questiontestrun.php

<?php
// This file is part of Stack - http://stack.maths.ed.ac.uk/
//
// Stack 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.
//
// Stack 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 STACK.  If not, see <http://www.gnu.org/licenses/>.

/**
 * This script lets the user test a question using any question tests defined
 * in the database. It also displays some of the internal workins of questions.
 *
 * Users with moodle/question:view capability can use this script to view the
 * results of the tests.
 *
 * Users with moodle/question:edit can edit the test cases and deployed variant,
 * as well as just run them.
 *
 * The script takes one parameter id which is a questionid as a parameter.
 * In can optionally also take a random seed.
 *
 * @copyright  2012 the Open University
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

define('NO_OUTPUT_BUFFERING', true);

require_once(__DIR__.'/../../../config.php');

require_once($CFG->libdir . '/questionlib.php');
require_once(__DIR__ . '/vle_specific.php');
require_once(__DIR__ . '/locallib.php');
require_once(__DIR__ . '/stack/questiontest.php');
require_once(__DIR__ . '/stack/bulktester.class.php');

// Get the parameters from the URL.
$questionid = required_param('questionid', PARAM_INT);

$qversion = null;
if (stack_determine_moodle_version() >= 400) {
    // We should always run tests on the latest version of the question.
    // This means we can refresh/reload the page even if the question has been edited and saved in another window.
    // When we click "edit question" button we automatically jump to the last version, and don't edit this version.
    $query = 'SELECT qv.questionid, qv.version FROM {question_versions} qv
                  JOIN {question_bank_entries} qbe ON qbe.id = qv.questionbankentryid
                  WHERE qbe.id = (SELECT be.id FROM {question_bank_entries} be
                                  JOIN {question_versions} v ON v.questionbankentryid = be.id
                                  WHERE v.questionid = ' . $questionid . ')
              ORDER BY qv.questionid';
    global $DB;
    $result = $DB->get_records_sql($query);
    $result = end($result);
    $qversion = $result->version;
    $questionid = $result->questionid;
}

// Load the necessary data.
$questiondata = question_bank::load_question_data($questionid);
if (!$questiondata) {
    throw new stack_exception('questiondoesnotexist');
}
$question = question_bank::load_question($questionid);