Proyectos de Subversion Moodle

<?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/>.

/**

 * Privacy class for requesting user data.

 *

 * @package    assignfeedback_file

 * @copyright  2018 Adrian Greeve <adrian@moodle.com>

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

namespace assignfeedback_file\privacy;

defined('MOODLE_INTERNAL') || die();

require_once($CFG->dirroot . '/mod/assign/locallib.php');

use \core_privacy\local\metadata\collection;

use \core_privacy\local\request\contextlist;

use \mod_assign\privacy\assign_plugin_request_data;

use mod_assign\privacy\useridlist;

/**

 * Privacy class for requesting user data.

 *

 * @package    assignfeedback_file

 * @copyright  2018 Adrian Greeve <adrian@moodle.com>

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

class provider implements

        \core_privacy\local\metadata\provider,

        \mod_assign\privacy\assignfeedback_provider,

        \mod_assign\privacy\assignfeedback_user_provider {

    /**

     * Return meta data about this plugin.

     *

     * @param  collection $collection A list of information to add to.

     * @return collection Return the collection after adding to it.

     */

    public static function get_metadata(collection $collection): collection {

        $collection->link_subsystem('core_files', 'privacy:metadata:filepurpose');

        return $collection;

    }

    /**

     * No need to fill in this method as all information can be acquired from the assign_grades table in the mod assign

     * provider.

     *

     * @param  int $userid The user ID.

     * @param  contextlist $contextlist The context list.

     */

    public static function get_context_for_userid_within_feedback(int $userid, contextlist $contextlist) {

        // This uses the assign_grade table.

    }

    /**

     * This also does not need to be filled in as this is already collected in the mod assign provider.

     *

     * @param  useridlist $useridlist A list of user IDs

     */

    public static function get_student_user_ids(useridlist $useridlist) {

        // Not required.

    }

    /**

     * If you have tables that contain userids and you can generate entries in your tables without creating an

     * entry in the assign_grades table then please fill in this method.

     *

     * @param  \core_privacy\local\request\userlist $userlist The userlist object

     */

    public static function get_userids_from_context(\core_privacy\local\request\userlist $userlist) {

        // Not required.

    }

    /**

     * Export all user data for this plugin.

     *

     * @param  assign_plugin_request_data $exportdata Data used to determine which context and user to export and other useful

     * information to help with exporting.

     */

    public static function export_feedback_user_data(assign_plugin_request_data $exportdata) {

        $currentpath = $exportdata->get_subcontext();

        $currentpath[] = get_string('privacy:path', 'assignfeedback_file');

        $assign = $exportdata->get_assign();

        $plugin = $assign->get_plugin_by_type('assignfeedback', 'file');

        $gradeid = $exportdata->get_pluginobject()->id;

        $filefeedback = $plugin->get_file_feedback($gradeid);

        if ($filefeedback) {

            $fileareas = $plugin->get_file_areas();

            foreach ($fileareas as $filearea => $notused) {

                \core_privacy\local\request\writer::with_context($exportdata->get_context())

                        ->export_area_files($currentpath, 'assignfeedback_file', $filearea, $gradeid);

            }

        }

    }

    /**

     * Any call to this method should delete all user data for the context defined in the deletion_criteria.

     *

     * @param  assign_plugin_request_data $requestdata Data useful for deleting user data from this sub-plugin.

     */

    public static function delete_feedback_for_context(assign_plugin_request_data $requestdata) {

        $assign = $requestdata->get_assign();

        $plugin = $assign->get_plugin_by_type('assignfeedback', 'file');

        $fileareas = $plugin->get_file_areas();

        $fs = get_file_storage();

        foreach ($fileareas as $filearea => $notused) {

            // Delete feedback files.

            $fs->delete_area_files($requestdata->get_context()->id, 'assignfeedback_file', $filearea);

        }

        $plugin->delete_instance();

    }

    /**

     * Calling this function should delete all user data associated with this grade.

     *

     * @param  assign_plugin_request_data $requestdata Data useful for deleting user data.

     */

    public static function delete_feedback_for_grade(assign_plugin_request_data $requestdata) {

        $requestdata->set_userids([$requestdata->get_user()->id]);

        $requestdata->populate_submissions_and_grades();

        self::delete_feedback_for_grades($requestdata);

    }

    /**

     * Deletes all feedback for the grade ids / userids provided in a context.

     * assign_plugin_request_data contains:

     * - context

     * - assign object

     * - grade ids (pluginids)

     * - user ids

     * @param  assign_plugin_request_data $deletedata A class that contains the relevant information required for deletion.

     */

    public static function delete_feedback_for_grades(assign_plugin_request_data $deletedata) {

        global $DB;

        if (empty($deletedata->get_gradeids())) {

            return;

        }

        $assign = $deletedata->get_assign();

        $plugin = $assign->get_plugin_by_type('assignfeedback', 'file');

        $fileareas = $plugin->get_file_areas();

        $fs = get_file_storage();

        list($sql, $params) = $DB->get_in_or_equal($deletedata->get_gradeids(), SQL_PARAMS_NAMED);

        $params['assignment'] = $deletedata->get_assignid();

        foreach ($fileareas as $filearea => $notused) {

            // Delete feedback files.

            $fs->delete_area_files_select($deletedata->get_context()->id, 'assignfeedback_file', $filearea, $sql, $params);

        }

        // Delete table entries.

        $DB->delete_records_select('assignfeedback_file', "assignment = :assignment AND grade $sql", $params);

    }

}