ILIAS  release_5-3 Revision v5.3.23-19-g915713cf615
class.assMultipleChoice.php
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1<?php
2/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */
3
4require_once './Modules/TestQuestionPool/classes/class.assQuestion.php';
5require_once './Modules/Test/classes/inc.AssessmentConstants.php';
6require_once './Modules/TestQuestionPool/interfaces/interface.ilObjQuestionScoringAdjustable.php';
7require_once './Modules/TestQuestionPool/interfaces/interface.ilObjAnswerScoringAdjustable.php';
8require_once './Modules/TestQuestionPool/interfaces/interface.iQuestionCondition.php';
9require_once './Modules/TestQuestionPool/classes/class.ilUserQuestionResult.php';
10require_once 'Modules/TestQuestionPool/interfaces/interface.ilAssSpecificFeedbackOptionLabelProvider.php';
11
28{
36 public $answers;
37
47
51
53 protected $thumb_size;
54
58 protected $selectionLimit;
59
64 {
65 $this->isSingleline = $isSingleline;
66 }
67
71 public function getIsSingleline()
72 {
74 }
75
79 public function setLastChange($lastChange)
80 {
81 $this->lastChange = $lastChange;
82 }
83
87 public function getLastChange()
88 {
89 return $this->lastChange;
90 }
91
106 public function __construct(
107 $title = "",
108 $comment = "",
109 $author = "",
110 $owner = -1,
111 $question = "",
113 ) {
114 parent::__construct($title, $comment, $author, $owner, $question);
115 $this->output_type = $output_type;
116 $this->thumb_size = 150;
117 $this->answers = array();
118 $this->shuffle = 1;
119 $this->selectionLimit = null;
120 $this->feedback_setting = 0;
121 }
122
126 public function getSelectionLimit()
127 {
129 }
130
135 {
136 $this->selectionLimit = $selectionLimit;
137 }
138
145 public function isComplete()
146 {
147 if (strlen($this->title) and ($this->author) and ($this->question) and (count($this->answers)) and ($this->getMaximumPoints() > 0)) {
148 return true;
149 } else {
150 return false;
151 }
152 }
153
159 public function saveToDb($original_id = "")
160 {
164
165 $this->ensureNoInvalidObligation($this->getId());
166 parent::saveToDb($original_id);
167 }
168
172 protected function rebuildThumbnails()
173 {
174 if ($this->isSingleline && ($this->getThumbSize())) {
175 foreach ($this->getAnswers() as $answer) {
176 if (strlen($answer->getImage())) {
177 $this->generateThumbForFile($this->getImagePath(), $answer->getImage());
178 }
179 }
180 }
181 }
182
186 public function getThumbPrefix()
187 {
188 return "thumb.";
189 }
190
195 protected function generateThumbForFile($path, $file)
196 {
198 if (@file_exists($filename)) {
199 $thumbpath = $path . $this->getThumbPrefix() . $file;
200 $path_info = @pathinfo($filename);
201 $ext = "";
202 switch (strtoupper($path_info['extension'])) {
203 case 'PNG':
204 $ext = 'PNG';
205 break;
206 case 'GIF':
207 $ext = 'GIF';
208 break;
209 default:
210 $ext = 'JPEG';
211 break;
212 }
213 ilUtil::convertImage($filename, $thumbpath, $ext, $this->getThumbSize());
214 }
215 }
216
222 public function loadFromDb($question_id)
223 {
224 global $ilDB;
225 $hasimages = 0;
226
227 $result = $ilDB->queryF(
228 "SELECT qpl_questions.*, " . $this->getAdditionalTableName() . ".* FROM qpl_questions LEFT JOIN " . $this->getAdditionalTableName() . " ON " . $this->getAdditionalTableName() . ".question_fi = qpl_questions.question_id WHERE qpl_questions.question_id = %s",
229 array("integer"),
230 array($question_id)
231 );
232 if ($result->numRows() == 1) {
233 $data = $ilDB->fetchAssoc($result);
234 $this->setId($question_id);
235 $this->setObjId($data["obj_fi"]);
236 $this->setTitle($data["title"]);
237 $this->setNrOfTries($data['nr_of_tries']);
238 $this->setComment($data["description"]);
239 $this->setOriginalId($data["original_id"]);
240 $this->setAuthor($data["author"]);
241 $this->setPoints($data["points"]);
242 $this->setOwner($data["owner"]);
243 include_once("./Services/RTE/classes/class.ilRTE.php");
244 $this->setQuestion(ilRTE::_replaceMediaObjectImageSrc($data["question_text"], 1));
245 $shuffle = (is_null($data['shuffle'])) ? true : $data['shuffle'];
246 $this->setShuffle($shuffle);
