mirrored from git://git.moodle.org/moodle.git
-
Notifications
You must be signed in to change notification settings - Fork 6.4k
/
edit_question_form.php
922 lines (798 loc) · 39.7 KB
/
edit_question_form.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
<?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/>.
/**
* A base class for question editing forms.
*
* @package moodlecore
* @subpackage questiontypes
* @copyright 2006 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU Public License
*/
defined('MOODLE_INTERNAL') || die();
global $CFG;
require_once($CFG->libdir.'/formslib.php');
abstract class question_wizard_form extends moodleform {
/**
* Add all the hidden form fields used by question/question.php.
*/
protected function add_hidden_fields() {
$mform = $this->_form;
$mform->addElement('hidden', 'id');
$mform->setType('id', PARAM_INT);
$mform->addElement('hidden', 'inpopup');
$mform->setType('inpopup', PARAM_INT);
$mform->addElement('hidden', 'cmid');
$mform->setType('cmid', PARAM_INT);
$mform->addElement('hidden', 'courseid');
$mform->setType('courseid', PARAM_INT);
$mform->addElement('hidden', 'returnurl');
$mform->setType('returnurl', PARAM_LOCALURL);
$mform->addElement('hidden', 'scrollpos');
$mform->setType('scrollpos', PARAM_INT);
$mform->addElement('hidden', 'appendqnumstring');
$mform->setType('appendqnumstring', PARAM_ALPHA);
}
}
/**
* Form definition base class. This defines the common fields that
* all question types need. Question types should define their own
* class that inherits from this one, and implements the definition_inner()
* method.
*
* @copyright 2006 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU Public License
*/
abstract class question_edit_form extends question_wizard_form {
const DEFAULT_NUM_HINTS = 2;
/**
* Question object with options and answers already loaded by get_question_options
* Be careful how you use this it is needed sometimes to set up the structure of the
* form in definition_inner but data is always loaded into the form with set_data.
* @var object
*/
protected $question;
protected $contexts;
protected $category;
protected $categorycontext;
/** @var object current context */
public $context;
/** @var array html editor options */
public $editoroptions;
/** @var array options to preapre draft area */
public $fileoptions;
/** @var object instance of question type */
public $instance;
/** @var object instance of custom field */
protected $customfieldhandler;
/** @var bool custom field plugin enabled or disabled*/
protected $customfieldpluginenabled = true;
public function __construct($submiturl, $question, $category, $contexts, $formeditable = true) {
global $DB;
$this->question = $question;
$this->contexts = $contexts;
// Get the question category id.
if (isset($question->id)) {
$qcategory = $question->categoryobject->id ?? get_question_bank_entry($question->id)->questioncategoryid;
} else {
$qcategory = $question->category;
}
$record = $DB->get_record('question_categories',
array('id' => $qcategory), 'contextid');
$this->context = context::instance_by_id($record->contextid);
$this->editoroptions = array('subdirs' => 1, 'maxfiles' => EDITOR_UNLIMITED_FILES,
'context' => $this->context);
$this->fileoptions = array('subdirs' => 1, 'maxfiles' => -1, 'maxbytes' => -1);
$this->category = $category;
$this->categorycontext = context::instance_by_id($category->contextid);
if (!\core\plugininfo\qbank::is_plugin_enabled('qbank_customfields')) {
$this->customfieldpluginenabled = false;
}
parent::__construct($submiturl, null, 'post', '', ['data-qtype' => $this->qtype()], $formeditable);
}
/**
* Return default value for a given form element either from user_preferences table or $default.
*
* To make use of user_preferences in your qtype default settings, you need to replace
* $mform->setDefault({elementname}, {defaultvalue}); in edit_{qtypename}_form.php with
* $mform->setDefault({elementname}, $this->get_default_value({elementname}, {defaultvalue}));
*
* @param string $name the name of the form field.
* @param mixed $default default value.
* @return string|null default value for a given form element.
*/
protected function get_default_value(string $name, $default): ?string {
return question_bank::get_qtype($this->qtype())->get_default_value($name, $default);
}
/**
* Build the form definition.
