1
|
|
|
<?php |
2
|
|
|
|
3
|
|
|
/* For licensing terms, see /license.txt */ |
4
|
|
|
|
5
|
|
|
use Chamilo\CoreBundle\Framework\Container; |
6
|
|
|
use Chamilo\CourseBundle\Entity\CQuizAnswer; |
7
|
|
|
use Chamilo\CourseBundle\Entity\CQuizQuestion; |
8
|
|
|
|
9
|
|
|
/** |
10
|
|
|
* Class Answer |
11
|
|
|
* Allows to instantiate an object of type Answer |
12
|
|
|
* 5 arrays are created to receive the attributes of each answer belonging to a specified question. |
13
|
|
|
* |
14
|
|
|
* @author Olivier Brouckaert |
15
|
|
|
*/ |
16
|
|
|
class Answer |
17
|
|
|
{ |
18
|
|
|
public $questionId; |
19
|
|
|
|
20
|
|
|
// these are arrays |
21
|
|
|
public $answer; |
22
|
|
|
public $correct; |
23
|
|
|
public $comment; |
24
|
|
|
public $weighting; |
25
|
|
|
public $position; |
26
|
|
|
public $hotspot_coordinates; |
27
|
|
|
public $hotspot_type; |
28
|
|
|
public $destination; |
29
|
|
|
// these arrays are used to save temporarily new answers |
30
|
|
|
// then they are moved into the arrays above or deleted in the event of cancellation |
31
|
|
|
public $new_answer; |
32
|
|
|
public $new_correct; |
33
|
|
|
public $new_comment; |
34
|
|
|
public $new_weighting; |
35
|
|
|
public $new_position; |
36
|
|
|
public $new_hotspot_coordinates; |
37
|
|
|
public $new_hotspot_type; |
38
|
|
|
public $autoId; |
39
|
|
|
/** @var int Number of answers in the question */ |
40
|
|
|
public $nbrAnswers; |
41
|
|
|
public $new_nbrAnswers; |
42
|
|
|
public $new_destination; // id of the next question if feedback option is set to Directfeedback |
43
|
|
|
public $course; //Course information |
44
|
|
|
public $iid; |
45
|
|
|
public $questionJSId; |
46
|
|
|
public $standalone; |
47
|
|
|
/** @var Exercise|null */ |
48
|
|
|
private $exercise; |
49
|
|
|
|
50
|
|
|
/** |
51
|
|
|
* @author Olivier Brouckaert |
52
|
|
|
* |
53
|
|
|
* @param int $questionId that answers belong to |
54
|
|
|
* @param int $course_id |
55
|
|
|
* @param Exercise $exercise |
56
|
|
|
* @param bool $readAnswer |
57
|
|
|
*/ |
58
|
|
|
public function __construct($questionId, $course_id = 0, $exercise = null, $readAnswer = true) |
59
|
|
|
{ |
60
|
|
|
$this->questionId = (int) $questionId; |
61
|
|
|
$this->answer = []; |
62
|
|
|
$this->correct = []; |
63
|
|
|
$this->comment = []; |
64
|
|
|
$this->weighting = []; |
65
|
|
|
$this->position = []; |
66
|
|
|
$this->hotspot_coordinates = []; |
67
|
|
|
$this->hotspot_type = []; |
68
|
|
|
$this->destination = []; |
69
|
|
|
// clears $new_* arrays |
70
|
|
|
$this->cancel(); |
71
|
|
|
|
72
|
|
|
if (!empty($course_id)) { |
73
|
|
|
$courseInfo = api_get_course_info_by_id($course_id); |
74
|
|
|
} else { |
75
|
|
|
$courseInfo = api_get_course_info(); |
76
|
|
|
} |
77
|
|
|
|
78
|
|
|
$this->course = $courseInfo; |
79
|
|
|
$this->course_id = $courseInfo['real_id']; |
80
|
|
|
|
81
|
|
|
if (empty($exercise)) { |
82
|
|
|
// fills arrays |
83
|
|
|
$objExercise = new Exercise($this->course_id); |
84
|
|
|
$exerciseId = isset($_REQUEST['exerciseId']) ? $_REQUEST['exerciseId'] : null; |
85
|
|
|
$objExercise->read($exerciseId, false); |
86
|
|
|
} else { |
87
|
|
|
$objExercise = $exercise; |
88
|
|
|
} |
89
|
|
|
$this->exercise = $objExercise; |
90
|
|
|
|
91
|
|
|
if ($readAnswer) { |
92
|
|
|
if ('1' == $objExercise->random_answers && CALCULATED_ANSWER != $this->getQuestionType()) { |
93
|
|
|
$this->readOrderedBy('rand()', ''); // randomize answers |
94
|
|
|
} else { |
95
|
|
|
$this->read(); // natural order |
96
|
|
|
} |
97
|
|
|
} |
98
|
|
|
} |
99
|
|
|
|
100
|
|
|
/** |
101
|
|
|
* Clears $new_* arrays. |
102
|
|
|
* |
103
|
|
|
* @author Olivier Brouckaert |
104
|
|
|
*/ |
105
|
|
|
public function cancel() |
106
|
|
|
{ |
107
|
|
|
$this->new_answer = []; |
108
|
|
|
$this->new_correct = []; |
109
|
|
|
$this->new_comment = []; |
110
|
|
|
$this->new_weighting = []; |
111
|
|
|
$this->new_position = []; |
112
|
|
|
$this->new_hotspot_coordinates = []; |
113
|
|
|
$this->new_hotspot_type = []; |
114
|
|
|
$this->new_nbrAnswers = 0; |
115
|
|
|
$this->new_destination = []; |
116
|
|
|
} |
117
|
|
|
|
118
|
|
|
/** |
119
|
|
|
* Reads answer information from the database. |
120
|
|
|
* |
121
|
|
|
* @author Olivier Brouckaert |
122
|
|
|
*/ |
123
|
|
|
public function read() |
124
|
|
|
{ |
125
|
|
|
$table = Database::get_course_table(TABLE_QUIZ_ANSWER); |
126
|
|
|
$questionId = $this->questionId; |
127
|
|
|
|
128
|
|
|
$sql = "SELECT * FROM $table |
129
|
|
|
WHERE |
130
|
|
|
question_id ='".$questionId."' |
131
|
|
|
ORDER BY position"; |