247 $this->setEstimatedWorkingTime(substr($data["working_time"], 0, 2), substr($data["working_time"], 3, 2), substr($data["working_time"], 6, 2));
248 $this->setThumbSize($data['thumb_size']);
249 $this->isSingleline = ($data['allow_images']) ? false : true;
250 $this->lastChange = $data['tstamp'];
251 $this->setSelectionLimit((int) $data['selection_limit'] > 0 ? (int) $data['selection_limit'] : null);
252 $this->feedback_setting = $data['feedback_setting'];
253
254 try {
255 $this->setAdditionalContentEditingMode($data['add_cont_edit_mode']);
256 } catch (ilTestQuestionPoolException $e) {
257 }
258 }
259
260 $result = $ilDB->queryF(
261 "SELECT * FROM qpl_a_mc WHERE question_fi = %s ORDER BY aorder ASC",
262 array('integer'),
263 array($question_id)
264 );
265 include_once "./Modules/TestQuestionPool/classes/class.assAnswerMultipleResponseImage.php";
266 if ($result->numRows() > 0) {
267 while ($data = $ilDB->fetchAssoc($result)) {
268 $imagefilename = $this->getImagePath() . $data["imagefile"];
269 if (!@file_exists($imagefilename)) {
270 $data["imagefile"] = "";
271 }
272 include_once("./Services/RTE/classes/class.ilRTE.php");
273 $data["answertext"] = ilRTE::_replaceMediaObjectImageSrc($data["answertext"], 1);
274 array_push($this->answers, new ASS_AnswerMultipleResponseImage($data["answertext"], $data["points"], $data["aorder"], $data["points_unchecked"], $data["imagefile"]));
275 }
276 }
277
278 parent::loadFromDb($question_id);
279 }
280
284 public function duplicate($for_test = true, $title = "", $author = "", $owner = "", $testObjId = null)
285 {
286 if ($this->id <= 0) {
287 // The question has not been saved. It cannot be duplicated
288 return;
289 }
290 // duplicate the question in database
291 $this_id = $this->getId();
292 $thisObjId = $this->getObjId();
293
294 $clone = $this;
295 include_once("./Modules/TestQuestionPool/classes/class.assQuestion.php");
297 $clone->id = -1;
298
299 if ((int) $testObjId > 0) {
300 $clone->setObjId($testObjId);
301 }
302
303 if ($title) {
304 $clone->setTitle($title);
305 }
306
307 if ($author) {
308 $clone->setAuthor($author);
309 }
310 if ($owner) {
311 $clone->setOwner($owner);
312 }
313
314 if ($for_test) {
315 $clone->saveToDb($original_id);
316 } else {
317 $clone->saveToDb();
318 }
319
320 // copy question page content
321 $clone->copyPageOfQuestion($this_id);
322 // copy XHTML media objects
323 $clone->copyXHTMLMediaObjectsOfQuestion($this_id);
324 // duplicate the images
325 $clone->duplicateImages($this_id, $thisObjId);
326
327 $clone->onDuplicate($thisObjId, $this_id, $clone->getObjId(), $clone->getId());
328
329 return $clone->id;
330 }
331
335 public function copyObject($target_questionpool_id, $title = "")
336 {
337 if ($this->id <= 0) {
338 // The question has not been saved. It cannot be duplicated
339 return;
340 }
341 // duplicate the question in database
342 $clone = $this;
343 include_once("./Modules/TestQuestionPool/classes/class.assQuestion.php");
345 $clone->id = -1;
346 $source_questionpool_id = $this->getObjId();
347 $clone->setObjId($target_questionpool_id);
348 if ($title) {
349 $clone->setTitle($title);
350 }
351 $clone->saveToDb();
352 // copy question page content
353 $clone->copyPageOfQuestion($original_id);
354 // copy XHTML media objects
355 $clone->copyXHTMLMediaObjectsOfQuestion($original_id);
356 // duplicate the image
357 $clone->copyImages($original_id, $source_questionpool_id);
358
359 $clone->onCopy($source_questionpool_id, $original_id, $clone->getObjId(), $clone->getId());
360
361 return $clone->id;
362 }
363
364 public function createNewOriginalFromThisDuplicate($targetParentId, $targetQuestionTitle = "")
365 {
366 if ($this->id <= 0) {
367 // The question has not been saved. It cannot be duplicated
368 return;
369 }
370
371 include_once("./Modules/TestQuestionPool/classes/class.assQuestion.php");
372
373 $sourceQuestionId = $this->id;
374 $sourceParentId = $this->getObjId();
375
376 // duplicate the question in database
377 $clone = $this;
378 $clone->id = -1;
379
380 $clone->setObjId($targetParentId);
381