*
* This adds all the form fields that the default question type supports.
* If your question type does not support all these fields, then you can
* override this method and remove the ones you don't want with $mform->removeElement().
*/
protected function definition() {
global $DB, $PAGE;
$mform = $this->_form;
// Standard fields at the start of the form.
$mform->addElement('header', 'generalheader', get_string("general", 'form'));
if (!isset($this->question->id)) {
if (!empty($this->question->formoptions->mustbeusable)) {
$contexts = $this->contexts->having_add_and_use();
} else {
$contexts = $this->contexts->having_cap('moodle/question:add');
}
// Adding question.
$mform->addElement('questioncategory', 'category', get_string('category', 'question'),
array('contexts' => $contexts));
} else if (!($this->question->formoptions->canmove ||
$this->question->formoptions->cansaveasnew)) {
// Editing question with no permission to move from category.
$mform->addElement('questioncategory', 'category', get_string('category', 'question'),
array('contexts' => array($this->categorycontext)));
$mform->addElement('hidden', 'usecurrentcat', 1);
$mform->setType('usecurrentcat', PARAM_BOOL);
$mform->setConstant('usecurrentcat', 1);
} else {
// Editing question with permission to move from category or save as new q.
$currentgrp = array();
$currentgrp[0] = $mform->createElement('questioncategory', 'category',
get_string('categorycurrent', 'question'),
array('contexts' => array($this->categorycontext)));
// Validate if the question is being duplicated.
$beingcopied = false;
if (isset($this->question->beingcopied)) {
$beingcopied = $this->question->beingcopied;
}
if (($this->question->formoptions->canedit ||
$this->question->formoptions->cansaveasnew) && ($beingcopied)) {
// Not move only form.
$currentgrp[1] = $mform->createElement('checkbox', 'usecurrentcat', '',
get_string('categorycurrentuse', 'question'));
$mform->setDefault('usecurrentcat', 1);
}
$currentgrp[0]->freeze();
$currentgrp[0]->setPersistantFreeze(false);
$mform->addGroup($currentgrp, 'currentgrp',
get_string('categorycurrent', 'question'), null, false);
if (($beingcopied)) {
$mform->addElement('questioncategory', 'categorymoveto',
get_string('categorymoveto', 'question'),
array('contexts' => array($this->categorycontext)));
if ($this->question->formoptions->canedit ||
$this->question->formoptions->cansaveasnew) {
// Not move only form.
$mform->disabledIf('categorymoveto', 'usecurrentcat', 'checked');
}
}
}
if (!empty($this->question->id) && !$this->question->beingcopied) {
// Add extra information from plugins when editing a question (e.g.: Authors, version control and usage).
$functionname = 'edit_form_display';
$questiondata = [];
$plugins = get_plugin_list_with_function('qbank', $functionname);
foreach ($plugins as $componentname => $plugin) {
$element = new StdClass();
$element->pluginhtml = component_callback($componentname, $functionname, [$this->question]);
$questiondata['editelements'][] = $element;
}
$mform->addElement('static', 'versioninfo', get_string('versioninfo', 'qbank_editquestion'),
$PAGE->get_renderer('qbank_editquestion')->render_question_info($questiondata));
}
$mform->addElement('text', 'name', get_string('questionname', 'question'),
array('size' => 50, 'maxlength' => 255));
$mform->setType('name', PARAM_TEXT);
$mform->addRule('name', null, 'required', null, 'client');
$mform->addElement('editor', 'questiontext', get_string('questiontext', 'question'),
array('rows' => 15), $this->editoroptions);
$mform->setType('questiontext', PARAM_RAW);
$mform->addRule('questiontext', null, 'required', null, 'client');
$mform->addElement('select', 'status', get_string('status', 'qbank_editquestion'),
\qbank_editquestion\editquestion_helper::get_question_status_list());
$mform->addElement('float', 'defaultmark', get_string('defaultmark', 'question'),
array('size' => 7));
$mform->setDefault('defaultmark', $this->get_default_value('defaultmark', 1));
$mform->addRule('defaultmark', null, 'required', null, 'client');
$mform->addElement('editor', 'generalfeedback', get_string('generalfeedback', 'question'),
array('rows' => 10), $this->editoroptions);
$mform->setType('generalfeedback', PARAM_RAW);
$mform->addHelpButton('generalfeedback', 'generalfeedback', 'question');
$mform->addElement('text', 'idnumber', get_string('idnumber', 'question'), 'maxlength="100" size="10"');
$mform->addHelpButton('idnumber', 'idnumber', 'question');
$mform->setType('idnumber', PARAM_RAW);
// Any questiontype specific fields.
