question.php

<?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/>.

/**
 * ShortMath question definition class.
 *
 * @package    qtype_shortmath
 * @author     André Storhaug <andr3.storhaug@gmail.com>
 * @copyright  2018 NTNU
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

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

global $CFG;
require_once($CFG->dirroot . '/question/type/shortanswer/question.php');

/**
 * Represents a ShortMath question.
 * @author André Storhaug <andr3.storhaug@gmail.com>
 * @copyright 2018 NTNU
 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class qtype_shortmath_question extends qtype_shortanswer_question {

    /**
     * Function of summarise_response.
     * @param array $response
     * @return string|null
     */
    public function summarise_response(array $response) {
        return isset($response['answer']) ? '\\[' . $response['answer'] . '\\]' : null;
    }
}