382 if ($targetQuestionTitle) {
383 $clone->setTitle($targetQuestionTitle);
384 }
385
386 $clone->saveToDb();
387 // copy question page content
388 $clone->copyPageOfQuestion($sourceQuestionId);
389 // copy XHTML media objects
390 $clone->copyXHTMLMediaObjectsOfQuestion($sourceQuestionId);
391 // duplicate the image
392 $clone->copyImages($sourceQuestionId, $sourceParentId);
393
394 $clone->onCopy($sourceParentId, $sourceQuestionId, $clone->getObjId(), $clone->getId());
395
396 return $clone->id;
397 }
398
405 public function getOutputType()
406 {
407 return $this->output_type;
408 }
409
418 {
419 $this->output_type = $output_type;
420 }
421
435 public function addAnswer(
436 $answertext = "",
437 $points = 0.0,
438 $points_unchecked = 0.0,
439 $order = 0,
440 $answerimage = ""
441 ) {
442 include_once "./Modules/TestQuestionPool/classes/class.assAnswerMultipleResponseImage.php";
443 if (array_key_exists($order, $this->answers)) {
444 // insert answer
445 $answer = new ASS_AnswerMultipleResponseImage($answertext, $points, $order, $points_unchecked, $answerimage);
446 $newchoices = array();
447 for ($i = 0; $i < $order; $i++) {
448 array_push($newchoices, $this->answers[$i]);
449 }
450 array_push($newchoices, $answer);
451 for ($i = $order; $i < count($this->answers); $i++) {
452 $changed = $this->answers[$i];
453 $changed->setOrder($i+1);
454 array_push($newchoices, $changed);
455 }
456 $this->answers = $newchoices;
457 } else {
458 // add answer
459 $answer = new ASS_AnswerMultipleResponseImage($answertext, $points, count($this->answers), $points_unchecked, $answerimage);
460 array_push($this->answers, $answer);
461 }
462 }
463
470 public function getAnswerCount()
471 {
472 return count($this->answers);
473 }
474
483 public function getAnswer($index = 0)
484 {
485 if ($index < 0) {
486 return null;
487 }
488 if (count($this->answers) < 1) {
489 return null;
490 }
491 if ($index >= count($this->answers)) {
492 return null;
493 }
494
495 return $this->answers[$index];
496 }
497
505 public function deleteAnswer($index = 0)
506 {
507 if ($index < 0) {
508 return;
509 }
510 if (count($this->answers) < 1) {
511 return;
512 }
513 if ($index >= count($this->answers)) {
514 return;
515 }
516 $answer = $this->answers[$index];
517 if (strlen($answer->getImage())) {
518 $this->deleteImage($answer->getImage());
519 }
520 unset($this->answers[$index]);
521 $this->answers = array_values($this->answers);
522 for ($i = 0; $i < count($this->answers); $i++) {
523 if ($this->answers[$i]->getOrder() > $index) {
524 $this->answers[$i]->setOrder($i);
525 }
526 }
527 }
528
534 public function flushAnswers()
535 {
536 $this->answers = array();
537 }
538
544 public function getMaximumPoints()
545 {
546 $points = 0;
547 $allpoints = 0;
548 foreach ($this->answers as $key => $value) {
549 if ($value->getPoints() > $value->getPointsUnchecked()) {
550 $allpoints += $value->getPoints();
551 } else {
552 $allpoints += $value->getPointsUnchecked();
553 }
554 }
555 return $allpoints;
556 }
557
569 public function calculateReachedPoints($active_id, $pass = null, $authorizedSolution = true, $returndetails = false)
570 {
571 if ($returndetails) {
572 throw new ilTestException('return details not implemented for ' . __METHOD__);
573 }
574
575 global $ilDB;
576
577 $found_values = array();
578 if (is_null($pass)) {
579 $pass = $this->getSolutionMaxPass($active_id);
580 }
581 $result = $this->getCurrentSolutionResultSet($active_id, $pass, $authorizedSolution);
582 while ($data = $ilDB->fetchAssoc($result)) {
583 if (strcmp($data["value1"], "") != 0) {
584 array_push($found_values, $data["value1"]);
585 }
586 }
587
588 $points = $this->calculateReachedPointsForSolution($found_values, $active_id);
589
590 return $points;
591 }
592
593 public function validateSolutionSubmit()
594 {
595 $submit = $this->getSolutionSubmit();
596
597 if ($this->getSelectionLimit()) {
598 if (count($submit) > $this->getSelectionLimit()) {
599 $failureMsg = sprintf(
600 $this->lng->txt('ass_mc_sel_lim_exhausted_hint'),
601 $this->getSelectionLimit(),
602 $this->getAnswerCount()
