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1 efrain 1
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
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/**
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 * Privacy class for requesting user data.
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 *
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 * @package    gradingform_rubric
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 * @copyright  2018 Sara Arjona <sara@moodle.com>
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 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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 */
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namespace gradingform_rubric\privacy;
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defined('MOODLE_INTERNAL') || die();
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use \core_privacy\local\metadata\collection;
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/**
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 * Privacy class for requesting user data.
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 *
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 * @copyright  2018 Sara Arjona <sara@moodle.com>
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 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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 */
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class provider implements
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        \core_privacy\local\metadata\provider,
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        \core_grading\privacy\gradingform_provider_v2 {
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    /**
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     * Returns meta data about this system.
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     *
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     * @param  collection $collection The initialised collection to add items to.
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     * @return collection A listing of user data stored through this system.
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     */
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    public static function get_metadata(collection $collection): collection {
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        $collection->add_database_table('gradingform_rubric_fillings', [
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            'instanceid' => 'privacy:metadata:instanceid',
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            'criterionid' => 'privacy:metadata:criterionid',
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            'levelid' => 'privacy:metadata:levelid',
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            'remark' => 'privacy:metadata:remark'
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        ], 'privacy:metadata:fillingssummary');
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        return $collection;
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    }
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    /**
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     * Export user data relating to an instance ID.
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     *
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     * @param  \context $context Context to use with the export writer.
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     * @param  int $instanceid The instance ID to export data for.
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     * @param  array $subcontext The directory to export this data to.
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     */
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    public static function export_gradingform_instance_data(\context $context, int $instanceid, array $subcontext) {
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        global $DB;
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        // Get records from the provided params.
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        $params = ['instanceid' => $instanceid];
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        $sql = "SELECT rc.description, rl.definition, rl.score, rf.remark
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                  FROM {gradingform_rubric_fillings} rf
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                  JOIN {gradingform_rubric_criteria} rc ON rc.id = rf.criterionid
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                  JOIN {gradingform_rubric_levels} rl ON rf.levelid = rl.id
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                 WHERE rf.instanceid = :instanceid";
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        $records = $DB->get_records_sql($sql, $params);
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        if ($records) {
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            $subcontext = array_merge($subcontext, [get_string('rubric', 'gradingform_rubric'), $instanceid]);
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            \core_privacy\local\request\writer::with_context($context)->export_data($subcontext, (object) $records);
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        }
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    }
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    /**
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     * Deletes all user data related to the provided instance IDs.
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     *
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     * @param  array  $instanceids The instance IDs to delete information from.
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     */
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    public static function delete_gradingform_for_instances(array $instanceids) {
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        global $DB;
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        $DB->delete_records_list('gradingform_rubric_fillings', 'instanceid', $instanceids);
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    }
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}