$this->definition_inner($mform);
if (core_tag_tag::is_enabled('core_question', 'question')
&& class_exists('qbank_tagquestion\\tags_action_column')
&& \core\plugininfo\qbank::is_plugin_enabled('qbank_tagquestion')) {
$this->add_tag_fields($mform);
}
if ($this->customfieldpluginenabled) {
// Add custom fields to the form.
$this->customfieldhandler = qbank_customfields\customfield\question_handler::create();
$this->customfieldhandler->set_parent_context($this->categorycontext); // For question handler only.
$this->customfieldhandler->instance_form_definition($mform, empty($this->question->id) ? 0 : $this->question->id);
}
$this->add_hidden_fields();
$mform->addElement('hidden', 'qtype');
$mform->setType('qtype', PARAM_ALPHA);
$mform->addElement('hidden', 'makecopy');
$mform->setType('makecopy', PARAM_INT);
$buttonarray = array();
$buttonarray[] = $mform->createElement('submit', 'updatebutton',
get_string('savechangesandcontinueediting', 'question'));
if ($this->can_preview()) {
if (\core\plugininfo\qbank::is_plugin_enabled('qbank_previewquestion')) {
$previewlink = $PAGE->get_renderer('qbank_previewquestion')->question_preview_link(
$this->question->id, $this->context, true);
$buttonarray[] = $mform->createElement('static', 'previewlink', '', $previewlink);
}
}
$mform->addGroup($buttonarray, 'updatebuttonar', '', array(' '), false);
$mform->closeHeaderBefore('updatebuttonar');
$this->add_action_buttons(true, get_string('savechanges'));
if ((!empty($this->question->id)) && (!($this->question->formoptions->canedit ||
$this->question->formoptions->cansaveasnew))) {
$mform->hardFreezeAllVisibleExcept(array('categorymoveto', 'buttonar', 'currentgrp'));
}
}
/**
* Add any question-type specific form fields.
*
* @param object $mform the form being built.
*/
protected function definition_inner($mform) {
// By default, do nothing.
}
/**
* Tweak the form with values provided by custom fields in use.
*/
public function definition_after_data() {
$mform = $this->_form;
if ($this->customfieldpluginenabled) {
$this->customfieldhandler->instance_form_definition_after_data($mform,
empty($this->question->id) ? 0 : $this->question->id);
}
}
/**
* Is the question being edited in a state where it can be previewed?
* @return bool whether to show the preview link.
*/
protected function can_preview() {
return empty($this->question->beingcopied) && !empty($this->question->id) &&
$this->question->formoptions->canedit;
}
/**
* Get the list of form elements to repeat, one for each answer.
* @param object $mform the form being built.
* @param $label the label to use for each option.
* @param $gradeoptions the possible grades for each answer.
* @param $repeatedoptions reference to array of repeated options to fill
* @param $answersoption reference to return the name of $question->options
* field holding an array of answers
* @return array of form fields.
*/
protected function get_per_answer_fields($mform, $label, $gradeoptions,
&$repeatedoptions, &$answersoption) {
$repeated = array();
$answeroptions = array();
$answeroptions[] = $mform->createElement('text', 'answer',
$label, array('size' => 40));
$answeroptions[] = $mform->createElement('select', 'fraction',
get_string('gradenoun'), $gradeoptions);
$repeated[] = $mform->createElement('group', 'answeroptions',
$label, $answeroptions, null, false);
$repeated[] = $mform->createElement('editor', 'feedback',
get_string('feedback', 'question'), array('rows' => 5), $this->editoroptions);
$repeatedoptions['answer']['type'] = PARAM_RAW;
$repeatedoptions['fraction']['default'] = 0;
$answersoption = 'answers';
return $repeated;
}
/**
* Add the tag and course tag fields to the mform.