603 );
604
605 ilUtil::sendFailure($failureMsg, true);
606 return false;
607 }
608 }
609
610 return true;
611 }
612
613 protected function isForcedEmptySolution($solutionSubmit)
614 {
615 if (!count($solutionSubmit) && !empty($_POST['tst_force_form_diff_input'])) {
616 return true;
617 }
618
619 return false;
620 }
621
630 public function saveWorkingData($active_id, $pass = null, $authorized = true)
631 {
633 global $ilDB;
634
635 if (is_null($pass)) {
636 include_once "./Modules/Test/classes/class.ilObjTest.php";
637 $pass = ilObjTest::_getPass($active_id);
638 }
639
640 $entered_values = 0;
641
642 $this->getProcessLocker()->executeUserSolutionUpdateLockOperation(function () use (&$entered_values, $active_id, $pass, $authorized) {
643 $this->removeCurrentSolution($active_id, $pass, $authorized);
644
645 $solutionSubmit = $this->getSolutionSubmit();
646
647 foreach ($solutionSubmit as $value) {
648 if (strlen($value)) {
649 $this->saveCurrentSolution($active_id, $pass, $value, null, $authorized);
650 $entered_values++;
651 }
652 }
653
654 // fau: testNav - write a dummy entry for the evil mc questions with "None of the above" checked
655 if ($this->isForcedEmptySolution($solutionSubmit)) {
656 $this->saveCurrentSolution($active_id, $pass, 'mc_none_above', null, $authorized);
657 $entered_values++;
658 }
659 // fau.
660 });
661
662 if ($entered_values) {
663 include_once("./Modules/Test/classes/class.ilObjAssessmentFolder.php");
665 assQuestion::logAction($this->lng->txtlng("assessment", "log_user_entered_values", ilObjAssessmentFolder::_getLogLanguage()), $active_id, $this->getId());
666 }
667 } else {
668 include_once("./Modules/Test/classes/class.ilObjAssessmentFolder.php");
670 assQuestion::logAction($this->lng->txtlng("assessment", "log_user_not_entered_values", ilObjAssessmentFolder::_getLogLanguage()), $active_id, $this->getId());
671 }
672 }
673
674 return true;
675 }
676
677 public function saveAdditionalQuestionDataToDb()
678 {
680 global $ilDB;
681 $oldthumbsize = 0;
682 if ($this->isSingleline && ($this->getThumbSize())) {
683 // get old thumbnail size
684 $result = $ilDB->queryF(
685 "SELECT thumb_size FROM " . $this->getAdditionalTableName(
686 ) . " WHERE question_fi = %s",
687 array( "integer" ),
688 array( $this->getId() )
689 );
690 if ($result->numRows() == 1) {
691 $data = $ilDB->fetchAssoc($result);
692 $oldthumbsize = $data['thumb_size'];
693 }
694 }
695
696 if (!$this->isSingleline) {
698 }
699
700 // save additional data
701 $ilDB->replace(
702 $this->getAdditionalTableName(),
703 array(
704 'shuffle' => array('text', $this->getShuffle()),
705 'allow_images' => array('text', $this->isSingleline ? 0 : 1),
706 'thumb_size' => array('integer', strlen($this->getThumbSize()) ? $this->getThumbSize() : null),
707 'selection_limit' => array('integer', $this->getSelectionLimit()),
708 'feedback_setting' => array('integer', $this->getSpecificFeedbackSetting())
709 ),
710 array(
711 'question_fi' => array('integer', $this->getId())
712 )
713 );
714 }
715
716 public function saveAnswerSpecificDataToDb()
717 {
719 global $ilDB;
720 $ilDB->manipulateF(
721 "DELETE FROM qpl_a_mc WHERE question_fi = %s",
722 array( 'integer' ),
723 array( $this->getId() )
724 );
725
726 foreach ($this->answers as $key => $value) {
727 $answer_obj = $this->answers[$key];
728 $next_id = $ilDB->nextId('qpl_a_mc');
729 $ilDB->manipulateF(
730 "INSERT INTO qpl_a_mc (answer_id, question_fi, answertext, points, points_unchecked, aorder, imagefile, tstamp) VALUES (%s, %s, %s, %s, %s, %s, %s, %s)",
731 array( 'integer', 'integer', 'text', 'float', 'float', 'integer', 'text', 'integer' ),
732 array(
733 $next_id,
734 $this->getId(),
735 ilRTE::_replaceMediaObjectImageSrc($answer_obj->getAnswertext(), 0),
736 $answer_obj->getPoints(),
737 $answer_obj->getPointsUnchecked(),
738 $answer_obj->getOrder(),
739 $answer_obj->getImage(),
740 time()
741 )
742 );
743 }
744 $this->rebuildThumbnails();
745 }
746
750 protected function reworkWorkingData($active_id, $pass, $obligationsAnswered, $authorized)
751 {
752 // nothing to rework!
