first commit

communication/provider/customlink/db/caches.php

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+<?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/>.
+
+/**
+ * Defined caches used internally by the provider.
+ *
+ * @package   communication_customlink
+ * @copyright 2023 Michael Hawkins <michaelh@moodle.com>
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+declare(strict_types=1);
+
+defined('MOODLE_INTERNAL') || die();
+
+$definitions = [
+    'customlink' => [
+        'mode' => cache_store::MODE_APPLICATION,
+        'simplekeys' => true,
+        'simpledata' => true,
+    ],
+];

communication/provider/customlink/db/install.xml

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+<?xml version="1.0" encoding="UTF-8" ?>
+<XMLDB PATH="communication/provider/customlink/db" VERSION="20230826" COMMENT="Stores the link associated with a custom link communication instance."
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:noNamespaceSchemaLocation="../../../../lib/xmldb/xmldb.xsd"
+>
+  <TABLES>
+    <TABLE NAME="communication_customlink" COMMENT="Stores the link associated with a custom link communication instance.">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="commid" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false" COMMENT="ID of the communication record"/>
+        <FIELD NAME="url" TYPE="char" LENGTH="255" NOTNULL="false" SEQUENCE="false" COMMENT="URL being linked to by the provider"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+        <KEY NAME="fk_commid" TYPE="foreign" FIELDS="commid" REFTABLE="communication" REFFIELDS="id" COMMENT="Foreign key for communication reference"/>
+      </KEYS>
+    </TABLE>
+  </TABLES>
+</XMLDB>