*
* If the form is being built in a course context then add the field
* for course tags.
*
* If the question category doesn't belong to a course context or we
* aren't editing in a course context then add the tags element to allow
* tags to be added to the question category context.
*
* @param object $mform The form being built
*/
protected function add_tag_fields($mform) {
global $CFG, $DB;
$hastagcapability = question_has_capability_on($this->question, 'tag');
// Is the question category in a course context?
$qcontext = $this->categorycontext;
$qcoursecontext = $qcontext->get_course_context(false);
$iscourseoractivityquestion = !empty($qcoursecontext);
// Is the current context we're editing in a course context?
$editingcontext = $this->contexts->lowest();
$editingcoursecontext = $editingcontext->get_course_context(false);
$iseditingcontextcourseoractivity = !empty($editingcoursecontext);
$mform->addElement('header', 'tagsheader', get_string('tags'));
$tags = \core_tag_tag::get_tags_by_area_in_contexts('core_question', 'question', $this->contexts->all());
$tagstrings = [];
foreach ($tags as $tag) {
$tagstrings[$tag->name] = $tag->name;
}
$showstandard = core_tag_area::get_showstandard('core_question', 'question');
if ($showstandard != core_tag_tag::HIDE_STANDARD) {
$namefield = empty($CFG->keeptagnamecase) ? 'name' : 'rawname';
$standardtags = $DB->get_records('tag',
array('isstandard' => 1, 'tagcollid' => core_tag_area::get_collection('core', 'question')),
$namefield, 'id,' . $namefield);
foreach ($standardtags as $standardtag) {
$tagstrings[$standardtag->$namefield] = $standardtag->$namefield;
}
}
$options = [
'tags' => true,
'multiple' => true,
'noselectionstring' => get_string('anytags', 'quiz'),
];
$mform->addElement('autocomplete', 'tags', get_string('tags'), $tagstrings, $options);
if (!$hastagcapability) {
$mform->hardFreeze('tags');
}
if ($iseditingcontextcourseoractivity && !$iscourseoractivityquestion) {
// If the question is being edited in a course or activity context
// and the question isn't a course or activity level question then
// allow course tags to be added to the course.
$coursetagheader = get_string('questionformtagheader', 'core_question',
$editingcoursecontext->get_context_name(true));
$mform->addElement('header', 'coursetagsheader', $coursetagheader);
$mform->addElement('autocomplete', 'coursetags', get_string('tags'), $tagstrings, $options);
if (!$hastagcapability) {
$mform->hardFreeze('coursetags');
}
}
}
/**
* Add a set of form fields, obtained from get_per_answer_fields, to the form,
* one for each existing answer, with some blanks for some new ones.
* @param object $mform the form being built.
* @param $label the label to use for each option.
* @param $gradeoptions the possible grades for each answer.
* @param $minoptions the minimum number of answer blanks to display.
* Default QUESTION_NUMANS_START.
* @param $addoptions the number of answer blanks to add. Default QUESTION_NUMANS_ADD.
*/
protected function add_per_answer_fields(&$mform, $label, $gradeoptions,
$minoptions = QUESTION_NUMANS_START, $addoptions = QUESTION_NUMANS_ADD) {
$mform->addElement('header', 'answerhdr',
get_string('answers', 'question'), '');
$mform->setExpanded('answerhdr', 1);
$answersoption = '';
$repeatedoptions = array();
$repeated = $this->get_per_answer_fields($mform, $label, $gradeoptions,
$repeatedoptions, $answersoption);
if (isset($this->question->options)) {
$repeatsatstart = count($this->question->options->$answersoption);
} else {
$repeatsatstart = $minoptions;
}
$this->repeat_elements($repeated, $repeatsatstart, $repeatedoptions,
'noanswers', 'addanswers', $addoptions,
$this->get_more_choices_string(), true);
}
/**
* Language string to use for 'Add {no} more {whatever we call answers}'.