132
|
|
|
|
133
|
|
|
$result = Database::query($sql); |
134
|
|
|
$i = 1; |
135
|
|
|
|
136
|
|
|
// while a record is found |
137
|
|
|
while ($object = Database::fetch_object($result)) { |
138
|
|
|
$this->id[$i] = $object->iid; |
139
|
|
|
$this->autoId[$i] = $object->iid; |
140
|
|
|
$this->iid[$i] = $object->iid; |
141
|
|
|
$this->answer[$i] = $object->answer; |
142
|
|
|
$this->correct[$i] = $object->correct; |
143
|
|
|
$this->comment[$i] = $object->comment; |
144
|
|
|
$this->weighting[$i] = $object->ponderation; |
145
|
|
|
$this->position[$i] = $object->position; |
146
|
|
|
$this->hotspot_coordinates[$i] = $object->hotspot_coordinates; |
147
|
|
|
$this->hotspot_type[$i] = $object->hotspot_type; |
148
|
|
|
$i++; |
149
|
|
|
} |
150
|
|
|
$this->nbrAnswers = $i - 1; |
151
|
|
|
} |
152
|
|
|
|
153
|
|
|
/** |
154
|
|
|
* @param int $id |
155
|
|
|
* |
156
|
|
|
* @return array |
157
|
|
|
*/ |
158
|
|
|
public function getAnswerByAutoId($id) |
159
|
|
|
{ |
160
|
|
|
foreach ($this->autoId as $key => $autoId) { |
161
|
|
|
if ($autoId == $id) { |
162
|
|
|
return [ |
163
|
|
|
'answer' => $this->answer[$key], |
164
|
|
|
'correct' => $this->correct[$key], |
165
|
|
|
'comment' => $this->comment[$key], |
166
|
|
|
]; |
167
|
|
|
} |
168
|
|
|
} |
169
|
|
|
|
170
|
|
|
return []; |
171
|
|
|
} |
172
|
|
|
|
173
|
|
|
/** |
174
|
|
|
* returns all answer ids from this question Id. |
175
|
|
|
* |
176
|
|
|
* @author Yoselyn Castillo |
177
|
|
|
* |
178
|
|
|
* @return array - $id (answer ids) |
179
|
|
|
*/ |
180
|
|
|
public function selectAnswerId() |
181
|
|
|
{ |
182
|
|
|
$table = Database::get_course_table(TABLE_QUIZ_ANSWER); |
183
|
|
|
$questionId = $this->questionId; |
184
|
|
|
|
185
|
|
|
$sql = "SELECT id FROM |
186
|
|
|
$table |
187
|
|
|
WHERE c_id = {$this->course_id} AND question_id ='".$questionId."'"; |
188
|
|
|
|
189
|
|
|
$result = Database::query($sql); |
190
|
|
|
$id = []; |
191
|
|
|
// while a record is found |
192
|
|
|
if (Database::num_rows($result) > 0) { |
193
|
|
|
while ($object = Database::fetch_array($result)) { |
194
|
|
|
$id[] = $object['id']; |
195
|
|
|
} |
196
|
|
|
} |
197
|
|
|
|
198
|
|
|
return $id; |
199
|
|
|
} |
200
|
|
|
|
201
|
|
|
/** |
202
|
|
|
* Reads answer information from the data base ordered by parameter. |
203
|
|
|
* |
204
|
|
|
* @param string $field Field we want to order by |
205
|
|
|
* @param string $order DESC or ASC |
206
|
|
|
* |
207
|
|
|
* @return bool |
208
|
|
|
* |
209
|
|
|
* @author Frederic Vauthier |
210
|
|
|
*/ |
211
|
|
|
public function readOrderedBy($field, $order = 'ASC') |
212
|
|
|
{ |
213
|
|
|
$field = Database::escape_string($field); |
214
|
|
|
if (empty($field)) { |
215
|
|
|
$field = 'position'; |
216
|
|
|
} |
217
|
|
|
|
218
|
|
|
if ('ASC' != $order && 'DESC' != $order) { |
219
|
|
|
$order = 'ASC'; |
220
|
|
|
} |
221
|
|
|
|
222
|
|
|
$TBL_ANSWER = Database::get_course_table(TABLE_QUIZ_ANSWER); |
223
|
|
|
$TBL_QUIZ = Database::get_course_table(TABLE_QUIZ_QUESTION); |
224
|
|
|
$questionId = (int) $this->questionId; |
225
|
|
|
|
226
|
|
|
$sql = "SELECT type FROM $TBL_QUIZ |
227
|
|
|
WHERE iid = $questionId"; |
228
|
|
|
$result_question = Database::query($sql); |
229
|
|
|
$questionType = Database::fetch_array($result_question); |
230
|
|
|
|
231
|
|
|
if (DRAGGABLE == $questionType['type']) { |
232
|
|
|
// Random is done by submit.js.tpl |
233
|
|
|
$this->read(); |
234
|
|
|
|
235
|
|
|
return true; |
236
|
|
|
} |
237
|
|
|
|
238
|
|
|
$sql = "SELECT |
239
|
|
|
answer, |
240
|
|
|
correct, |
241
|
|
|
comment, |
242
|
|
|
ponderation, |
243
|
|
|
position, |
244
|
|
|
hotspot_coordinates, |
245
|
|
|
hotspot_type, |
246
|
|
|
iid |
247
|
|
|
FROM $TBL_ANSWER |
248
|
|
|
WHERE |
249
|
|
|
question_id='".$questionId."' |
250
|
|
|
ORDER BY $field $order"; |
251
|
|
|
$result = Database::query($sql); |
252
|
|
|
|
253
|
|
|
$i = 1; |
254
|
|
|
// while a record is found |
255
|
|
|
$doubt_data = null; |
256
|
|
|
while ($object = Database::fetch_object($result)) { |
257
|
|
|
if (UNIQUE_ANSWER_NO_OPTION == $questionType['type'] && 666 == $object->position) { |
258
|
|
|
$doubt_data = $object; |
259
|
|
|
|
260
|
|
|
continue; |
261
|
|
|
} |
262
|
|
|
$this->answer[$i] = $object->answer; |
263
|
|
|
$this->correct[$i] = $object->correct; |
264
|
|
|
$this->comment[$i] = $object->comment; |
265
|
|
|
$this->weighting[$i] = $object->ponderation; |
266
|
|
|
$this->position[$i] = $object->position; |
267
|
|
|
$this->hotspot_coordinates[$i] = $object->hotspot_coordinates; |
