict_types=1);
+
+namespace core_group\reportbuilder\local\entities;
+
+use context_course;
+use context_helper;
+use lang_string;
+use stdClass;
+use core_reportbuilder\local\entities\base;
+use core_reportbuilder\local\filters\{date, text};
+use core_reportbuilder\local\helpers\{custom_fields, format};
+use core_reportbuilder\local\report\{column, filter};
+
+/**
+ * Grouping entity
+ *
+ * @package     core_group
+ * @copyright   2022 Paul Holden <paulh@moodle.com>
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class grouping extends base {
+
+    /**
+     * Database tables that this entity uses
+     *
+     * @return string[]
+     */
+    protected function get_default_tables(): array {
+        return [
+            'context',
+            'groupings',
+        ];
+    }
+
+    /**
+     * The default title for this entity
+     *
+     * @return lang_string
+     */
+    protected function get_default_entity_title(): lang_string {
+        return new lang_string('grouping', 'core_group');
+    }
+
+    /**
+     * Initialise the entity
+     *
+     * @return base
+     */
+    public function initialise(): base {
+        $groupingsalias = $this->get_table_alias('groupings');
+
+        $customfields = (new custom_fields(
+            "{$groupingsalias}.id",
+            $this->get_entity_name(),
+            'core_group',
+            'grouping',
+        ))
+            ->add_joins($this->get_joins());
+
+        $columns = array_merge($this->get_all_columns(), $customfields->get_columns());
+        foreach ($columns as $column) {
+            $this->add_column($column);
+        }
+
+        // All the filters defined by the entity can also be used as conditions.
+        $filters = array_merge($this->get_all_filters(), $customfields->get_filters());
+        foreach ($filters as $filter) {
+            $this
+                ->add_filter($filter)
+                ->add_condition($filter);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Returns list of all available columns
+     *
+     * @return column[]
+     */
+    protected function get_all_columns(): array {
+        global $DB;
+
+        $contextalias = $this->get_table_alias('context');
+        $groupingsalias = $this->get_table_alias('groupings');
+
+        // Name column.
+        $columns[] = (new column(
+            'name',
+            new lang_string('name'),
+            $this->get_entity_name()
+        ))
+            ->add_joins($this->get_joins())
+            ->set_type(column::TYPE_TEXT)
+            ->add_fields("{$groupingsalias}.name, {$groupingsalias}.courseid")
+            ->add_fields(context_helper::get_preload_record_columns_sql($contextalias))
+            ->set_is_sortable(true)
+            ->set_callback(static function($name, stdClass $grouping): string {
+                if ($name === null) {
+                    return '';
+                }
+
+                context_helper::preload_from_record($grouping);
+                $context = context_course::instance($grouping->courseid);
+
+                return format_string($grouping->name, true, ['context' => $context]);
+            });
+
+        // ID number column.
+        $columns[] = (new column(
+            'idnumber',
+            new lang_string('idnumber'),
+            $this->get_entity_name()
+        ))
+            ->add_joins($this->get_joins())
+            ->set_type(column::TYPE_TEXT)
+            ->add_fields("{$groupingsalias}.idnumber")
+            ->set_is_sortable(true);
+
+        // Description column.
+        $descriptionfieldsql = "{$groupingsalias}.description";
+        if ($DB->get_dbfamily() === 'oracle') {
+            $descriptionfieldsql = $DB->sql_order_by_text($descriptionfieldsql, 1024);
+        }
+        $columns[] = (new column(
+            'description',
+            new lang_string('description'),
+            $this->get_entity_name()
+        ))
+            ->add_joins($this->get_joins())
+            ->set_type(column::TYPE_LONGTEXT)
+            ->add_field($descriptionfieldsql, 'description')
+            ->add_fields("{$groupingsalias}.descriptionformat, {$groupingsalias}.id, {$groupingsalias}.courseid")
+            ->add_fields(context_helper::get_preload_record_columns_sql($contextalias))
+            ->set_is_sortable(false)
+            ->set_callback(static function(?string $description, stdClass $grouping): string {
+                global $CFG;
+
+                if ($description === null) {
+                    return '';
+                }
+
+                require_once("{$CFG->libdir}/filelib.php");
+
+                context_helper::preload_from_record($grouping);
+                $context = context_course::instance($grouping->courseid);
+
+                $description = file_rewrite_pluginfile_urls($description, 'pluginfile.php', $context->id, 'grouping',
+                    'description', $grouping->id);
+
+                return format_text($description, $grouping->descriptionformat, ['context' => $context]);
+            });
+
+        // Time created column.
+        $columns[] = (new column(
+            'timecreated',
+            new lang_string('timecreated', 'core_reportbuilder'),
+            $this->get_entity_name()
+        ))
+            ->add_joins($this->get_joins())
+            ->set_type(column::TYPE_TIMESTAMP)
+            ->add_fields("{$groupingsalias}.timecreated")
+            ->set_is_sortable(true)
+            ->set_callback([format::class, 'userdate']);
+
+        // Time modified column.
+        $columns[] = (new column(
+            'timemodified',
+            new lang_string('timemodified', 'core_reportbuilder'),
+            $this->get_entity_name()
+        ))
+            ->add_joins($this->get_joins())
+            ->set_type(column::TYPE_TIMESTAMP)
+            ->add_fields("{$groupingsalias}.timemodified")
+            ->set_is_sortable(true)
+            ->set_callback([format::class, 'userdate']);
+
+        return $columns;
+    }
+
+    /**
+     * Return list of all available filters
+     *
+     * @return filter[]
+     */
+    protected function get_all_filters(): array {
+        $groupingsalias = $this->get_table_alias('groupings');
+
+        // Name filter.
+        $filters[] = (new filter(
+            text::class,
+            'name',
+            new lang_string('name'),
+            $this->get_entity_name(),
+            "{$groupingsalias}.name"
+        ))
+            ->add_joins($this->get_joins());
+
+        // ID number filter.
+        $filters[] = (new filter(
+            text::class,
+            'idnumber',
+            new lang_string('idnumber'),
+            $this->get_entity_name(),
+            "{$groupingsalias}.idnumber"
+        ))
+            ->add_joins($this->get_joins());
+
+        // Time created filter.
+        $filters[] = (new filter(
+            date::class,
+            'timecreated',
+            new lang_string('timecreated', 'core_reportbuilder'),
+            $this->get_entity_name(),
+            "{$groupingsalias}.timecreated"
+        ))
+            ->add_joins($this->get_joins());
+
+        return $filters;
+    }
+}