*/
protected function get_more_choices_string() {
return get_string('addmorechoiceblanks', 'question');
}
protected function add_combined_feedback_fields($withshownumpartscorrect = false) {
$mform = $this->_form;
$mform->addElement('header', 'combinedfeedbackhdr',
get_string('combinedfeedback', 'question'));
$fields = array('correctfeedback', 'partiallycorrectfeedback', 'incorrectfeedback');
foreach ($fields as $feedbackname) {
$element = $mform->addElement('editor', $feedbackname,
get_string($feedbackname, 'question'),
array('rows' => 5), $this->editoroptions);
$mform->setType($feedbackname, PARAM_RAW);
// Using setValue() as setDefault() does not work for the editor class.
$element->setValue(array('text' => get_string($feedbackname.'default', 'question')));
if ($withshownumpartscorrect && $feedbackname == 'partiallycorrectfeedback') {
$mform->addElement('advcheckbox', 'shownumcorrect',
get_string('options', 'question'),
get_string('shownumpartscorrectwhenfinished', 'question'));
$mform->setDefault('shownumcorrect', true);
}
}
}
/**
* Create the form elements required by one hint.
* @param string $withclearwrong whether this quesiton type uses the 'Clear wrong' option on hints.
* @param string $withshownumpartscorrect whether this quesiton type uses the 'Show num parts correct' option on hints.
* @return array form field elements for one hint.
*/
protected function get_hint_fields($withclearwrong = false, $withshownumpartscorrect = false) {
$mform = $this->_form;
$repeatedoptions = array();
$repeated = array();
$repeated[] = $mform->createElement('editor', 'hint', get_string('hintn', 'question'),
array('rows' => 5), $this->editoroptions);
$repeatedoptions['hint']['type'] = PARAM_RAW;
$optionelements = array();
if ($withclearwrong) {
$optionelements[] = $mform->createElement('advcheckbox', 'hintclearwrong',
get_string('options', 'question'), get_string('clearwrongparts', 'question'));
}
if ($withshownumpartscorrect) {
$optionelements[] = $mform->createElement('advcheckbox', 'hintshownumcorrect', '',
get_string('shownumpartscorrect', 'question'));
}
if (count($optionelements)) {
$repeated[] = $mform->createElement('group', 'hintoptions',
get_string('hintnoptions', 'question'), $optionelements, null, false);
}
return array($repeated, $repeatedoptions);
}
protected function add_interactive_settings($withclearwrong = false,
$withshownumpartscorrect = false) {
$mform = $this->_form;
$mform->addElement('header', 'multitriesheader',
get_string('settingsformultipletries', 'question'));
$penalties = array(
1.0000000,
0.5000000,
0.3333333,
0.2500000,
0.2000000,
0.1000000,
0.0000000
);
if (!empty($this->question->penalty) && !in_array($this->question->penalty, $penalties)) {
$penalties[] = $this->question->penalty;
sort($penalties);
}
$penaltyoptions = array();
foreach ($penalties as $penalty) {
$penaltyoptions["{$penalty}"] = format_float(100 * $penalty, 5, true, true) . '%';
}
$mform->addElement('select', 'penalty',
get_string('penaltyforeachincorrecttry', 'question'), $penaltyoptions);
$mform->addHelpButton('penalty', 'penaltyforeachincorrecttry', 'question');
$mform->setDefault('penalty', $this->get_default_value('penalty', 0.3333333));
if (isset($this->question->hints)) {
$counthints = count($this->question->hints);
} else {
$counthints = 0;
}
if ($this->question->formoptions->repeatelements) {
$repeatsatstart = max(self::DEFAULT_NUM_HINTS, $counthints);
} else {
$repeatsatstart = $counthints;
}
list($repeated, $repeatedoptions) = $this->get_hint_fields(
$withclearwrong, $withshownumpartscorrect);
$this->repeat_elements($repeated, $repeatsatstart, $repeatedoptions,
'numhints', 'addhint', 1, get_string('addanotherhint', 'question'), true);
}
public function set_data($question) {
question_bank::get_qtype($question->qtype)->set_default_options($question);
// Prepare question text.
