MDL-9873 questions Set question text field to required.
[moodle.git] / question / type / edit_question_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  * A base class for question editing forms.
19  *
20  * @package    moodlecore
21  * @subpackage questiontypes
22  * @copyright  2006 The Open University
23  * @license    http://www.gnu.org/copyleft/gpl.html GNU Public License
24  */
27 defined('MOODLE_INTERNAL') || die();
29 global $CFG;
30 require_once($CFG->libdir.'/formslib.php');
33 abstract class question_wizard_form extends moodleform {
34     /**
35      * Add all the hidden form fields used by question/question.php.
36      */
37     protected function add_hidden_fields() {
38         $mform = $this->_form;
40         $mform->addElement('hidden', 'id');
41         $mform->setType('id', PARAM_INT);
43         $mform->addElement('hidden', 'inpopup');
44         $mform->setType('inpopup', PARAM_INT);
46         $mform->addElement('hidden', 'cmid');
47         $mform->setType('cmid', PARAM_INT);
49         $mform->addElement('hidden', 'courseid');
50         $mform->setType('courseid', PARAM_INT);
52         $mform->addElement('hidden', 'returnurl');
53         $mform->setType('returnurl', PARAM_LOCALURL);
55         $mform->addElement('hidden', 'scrollpos');
56         $mform->setType('scrollpos', PARAM_INT);
58         $mform->addElement('hidden', 'appendqnumstring');
59         $mform->setType('appendqnumstring', PARAM_ALPHA);
60     }
61 }
63 /**
64  * Form definition base class. This defines the common fields that
65  * all question types need. Question types should define their own
66  * class that inherits from this one, and implements the definition_inner()
67  * method.
68  *
69  * @copyright  2006 The Open University
70  * @license    http://www.gnu.org/copyleft/gpl.html GNU Public License
71  */
72 abstract class question_edit_form extends question_wizard_form {
73     const DEFAULT_NUM_HINTS = 2;
75     /**
76      * Question object with options and answers already loaded by get_question_options
77      * Be careful how you use this it is needed sometimes to set up the structure of the
78      * form in definition_inner but data is always loaded into the form with set_data.
79      * @var object
80      */
81     protected $question;
83     protected $contexts;
84     protected $category;
85     protected $categorycontext;
87     /** @var object current context */
88     public $context;
89     /** @var array html editor options */
90     public $editoroptions;
91     /** @var array options to preapre draft area */
92     public $fileoptions;
93     /** @var object instance of question type */
94     public $instance;
96     public function __construct($submiturl, $question, $category, $contexts, $formeditable = true) {
97         global $DB;
99         $this->question = $question;
100         $this->contexts = $contexts;
102         $record = $DB->get_record('question_categories',
103                 array('id' => $question->category), 'contextid');
104         $this->context = context::instance_by_id($record->contextid);
106         $this->editoroptions = array('subdirs' => 1, 'maxfiles' => EDITOR_UNLIMITED_FILES,
107                 'context' => $this->context);
108         $this->fileoptions = array('subdirs' => 1, 'maxfiles' => -1, 'maxbytes' => -1);
110         $this->category = $category;
111         $this->categorycontext = context::instance_by_id($category->contextid);
113         parent::__construct($submiturl, null, 'post', '', null, $formeditable);
114     }
116     /**
117      * Build the form definition.
118      *
119      * This adds all the form fields that the default question type supports.
120      * If your question type does not support all these fields, then you can
121      * override this method and remove the ones you don't want with $mform->removeElement().
122      */
123     protected function definition() {
124         global $COURSE, $CFG, $DB;
126         $qtype = $this->qtype();
127         $langfile = "qtype_$qtype";
129         $mform = $this->_form;
131         // Standard fields at the start of the form.
