mirrored from git://git.moodle.org/moodle.git
-
Notifications
You must be signed in to change notification settings - Fork 6.6k
/
questiontype.php
707 lines (631 loc) · 29.1 KB
/
questiontype.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
<?php // $Id$
/**
* The questiontype class for the multiple choice question type.
*
* Note, This class contains some special features in order to make the
* question type embeddable within a multianswer (cloze) question
*
* @package questionbank
* @subpackage questiontypes
*/
class question_multichoice_qtype extends default_questiontype {
function name() {
return 'multichoice';
}
function has_html_answers() {
return true;
}
function get_question_options(&$question) {
// Get additional information from database
// and attach it to the question object
if (!$question->options = get_record('question_multichoice', 'question',
$question->id)) {
notify('Error: Missing question options for multichoice question'.$question->id.'!');
return false;
}
if (!$question->options->answers = get_records_select('question_answers', 'id IN ('.$question->options->answers.')', 'id')) {
notify('Error: Missing question answers for multichoice question'.$question->id.'!');
return false;
}
return true;
}
function save_question_options($question) {
$result = new stdClass;
if (!$oldanswers = get_records("question_answers", "question",
$question->id, "id ASC")) {
$oldanswers = array();
}
// following hack to check at least two answers exist
$answercount = 0;
foreach ($question->answer as $key=>$dataanswer) {
if ($dataanswer != "") {
$answercount++;
}
}
$answercount += count($oldanswers);
if ($answercount < 2) { // check there are at lest 2 answers for multiple choice
$result->notice = get_string("notenoughanswers", "qtype_multichoice", "2");
return $result;
}
// Insert all the new answers
$totalfraction = 0;
$maxfraction = -1;
$answers = array();
foreach ($question->answer as $key => $dataanswer) {
if ($dataanswer != "") {
if ($answer = array_shift($oldanswers)) { // Existing answer, so reuse it
$answer->answer = $dataanswer;
$answer->fraction = $question->fraction[$key];
$answer->feedback = $question->feedback[$key];
if (!update_record("question_answers", $answer)) {
$result->error = "Could not update quiz answer! (id=$answer->id)";
return $result;
}
} else {
unset($answer);
$answer->answer = $dataanswer;
$answer->question = $question->id;
$answer->fraction = $question->fraction[$key];
$answer->feedback = $question->feedback[$key];
if (!$answer->id = insert_record("question_answers", $answer)) {
$result->error = "Could not insert quiz answer! ";
return $result;
}
}
$answers[] = $answer->id;
if ($question->fraction[$key] > 0) { // Sanity checks
$totalfraction += $question->fraction[$key];
}
if ($question->fraction[$key] > $maxfraction) {
$maxfraction = $question->fraction[$key];
}
}
}
$update = true;
$options = get_record("question_multichoice", "question", $question->id);
if (!$options) {
$update = false;
$options = new stdClass;
$options->question = $question->id;
}
$options->answers = implode(",",$answers);
$options->single = $question->single;
if(isset($question->layout)){
$options->layout = $question->layout;
}
$options->answernumbering = $question->answernumbering;
$options->shuffleanswers = $question->shuffleanswers;
$options->correctfeedback = trim($question->correctfeedback);
$options->partiallycorrectfeedback = trim($question->partiallycorrectfeedback);
$options->incorrectfeedback = trim($question->incorrectfeedback);
if ($update) {
if (!update_record("question_multichoice", $options)) {
$result->error = "Could not update quiz multichoice options! (id=$options->id)";
return $result;
}
} else {
if (!insert_record("question_multichoice", $options)) {
$result->error = "Could not insert quiz multichoice options!";
return $result;
}
}
// delete old answer records
if (!empty($oldanswers)) {
foreach($oldanswers as $oa) {
delete_records('question_answers', 'id', $oa->id);
}
}
/// Perform sanity checks on fractional grades
if ($options->single) {
if ($maxfraction != 1) {
$maxfraction = $maxfraction * 100;
$result->noticeyesno = get_string("fractionsnomax", "qtype_multichoice", $maxfraction);
return $result;
}
} else {
$totalfraction = round($totalfraction,2);
if ($totalfraction != 1) {
$totalfraction = $totalfraction * 100;
$result->noticeyesno = get_string("fractionsaddwrong", "qtype_multichoice", $totalfraction);
return $result;
}
}
return true;
}
/**
* Deletes question from the question-type specific tables
*
* @return boolean Success/Failure
* @param object $question The question being deleted
*/
function delete_question($questionid) {
delete_records("question_multichoice", "question", $questionid);
return true;
}
function create_session_and_responses(&$question, &$state, $cmoptions, $attempt) {
// create an array of answerids ??? why so complicated ???