$draftid = file_get_submitted_draft_itemid('questiontext');
if (!empty($question->questiontext)) {
$questiontext = $question->questiontext;
} else {
$questiontext = $this->_form->getElement('questiontext')->getValue();
$questiontext = $questiontext['text'];
}
$questiontext = file_prepare_draft_area($draftid, $this->context->id,
'question', 'questiontext', empty($question->id) ? null : (int) $question->id,
$this->fileoptions, $questiontext);
$question->questiontext = array();
$question->questiontext['text'] = $questiontext;
$question->questiontext['format'] = empty($question->questiontextformat) ?
editors_get_preferred_format() : $question->questiontextformat;
$question->questiontext['itemid'] = $draftid;
// Prepare general feedback.
$draftid = file_get_submitted_draft_itemid('generalfeedback');
if (empty($question->generalfeedback)) {
$generalfeedback = $this->_form->getElement('generalfeedback')->getValue();
$question->generalfeedback = $generalfeedback['text'];
}
$feedback = file_prepare_draft_area($draftid, $this->context->id,
'question', 'generalfeedback', empty($question->id) ? null : (int) $question->id,
$this->fileoptions, $question->generalfeedback);
$question->generalfeedback = array();
$question->generalfeedback['text'] = $feedback;
$question->generalfeedback['format'] = empty($question->generalfeedbackformat) ?
editors_get_preferred_format() : $question->generalfeedbackformat;
$question->generalfeedback['itemid'] = $draftid;
// Remove unnecessary trailing 0s form grade fields.
if (isset($question->defaultgrade)) {
$question->defaultgrade = 0 + $question->defaultgrade;
}
if (isset($question->penalty)) {
$question->penalty = 0 + $question->penalty;
}
// Set any options.
$extraquestionfields = question_bank::get_qtype($question->qtype)->extra_question_fields();
if (is_array($extraquestionfields) && !empty($question->options)) {
array_shift($extraquestionfields);
foreach ($extraquestionfields as $field) {
if (property_exists($question->options, $field)) {
$question->$field = $question->options->$field;
}
}
}
// Subclass adds data_preprocessing code here.
$question = $this->data_preprocessing($question);
parent::set_data($question);
}
/**
* Perform an preprocessing needed on the data passed to {@link set_data()}
* before it is used to initialise the form.
* @param object $question the data being passed to the form.
* @return object $question the modified data.
*/
protected function data_preprocessing($question) {
return $question;
}
/**
* Perform the necessary preprocessing for the fields added by
* {@link add_per_answer_fields()}.
* @param object $question the data being passed to the form.
* @return object $question the modified data.
*/
protected function data_preprocessing_answers($question, $withanswerfiles = false) {
if (empty($question->options->answers)) {
return $question;
}
$key = 0;
foreach ($question->options->answers as $answer) {
if ($withanswerfiles) {
// Prepare the feedback editor to display files in draft area.
$draftitemid = file_get_submitted_draft_itemid('answer['.$key.']');
$question->answer[$key]['text'] = file_prepare_draft_area(
$draftitemid, // Draftid.
$this->context->id, // Context.
'question', // Component.
'answer', // Filarea.
!empty($answer->id) ? (int) $answer->id : null, // Itemid.
$this->fileoptions, // Options.
$answer->answer // Text.
);
$question->answer[$key]['itemid'] = $draftitemid;
$question->answer[$key]['format'] = $answer->answerformat;
} else {
$question->answer[$key] = $answer->answer;
}
$question->fraction[$key] = 0 + $answer->fraction;
$question->feedback[$key] = array();
// Evil hack alert. Formslib can store defaults in two ways for
// repeat elements:
// ->_defaultValues['fraction[0]'] and
// ->_defaultValues['fraction'][0].