268
|
|
|
$this->hotspot_type[$i] = $object->hotspot_type; |
269
|
|
|
$this->autoId[$i] = $object->iid; |
270
|
|
|
$this->iid[$i] = $object->iid; |
271
|
|
|
$i++; |
272
|
|
|
} |
273
|
|
|
|
274
|
|
|
if (UNIQUE_ANSWER_NO_OPTION == $questionType['type'] && !empty($doubt_data)) { |
275
|
|
|
$this->answer[$i] = $doubt_data->answer; |
276
|
|
|
$this->correct[$i] = $doubt_data->correct; |
277
|
|
|
$this->comment[$i] = $doubt_data->comment; |
278
|
|
|
$this->weighting[$i] = $doubt_data->ponderation; |
279
|
|
|
$this->position[$i] = $doubt_data->position; |
280
|
|
|
$this->hotspot_coordinates[$i] = isset($object->hotspot_coordinates) ? $object->hotspot_coordinates : 0; |
281
|
|
|
$this->hotspot_type[$i] = isset($object->hotspot_type) ? $object->hotspot_type : 0; |
282
|
|
|
$this->destination[$i] = $doubt_data->destination; |
283
|
|
|
$this->autoId[$i] = $doubt_data->iid; |
284
|
|
|
$this->iid[$i] = $doubt_data->iid; |
285
|
|
|
$i++; |
286
|
|
|
} |
287
|
|
|
$this->nbrAnswers = $i - 1; |
288
|
|
|
|
289
|
|
|
return true; |
290
|
|
|
} |
291
|
|
|
|
292
|
|
|
/** |
293
|
|
|
* returns the autoincrement id. |
294
|
|
|
* |
295
|
|
|
* @author Juan Carlos Ra�a |
296
|
|
|
* |
297
|
|
|
* @return int - answer num |
298
|
|
|
*/ |
299
|
|
|
public function selectAutoId($id) |
300
|
|
|
{ |
301
|
|
|
return isset($this->iid[$id]) ? (int) $this->iid[$id] : 0; |
302
|
|
|
} |
303
|
|
|
|
304
|
|
|
/** |
305
|
|
|
* returns the number of answers in this question. |
306
|
|
|
* |
307
|
|
|
* @author Olivier Brouckaert |
308
|
|
|
* |
309
|
|
|
* @return int - number of answers |
310
|
|
|
*/ |
311
|
|
|
public function selectNbrAnswers() |
312
|
|
|
{ |
313
|
|
|
return $this->nbrAnswers; |
314
|
|
|
} |
315
|
|
|
|
316
|
|
|
/** |
317
|
|
|
* returns the question ID which the answers belong to. |
318
|
|
|
* |
319
|
|
|
* @author Olivier Brouckaert |
320
|
|
|
* |
321
|
|
|
* @return int - the question ID |
322
|
|
|
*/ |
323
|
|
|
public function selectQuestionId() |
324
|
|
|
{ |
325
|
|
|
return $this->questionId; |
326
|
|
|
} |
327
|
|
|
|
328
|
|
|
/** |
329
|
|
|
* returns the question ID of the destination question. |
330
|
|
|
* |
331
|
|
|
* @author Julio Montoya |
332
|
|
|
* |
333
|
|
|
* @param int $id |
334
|
|
|
* |
335
|
|
|
* @return int - the question ID |
336
|
|
|
*/ |
337
|
|
|
public function selectDestination($id) |
338
|
|
|
{ |
339
|
|
|
return isset($this->destination[$id]) ? $this->destination[$id] : null; |
340
|
|
|
} |
341
|
|
|
|
342
|
|
|
/** |
343
|
|
|
* returns the answer title. |
344
|
|
|
* |
345
|
|
|
* @author Olivier Brouckaert |
346
|
|
|
* |
347
|
|
|
* @param - integer $id - answer ID |
348
|
|
|
* |
349
|
|
|
* @return string - answer title |
350
|
|
|
*/ |
351
|
|
|
public function selectAnswer($id) |
352
|
|
|
{ |
353
|
|
|
return isset($this->answer[$id]) ? $this->answer[$id] : null; |
354
|
|
|
} |
355
|
|
|
|
356
|
|
|
/** |
357
|
|
|
* return array answer by id else return a bool. |
358
|
|
|
* |
359
|
|
|
* @param int $auto_id |
360
|
|
|
* |
361
|
|
|
* @return array |
362
|
|
|
*/ |
363
|
|
|
public function selectAnswerByAutoId($auto_id) |
364
|
|
|
{ |
365
|
|
|
$table = Database::get_course_table(TABLE_QUIZ_ANSWER); |
366
|
|
|
$auto_id = (int) $auto_id; |
367
|
|
|
$sql = "SELECT iid, answer FROM $table |
368
|
|
|
WHERE iid='$auto_id'"; |
369
|
|
|
$rs = Database::query($sql); |
370
|
|
|
|
371
|
|
|
if (Database::num_rows($rs) > 0) { |
372
|
|
|
return Database::fetch_assoc($rs); |
|
|
|
|
373
|
|
|
} |
374
|
|
|
|
375
|
|
|
return false; |
376
|
|
|
} |
377
|
|
|
|
378
|
|
|
/** |
379
|
|
|
* returns the answer title from an answer's position. |
380
|
|
|
* |
381
|
|
|
* @author Yannick Warnier |
382
|
|
|
* |
383
|
|
|
* @param - integer $pos - answer ID |
384
|
|
|
* |
385
|
|
|
* @return bool - answer title |
386
|
|
|
*/ |
387
|
|
|
public function selectAnswerIdByPosition($pos) |
388
|
|
|
{ |
389
|
|
|
foreach ($this->position as $k => $v) { |
390
|
|
|
if ($v != $pos) { |
391
|
|
|
continue; |
392
|
|
|
} |
393
|
|
|
|
394
|
|
|
return $k; |
395
|
|
|
} |
396
|
|
|
|
397
|
|
|
return false; |
398
|
|
|
} |
399
|
|
|
|
400
|
|
|
/** |
401
|
|
|
* Returns a list of answers. |
402
|
|
|
* |
403
|
|
|
* @author Yannick Warnier <[email protected]> |
404
|
|
|
* |
405
|
|
|
* @param bool $decode |
406
|
|
|
* |
407
|
|
|
* @return array List of answers where each answer is an array |
408
|
|
|
* of (id, answer, comment, grade) and grade=weighting |
409
|
|
|
*/ |
410
|
|
|
public function getAnswersList($decode = false) |