132         $mform->addElement('header', 'generalheader', get_string("general", 'form'));
134         if (!isset($this->question->id)) {
135             if (!empty($this->question->formoptions->mustbeusable)) {
136                 $contexts = $this->contexts->having_add_and_use();
137             } else {
138                 $contexts = $this->contexts->having_cap('moodle/question:add');
139             }
141             // Adding question.
142             $mform->addElement('questioncategory', 'category', get_string('category', 'question'),
143                     array('contexts' => $contexts));
144         } else if (!($this->question->formoptions->canmove ||
145                 $this->question->formoptions->cansaveasnew)) {
146             // Editing question with no permission to move from category.
147             $mform->addElement('questioncategory', 'category', get_string('category', 'question'),
148                     array('contexts' => array($this->categorycontext)));
149         } else if ($this->question->formoptions->movecontext) {
150             // Moving question to another context.
151             $mform->addElement('questioncategory', 'categorymoveto',
152                     get_string('category', 'question'),
153                     array('contexts' => $this->contexts->having_cap('moodle/question:add')));
155         } else {
156             // Editing question with permission to move from category or save as new q.
157             $currentgrp = array();
158             $currentgrp[0] = $mform->createElement('questioncategory', 'category',
159                     get_string('categorycurrent', 'question'),
160                     array('contexts' => array($this->categorycontext)));
161             if ($this->question->formoptions->canedit ||
162                     $this->question->formoptions->cansaveasnew) {
163                 // Not move only form.
164                 $currentgrp[1] = $mform->createElement('checkbox', 'usecurrentcat', '',
165                         get_string('categorycurrentuse', 'question'));
166                 $mform->setDefault('usecurrentcat', 1);
167             }
168             $currentgrp[0]->freeze();
169             $currentgrp[0]->setPersistantFreeze(false);
170             $mform->addGroup($currentgrp, 'currentgrp',
171                     get_string('categorycurrent', 'question'), null, false);
173             $mform->addElement('questioncategory', 'categorymoveto',
174                     get_string('categorymoveto', 'question'),
175                     array('contexts' => array($this->categorycontext)));
176             if ($this->question->formoptions->canedit ||
177                     $this->question->formoptions->cansaveasnew) {
178                 // Not move only form.
179                 $mform->disabledIf('categorymoveto', 'usecurrentcat', 'checked');
180             }
181         }
183         $mform->addElement('text', 'name', get_string('questionname', 'question'),
184                 array('size' => 50));
185         $mform->setType('name', PARAM_TEXT);
186         $mform->addRule('name', null, 'required', null, 'client');
188         $mform->addElement('editor', 'questiontext', get_string('questiontext', 'question'),
189                 array('rows' => 15), $this->editoroptions);
190         $mform->setType('questiontext', PARAM_RAW);
191         $mform->addRule('questiontext', null, 'required', null, 'client');
193         $mform->addElement('text', 'defaultmark', get_string('defaultmark', 'question'),
194                 array('size' => 7));
195         $mform->setType('defaultmark', PARAM_FLOAT);
196         $mform->setDefault('defaultmark', 1);
197         $mform->addRule('defaultmark', null, 'required', null, 'client');
199         $mform->addElement('editor', 'generalfeedback', get_string('generalfeedback', 'question'),
200                 array('rows' => 10), $this->editoroptions);
201         $mform->setType('generalfeedback', PARAM_RAW);
202         $mform->addHelpButton('generalfeedback', 'generalfeedback', 'question');
204         // Any questiontype specific fields.
