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<?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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namespace mod_quiz\external;
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defined('MOODLE_INTERNAL') || die();
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require_once($CFG->dirroot . '/question/engine/lib.php');
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require_once($CFG->dirroot . '/question/engine/datalib.php');
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require_once($CFG->libdir . '/questionlib.php');
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use core_external\external_api;
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use core_external\external_function_parameters;
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use core_external\external_single_structure;
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use core_external\external_value;
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use stdClass;
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/**
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* External api for changing the question version in the quiz.
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*
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* @package mod_quiz
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* @copyright 2021 Catalyst IT Australia Pty Ltd
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* @author Safat Shahin <safatshahin@catalyst-au.net>
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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 submit_question_version extends external_api {
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/**
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* Parameters for the submit_question_version.
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*
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* @return external_function_parameters
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*/
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public static function execute_parameters(): external_function_parameters {
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return new external_function_parameters([
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'slotid' => new external_value(PARAM_INT, ''),
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'newversion' => new external_value(PARAM_INT, '')
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]);
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}
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/**
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* Set the questions slot parameters to display the question template.
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*
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* @param int $slotid Slot id to display.
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* @param int $newversion the version to set. 0 means 'always latest'.
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* @return array
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*/
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public static function execute(int $slotid, int $newversion): array {
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global $DB;
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$params = [
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'slotid' => $slotid,
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'newversion' => $newversion
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];
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$params = self::validate_parameters(self::execute_parameters(), $params);
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$response = [];
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// Get the required data.
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$referencedata = $DB->get_record('question_references',
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['itemid' => $params['slotid'], 'component' => 'mod_quiz', 'questionarea' => 'slot']);
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$slotdata = $DB->get_record('quiz_slots', ['id' => $slotid]);
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// Capability check.
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[, $cm] = get_course_and_cm_from_instance($slotdata->quizid, 'quiz');
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$context = \context_module::instance($cm->id);
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self::validate_context($context);
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require_capability('mod/quiz:manage', $context);
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$reference = new stdClass();
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$reference->id = $referencedata->id;
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if ($params['newversion'] === 0) {
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$reference->version = null;
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} else {
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$reference->version = $params['newversion'];
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}
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$response['result'] = $DB->update_record('question_references', $reference);
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return $response;
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}
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/**
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* Define the webservice response.
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*
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* @return \core_external\external_description
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*/
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public static function execute_returns() {
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return new external_single_structure([
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'result' => new external_value(PARAM_BOOL, '')
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]);
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}
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}
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