753 }
754
755 public function syncWithOriginal()
756 {
757 if ($this->getOriginalId()) {
758 $this->syncImages();
759 parent::syncWithOriginal();
760 }
761 }
762
768 public function getQuestionType()
769 {
770 return "assMultipleChoice";
771 }
772
778 public function getAdditionalTableName()
779 {
780 return "qpl_qst_mc";
781 }
782
788 public function getAnswerTableName()
789 {
790 return "qpl_a_mc";
791 }
792
800 public function setImageFile($image_filename, $image_tempfilename = "")
801 {
802 $result = 0;
803 if (!empty($image_tempfilename)) {
804 $image_filename = str_replace(" ", "_", $image_filename);
805 $imagepath = $this->getImagePath();
806 if (!file_exists($imagepath)) {
807 ilUtil::makeDirParents($imagepath);
808 }
809 if (!ilUtil::moveUploadedFile($image_tempfilename, $image_filename, $imagepath . $image_filename)) {
810 $result = 2;
811 } else {
812 include_once "./Services/MediaObjects/classes/class.ilObjMediaObject.php";
813 $mimetype = ilObjMediaObject::getMimeType($imagepath . $image_filename);
814 if (!preg_match("/^image/", $mimetype)) {
815 unlink($imagepath . $image_filename);
816 $result = 1;
817 } else {
818 // create thumbnail file
819 if ($this->isSingleline && ($this->getThumbSize())) {
820 $this->generateThumbForFile($imagepath, $image_filename);
821 }
822 }
823 }
824 }
825 return $result;
826 }
827
833 protected function deleteImage($image_filename)
834 {
835 $imagepath = $this->getImagePath();
836 @unlink($imagepath . $image_filename);
837 $thumbpath = $imagepath . $this->getThumbPrefix() . $image_filename;
838 @unlink($thumbpath);
839 }
840
841 public function duplicateImages($question_id, $objectId = null)
842 {
844 global $ilLog;
845
846 $imagepath = $this->getImagePath();
847 $imagepath_original = str_replace("/$this->id/images", "/$question_id/images", $imagepath);
848
849 if ((int) $objectId > 0) {
850 $imagepath_original = str_replace("/$this->obj_id/", "/$objectId/", $imagepath_original);
851 }
852
853 foreach ($this->answers as $answer) {
854 $filename = $answer->getImage();
855 if (strlen($filename)) {
856 if (!file_exists($imagepath)) {
857 ilUtil::makeDirParents($imagepath);
858 }
859
860 if (file_exists($imagepath_original . $filename)) {
861 if (!copy($imagepath_original . $filename, $imagepath . $filename)) {
862 $ilLog->warning(sprintf(
863 "Could not clone source image '%s' to '%s' (srcQuestionId: %s|tgtQuestionId: %s|srcParentObjId: %s|tgtParentObjId: %s)",
864 $imagepath_original . $filename,
865 $imagepath . $filename,
866 $question_id,
867 $this->id,
868 $objectId,
869 $this->obj_id
870 ));
871 }
872 }
873
874 if (file_exists($imagepath_original . $this->getThumbPrefix() . $filename)) {
875 if (!copy($imagepath_original . $this->getThumbPrefix() . $filename, $imagepath . $this->getThumbPrefix() . $filename)) {
876 $ilLog->warning(sprintf(
877 "Could not clone thumbnail source image '%s' to '%s' (srcQuestionId: %s|tgtQuestionId: %s|srcParentObjId: %s|tgtParentObjId: %s)",
878 $imagepath_original . $this->getThumbPrefix() . $filename,
879 $imagepath . $this->getThumbPrefix() . $filename,
880 $question_id,
881 $this->id,
882 $objectId,
883 $this->obj_id
884 ));
885 }
886 }
887 }
888 }
889 }
890
891 public function copyImages($question_id, $source_questionpool)
892 {
893 global $ilLog;
894 $imagepath = $this->getImagePath();
895 $imagepath_original = str_replace("/$this->id/images", "/$question_id/images", $imagepath);
896 $imagepath_original = str_replace("/$this->obj_id/", "/$source_questionpool/", $imagepath_original);
897 foreach ($this->answers as $answer) {
