MDL-63618 core_plagiarism: Added support to remove users in a context.

This issue is a part of the MDL-62560 Epic.

plagiarism/classes/privacy/plagiarims_user_provider.php

@@ -0,0 +1,46 @@
+<?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/>.
+
+/**
+ * Interface for deleting users related to a context.
+ *
+ * @package    core_plagiarism
+ * @copyright  2018 Adrian Greeve <adriangreeve.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace core_plagiarism\privacy;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Interface for the plagiarism system.
+ *
+ * @copyright  2018 Adrian Greeve <adriangreeve.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+interface plagiarism_user_provider extends
+        // The plagiarism_provider should be implemented by plugins which only provide information to a subsystem.
+        \core_privacy\local\request\plugin\subsystem_provider {
+
+    /**
+     * Delete all user information for the provided users and context.
+     *
+     * @param  array    $userids   The users to delete
+     * @param  \context $context   The context to refine the deletion.
+     */
+    public static function delete_plagiarism_for_users(array $userids, \context $context);
+}

plagiarism/classes/privacy/provider.php

@@ -85,6 +85,16 @@ class provider implements
         static::call_plugin_method('delete_plagiarism_for_user', [$userid, $context]);
     }
 
+    /**
+     * Deletes all user content for a user in a context in all plagiarism plugins.
+     *
+     * @param  array    $userids   The users to delete
+     * @param  \context $context   The context to refine the deletion.
+     */
+    public static function delete_plagiarism_for_users(array $userids, \context $context) {
+        static::call_plugin_method('delete_plagiarism_for_users', [$userids, $context]);
+    }
+
     /**
      * Internal method for looping through all of the plagiarism plugins and calling a method.
      *