// The $repeatedoptions['fraction']['default'] = 0 bit above means
// that ->_defaultValues['fraction[0]'] has already been set, but we
// are using object notation here, so we will be setting
// ->_defaultValues['fraction'][0]. That does not work, so we have
// to unset ->_defaultValues['fraction[0]'].
unset($this->_form->_defaultValues["fraction[{$key}]"]);
// Prepare the feedback editor to display files in draft area.
$draftitemid = file_get_submitted_draft_itemid('feedback['.$key.']');
$question->feedback[$key]['text'] = file_prepare_draft_area(
$draftitemid, // Draftid.
$this->context->id, // Context.
'question', // Component.
'answerfeedback', // Filarea.
!empty($answer->id) ? (int) $answer->id : null, // Itemid.
$this->fileoptions, // Options.
$answer->feedback // Text.
);
$question->feedback[$key]['itemid'] = $draftitemid;
$question->feedback[$key]['format'] = $answer->feedbackformat;
$key++;
}
// Now process extra answer fields.
$extraanswerfields = question_bank::get_qtype($question->qtype)->extra_answer_fields();
if (is_array($extraanswerfields)) {
// Omit table name.
array_shift($extraanswerfields);
$question = $this->data_preprocessing_extra_answer_fields($question, $extraanswerfields);
}
return $question;
}
/**
* Perform the necessary preprocessing for the extra answer fields.
*
* Questions that do something not trivial when editing extra answer fields
* will want to override this.
* @param object $question the data being passed to the form.
* @param array $extraanswerfields extra answer fields (without table name).
* @return object $question the modified data.
*/
protected function data_preprocessing_extra_answer_fields($question, $extraanswerfields) {
// Setting $question->$field[$key] won't work in PHP, so we need set an array of answer values to $question->$field.
// As we may have several extra fields with data for several answers in each, we use an array of arrays.
// Index in $extrafieldsdata is an extra answer field name, value - array of it's data for each answer.
$extrafieldsdata = array();
// First, prepare an array if empty arrays for each extra answer fields data.
foreach ($extraanswerfields as $field) {
$extrafieldsdata[$field] = array();
}
// Fill arrays with data from $question->options->answers.
$key = 0;
foreach ($question->options->answers as $answer) {
foreach ($extraanswerfields as $field) {
// See hack comment in {@link data_preprocessing_answers()}.
unset($this->_form->_defaultValues["{$field}[{$key}]"]);
$extrafieldsdata[$field][$key] = $this->data_preprocessing_extra_answer_field($answer, $field);
}
$key++;
}
// Set this data in the $question object.
foreach ($extraanswerfields as $field) {
$question->$field = $extrafieldsdata[$field];
}
return $question;
}
/**
* Perfmorm preprocessing for particular extra answer field.
*
* Questions with non-trivial DB - form element relationship will
* want to override this.
* @param object $answer an answer object to get extra field from.
* @param string $field extra answer field name.
* @return field value to be set to the form.
*/
protected function data_preprocessing_extra_answer_field($answer, $field) {
return $answer->$field;
}
/**
* Perform the necessary preprocessing for the fields added by
* {@link add_combined_feedback_fields()}.
* @param object $question the data being passed to the form.
* @return object $question the modified data.
*/
protected function data_preprocessing_combined_feedback($question,
$withshownumcorrect = false) {
if (empty($question->options)) {
return $question;
}
$fields = array('correctfeedback', 'partiallycorrectfeedback', 'incorrectfeedback');
foreach ($fields as $feedbackname) {
$draftid = file_get_submitted_draft_itemid($feedbackname);
$feedback = array();
$feedback['text'] = file_prepare_draft_area(
$draftid, // Draftid.
$this->context->id, // Context.
'question', // Component.
$feedbackname, // Filarea.
!empty($question->id) ? (int) $question->id : null, // Itemid.
$this->fileoptions, // Options.
$question->options->$feedbackname // Text.
