MDL-30854 quiz/question editing: fix create calc question & add on page.
[moodle.git] / question / type / calculated / datasetdefinitions_form.php
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/>.
17 /**
18  * Defines the editing form for the calculated question data set definitions.
19  *
20  * @package    qtype
21  * @subpackage calculated
22  * @copyright  2007 Jamie Pratt me@jamiep.org
23  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
24  */
27 defined('MOODLE_INTERNAL') || die();
29 require_once($CFG->dirroot . '/question/type/edit_question_form.php');
32 /**
33  * Calculated question data set definitions editing form definition.
34  *
35  * @copyright  2007 Jamie Pratt me@jamiep.org
36  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
37  */
38 class question_dataset_dependent_definitions_form extends question_wizard_form {
39     /**
40      * Question object with options and answers already loaded by get_question_options
41      * Be careful how you use this it is needed sometimes to set up the structure of the
42      * form in definition_inner but data is always loaded into the form with set_defaults.
43      *
44      * @var object
45      */
46     protected $question;
47     /**
48      * Reference to question type object
49      *
50      * @var question_dataset_dependent_questiontype
51      */
52     protected $qtypeobj;
53     /**
54      * Add question-type specific form fields.
55      *
56      * @param MoodleQuickForm $mform the form being built.
57      */
58     public function __construct($submiturl, $question) {
59         global $DB;
60         $this->question = $question;
61         $this->qtypeobj = question_bank::get_qtype($this->question->qtype);
62         // Validate the question category.
63         if (!$category = $DB->get_record('question_categories',
64                 array('id' => $question->category))) {
65             print_error('categorydoesnotexist', 'question', $returnurl);
66         }
67         $this->category = $category;
68         $this->categorycontext = get_context_instance_by_id($category->contextid);
69         parent::__construct($submiturl);
70     }
72     protected function definition() {
73         global $SESSION;
74         $mform = $this->_form;
75         $possibledatasets = $this->qtypeobj->find_dataset_names($this->question->questiontext);
76         $mandatorydatasets = array();
77         if (isset($this->question->options->answers)) {
78             foreach ($this->question->options->answers as $answer) {
79                 $mandatorydatasets += $this->qtypeobj->find_dataset_names($answer->answer);
80             }
81         } else {
82             foreach ($SESSION->calculated->questionform->answers as $answer) {
83                 $mandatorydatasets += $this->qtypeobj->find_dataset_names($answer);
84             }
85         }
87         $key = 0;
88         $datadefscat= array();
89         $datadefscat  = $this->qtypeobj->get_dataset_definitions_category($this->question);
90         $datasetmenus = array();
91         $label = "<div class='mdl-align'>".get_string('datasetrole', 'qtype_calculated')."</div>";
92         // explaining the role of datasets so other strings can be shortened
93         $mform->addElement('html', $label);
94         $mform->addElement('header', 'mandatoryhdr',
95                 get_string('mandatoryhdr', 'qtype_calculated'));
96         $labelsharedwildcard = get_string('sharedwildcard', 'qtype_calculated');
98         foreach ($mandatorydatasets as $datasetname) {
99             if (!isset($datasetmenus[$datasetname])) {
100                 list($options, $selected) =
101                         $this->qtypeobj->dataset_options($this->question, $datasetname);
102                 unset($options['0']); // Mandatory...
103                 $label = get_string('wildcard', 'qtype_calculated', $datasetname);
104                 $mform->addElement('select', "dataset[$key]", $label, $options);
105                 if (isset($datadefscat[$datasetname])) {
106                     $mform->addElement('static', "there is a category",
107                             get_string('sharedwildcard', 'qtype_calculated', $datasetname),
108                             get_string('dataitemdefined', 'qtype_calculated',
109                             $datadefscat[$datasetname]));
110                 }
111                 $mform->setDefault("dataset[$key]", $selected);
112                 $datasetmenus[$datasetname] = '';
113                 $key++;
114             }
115         }
116         $mform->addElement('header', 'possiblehdr', get_string('possiblehdr', 'qtype_calculated'));
118         foreach ($possibledatasets as $datasetname) {
119             if (!isset($datasetmenus[$datasetname])) {
120                 list($options, $selected) = $this->qtypeobj->dataset_options(
121                         $this->question, $datasetname, false);
122                 $label = get_string('wildcard', 'qtype_calculated', $datasetname);
123                 $mform->addElement('select', "dataset[$key]", $label, $options);
124                 if (isset($datadefscat[$datasetname])) {
125                     $mform->addElement('static', "there is a category",
126                             get_string('sharedwildcard', 'qtype_calculated', $datasetname),
127                             get_string('dataitemdefined', 'qtype_calculated',
128                                     $datadefscat[$datasetname]));
129                 }
131                 $mform->setDefault("dataset[$key]", $selected);
132                 $datasetmenus[$datasetname] = '';
133                 $key++;
134             }
135         }
136         // temporary strings
137         $mform->addElement('header', 'synchronizehdr',
138                 get_string('synchronize', 'qtype_calculated'));
139         $mform->addElement('radio', 'synchronize', '',
140                 get_string('synchronizeno', 'qtype_calculated'), 0);
141         $mform->addElement('radio', 'synchronize', '',
142                 get_string('synchronizeyes', 'qtype_calculated'), 1);
143         $mform->addElement('radio', 'synchronize', '',
144                 get_string('synchronizeyesdisplay', 'qtype_calculated'), 2);
145         if (isset($this->question->options) &&
146                 isset($this->question->options->synchronize)) {
147             $mform->setDefault('synchronize', $this->question->options->synchronize);
148         } else {
149             $mform->setDefault('synchronize', 0);
150         }
152         $this->add_action_buttons(false, get_string('nextpage', 'qtype_calculated'));
154         $this->add_hidden_fields();
156         $mform->addElement('hidden', 'category');
157         $mform->setType('category', PARAM_SEQUENCE);
159         $mform->addElement('hidden', 'wizard', 'datasetitems');
160         $mform->setType('wizard', PARAM_ALPHA);
161     }
163     public function validation($data, $files) {
164         $errors = parent::validation($data, $files);
165         $datasets = $data['dataset'];
166         $countvalid = 0;
167         foreach ($datasets as $key => $dataset) {
168             if ($dataset != '0') {
169                 $countvalid++;
170             }
171         }
172         if (!$countvalid) {
173             foreach ($datasets as $key => $dataset) {
174                 $errors['dataset['.$key.']'] =
175                         get_string('atleastonerealdataset', 'qtype_calculated');
176             }
177         }
178         return $errors;
179     }