205         $this->definition_inner($mform);
207         if (!empty($CFG->usetags)) {
208             $mform->addElement('header', 'tagsheader', get_string('tags'));
209             $mform->addElement('tags', 'tags', get_string('tags'));
210         }
212         if (!empty($this->question->id)) {
213             $mform->addElement('header', 'createdmodifiedheader',
214                     get_string('createdmodifiedheader', 'question'));
215             $a = new stdClass();
216             if (!empty($this->question->createdby)) {
217                 $a->time = userdate($this->question->timecreated);
218                 $a->user = fullname($DB->get_record(
219                         'user', array('id' => $this->question->createdby)));
220             } else {
221                 $a->time = get_string('unknown', 'question');
222                 $a->user = get_string('unknown', 'question');
223             }
224             $mform->addElement('static', 'created', get_string('created', 'question'),
225                      get_string('byandon', 'question', $a));
226             if (!empty($this->question->modifiedby)) {
227                 $a = new stdClass();
228                 $a->time = userdate($this->question->timemodified);
229                 $a->user = fullname($DB->get_record(
230                         'user', array('id' => $this->question->modifiedby)));
231                 $mform->addElement('static', 'modified', get_string('modified', 'question'),
232                         get_string('byandon', 'question', $a));
233             }
234         }
236         $this->add_hidden_fields();
238         $mform->addElement('hidden', 'movecontext');
239         $mform->setType('movecontext', PARAM_BOOL);
241         $mform->addElement('hidden', 'qtype');
242         $mform->setType('qtype', PARAM_ALPHA);
244         $buttonarray = array();
245         if (!empty($this->question->id)) {
246             // Editing / moving question.
247             if ($this->question->formoptions->movecontext) {
248                 $buttonarray[] = $mform->createElement('submit', 'submitbutton',
249                         get_string('moveq', 'question'));
250             } else if ($this->question->formoptions->canedit) {
251                 $buttonarray[] = $mform->createElement('submit', 'submitbutton',
252                         get_string('savechanges'));
253             }
254             if ($this->question->formoptions->cansaveasnew) {
255                 $buttonarray[] = $mform->createElement('submit', 'makecopy',
256                         get_string('makecopy', 'question'));
257             }
258             $buttonarray[] = $mform->createElement('cancel');
259         } else {
260             // Adding new question.
261             $buttonarray[] = $mform->createElement('submit', 'submitbutton',
262                     get_string('savechanges'));
263             $buttonarray[] = $mform->createElement('cancel');
264         }
265         $mform->addGroup($buttonarray, 'buttonar', '', array(' '), false);
266         $mform->closeHeaderBefore('buttonar');
268         if ($this->question->formoptions->movecontext) {
269             $mform->hardFreezeAllVisibleExcept(array('categorymoveto', 'buttonar'));
270         } else if ((!empty($this->question->id)) && (!($this->question->formoptions->canedit ||
271                 $this->question->formoptions->cansaveasnew))) {
272             $mform->hardFreezeAllVisibleExcept(array('categorymoveto', 'buttonar', 'currentgrp'));
273         }
274     }
276     /**
277      * Add any question-type specific form fields.
278      *
279      * @param object $mform the form being built.
280      */
281     protected function definition_inner($mform) {
282         // By default, do nothing.
283     }
285     /**
286      * Get the list of form elements to repeat, one for each answer.
287      * @param object $mform the form being built.
288      * @param $label the label to use for each option.
289      * @param $gradeoptions the possible grades for each answer.
290      * @param $repeatedoptions reference to array of repeated options to fill
291      * @param $answersoption reference to return the name of $question->options
292      *      field holding an array of answers
293      * @return array of form fields.
294      */
295     protected function get_per_answer_fields($mform, $label, $gradeoptions,
296             &$repeatedoptions, &$answersoption) {
297         $repeated = array();
298         $answeroptions = array();
299         $answeroptions[] = $mform->createElement('text', 'answer',
300                 $label, array('size' => 40));
301         $answeroptions[] = $mform->createElement('select', 'fraction',
302                 get_string('grade'), $gradeoptions);
303         $repeated[] = $mform->createElement('group', 'answeroptions',
304                  $label, $answeroptions, null, false);
305         $repeated[] = $mform->createElement('editor', 'feedback',
306                 get_string('feedback', 'question'), array('rows' => 5), $this->editoroptions);
307         $repeatedoptions['answer']['type'] = PARAM_RAW;
308         $repeatedoptions['fraction']['default'] = 0;
309         $answersoption = 'answers';
310         return $repeated;
311     }
313     /**
314      * Add a set of form fields, obtained from get_per_answer_fields, to the form,
315      * one for each existing answer, with some blanks for some new ones.