$answerids = array_values(array_map(create_function('$val',
'return $val->id;'), $question->options->answers));
// Shuffle the answers if required
if ($cmoptions->shuffleanswers and $question->options->shuffleanswers) {
$answerids = swapshuffle($answerids);
}
$state->options->order = $answerids;
// Create empty responses
if ($question->options->single) {
$state->responses = array('' => '');
} else {
$state->responses = array();
}
return true;
}
function restore_session_and_responses(&$question, &$state) {
// The serialized format for multiple choice quetsions
// is an optional comma separated list of answer ids (the order of the
// answers) followed by a colon, followed by another comma separated
// list of answer ids, which are the radio/checkboxes that were
// ticked.
// E.g. 1,3,2,4:2,4 means that the answers were shown in the order
// 1, 3, 2 and then 4 and the answers 2 and 4 were checked.
$pos = strpos($state->responses[''], ':');
if (false === $pos) { // No order of answers is given, so use the default
$state->options->order = array_keys($question->options->answers);
} else { // Restore the order of the answers
$state->options->order = explode(',', substr($state->responses[''], 0, $pos));
$state->responses[''] = substr($state->responses[''], $pos + 1);
}
// Restore the responses
// This is done in different ways if only a single answer is allowed or
// if multiple answers are allowed. For single answers the answer id is
// saved in $state->responses[''], whereas for the multiple answers case
// the $state->responses array is indexed by the answer ids and the
// values are also the answer ids (i.e. key = value).
if (empty($state->responses[''])) { // No previous responses
$state->responses = array('' => '');
} else {
if ($question->options->single) {
$state->responses = array('' => $state->responses['']);
} else {
// Get array of answer ids
$state->responses = explode(',', $state->responses['']);
// Create an array indexed by these answer ids
$state->responses = array_flip($state->responses);
// Set the value of each element to be equal to the index
array_walk($state->responses, create_function('&$a, $b',
'$a = $b;'));
}
}
return true;
}
function save_session_and_responses(&$question, &$state) {
// Bundle the answer order and the responses into the legacy answer
// field.
// The serialized format for multiple choice quetsions
// is (optionally) a comma separated list of answer ids
// followed by a colon, followed by another comma separated
// list of answer ids, which are the radio/checkboxes that were
// ticked.
// E.g. 1,3,2,4:2,4 means that the answers were shown in the order
// 1, 3, 2 and then 4 and the answers 2 and 4 were checked.