411
|
|
|
{ |
412
|
|
|
$list = []; |
413
|
|
|
for ($i = 1; $i <= $this->nbrAnswers; $i++) { |
414
|
|
|
if (!empty($this->answer[$i])) { |
415
|
|
|
//Avoid problems when parsing elements with accents |
416
|
|
|
if ($decode) { |
417
|
|
|
$this->answer[$i] = api_html_entity_decode( |
418
|
|
|
$this->answer[$i], |
419
|
|
|
ENT_QUOTES, |
420
|
|
|
api_get_system_encoding() |
421
|
|
|
); |
422
|
|
|
$this->comment[$i] = api_html_entity_decode( |
423
|
|
|
$this->comment[$i], |
424
|
|
|
ENT_QUOTES, |
425
|
|
|
api_get_system_encoding() |
426
|
|
|
); |
427
|
|
|
} |
428
|
|
|
|
429
|
|
|
$list[] = [ |
430
|
|
|
'id' => $i, |
431
|
|
|
'answer' => $this->answer[$i], |
432
|
|
|
'comment' => $this->comment[$i], |
433
|
|
|
'grade' => $this->weighting[$i], |
434
|
|
|
'hotspot_coord' => $this->hotspot_coordinates[$i], |
435
|
|
|
'hotspot_type' => $this->hotspot_type[$i], |
436
|
|
|
'correct' => $this->correct[$i], |
437
|
|
|
]; |
438
|
|
|
} |
439
|
|
|
} |
440
|
|
|
|
441
|
|
|
return $list; |
442
|
|
|
} |
443
|
|
|
|
444
|
|
|
/** |
445
|
|
|
* Returns a list of grades. |
446
|
|
|
* |
447
|
|
|
* @author Yannick Warnier <[email protected]> |
448
|
|
|
* |
449
|
|
|
* @return array List of grades where grade=weighting (?) |
450
|
|
|
*/ |
451
|
|
|
public function getGradesList() |
452
|
|
|
{ |
453
|
|
|
$list = []; |
454
|
|
|
for ($i = 0; $i < $this->nbrAnswers; $i++) { |
455
|
|
|
if (!empty($this->answer[$i])) { |
456
|
|
|
$list[$i] = $this->weighting[$i]; |
457
|
|
|
} |
458
|
|
|
} |
459
|
|
|
|
460
|
|
|
return $list; |
461
|
|
|
} |
462
|
|
|
|
463
|
|
|
/** |
464
|
|
|
* Returns the question type. |
465
|
|
|
* |
466
|
|
|
* @author Yannick Warnier <[email protected]> |
467
|
|
|
* |
468
|
|
|
* @todo remove this function use CQuizQuestion |
469
|
|
|
* |
470
|
|
|
* @return int The type of the question this answer is bound to |
471
|
|
|
*/ |
472
|
|
|
public function getQuestionType() |
473
|
|
|
{ |
474
|
|
|
$table = Database::get_course_table(TABLE_QUIZ_QUESTION); |
475
|
|
|
$sql = "SELECT type FROM $table |
476
|
|
|
WHERE iid = '".$this->questionId."'"; |
477
|
|
|
$res = Database::query($sql); |
478
|
|
|
if (Database::num_rows($res) <= 0) { |
479
|
|
|
return null; |
480
|
|
|
} |
481
|
|
|
$row = Database::fetch_array($res); |
482
|
|
|
|
483
|
|
|
return (int) $row['type']; |
484
|
|
|
} |
485
|
|
|
|
486
|
|
|
/** |
487
|
|
|
* tells if answer is correct or not. |
488
|
|
|
* |
489
|
|
|
* @author Olivier Brouckaert |
490
|
|
|
* |
491
|
|
|
* @param - integer $id - answer ID |
492
|
|
|
* |
493
|
|
|
* @return int - 0 if bad answer, not 0 if good answer |
494
|
|
|
*/ |
495
|
|
|
public function isCorrect($id) |
496
|
|
|
{ |
497
|
|
|
return isset($this->correct[$id]) ? $this->correct[$id] : null; |
498
|
|
|
} |
499
|
|
|
|
500
|
|
|
/** |
501
|
|
|
* returns answer comment. |
502
|
|
|
* |
503
|
|
|
* @author Olivier Brouckaert |
504
|
|
|
* |
505
|
|
|
* @param - integer $id - answer ID |
506
|
|
|
* |
507
|
|
|
* @return string - answer comment |
508
|
|
|
*/ |
509
|
|
|
public function selectComment($id) |
510
|
|
|
{ |
511
|
|
|
return isset($this->comment[$id]) ? $this->comment[$id] : null; |
512
|
|
|
} |
513
|
|
|
|
514
|
|
|
/** |
515
|
|
|
* returns answer weighting. |
516
|
|
|
* |
517
|
|
|
* @author Olivier Brouckaert |
518
|
|
|
* |
519
|
|
|
* @param - integer $id - answer ID |
520
|
|
|
* |
521
|
|
|
* @return int - answer weighting |
522
|
|
|
*/ |
523
|
|
|
public function selectWeighting($id) |
524
|
|
|
{ |
525
|
|
|
return isset($this->weighting[$id]) ? $this->weighting[$id] : null; |
526
|
|
|
} |
527
|
|
|
|
528
|
|
|
/** |
529
|
|
|
* returns answer position. |
530
|
|
|
* |
531
|
|
|
* @author Olivier Brouckaert |
532
|
|
|
* |
533
|
|
|
* @param - integer $id - answer ID |
534
|
|
|
* |
535
|
|
|
* @return int - answer position |
536
|
|
|
*/ |
537
|
|
|
public function selectPosition($id) |
538
|
|
|
{ |
539
|
|
|
return isset($this->position[$id]) ? $this->position[$id] : null; |
540
|
|
|
} |
541
|
|
|
|
542
|
|
|
/** |
543
|
|
|
* returns answer hotspot coordinates. |
544
|
|
|
* |
545
|
|
|
* @author Olivier Brouckaert |
546
|
|
|
* |
547
|
|
|
* @param int $id Answer ID |
548
|
|
|
* |
549
|
|
|
* @return int Answer position |
550
|
|
|
*/ |
551
|
|
|
public function selectHotspotCoordinates($id) |
552
|
|
|
{ |
553
|
|
|
return isset($this->hotspot_coordinates[$id]) ? $this->hotspot_coordinates[$id] : null; |
554
|
|
|
} |
555
|
|
|
|
556
|
|
|
/** |
557
|
|
|
* returns answer hotspot type. |
558
|
|
|
