1<?php
2// This file is part of Moodle - http://moodle.org/
3//
4// Moodle is free software: you can redistribute it and/or modify
5// it under the terms of the GNU General Public License as published by
6// the Free Software Foundation, either version 3 of the License, or
7// (at your option) any later version.
8//
9// Moodle is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12// GNU General Public License for more details.
13//
14// You should have received a copy of the GNU General Public License
15// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
16
17/**
18 * Calculated question renderer class.
19 *
20 * @package    qtype
21 * @subpackage calculated
22 * @copyright  2011 The Open University
23 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
24 */
25
26
27defined('MOODLE_INTERNAL') || die();
28
29require_once($CFG->dirroot . '/question/type/numerical/renderer.php');
30
31
32/**
33 * Generates the output for calculated questions.
34 *
35 * @copyright  1999 onwards Martin Dougiamas {@link http://moodle.com}
36 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
37 */
38class qtype_calculated_renderer extends qtype_numerical_renderer {
39    public function correct_response(question_attempt $qa) {
40        $question = $qa->get_question();
41        $answer = $question->get_correct_response();
42        if (!$answer) {
43            return '';
44        }
45
46        $response = $answer['answer'];
47        if ($question->unitdisplay != qtype_numerical::UNITNONE && $question->unitdisplay != qtype_numerical::UNITINPUT) {
48            $response = $question->ap->add_unit($response);
49        }
50
51        return get_string('correctansweris', 'qtype_shortanswer', $response);
52    }
53
54}
55