$responses = implode(',', $state->options->order) . ':';
$responses .= implode(',', $state->responses);
// Set the legacy answer field
if (!set_field('question_states', 'answer', $responses, 'id',
$state->id)) {
return false;
}
return true;
}
function get_correct_responses(&$question, &$state) {
if ($question->options->single) {
foreach ($question->options->answers as $answer) {
if (((int) $answer->fraction) === 1) {
return array('' => $answer->id);
}
}
return null;
} else {
$responses = array();
foreach ($question->options->answers as $answer) {
if (((float) $answer->fraction) > 0.0) {
$responses[$answer->id] = (string) $answer->id;
}
}
return empty($responses) ? null : $responses;
}
}
function print_question_formulation_and_controls(&$question, &$state, $cmoptions, $options) {
global $CFG;
$answers = &$question->options->answers;
$correctanswers = $this->get_correct_responses($question, $state);
$readonly = empty($options->readonly) ? '' : 'disabled="disabled"';
$formatoptions = new stdClass;
$formatoptions->noclean = true;
$formatoptions->para = false;
// Print formulation
$questiontext = format_text($question->questiontext,
$question->questiontextformat,
$formatoptions, $cmoptions->course);
$image = get_question_image($question);
$answerprompt = ($question->options->single) ? get_string('singleanswer', 'quiz') :
get_string('multipleanswers', 'quiz');
// Print each answer in a separate row
foreach ($state->options->order as $key => $aid) {
$answer = &$answers[$aid];
$checked = '';
$chosen = false;
if ($question->options->single) {
$type = 'type="radio"';
$name = "name=\"{$question->name_prefix}\"";
if (isset($state->responses['']) and $aid == $state->responses['']) {
$checked = 'checked="checked"';
$chosen = true;
}
} else {
$type = ' type="checkbox" ';
$name = "name=\"{$question->name_prefix}{$aid}\"";
if (isset($state->responses[$aid])) {
$checked = 'checked="checked"';
$chosen = true;
}
}
$a = new stdClass;
$a->id = $question->name_prefix . $aid;
$a->class = '';
$a->feedbackimg = '';
// Print the control
$a->control = "<input $readonly id=\"$a->id\" $name $checked $type value=\"$aid\" />";
if ($options->correct_responses && $answer->fraction > 0) {
$a->class = question_get_feedback_class(1);
}
if (($options->feedback && $chosen) || $options->correct_responses) {
if ($type == ' type="checkbox" ') {
$a->feedbackimg = question_get_feedback_image($answer->fraction > 0 ? 1 : 0, $chosen && $options->feedback);
} else {
$a->feedbackimg = question_get_feedback_image($answer->fraction, $chosen && $options->feedback);
}
}
// Print the answer text
$a->text = $this->number_in_style($key, $question->options->answernumbering) .
format_text($answer->answer, FORMAT_MOODLE, $formatoptions, $cmoptions->course);
// Print feedback if feedback is on
if (($options->feedback || $options->correct_responses) && $checked) {
$a->feedback = format_text($answer->feedback, true, $formatoptions, $cmoptions->course);
} else {
$a->feedback = '';
}
$anss[] = clone($a);
}
$feedback = '';
if ($options->feedback) {
if ($state->raw_grade >= $question->maxgrade/1.01) {
$feedback = $question->options->correctfeedback;
} else if ($state->raw_grade > 0) {
$feedback = $question->options->partiallycorrectfeedback;
} else {
$feedback = $question->options->incorrectfeedback;
}
$feedback = format_text($feedback,
$question->questiontextformat,
$formatoptions, $cmoptions->course);
}
include("$CFG->dirroot/question/type/multichoice/display.html");
}
function grade_responses(&$question, &$state, $cmoptions) {
$state->raw_grade = 0;
if($question->options->single) {
$response = reset($state->responses);
if ($response) {
$state->raw_grade = $question->options->answers[$response]->fraction;
}
} else {
foreach ($state->responses as $response) {
if ($response) {
$state->raw_grade += $question->options->answers[$response]->fraction;