);
$feedbackformat = $feedbackname . 'format';
$feedback['format'] = $question->options->$feedbackformat;
$feedback['itemid'] = $draftid;
$question->$feedbackname = $feedback;
}
if ($withshownumcorrect) {
$question->shownumcorrect = $question->options->shownumcorrect;
}
return $question;
}
/**
* Perform the necessary preprocessing for the hint fields.
* @param object $question the data being passed to the form.
* @return object $question the modified data.
*/
protected function data_preprocessing_hints($question, $withclearwrong = false,
$withshownumpartscorrect = false) {
if (empty($question->hints)) {
return $question;
}
$key = 0;
foreach ($question->hints as $hint) {
$question->hint[$key] = array();
// Prepare feedback editor to display files in draft area.
$draftitemid = file_get_submitted_draft_itemid('hint['.$key.']');
$question->hint[$key]['text'] = file_prepare_draft_area(
$draftitemid, // Draftid.
$this->context->id, // Context.
'question', // Component.
'hint', // Filarea.
!empty($hint->id) ? (int) $hint->id : null, // Itemid.
$this->fileoptions, // Options.
$hint->hint // Text.
);
$question->hint[$key]['itemid'] = $draftitemid;
$question->hint[$key]['format'] = $hint->hintformat;
$key++;
if ($withclearwrong) {
$question->hintclearwrong[] = $hint->clearwrong;
}
if ($withshownumpartscorrect) {
$question->hintshownumcorrect[] = $hint->shownumcorrect;
}
}
return $question;
}
public function validation($fromform, $files) {
global $DB;
$errors = parent::validation($fromform, $files);
// Make sure that the user can edit the question.
if (empty($fromform['makecopy']) && isset($this->question->id)
&& !$this->question->formoptions->canedit) {
$errors['currentgrp'] = get_string('nopermissionedit', 'question');
}
// Category.
if (empty($fromform['category'])) {
// User has provided an invalid category.
$errors['category'] = get_string('required');
}
// Default mark.
if (array_key_exists('defaultmark', $fromform) && $fromform['defaultmark'] < 0) {
$errors['defaultmark'] = get_string('defaultmarkmustbepositive', 'question');
}
// Can only have one idnumber per category.
if (strpos($fromform['category'], ',') !== false) {
list($category, $categorycontextid) = explode(',', $fromform['category']);
} else {
$category = $fromform['category'];
}
if (isset($fromform['idnumber']) && ((string) $fromform['idnumber'] !== '')) {
if (empty($fromform['usecurrentcat']) && !empty($fromform['categorymoveto'])) {
$categoryinfo = $fromform['categorymoveto'];
} else {
$categoryinfo = $fromform['category'];
}
list($categoryid, $notused) = explode(',', $categoryinfo);
$conditions = 'questioncategoryid = ? AND idnumber = ?';
$params = [$categoryid, $fromform['idnumber']];
if (!empty($this->question->id)) {
// Get the question bank entry id to not check the idnumber for the same bank entry.
$sql = "SELECT DISTINCT qbe.id
FROM {question_versions} qv
JOIN {question_bank_entries} qbe ON qbe.id = qv.questionbankentryid
WHERE qv.questionid = ?";
$bankentry = $DB->get_record_sql($sql, ['id' => $this->question->id]);
$conditions .= ' AND id <> ?';
$params[] = $bankentry->id;
}
if ($DB->record_exists_select('question_bank_entries', $conditions, $params)) {
$errors['idnumber'] = get_string('idnumbertaken', 'error');
}
}
if ($this->customfieldpluginenabled) {
// Add the custom field validation.
$errors = array_merge($errors, $this->customfieldhandler->instance_form_validation($fromform, $files));
}
return $errors;
}
/**
* Override this in the subclass to question type name.
* @return the question type name, should be the same as the name() method
* in the question type class.
*/
public abstract function qtype();
/**
* Returns an array of editor options with collapsed options turned off.
* @deprecated since 2.6
* @return array
*/
protected function get_non_collabsible_editor_options() {
debugging('get_non_collabsible_editor_options() is deprecated, use $this->editoroptions instead.', DEBUG_DEVELOPER);
return $this->editoroptions;
}
}