898 $filename = $answer->getImage();
899 if (strlen($filename)) {
900 if (!file_exists($imagepath)) {
901 ilUtil::makeDirParents($imagepath);
902 }
903 if (!@copy($imagepath_original . $filename, $imagepath . $filename)) {
904 $ilLog->write("image could not be duplicated!!!!", $ilLog->ERROR);
905 $ilLog->write("object: " . print_r($this, true), $ilLog->ERROR);
906 }
907 if (@file_exists($imagepath_original . $this->getThumbPrefix() . $filename)) {
908 if (!@copy($imagepath_original . $this->getThumbPrefix() . $filename, $imagepath . $this->getThumbPrefix() . $filename)) {
909 $ilLog->write("image thumbnail could not be duplicated!!!!", $ilLog->ERROR);
910 $ilLog->write("object: " . print_r($this, true), $ilLog->ERROR);
911 }
912 }
913 }
914 }
915 }
916
920 protected function syncImages()
921 {
922 global $ilLog;
923
924 $imagepath = $this->getImagePath();
925
926 $question_id = $this->getOriginalId();
927 $originalObjId = parent::lookupParentObjId($this->getOriginalId());
928 $imagepath_original = $this->getImagePath($question_id, $originalObjId);
929
930 ilUtil::delDir($imagepath_original);
931 foreach ($this->answers as $answer) {
932 $filename = $answer->getImage();
933 if (strlen($filename)) {
934 if (@file_exists($imagepath . $filename)) {
935 if (!file_exists($imagepath)) {
936 ilUtil::makeDirParents($imagepath);
937 }
938 if (!file_exists($imagepath_original)) {
939 ilUtil::makeDirParents($imagepath_original);
940 }
941 if (!@copy($imagepath . $filename, $imagepath_original . $filename)) {
942 $ilLog->write("image could not be duplicated!!!!", $ilLog->ERROR);
943 $ilLog->write("object: " . print_r($this, true), $ilLog->ERROR);
944 }
945 }
946 if (@file_exists($imagepath . $this->getThumbPrefix() . $filename)) {
947 if (!@copy($imagepath . $this->getThumbPrefix() . $filename, $imagepath_original . $this->getThumbPrefix() . $filename)) {
948 $ilLog->write("image thumbnail could not be duplicated!!!!", $ilLog->ERROR);
949 $ilLog->write("object: " . print_r($this, true), $ilLog->ERROR);
950 }
951 }
952 }
953 }
954 }
955
960 {
961 $text = parent::getRTETextWithMediaObjects();
962 foreach ($this->answers as $index => $answer) {
963 $text .= $this->feedbackOBJ->getSpecificAnswerFeedbackContent($this->getId(), $index);
964 $answer_obj = $this->answers[$index];
965 $text .= $answer_obj->getAnswertext();
966 }
967 return $text;
968 }
969
973 public function &getAnswers()
974 {
975 return $this->answers;
976 }
977
981 public function setExportDetailsXLS($worksheet, $startrow, $active_id, $pass)
982 {
983 parent::setExportDetailsXLS($worksheet, $startrow, $active_id, $pass);
984
985 $solution = $this->getSolutionValues($active_id, $pass);
986
987 $i = 1;
988 foreach ($this->getAnswers() as $id => $answer) {
989 $worksheet->setCell($startrow + $i, 0, $answer->getAnswertext());
990 $worksheet->setBold($worksheet->getColumnCoord(0) . ($startrow + $i));
991 $checked = false;
992 foreach ($solution as $solutionvalue) {
993 if ($id == $solutionvalue["value1"]) {
994 $checked = true;
995 }
996 }
997 if ($checked) {
998 $worksheet->setCell($startrow + $i, 1, 1);
999 } else {
1000 $worksheet->setCell($startrow + $i, 1, 0);
1001 }
1002 $i++;
1003 }
1004
1005 return $startrow + $i + 1;
1006 }
1007
1008 public function getThumbSize()
1009 {
1010 return $this->thumb_size;
1011 }
1012
1013 public function setThumbSize($a_size)
1014 {
1015 $this->thumb_size = $a_size;
1016 }
1017
1022 {
1023 foreach ($this->getAnswers() as $answer) {
1024 /* @var ASS_AnswerBinaryStateImage $answer */