316      * @param object $mform the form being built.
317      * @param $label the label to use for each option.
318      * @param $gradeoptions the possible grades for each answer.
319      * @param $minoptions the minimum number of answer blanks to display.
320      *      Default QUESTION_NUMANS_START.
321      * @param $addoptions the number of answer blanks to add. Default QUESTION_NUMANS_ADD.
322      */
323     protected function add_per_answer_fields(&$mform, $label, $gradeoptions,
324             $minoptions = QUESTION_NUMANS_START, $addoptions = QUESTION_NUMANS_ADD) {
325         $mform->addElement('header', 'answerhdr',
326                     get_string('answers', 'question'), '');
327         $mform->setExpanded('answerhdr', 1);
328         $answersoption = '';
329         $repeatedoptions = array();
330         $repeated = $this->get_per_answer_fields($mform, $label, $gradeoptions,
331                 $repeatedoptions, $answersoption);
333         if (isset($this->question->options)) {
334             $repeatsatstart = count($this->question->options->$answersoption);
335         } else {
336             $repeatsatstart = $minoptions;
337         }
339         $this->repeat_elements($repeated, $repeatsatstart, $repeatedoptions,
340                 'noanswers', 'addanswers', $addoptions,
341                 $this->get_more_choices_string(), true);
342     }
344     /**
345      * Language string to use for 'Add {no} more {whatever we call answers}'.
346      */
347     protected function get_more_choices_string() {
348         return get_string('addmorechoiceblanks', 'question');
349     }
351     protected function add_combined_feedback_fields($withshownumpartscorrect = false) {
352         $mform = $this->_form;
354         $mform->addElement('header', 'combinedfeedbackhdr',
355                 get_string('combinedfeedback', 'question'));
357         $fields = array('correctfeedback', 'partiallycorrectfeedback', 'incorrectfeedback');
358         foreach ($fields as $feedbackname) {
359             $element = $mform->addElement('editor', $feedbackname,
360                                 get_string($feedbackname, 'question'),
361                                 array('rows' => 5), $this->editoroptions);
362             $mform->setType($feedbackname, PARAM_RAW);
363             // Using setValue() as setDefault() does not work for the editor class.
364             $element->setValue(array('text'=>get_string($feedbackname.'default', 'question')));
366             if ($withshownumpartscorrect && $feedbackname == 'partiallycorrectfeedback') {
367                 $mform->addElement('advcheckbox', 'shownumcorrect',
368                         get_string('options', 'question'),
369                         get_string('shownumpartscorrectwhenfinished', 'question'));
370                 $mform->setDefault('shownumcorrect', true);
371             }
372         }
373     }
375     /**
376      * Create the form elements required by one hint.
377      * @param string $withclearwrong whether this quesiton type uses the 'Clear wrong' option on hints.
378      * @param string $withshownumpartscorrect whether this quesiton type uses the 'Show num parts correct' option on hints.
379      * @return array form field elements for one hint.