* |
559
|
|
|
* @author Toon Keppens |
560
|
|
|
* |
561
|
|
|
* @param int $id Answer ID |
562
|
|
|
* |
563
|
|
|
* @return int Answer position |
564
|
|
|
*/ |
565
|
|
|
public function selectHotspotType($id) |
566
|
|
|
{ |
567
|
|
|
return isset($this->hotspot_type[$id]) ? $this->hotspot_type[$id] : null; |
568
|
|
|
} |
569
|
|
|
|
570
|
|
|
/** |
571
|
|
|
* Creates a new answer. |
572
|
|
|
* |
573
|
|
|
* @author Olivier Brouckaert |
574
|
|
|
* |
575
|
|
|
* @param string $answer answer title |
576
|
|
|
* @param int $correct 0 if bad answer, not 0 if good answer |
577
|
|
|
* @param string $comment answer comment |
578
|
|
|
* @param int $weighting answer weighting |
579
|
|
|
* @param int $position answer position |
580
|
|
|
* @param array $new_hotspot_coordinates Coordinates for hotspot exercises (optional) |
581
|
|
|
* @param int $new_hotspot_type Type for hotspot exercises (optional) |
582
|
|
|
* @param string $destination |
583
|
|
|
*/ |
584
|
|
|
public function createAnswer( |
585
|
|
|
$answer, |
586
|
|
|
$correct, |
587
|
|
|
$comment, |
588
|
|
|
$weighting, |
589
|
|
|
$position, |
590
|
|
|
$new_hotspot_coordinates = null, |
591
|
|
|
$new_hotspot_type = null, |
592
|
|
|
$destination = '' |
593
|
|
|
) { |
594
|
|
|
$this->new_nbrAnswers++; |
595
|
|
|
$id = $this->new_nbrAnswers; |
596
|
|
|
$this->new_answer[$id] = $answer; |
597
|
|
|
$this->new_correct[$id] = $correct; |
598
|
|
|
$this->new_comment[$id] = $comment; |
599
|
|
|
$this->new_weighting[$id] = $weighting; |
600
|
|
|
$this->new_position[$id] = $position; |
601
|
|
|
$this->new_hotspot_coordinates[$id] = $new_hotspot_coordinates; |
602
|
|
|
$this->new_hotspot_type[$id] = $new_hotspot_type; |
603
|
|
|
} |
604
|
|
|
|
605
|
|
|
/** |
606
|
|
|
* Updates an answer. |
607
|
|
|
* |
608
|
|
|
* @author Toon Keppens |
609
|
|
|
* |
610
|
|
|
* @param int $iid |
611
|
|
|
* @param string $answer |
612
|
|
|
* @param string $comment |
613
|
|
|
* @param string $correct |
614
|
|
|
* @param string $weighting |
615
|
|
|
* @param string $position |
616
|
|
|
* @param string $destination |
617
|
|
|
* @param string $hotSpotCoordinates |
618
|
|
|
* @param string $hotSpotType |
619
|
|
|
* |
620
|
|
|
* @return CQuizAnswer |
621
|
|
|
*/ |
622
|
|
|
public function updateAnswers( |
623
|
|
|
$iid, |
624
|
|
|
$answer, |
625
|
|
|
$comment, |
626
|
|
|
$correct, |
627
|
|
|
$weighting, |
628
|
|
|
$position, |
629
|
|
|
$destination, |
630
|
|
|
$hotSpotCoordinates, |
631
|
|
|
$hotSpotType |
632
|
|
|
) { |
633
|
|
|
$em = Database::getManager(); |
634
|
|
|
|
635
|
|
|
/** @var CQuizAnswer $quizAnswer */ |
636
|
|
|
$quizAnswer = $em->find(CQuizAnswer::class, $iid); |
637
|
|
|
if ($quizAnswer) { |
|
|
|
|
638
|
|
|
$quizAnswer |
639
|
|
|
->setAnswer((string) $answer) |
640
|
|
|
->setComment((string) $comment) |
641
|
|
|
->setCorrect((int) $correct) |
642
|
|
|
->setPonderation($weighting) |
643
|
|
|
->setPosition($position) |
644
|
|
|
->setHotspotCoordinates($hotSpotCoordinates) |
645
|
|
|
->setHotspotType($hotSpotType) |
646
|
|
|
; |
647
|
|
|
|
648
|
|
|
$em->persist($quizAnswer); |
649
|
|
|
$em->flush(); |
650
|
|
|
|
651
|
|
|
return $quizAnswer; |
652
|
|
|
} |
653
|
|
|
|
654
|
|
|
return false; |
655
|
|
|
} |
656
|
|
|
|
657
|
|
|
/** |
658
|
|
|
* Records answers into the data base. |
659
|
|
|
* |
660
|
|
|
* @author Olivier Brouckaert |
661
|
|
|
*/ |
662
|
|
|
public function save() |
663
|
|
|
{ |
664
|
|
|
$answerTable = Database::get_course_table(TABLE_QUIZ_ANSWER); |
665
|
|
|
$em = Database::getManager(); |
666
|
|
|
$questionId = (int) $this->questionId; |
667
|
|
|
|
668
|
|
|
$courseId = $this->course['real_id']; |
669
|
|
|
$answerList = []; |
670
|
|
|
$questionRepo = Container::getQuestionRepository(); |
671
|
|
|
/** @var CQuizQuestion $question */ |
672
|
|
|
$question = $questionRepo->find($questionId); |
673
|
|
|
$questionType = $this->getQuestionType(); |
674
|
|
|
|
675
|
|
|
for ($i = 1; $i <= $this->new_nbrAnswers; $i++) { |
676
|
|
|
$answer = (string) $this->new_answer[$i]; |
677
|
|
|
$correct = isset($this->new_correct[$i]) ? (int) $this->new_correct[$i] : null; |
678
|
|
|
$comment = isset($this->new_comment[$i]) ? $this->new_comment[$i] : null; |
679
|
|
|
$weighting = isset($this->new_weighting[$i]) ? (float) $this->new_weighting[$i] : null; |
680
|
|
|
$position = isset($this->new_position[$i]) ? $this->new_position[$i] : null; |
681
|
|
|
$hotspot_coordinates = isset($this->new_hotspot_coordinates[$i]) ? $this->new_hotspot_coordinates[$i] : null; |