1025 $answer->setAnswertext($migrator->migrateToLmContent($answer->getAnswertext()));
1026 }
1027 }
1028
1032 public function toJSON()
1033 {
1034 require_once './Services/RTE/classes/class.ilRTE.php';
1035 $result = array();
1036 $result['id'] = (int) $this->getId();
1037 $result['type'] = (string) $this->getQuestionType();
1038 $result['title'] = (string) $this->getTitle();
1039 $result['question'] = $this->formatSAQuestion($this->getQuestion());
1040 $result['nr_of_tries'] = (int) $this->getNrOfTries();
1041 $result['shuffle'] = (bool) $this->getShuffle();
1042 $result['selection_limit'] = (int) $this->getSelectionLimit();
1043 $result['feedback'] = array(
1044 'onenotcorrect' => $this->formatSAQuestion($this->feedbackOBJ->getGenericFeedbackTestPresentation($this->getId(), false)),
1045 'allcorrect' => $this->formatSAQuestion($this->feedbackOBJ->getGenericFeedbackTestPresentation($this->getId(), true))
1046 );
1047
1048 $answers = array();
1049 $has_image = false;
1050 foreach ($this->getAnswers() as $key => $answer_obj) {
1051 if ((string) $answer_obj->getImage()) {
1052 $has_image = true;
1053 }
1054 array_push($answers, array(
1055 "answertext" => (string) $this->formatSAQuestion($answer_obj->getAnswertext()),
1056 "points_checked" => (float) $answer_obj->getPointsChecked(),
1057 "points_unchecked" => (float) $answer_obj->getPointsUnchecked(),
1058 "order" => (int) $answer_obj->getOrder(),
1059 "image" => (string) $answer_obj->getImage(),
1060 "feedback" => $this->formatSAQuestion(
1061 $this->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation($this->getId(), $key)
1062 )
1063 ));
1064 }
1065 $result['answers'] = $answers;
1066
1067 if ($has_image) {
1068 $result['path'] = $this->getImagePathWeb();
1069 $result['thumb'] = $this->getThumbSize();
1070 }
1071
1072 $mobs = ilObjMediaObject::_getMobsOfObject("qpl:html", $this->getId());
1073 $result['mobs'] = $mobs;
1074
1075 return json_encode($result);
1076 }
1077
1078 public function removeAnswerImage($index)
1079 {
1080 $answer = $this->answers[$index];
1081 if (is_object($answer)) {
1082 $this->deleteImage($answer->getImage());
1083 $answer->setImage('');
1084 }
1085 }
1086
1088 {
1089 global $ilUser;
1090
1091 $multilineAnswerSetting = $ilUser->getPref("tst_multiline_answers");
1092 if ($multilineAnswerSetting != 1) {
1093 $multilineAnswerSetting = 0;
1094 }
1095 return $multilineAnswerSetting;
1096 }
1097
1098 public function setMultilineAnswerSetting($a_setting = 0)
1099 {
1100 global $ilUser;
1101 $ilUser->writePref("tst_multiline_answers", $a_setting);
1102 }
1103
1113 public function setSpecificFeedbackSetting($a_feedback_setting)
1114 {
1115 $this->feedback_setting = $a_feedback_setting;
1116 }
1117
1128 {
1129 if ($this->feedback_setting) {
1131 } else {
1132 return 1;
1133 }
1134 }
1135
1137 {
1138 return 'feedback_correct_sc_mc';
1139 }
1140
1152 public function isAnswered($active_id, $pass = null)
1153 {
1154 $numExistingSolutionRecords = assQuestion::getNumExistingSolutionRecords($active_id, $pass, $this->getId());
1155
1156 return $numExistingSolutionRecords > 0;
1157 }
1158
1170 public static function isObligationPossible($questionId)
1171 {
1173 global $ilDB;
1174
1175 $query = "
1176 SELECT SUM(points) points_for_checked_answers
1177 FROM qpl_a_mc
1178 WHERE question_fi = %s AND points > 0
1179 ";
1180
1181 $res = $ilDB->queryF($query, array('integer'), array($questionId));
1182
1183 $row = $ilDB->fetchAssoc($res);
1184
1185 return $row['points_for_checked_answers'] > 0;
1186 }
1187
1196 public function ensureNoInvalidObligation($questionId)
1197 {
1199 global $ilDB;
