Implement privacy API (null provider)

Author: mudrd8mz

classes/privacy/provider.php

@@ -0,0 +1,37 @@
+<?php
+// This file is part of Moodle - https://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 <https://www.gnu.org/licenses/>.
+
+namespace block_course_contents\privacy;
+
+/**
+ * Privacy API implementation for the Course contents plugin.
+ *
+ * @copyright  2021 David Mudrák <david@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class provider implements \core_privacy\local\metadata\null_provider {
+
+    use \core_privacy\local\legacy_polyfill;
+
+    /**
+     * Returns stringid of a text explaining that this plugin stores no personal data.
+     *
+     * @return string
+     */
+    public static function _get_reason() {
+        return 'privacy:metadata';
+    }
+}

lang/en/block_course_contents.php

@@ -64,3 +64,5 @@
 $string['config_display_course_link_text'] = 'Custom course page link text';
 $string['config_display_course_link_text_desc'] = 'Default value of the course home page link anchor text. If left empty, the course shortname will be used.';
 $string['config_display_course_link_text_help'] = 'Course home page link anchor text. If left empty, the site-level default value will be used, unless it is also empty. In that case, the course shortname will be used.';
+
+$string['privacy:metadata'] = 'Course contents does not store any personal data';