682
|
|
|
$hotspot_type = isset($this->new_hotspot_type[$i]) ? $this->new_hotspot_type[$i] : null; |
683
|
|
|
$iid = isset($this->iid[$i]) ? $this->iid[$i] : 0; |
684
|
|
|
|
685
|
|
|
if (!isset($this->position[$i])) { |
686
|
|
|
$quizAnswer = new CQuizAnswer(); |
687
|
|
|
$quizAnswer |
688
|
|
|
->setQuestion($question) |
689
|
|
|
->setAnswer($answer) |
690
|
|
|
->setCorrect($correct) |
691
|
|
|
->setComment($comment) |
692
|
|
|
->setPonderation(!is_null($weighting) ? $weighting : 0.0) |
693
|
|
|
->setPosition($position) |
694
|
|
|
->setHotspotCoordinates($hotspot_coordinates) |
695
|
|
|
->setHotspotType($hotspot_type); |
696
|
|
|
|
697
|
|
|
$em->persist($quizAnswer); |
698
|
|
|
$em->flush(); |
699
|
|
|
|
700
|
|
|
$iid = $quizAnswer->getIid(); |
701
|
|
|
|
702
|
|
|
if ($iid) { |
|
|
|
|
703
|
|
|
if (in_array($questionType, [MATCHING, MATCHING_COMBINATION, MATCHING_DRAGGABLE, MATCHING_DRAGGABLE_COMBINATION], true)) { |
704
|
|
|
$answer = new self($this->questionId, $courseId, $this->exercise, false); |
705
|
|
|
$answer->read(); |
706
|
|
|
$correctAnswerId = $answer->selectAnswerIdByPosition($correct); |
707
|
|
|
|
708
|
|
|
if (in_array($questionType, [MATCHING, MATCHING_COMBINATION], true) && !$correctAnswerId) { |
709
|
|
|
continue; |
710
|
|
|
} |
711
|
|
|
$correctAnswerAutoId = $answer->selectAutoId($correct); |
712
|
|
|
$quizAnswer->setCorrect($correctAnswerAutoId ?: 0); |
713
|
|
|
} |
714
|
|
|
|
715
|
|
|
$em->persist($quizAnswer); |
716
|
|
|
$em->flush(); |
717
|
|
|
} |
718
|
|
|
} else { |
719
|
|
|
// https://support.chamilo.org/issues/6558 |
720
|
|
|
// function updateAnswers already escape_string, error if we do it twice. |
721
|
|
|
// Feed function updateAnswers with none escaped strings |
722
|
|
|
$this->updateAnswers( |
723
|
|
|
$iid, |
724
|
|
|
$this->new_answer[$i], |
725
|
|
|
$this->new_comment[$i], |
726
|
|
|
$this->new_correct[$i], |
727
|
|
|
$this->new_weighting[$i], |
728
|
|
|
$this->new_position[$i], |
729
|
|
|
null, |
730
|
|
|
$this->new_hotspot_coordinates[$i], |
731
|
|
|
$this->new_hotspot_type[$i] |
732
|
|
|
); |
733
|
|
|
} |
734
|
|
|
|
735
|
|
|
$answerList[$i] = $iid; |
736
|
|
|
} |
737
|
|
|
|
738
|
|
|
switch ($questionType) { |
739
|
|
|
case MATCHING_DRAGGABLE: |
740
|
|
|
foreach ($this->new_correct as $value => $status) { |
741
|
|
|
if (!empty($status)) { |
742
|
|
|
if (isset($answerList[$status])) { |
743
|
|
|
$correct = $answerList[$status]; |
744
|
|
|
} else { |
745
|
|
|
$correct = $status; |
746
|
|
|
} |
747
|
|
|
$myAutoId = $answerList[$value]; |
748
|
|
|
$sql = "UPDATE $answerTable |
749
|
|
|
SET correct = '$correct' |
750
|
|
|
WHERE |
751
|
|
|
iid = $myAutoId |
752
|
|
|
"; |
753
|
|
|
Database::query($sql); |
754
|
|
|
} |
755
|
|
|
} |
756
|
|
|
|
757
|
|
|
break; |
758
|
|
|
case MATCHING_DRAGGABLE_COMBINATION: |
759
|
|
|
foreach ($this->new_correct as $value => $status) { |
760
|
|
|
if (!empty($status)) { |
761
|
|
|
$correct = isset($answerList[$status]) ? $answerList[$status] : $status; |
762
|
|
|
$myAutoId = $answerList[$value]; |
763
|
|
|
$sql = "UPDATE $answerTable |
764
|
|
|
SET correct = '$correct' |
765
|
|
|
WHERE |
766
|
|
|
iid = $myAutoId |
767
|
|
|
"; |
768
|
|
|
Database::query($sql); |
769
|
|
|
} |
770
|
|
|
} |
771
|
|
|
break; |
772
|
|
|
case DRAGGABLE: |
773
|
|
|
foreach ($this->new_correct as $value => $status) { |
774
|
|
|
if (!empty($status)) { |
775
|
|
|
$correct = $answerList[$status]; |
776
|
|
|
$myAutoId = $answerList[$value]; |
777
|
|
|
$sql = "UPDATE $answerTable |
778
|
|
|
SET correct = '$correct' |
779
|
|
|
WHERE |
780
|
|
|
iid = $myAutoId |
781
|
|
|
"; |
782
|
|
|
Database::query($sql); |
783
|
|
|
} |
784
|
|
|
} |
785
|
|
|
|
786
|
|
|
break; |
787
|
|
|
} |
788
|
|
|
|
789
|
|
|
if (count($this->position) > $this->new_nbrAnswers) { |
790
|
|
|
$i = $this->new_nbrAnswers + 1; |
791
|
|
|
while (isset($this->position[$i])) { |
792
|
|
|
$position = $this->position[$i]; |
793
|
|
|
$sql = "DELETE FROM $answerTable |
794
|
|
|
WHERE |
795
|
|
|
question_id = '".$questionId."' AND |
796
|
|
|
position ='$position'"; |
797
|
|
|
Database::query($sql); |
798
|
|
|
$i++; |
799
|
|
|
} |
800
|
|
|
} |
801
|
|
|
|
802
|
|
|
// moves $new_* arrays |
803
|
|
|
$this->answer = $this->new_answer; |
804
|
|
|
$this->correct = $this->new_correct; |
805
|
|
|
$this->comment = $this->new_comment; |
806
|
|
|
$this->weighting = $this->new_weighting; |
807
|
|
|
$this->position = $this->new_position; |
808
|
|
|
$this->hotspot_coordinates = $this->new_hotspot_coordinates; |