380      */
381     protected function get_hint_fields($withclearwrong = false, $withshownumpartscorrect = false) {
382         $mform = $this->_form;
384         $repeatedoptions = array();
385         $repeated = array();
386         $repeated[] = $mform->createElement('editor', 'hint', get_string('hintn', 'question'),
387                 array('rows' => 5), $this->editoroptions);
388         $repeatedoptions['hint']['type'] = PARAM_RAW;
390         $optionelements = array();
391         if ($withclearwrong) {
392             $optionelements[] = $mform->createElement('advcheckbox', 'hintclearwrong',
393                     get_string('options', 'question'), get_string('clearwrongparts', 'question'));
394         }
395         if ($withshownumpartscorrect) {
396             $optionelements[] = $mform->createElement('advcheckbox', 'hintshownumcorrect', '',
397                     get_string('shownumpartscorrect', 'question'));
398         }
400         if (count($optionelements)) {
401             $repeated[] = $mform->createElement('group', 'hintoptions',
402                  get_string('hintnoptions', 'question'), $optionelements, null, false);
403         }
405         return array($repeated, $repeatedoptions);
406     }
408     protected function add_interactive_settings($withclearwrong = false,
409             $withshownumpartscorrect = false) {
410         $mform = $this->_form;
412         $mform->addElement('header', 'multitriesheader',
413                 get_string('settingsformultipletries', 'question'));
415         $penalties = array(
416             1.0000000,
417             0.5000000,
418             0.3333333,
419             0.2500000,
420             0.2000000,
421             0.1000000,
422             0.0000000
423         );
424         if (!empty($this->question->penalty) && !in_array($this->question->penalty, $penalties)) {
425             $penalties[] = $this->question->penalty;
426             sort($penalties);
427         }
428         $penaltyoptions = array();
429         foreach ($penalties as $penalty) {
430             $penaltyoptions["$penalty"] = (100 * $penalty) . '%';
431         }
432         $mform->addElement('select', 'penalty',
433                 get_string('penaltyforeachincorrecttry', 'question'), $penaltyoptions);
434         $mform->addHelpButton('penalty', 'penaltyforeachincorrecttry', 'question');
435         $mform->setDefault('penalty', 0.3333333);
437         if (isset($this->question->hints)) {
438             $counthints = count($this->question->hints);
439         } else {
440             $counthints = 0;
441         }
443         if ($this->question->formoptions->repeatelements) {
444             $repeatsatstart = max(self::DEFAULT_NUM_HINTS, $counthints);
445         } else {
446             $repeatsatstart = $counthints;
447         }
449         list($repeated, $repeatedoptions) = $this->get_hint_fields(
450                 $withclearwrong, $withshownumpartscorrect);
451         $this->repeat_elements($repeated, $repeatsatstart, $repeatedoptions,
452                 'numhints', 'addhint', 1, get_string('addanotherhint', 'question'), true);
453     }
455     public function set_data($question) {
456         question_bank::get_qtype($question->qtype)->set_default_options($question);
458         // Prepare question text.
459         $draftid = file_get_submitted_draft_itemid('questiontext');
461         if (!empty($question->questiontext)) {
462             $questiontext = $question->questiontext;
463         } else {
464             $questiontext = $this->_form->getElement('questiontext')->getValue();
465             $questiontext = $questiontext['text'];
466         }
467         $questiontext = file_prepare_draft_area($draftid, $this->context->id,
468                 'question', 'questiontext', empty($question->id) ? null : (int) $question->id,
469                 $this->fileoptions, $questiontext);
471         $question->questiontext = array();
472         $question->questiontext['text'] = $questiontext;
473         $question->questiontext['format'] = empty($question->questiontextformat) ?
474                 editors_get_preferred_format() : $question->questiontextformat;
475         $question->questiontext['itemid'] = $draftid;
477         // Prepare general feedback.
478         $draftid = file_get_submitted_draft_itemid('generalfeedback');
480         if (empty($question->generalfeedback)) {
481             $generalfeedback = $this->_form->getElement('generalfeedback')->getValue();
482             $question->generalfeedback = $generalfeedback['text'];
483         }
485         $feedback = file_prepare_draft_area($draftid, $this->context->id,
486                 'question', 'generalfeedback', empty($question->id) ? null : (int) $question->id,
487                 $this->fileoptions, $question->generalfeedback);
488         $question->generalfeedback = array();
489         $question->generalfeedback['text'] = $feedback;
490         $question->generalfeedback['format'] = empty($question->generalfeedbackformat) ?