}
}
}
// Make sure we don't assign negative or too high marks
$state->raw_grade = min(max((float) $state->raw_grade,
0.0), 1.0) * $question->maxgrade;
// Apply the penalty for this attempt
$state->penalty = $question->penalty * $question->maxgrade;
// mark the state as graded
$state->event = ($state->event == QUESTION_EVENTCLOSE) ? QUESTION_EVENTCLOSEANDGRADE : QUESTION_EVENTGRADE;
return true;
}
// ULPGC ecastro
function get_actual_response($question, $state) {
$answers = $question->options->answers;
$responses = array();
if (!empty($state->responses)) {
foreach ($state->responses as $aid =>$rid){
if (!empty($answers[$rid])) {
$responses[] = $this->format_text($answers[$rid]->answer, $question->questiontextformat);
}
}
} else {
$responses[] = '';
}
return $responses;
}
function response_summary($question, $state, $length = 80) {
return implode(',', $this->get_actual_response($question, $state));
}
/// BACKUP FUNCTIONS ////////////////////////////
/*
* Backup the data in the question
*
* This is used in question/backuplib.php
*/
function backup($bf,$preferences,$question,$level=6) {
$status = true;
$multichoices = get_records("question_multichoice","question",$question,"id");
//If there are multichoices
if ($multichoices) {
//Iterate over each multichoice
foreach ($multichoices as $multichoice) {
$status = fwrite ($bf,start_tag("MULTICHOICE",$level,true));
//Print multichoice contents
fwrite ($bf,full_tag("LAYOUT",$level+1,false,$multichoice->layout));
fwrite ($bf,full_tag("ANSWERS",$level+1,false,$multichoice->answers));
fwrite ($bf,full_tag("SINGLE",$level+1,false,$multichoice->single));
fwrite ($bf,full_tag("SHUFFLEANSWERS",$level+1,false,$multichoice->shuffleanswers));
fwrite ($bf,full_tag("CORRECTFEEDBACK",$level+1,false,$multichoice->correctfeedback));
fwrite ($bf,full_tag("PARTIALLYCORRECTFEEDBACK",$level+1,false,$multichoice->partiallycorrectfeedback));
fwrite ($bf,full_tag("INCORRECTFEEDBACK",$level+1,false,$multichoice->incorrectfeedback));
$status = fwrite ($bf,end_tag("MULTICHOICE",$level,true));
}
//Now print question_answers
$status = question_backup_answers($bf,$preferences,$question);
}
return $status;
}
/// RESTORE FUNCTIONS /////////////////
/*
* Restores the data in the question
*
* This is used in question/restorelib.php
*/
function restore($old_question_id,$new_question_id,$info,$restore) {
$status = true;
//Get the multichoices array
$multichoices = $info['#']['MULTICHOICE'];
//Iterate over multichoices
for($i = 0; $i < sizeof($multichoices); $i++) {
$mul_info = $multichoices[$i];
//Now, build the question_multichoice record structure
$multichoice = new stdClass;
$multichoice->question = $new_question_id;
$multichoice->layout = backup_todb($mul_info['#']['LAYOUT']['0']['#']);
$multichoice->answers = backup_todb($mul_info['#']['ANSWERS']['0']['#']);
$multichoice->single = backup_todb($mul_info['#']['SINGLE']['0']['#']);
$multichoice->shuffleanswers = isset($mul_info['#']['SHUFFLEANSWERS']['0']['#'])?backup_todb($mul_info['#']['SHUFFLEANSWERS']['0']['#']):'';
if (array_key_exists("CORRECTFEEDBACK", $mul_info['#'])) {
$multichoice->correctfeedback = backup_todb($mul_info['#']['CORRECTFEEDBACK']['0']['#']);
} else {
$multichoice->correctfeedback = '';
}
if (array_key_exists("PARTIALLYCORRECTFEEDBACK", $mul_info['#'])) {
$multichoice->partiallycorrectfeedback = backup_todb($mul_info['#']['PARTIALLYCORRECTFEEDBACK']['0']['#']);
} else {
$multichoice->partiallycorrectfeedback = '';
}
if (array_key_exists("INCORRECTFEEDBACK", $mul_info['#'])) {
$multichoice->incorrectfeedback = backup_todb($mul_info['#']['INCORRECTFEEDBACK']['0']['#']);
} else {
$multichoice->incorrectfeedback = '';
}
//We have to recode the answers field (a list of answers id)
//Extracts answer id from sequence
$answers_field = "";
$in_first = true;