809
|
|
|
$this->hotspot_type = $this->new_hotspot_type; |
810
|
|
|
$this->nbrAnswers = $this->new_nbrAnswers; |
811
|
|
|
|
812
|
|
|
$this->cancel(); |
813
|
|
|
} |
814
|
|
|
|
815
|
|
|
/** |
816
|
|
|
* Duplicates answers by copying them into another question. |
817
|
|
|
* |
818
|
|
|
* @author Olivier Brouckaert |
819
|
|
|
* |
820
|
|
|
* @param null $courseInfo destination course info (result of the function api_get_course_info() ) |
|
|
|
|
821
|
|
|
* |
822
|
|
|
* @throws \Doctrine\ORM\ORMException |
823
|
|
|
* @throws \Doctrine\ORM\OptimisticLockException |
824
|
|
|
*/ |
825
|
|
|
public function duplicate(Question $newQuestion, $courseInfo = null) |
826
|
|
|
{ |
827
|
|
|
$newQuestionId = $newQuestion->id; |
828
|
|
|
|
829
|
|
|
$em = Database::getManager(); |
830
|
|
|
$questionRepo = Container::getQuestionRepository(); |
831
|
|
|
$answerRepo = $em->getRepository(CQuizAnswer::class); |
832
|
|
|
$question = $questionRepo->find($newQuestionId); |
833
|
|
|
|
834
|
|
|
if (empty($courseInfo)) { |
835
|
|
|
$courseInfo = $this->course; |
836
|
|
|
} |
837
|
|
|
|
838
|
|
|
$fixedList = []; |
839
|
|
|
|
840
|
|
|
if (MULTIPLE_ANSWER_TRUE_FALSE === self::getQuestionType() || |
|
|
|
|
841
|
|
|
MULTIPLE_ANSWER_TRUE_FALSE_DEGREE_CERTAINTY === self::getQuestionType() |
842
|
|
|
) { |
843
|
|
|
// Selecting origin options |
844
|
|
|
$originOptions = Question::readQuestionOption($this->selectQuestionId()); |
845
|
|
|
|
846
|
|
|
if (!empty($originOptions)) { |
847
|
|
|
foreach ($originOptions as $item) { |
848
|
|
|
$newOptionList[] = $item['iid']; |
849
|
|
|
} |
850
|
|
|
} |
851
|
|
|
|
852
|
|
|
$destinationOptions = Question::readQuestionOption($newQuestionId); |
853
|
|
|
$i = 0; |
854
|
|
|
if (!empty($destinationOptions)) { |
855
|
|
|
foreach ($destinationOptions as $item) { |
856
|
|
|
$fixedList[$newOptionList[$i]] = $item['iid']; |
|
|
|
|
857
|
|
|
$i++; |
858
|
|
|
} |
859
|
|
|
} |
860
|
|
|
} |
861
|
|
|
|
862
|
|
|
// if at least one answer |
863
|
|
|
if (empty($this->nbrAnswers)) { |
864
|
|
|
return; |
865
|
|
|
} |
866
|
|
|
// inserts new answers into data base |
867
|
|
|
$correctAnswers = []; |
868
|
|
|
$onlyAnswers = []; |
869
|
|
|
$allAnswers = []; |
870
|
|
|
|
871
|
|
|
if (in_array($newQuestion->type, [MATCHING, MATCHING_COMBINATION, MATCHING_DRAGGABLE, MATCHING_DRAGGABLE_COMBINATION], true)) { |
872
|
|
|
$temp = []; |
873
|
|
|
for ($i = 1; $i <= $this->nbrAnswers; $i++) { |
874
|
|
|
$answer = [ |
875
|
|
|
'id' => $this->id[$i], |
876
|
|
|
'answer' => $this->answer[$i], |
877
|
|
|
'correct' => $this->correct[$i], |
878
|
|
|
'comment' => $this->comment[$i], |
879
|
|
|
'weighting' => $this->weighting[$i], |
880
|
|
|
'ponderation' => $this->weighting[$i], |
881
|
|
|
'position' => $this->position[$i], |
882
|
|
|
'hotspot_coordinates' => $this->hotspot_coordinates[$i], |
883
|
|
|
'hotspot_type' => $this->hotspot_type[$i], |
884
|
|
|
]; |
885
|
|
|
$temp[$answer['position']] = $answer; |
886
|
|
|
$allAnswers[$this->id[$i]] = $this->answer[$i]; |
887
|
|
|
} |
888
|
|
|
|
889
|
|
|
foreach ($temp as $answer) { |
890
|
|
|
if ($this->course['id'] != $courseInfo['id']) { |
891
|
|
|
// check resources inside html from ckeditor tool and copy correct urls into recipient course |
892
|
|
|
$answer['answer'] = DocumentManager::replaceUrlWithNewCourseCode( |
893
|
|
|
$answer['answer'], |
894
|
|
|
$this->course['id'], |
895
|
|
|
$courseInfo['id'] |
896
|
|
|
); |
897
|
|
|
|
898
|
|
|
$answer['comment'] = DocumentManager::replaceUrlWithNewCourseCode( |
899
|
|
|
$answer['comment'], |
900
|
|
|
$this->course['id'], |
901
|
|
|
$courseInfo['id'] |
902
|
|
|
); |
903
|
|
|
} |
904
|
|
|
|
905
|
|
|
$quizAnswer = new CQuizAnswer(); |
906
|
|
|
$quizAnswer |
907
|
|
|
->setQuestion($question) |
908
|
|
|
->setAnswer($answer['answer']) |
909
|
|
|
->setCorrect($answer['correct']) |
910
|
|
|
->setComment($answer['comment']) |
911
|
|
|
->setPonderation($answer['ponderation']) |
912
|
|
|
->setPosition($answer['position']) |
913
|
|
|
->setHotspotCoordinates($answer['hotspot_coordinates']) |
914
|
|
|
->setHotspotType($answer['hotspot_type']) |
915
|
|
|
; |
916
|
|
|
|
917
|
|
|
$em->persist($quizAnswer); |
918
|
|
|
$em->flush(); |
919
|
|
|
|
920
|
|
|
$answerId = $quizAnswer->getIid(); |
921
|
|
|
|
922
|
|
|
if ($answerId) { |
|
|
|
|
923
|
|
|
$em->persist($quizAnswer); |
924
|
|
|
$em->flush(); |
925
|
|
|
|
926
|
|
|
$correctAnswers[$answerId] = $answer['correct']; |
927
|
|
|
