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cdece95e TH |
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 multiple-choice question definition class. | |
19 | * | |
20 | * @package qtype | |
21 | * @subpackage calculatedmulti | |
22 | * @copyright 2011 The Open University | |
23 | * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later | |
24 | */ | |
25 | ||
26 | ||
27 | defined('MOODLE_INTERNAL') || die(); | |
28 | ||
29 | require_once($CFG->dirroot . '/question/type/multichoice/question.php'); | |
30 | require_once($CFG->dirroot . '/question/type/calculated/question.php'); | |
31 | ||
32 | ||
33 | /** | |
34 | * Represents a calculated multiple-choice multiple-response question. | |
35 | * | |
36 | * @copyright 2011 The Open University | |
37 | * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later | |
38 | */ | |
39 | class qtype_calculatedmulti_single_question extends qtype_multichoice_single_question | |
40 | implements qtype_calculated_question_with_expressions { | |
41 | /** @var qtype_calculated_dataset_loader helper for loading the dataset. */ | |
42 | public $datasetloader; | |
43 | ||
44 | /** @var qtype_calculated_variable_substituter stores the dataset we are using. */ | |
45 | public $vs; | |
46 | ||
47 | public function start_attempt(question_attempt_step $step) { | |
48 | qtype_calculated_question_helper::start_attempt($this, $step); | |
49 | parent::start_attempt($step); | |
50 | } | |
51 | ||
52 | public function apply_attempt_state(question_attempt_step $step) { | |
53 | qtype_calculated_question_helper::apply_attempt_state($this, $step); | |
54 | parent::apply_attempt_state($step); | |
55 | } | |
56 | ||
57 | public function calculate_all_expressions() { | |
58 | qtype_calculatedmulti_calculate_helper::calculate_all_expressions($this); | |
59 | } | |
60 | } | |
61 | ||
62 | ||
63 | /** | |
64 | * Represents a calculated multiple-choice multiple-response question. | |
65 | * | |
66 | * @copyright 2011 The Open University | |
67 | * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later | |
68 | */ | |
69 | class qtype_calculatedmulti_multi_question extends qtype_multichoice_multi_question | |
70 | implements qtype_calculated_question_with_expressions { | |
71 | /** @var qtype_calculated_dataset_loader helper for loading the dataset. */ | |
72 | public $datasetloader; | |
73 | ||
74 | /** @var qtype_calculated_variable_substituter stores the dataset we are using. */ | |
75 | public $vs; | |
76 | ||
77 | public function start_attempt(question_attempt_step $step) { | |
78 | qtype_calculated_question_helper::start_attempt($this, $step); | |
79 | parent::start_attempt($step); | |
80 | } | |
81 | ||
82 | public function apply_attempt_state(question_attempt_step $step) { | |
83 | qtype_calculated_question_helper::apply_attempt_state($this, $step); | |
84 | parent::apply_attempt_state($step); | |
85 | } | |
86 | ||
87 | public function calculate_all_expressions() { | |
88 | qtype_calculatedmulti_calculate_helper::calculate_all_expressions($this); | |
89 | } | |
90 | } | |
91 | ||
92 | ||
93 | /** | |
94 | * Helper to abstract common code between qtype_calculatedmulti_single_question | |
95 | * and qtype_calculatedmulti_multi_question. | |
96 | * | |
97 | * @copyright 2011 The Open University | |
98 | * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later | |
99 | */ | |
100 | abstract class qtype_calculatedmulti_calculate_helper { | |
101 | /** | |
102 | * Calculate all the exressions in a qtype_calculatedmulti_single_question | |
103 | * or qtype_calculatedmulti_multi_question. | |
104 | * @param unknown_type $question | |
105 | */ | |
106 | public static function calculate_all_expressions( | |
107 | qtype_calculated_question_with_expressions $question) { | |
108 | $question->questiontext = $question->vs->replace_expressions_in_text( | |
109 | $question->questiontext); | |
110 | $question->generalfeedback = $question->vs->replace_expressions_in_text( | |
111 | $question->generalfeedback); | |
112 | ||
113 | foreach ($question->answers as $ans) { | |
114 | if ($ans->answer && $ans->answer !== '*') { | |
115 | $ans->answer = $question->vs->replace_expressions_in_text($ans->answer, | |
116 | $ans->correctanswerlength, $ans->correctanswerformat); | |
117 | } | |
118 | $ans->feedback = $question->vs->replace_expressions_in_text($ans->feedback, | |
119 | $ans->correctanswerlength, $ans->correctanswerformat); | |
120 | } | |
121 | } | |
122 | } |