$tok = strtok($multichoice->answers,",");
while ($tok) {
//Get the answer from backup_ids
$answer = backup_getid($restore->backup_unique_code,"question_answers",$tok);
if ($answer) {
if ($in_first) {
$answers_field .= $answer->new_id;
$in_first = false;
} else {
$answers_field .= ",".$answer->new_id;
}
}
//check for next
$tok = strtok(",");
}
//We have the answers field recoded to its new ids
$multichoice->answers = $answers_field;
//The structure is equal to the db, so insert the question_shortanswer
$newid = insert_record ("question_multichoice",$multichoice);
//Do some output
if (($i+1) % 50 == 0) {
if (!defined('RESTORE_SILENTLY')) {
echo ".";
if (($i+1) % 1000 == 0) {
echo "<br />";
}
}
backup_flush(300);
}
if (!$newid) {
$status = false;
}
}
return $status;
}
function restore_recode_answer($state, $restore) {
$pos = strpos($state->answer, ':');
$order = array();
$responses = array();
if (false === $pos) { // No order of answers is given, so use the default
if ($state->answer) {
$responses = explode(',', $state->answer);
}
} else {
$order = explode(',', substr($state->answer, 0, $pos));
if ($responsestring = substr($state->answer, $pos + 1)) {
$responses = explode(',', $responsestring);
}
}
if ($order) {
foreach ($order as $key => $oldansid) {
$answer = backup_getid($restore->backup_unique_code,"question_answers",$oldansid);
if ($answer) {
$order[$key] = $answer->new_id;
} else {
echo 'Could not recode multichoice answer id '.$oldansid.' for state '.$state->oldid.'<br />';
}
}
}
if ($responses) {
foreach ($responses as $key => $oldansid) {
$answer = backup_getid($restore->backup_unique_code,"question_answers",$oldansid);
if ($answer) {
$responses[$key] = $answer->new_id;
} else {
echo 'Could not recode multichoice response answer id '.$oldansid.' for state '.$state->oldid.'<br />';
}
}
}
return implode(',', $order).':'.implode(',', $responses);
}
/**
* Decode links in question type specific tables.
* @return bool success or failure.
*/
function decode_content_links_caller($questionids, $restore, &$i) {
$status = true;
// Decode links in the question_multichoice table.
if ($multichoices = get_records_list('question_multichoice', 'question',
implode(',', $questionids), '', 'id, correctfeedback, partiallycorrectfeedback, incorrectfeedback')) {
foreach ($multichoices as $multichoice) {
$correctfeedback = restore_decode_content_links_worker($multichoice->correctfeedback, $restore);
$partiallycorrectfeedback = restore_decode_content_links_worker($multichoice->partiallycorrectfeedback, $restore);
$incorrectfeedback = restore_decode_content_links_worker($multichoice->incorrectfeedback, $restore);
if ($correctfeedback != $multichoice->correctfeedback ||
$partiallycorrectfeedback != $multichoice->partiallycorrectfeedback ||
$incorrectfeedback != $multichoice->incorrectfeedback) {
$subquestion->correctfeedback = addslashes($correctfeedback);
$subquestion->partiallycorrectfeedback = addslashes($partiallycorrectfeedback);
$subquestion->incorrectfeedback = addslashes($incorrectfeedback);
if (!update_record('question_multichoice', $multichoice)) {
$status = false;
}
}
// Do some output.
if (++$i % 5 == 0 && !defined('RESTORE_SILENTLY')) {
echo ".";
if ($i % 100 == 0) {
echo "<br />";
}
backup_flush(300);
}
}
}
return $status;
}
/**
* @return array of the numbering styles supported. For each one, there
* should be a lang string answernumberingxxx in teh qtype_multichoice
* language file, and a case in the switch statement in number_in_style,
* and it should be listed in the definition of this column in install.xml.
*/
function get_numbering_styles() {
return array('abc', 'ABCD', '123', 'none');
}
function number_html($qnum) {
return '<span class="anun">' . $qnum . '<span class="anumsep">.</span></span> ';
}
/**
* @param int $num The number, starting at 0.