491                 editors_get_preferred_format() : $question->generalfeedbackformat;
492         $question->generalfeedback['itemid'] = $draftid;
494         // Remove unnecessary trailing 0s form grade fields.
495         if (isset($question->defaultgrade)) {
496             $question->defaultgrade = 0 + $question->defaultgrade;
497         }
498         if (isset($question->penalty)) {
499             $question->penalty = 0 + $question->penalty;
500         }
502         // Set any options.
503         $extraquestionfields = question_bank::get_qtype($question->qtype)->extra_question_fields();
504         if (is_array($extraquestionfields) && !empty($question->options)) {
505             array_shift($extraquestionfields);
506             foreach ($extraquestionfields as $field) {
507                 if (property_exists($question->options, $field)) {
508                     $question->$field = $question->options->$field;
509                 }
510             }
511         }
513         // Subclass adds data_preprocessing code here.
514         $question = $this->data_preprocessing($question);
516         parent::set_data($question);
517     }
519     /**
520      * Perform an preprocessing needed on the data passed to {@link set_data()}
521      * before it is used to initialise the form.
522      * @param object $question the data being passed to the form.
523      * @return object $question the modified data.
524      */
525     protected function data_preprocessing($question) {
526         return $question;
527     }
529     /**
530      * Perform the necessary preprocessing for the fields added by
531      * {@link add_per_answer_fields()}.
532      * @param object $question the data being passed to the form.
533      * @return object $question the modified data.
534      */
535     protected function data_preprocessing_answers($question, $withanswerfiles = false) {
536         if (empty($question->options->answers)) {
537             return $question;
538         }
540         $key = 0;
541         foreach ($question->options->answers as $answer) {
542             if ($withanswerfiles) {
543                 // Prepare the feedback editor to display files in draft area.
544                 $draftitemid = file_get_submitted_draft_itemid('answer['.$key.']');
545                 $question->answer[$key]['text'] = file_prepare_draft_area(
546                     $draftitemid,          // Draftid
547                     $this->context->id,    // context
548                     'question',            // component
549                     'answer',              // filarea
550                     !empty($answer->id) ? (int) $answer->id : null, // itemid
551                     $this->fileoptions,    // options
552                     $answer->answer        // text.
553                 );
554                 $question->answer[$key]['itemid'] = $draftitemid;
555                 $question->answer[$key]['format'] = $answer->answerformat;
556             } else {
557                 $question->answer[$key] = $answer->answer;
558             }
560             $question->fraction[$key] = 0 + $answer->fraction;
561             $question->feedback[$key] = array();
563             // Evil hack alert. Formslib can store defaults in two ways for
564             // repeat elements:
565             //   ->_defaultValues['fraction[0]'] and
566             //   ->_defaultValues['fraction'][0].
567             // The $repeatedoptions['fraction']['default'] = 0 bit above means
568             // that ->_defaultValues['fraction[0]'] has already been set, but we
569             // are using object notation here, so we will be setting
570             // ->_defaultValues['fraction'][0]. That does not work, so we have
571             // to unset ->_defaultValues['fraction[0]'].
572             unset($this->_form->_defaultValues["fraction[$key]"]);
574             // Prepare the feedback editor to display files in draft area.
575             $draftitemid = file_get_submitted_draft_itemid('feedback['.$key.']');
576             $question->feedback[$key]['text'] = file_prepare_draft_area(
577                 $draftitemid,          // Draftid
578                 $this->context->id,    // context
579                 'question',            // component
580                 'answerfeedback',      // filarea
581                 !empty($answer->id) ? (int) $answer->id : null, // itemid
582                 $this->fileoptions,    // options
583                 $answer->feedback      // text.
584             );
585             $question->feedback[$key]['itemid'] = $draftitemid;
586             $question->feedback[$key]['format'] = $answer->feedbackformat;
587             $key++;
588         }
589         return $question;
590     }
592     /**
593      * Perform the necessary preprocessing for the fields added by
594      * {@link add_combined_feedback_fields()}.