$onlyAnswers[$answerId] = $answer['answer']; |
928
|
|
|
} |
929
|
|
|
} |
930
|
|
|
} else { |
931
|
|
|
for ($i = 1; $i <= $this->nbrAnswers; $i++) { |
932
|
|
|
if ($this->course['id'] != $courseInfo['id']) { |
933
|
|
|
$this->answer[$i] = DocumentManager::replaceUrlWithNewCourseCode( |
934
|
|
|
$this->answer[$i], |
935
|
|
|
$this->course['id'], |
936
|
|
|
$courseInfo['id'] |
937
|
|
|
); |
938
|
|
|
$this->comment[$i] = DocumentManager::replaceUrlWithNewCourseCode( |
939
|
|
|
$this->comment[$i], |
940
|
|
|
$this->course['id'], |
941
|
|
|
$courseInfo['id'] |
942
|
|
|
); |
943
|
|
|
} |
944
|
|
|
|
945
|
|
|
$correct = $this->correct[$i]; |
946
|
|
|
if (MULTIPLE_ANSWER_TRUE_FALSE == $newQuestion->type || |
947
|
|
|
MULTIPLE_ANSWER_TRUE_FALSE_DEGREE_CERTAINTY == $newQuestion->type |
948
|
|
|
) { |
949
|
|
|
$correct = $fixedList[(int) $correct]; |
950
|
|
|
} |
951
|
|
|
|
952
|
|
|
$quizAnswer = new CQuizAnswer(); |
953
|
|
|
$quizAnswer |
954
|
|
|
->setQuestion($question) |
955
|
|
|
->setAnswer($this->answer[$i]) |
956
|
|
|
->setCorrect($correct) |
957
|
|
|
->setComment($this->comment[$i]) |
958
|
|
|
->setPonderation($this->weighting[$i]) |
959
|
|
|
->setPosition($this->position[$i]) |
960
|
|
|
->setHotspotCoordinates($this->hotspot_coordinates[$i]) |
961
|
|
|
->setHotspotType($this->hotspot_type[$i]); |
962
|
|
|
|
963
|
|
|
$em->persist($quizAnswer); |
964
|
|
|
$em->flush(); |
965
|
|
|
|
966
|
|
|
$answerId = $quizAnswer->getIid(); |
967
|
|
|
|
968
|
|
|
$correctAnswers[$answerId] = $correct; |
969
|
|
|
$onlyAnswers[$answerId] = $this->answer[$i]; |
970
|
|
|
$allAnswers[$this->id[$i]] = $this->answer[$i]; |
971
|
|
|
} |
972
|
|
|
} |
973
|
|
|
|
974
|
|
|
// Fix correct answers |
975
|
|
|
if (in_array($newQuestion->type, [DRAGGABLE, MATCHING, MATCHING_COMBINATION, MATCHING_DRAGGABLE, MATCHING_DRAGGABLE_COMBINATION], true)) { |
976
|
|
|
$onlyAnswersFlip = array_flip($onlyAnswers); |
977
|
|
|
foreach ($correctAnswers as $answerIdItem => $correctAnswer) { |
978
|
|
|
if (!isset($allAnswers[$correctAnswer]) || !isset($onlyAnswersFlip[$allAnswers[$correctAnswer]])) { |
979
|
|
|
continue; |
980
|
|
|
} |
981
|
|
|
$answer = $answerRepo->find($answerIdItem); |
982
|
|
|
$answer->setCorrect((int) $onlyAnswersFlip[$allAnswers[$correctAnswer]]); |
983
|
|
|
|
984
|
|
|
$em->persist($answer); |
985
|
|
|
$em->flush(); |
986
|
|
|
} |
987
|
|
|
} |
988
|
|
|
} |
989
|
|
|
|
990
|
|
|
/** |
991
|
|
|
* Get the necessary JavaScript for some answers. |
992
|
|
|
* |
993
|
|
|
* @return string |
994
|
|
|
*/ |
995
|
|
|
public function getJs() |
996
|
|
|
{ |
997
|
|
|
return "<script> |
998
|
|
|
$(window).on('load', function() { |
999
|
|
|
jsPlumb.ready(function() { |
1000
|
|
|
if ($('#drag{$this->questionId}_question').length > 0) { |
1001
|
|
|
setTimeout(function() { |
1002
|
|
|
// Initialize MatchingDraggable |
1003
|
|
|
MatchingDraggable.init('{$this->questionId}'); |
1004
|
|
|
}, 1000); |
1005
|
|
|
} |
1006
|
|
|
}); |
1007
|
|
|
}); |
1008
|
|
|
</script>"; |
1009
|
|
|
} |
1010
|
|
|
|
1011
|
|
|
/** |
1012
|
|
|
* Check if a answer is correct by an answer auto id. |
1013
|
|
|
* |
1014
|
|
|
* @param int $needle The answer auto id |
1015
|
|
|
* |
1016
|
|
|
* @return bool |
1017
|
|
|
*/ |
1018
|
|
|
public function isCorrectByAutoId($needle) |
1019
|
|
|
{ |
1020
|
|
|
$key = 0; |
1021
|
|
|
if (is_array($this->autoId)) { |
1022
|
|
|
foreach ($this->autoId as $autoIdKey => $autoId) { |
1023
|
|
|
if ($autoId == $needle) { |
1024
|
|
|
$key = $autoIdKey; |
1025
|
|
|
} |
1026
|
|
|
} |
1027
|
|
|
} |
1028
|
|
|
|
1029
|
|
|
if (!$key) { |
1030
|
|
|
return false; |
1031
|
|
|
} |
1032
|
|
|
|
1033
|
|
|
return $this->isCorrect($key) ? true : false; |
1034
|
|
|
} |
1035
|
|
|
|
1036
|
|
|
/** |
1037
|
|
|
* Get answers already added to question. |
1038
|
|
|
* |
1039
|
|
|
* @return array |
1040
|
|
|
*/ |
1041
|
|
|
public function getAnswers() |
1042
|
|
|
{ |
1043
|
|
|
$table = Database::get_course_table(TABLE_QUIZ_ANSWER); |
1044
|
|
|
$questionId = $this->questionId; |
1045
|
|
|
|
1046
|
|
|
$sql = "SELECT * FROM $table |
1047
|
|
|
WHERE question_id = $questionId |
1048
|
|
|
ORDER BY position"; |
1049
|
|
|
|
1050
|
|
|
$result = Database::query($sql); |
1051
|
|
|
|
1052
|
|
|
$answers = []; |
1053
|
|
|
|
1054
|
|
|
// while a record is found |
1055
|
|
|
while ($answer = Database::fetch_assoc($result)) { |
1056
|
|
|
$answers[] = $answer; |
1057
|
|
|
} |
1058
|
|
|
|
1059
|
|
|
return $answers; |
1060
|
|
|
} |
1061
|
|
|
|
1062
|
|
|
} |
1063
|
|
|
|