* @param string $style The style to render the number in. One of the ones returned by $numberingoptions.
* @return string the number $num in the requested style.
*/
function number_in_style($num, $style) {
switch($style) {
case 'abc':
return $this->number_html(chr(ord('a') + $num));
case 'ABCD':
return $this->number_html(chr(ord('A') + $num));
case '123':
return $this->number_html(($num + 1));
case 'none':
return '';
default:
return 'ERR';
}
}
function find_file_links($question, $courseid){
$urls = array();
// find links in the answers table.
$urls += question_find_file_links_from_html($question->options->correctfeedback, $courseid);
$urls += question_find_file_links_from_html($question->options->partiallycorrectfeedback, $courseid);
$urls += question_find_file_links_from_html($question->options->incorrectfeedback, $courseid);
foreach ($question->options->answers as $answer) {
$urls += question_find_file_links_from_html($answer->answer, $courseid);
}
//set all the values of the array to the question id
if ($urls){
$urls = array_combine(array_keys($urls), array_fill(0, count($urls), array($question->id)));
}
$urls = array_merge_recursive($urls, parent::find_file_links($question, $courseid));
return $urls;
}
function replace_file_links($question, $fromcourseid, $tocourseid, $url, $destination){
parent::replace_file_links($question, $fromcourseid, $tocourseid, $url, $destination);
// replace links in the question_match_sub table.
// We need to use a separate object, because in load_question_options, $question->options->answers
// is changed from a comma-separated list of ids to an array, so calling update_record on
// $question->options stores 'Array' in that column, breaking the question.
$optionschanged = false;
$newoptions = new stdClass;
$newoptions->id = $question->options->id;
$newoptions->correctfeedback = question_replace_file_links_in_html($question->options->correctfeedback, $fromcourseid, $tocourseid, $url, $destination, $optionschanged);
$newoptions->partiallycorrectfeedback = question_replace_file_links_in_html($question->options->partiallycorrectfeedback, $fromcourseid, $tocourseid, $url, $destination, $optionschanged);
$newoptions->incorrectfeedback = question_replace_file_links_in_html($question->options->incorrectfeedback, $fromcourseid, $tocourseid, $url, $destination, $optionschanged);
if ($optionschanged){
if (!update_record('question_multichoice', addslashes_recursive($newoptions))) {
error('Couldn\'t update \'question_multichoice\' record '.$newoptions->id);
}
}
$answerchanged = false;
foreach ($question->options->answers as $answer) {
$answer->answer = question_replace_file_links_in_html($answer->answer, $fromcourseid, $tocourseid, $url, $destination, $answerchanged);
if ($answerchanged){
if (!update_record('question_answers', addslashes_recursive($answer))){
error('Couldn\'t update \'question_answers\' record '.$answer->id);
}
}
}
}
/**
* Runs all the code required to set up and save an essay question for testing purposes.
* Alternate DB table prefix may be used to facilitate data deletion.
*/
function generate_test($name, $courseid = null) {
list($form, $question) = parent::generate_test($name, $courseid);
$question->category = $form->category;
$form->questiontext = "How old is the sun?";
$form->generalfeedback = "General feedback";
$form->penalty = 0.1;
$form->single = 1;
$form->shuffleanswers = 1;
$form->answernumbering = 'abc';
$form->noanswers = 3;
$form->answer = array('Ancient', '5 billion years old', '4.5 billion years old');
$form->fraction = array(0.3, 0.9, 1);
$form->feedback = array('True, but lacking in accuracy', 'Close, but no cigar!', 'Yep, that is it!');
$form->correctfeedback = 'Excellent!';
$form->incorrectfeedback = 'Nope!';
$form->partiallycorrectfeedback = 'Not bad';
if ($courseid) {
$course = get_record('course', 'id', $courseid);
}
return $this->save_question($question, $form, $course);
}
}
// Register this question type with the question bank.
question_register_questiontype(new question_multichoice_qtype());
?>