595      * @param object $question the data being passed to the form.
596      * @return object $question the modified data.
597      */
598     protected function data_preprocessing_combined_feedback($question,
599             $withshownumcorrect = false) {
600         if (empty($question->options)) {
601             return $question;
602         }
604         $fields = array('correctfeedback', 'partiallycorrectfeedback', 'incorrectfeedback');
605         foreach ($fields as $feedbackname) {
606             $draftid = file_get_submitted_draft_itemid($feedbackname);
607             $feedback = array();
608             $feedback['text'] = file_prepare_draft_area(
609                 $draftid,              // Draftid
610                 $this->context->id,    // context
611                 'question',            // component
612                 $feedbackname,         // filarea
613                 !empty($question->id) ? (int) $question->id : null, // itemid
614                 $this->fileoptions,    // options
615                 $question->options->$feedbackname // text.
616             );
617             $feedbackformat = $feedbackname . 'format';
618             $feedback['format'] = $question->options->$feedbackformat;
619             $feedback['itemid'] = $draftid;
621             $question->$feedbackname = $feedback;
622         }
624         if ($withshownumcorrect) {
625             $question->shownumcorrect = $question->options->shownumcorrect;
626         }
628         return $question;
629     }
631     /**
632      * Perform the necessary preprocessing for the hint fields.
633      * @param object $question the data being passed to the form.
634      * @return object $question the modified data.
635      */
636     protected function data_preprocessing_hints($question, $withclearwrong = false,
637             $withshownumpartscorrect = false) {
638         if (empty($question->hints)) {
639             return $question;
640         }
642         $key = 0;
643         foreach ($question->hints as $hint) {
644             $question->hint[$key] = array();
646             // Prepare feedback editor to display files in draft area.
647             $draftitemid = file_get_submitted_draft_itemid('hint['.$key.']');
648             $question->hint[$key]['text'] = file_prepare_draft_area(
649                 $draftitemid,          // Draftid
650                 $this->context->id,    // context
651                 'question',            // component
652                 'hint',                // filarea
653                 !empty($hint->id) ? (int) $hint->id : null, // itemid
654                 $this->fileoptions,    // options
655                 $hint->hint            // text.
656             );
657             $question->hint[$key]['itemid'] = $draftitemid;
658             $question->hint[$key]['format'] = $hint->hintformat;
659             $key++;
661             if ($withclearwrong) {
662                 $question->hintclearwrong[] = $hint->clearwrong;
663             }
664             if ($withshownumpartscorrect) {
665                 $question->hintshownumcorrect[] = $hint->shownumcorrect;
666             }
667         }
669         return $question;
670     }
672     public function validation($fromform, $files) {
673         $errors = parent::validation($fromform, $files);
674         if (empty($fromform['makecopy']) && isset($this->question->id)
675                 && ($this->question->formoptions->canedit ||
676                         $this->question->formoptions->cansaveasnew)
677                 && empty($fromform['usecurrentcat']) && !$this->question->formoptions->canmove) {
678             $errors['currentgrp'] = get_string('nopermissionmove', 'question');
679         }
681         // Default mark.
682         if (array_key_exists('defaultmark', $fromform) && $fromform['defaultmark'] < 0) {
683             $errors['defaultmark'] = get_string('defaultmarkmustbepositive', 'question');
684         }
686         return $errors;
687     }
689     /**
690      * Override this in the subclass to question type name.
691      * @return the question type name, should be the same as the name() method
692      *      in the question type class.
693      */
694     public abstract function qtype();
696     /**
697      * Returns an array of editor options with collapsed options turned off.
698      * @deprecated since 2.6
699      * @return array
700      */
701     protected function get_non_collabsible_editor_options() {
702         debugging('get_non_collabsible_editor_options() is deprecated, use $this->editoroptions instead.', DEBUG_DEVELOPER);
703         return $this->editoroptions;
704     }