1200
1201 $query = "
1202 SELECT SUM(qpl_a_mc.points) points_for_checked_answers,
1203 test_question_id
1204
1205 FROM tst_test_question
1206
1207 INNER JOIN qpl_a_mc
1208 ON qpl_a_mc.question_fi = tst_test_question.question_fi
1209
1210 WHERE tst_test_question.question_fi = %s
1211 AND tst_test_question.obligatory = 1
1212
1213 GROUP BY test_question_id
1214 ";
1215
1216 $res = $ilDB->queryF($query, array('integer'), array($questionId));
1217
1218 $updateTestQuestionIds = array();
1219
1220 while ($row = $ilDB->fetchAssoc($res)) {
1221 if ($row['points_for_checked_answers'] <= 0) {
1222 $updateTestQuestionIds[] = $row['test_question_id'];
1223 }
1224 }
1225
1226 if (count($updateTestQuestionIds)) {
1227 $test_question_id__IN__updateTestQuestionIds = $ilDB->in(
1228 'test_question_id',
1229 $updateTestQuestionIds,
1230 false,
1231 'integer'
1232 );
1233
1234 $query = "
1235 UPDATE tst_test_question
1236 SET obligatory = 0
1237 WHERE $test_question_id__IN__updateTestQuestionIds
1238 ";
1239
1240 $ilDB->manipulate($query);
1241 }
1242 }
1243
1247 protected function getSolutionSubmit()
1248 {
1249 $solutionSubmit = array();
1250 foreach ($_POST as $key => $value) {
1251 if (preg_match("/^multiple_choice_result_(\d+)/", $key)) {
1252 if (strlen($value)) {
1253 $solutionSubmit[] = $value;
1254 }
1255 }
1256 }
1257 return $solutionSubmit;
1258 }
1259
1265 protected function calculateReachedPointsForSolution($found_values, $active_id = 0)
1266 {
1267 $points = 0;
1268 foreach ($this->answers as $key => $answer) {
1269 if (in_array($key, $found_values)) {
1270 $points += $answer->getPoints();
1271 } else {
1272 $points += $answer->getPointsUnchecked();
1273 }
1274 }
1275 if ($active_id) {
1276 include_once "./Modules/Test/classes/class.ilObjTest.php";
1277 $mc_scoring = ilObjTest::_getMCScoring($active_id);
1278 if (($mc_scoring == 0) && (count($found_values) == 0)) {
1279 $points = 0;
1280 }
1281 }
1282 return $points;
1283 }
1284
1293 public function getOperators($expression)
1294 {
1295 require_once "./Modules/TestQuestionPool/classes/class.ilOperatorsExpressionMapping.php";
1297 }
1298
1303 public function getExpressionTypes()
1304 {
1305 return array(
1310 );
1311 }
1312
1321 public function getUserQuestionResult($active_id, $pass)
1322 {
1324 global $ilDB;
1325 $result = new ilUserQuestionResult($this, $active_id, $pass);
1326
1327 $maxStep = $this->lookupMaxStep($active_id, $pass);
1328
1329 if ($maxStep !== null) {
1330 $data = $ilDB->queryF(
1331 "SELECT value1+1 as value1 FROM tst_solutions WHERE active_fi = %s AND pass = %s AND question_fi = %s AND step = %s",
1332 array("integer", "integer", "integer","integer"),
1333 array($active_id, $pass, $this->getId(), $maxStep)
1334 );
1335 } else {
1336 $data = $ilDB->queryF(
1337 "SELECT value1+1 as value1 FROM tst_solutions WHERE active_fi = %s AND pass = %s AND question_fi = %s",
1338 array("integer", "integer", "integer"),
1339 array($active_id, $pass, $this->getId())
1340 );
1341 }
1342
1343 while ($row = $ilDB->fetchAssoc($data)) {
1344 $result->addKeyValue($row["value1"], $row["value1"]);
1345 }
1346
1347 $points = $this->calculateReachedPoints($active_id, $pass);
1348 $max_points = $this->getMaximumPoints();
1349
1350 $result->setReachedPercentage(($points/$max_points) * 100);
1351
1352 return $result;
1353 }
1354
1363 public function getAvailableAnswerOptions($index = null)
1364 {
1365 if ($index !== null) {
1366 return $this->getAnswer($index);
1367 } else {
1368 return $this->getAnswers();
1369 }
1370 }
1371
1372 protected function buildTestPresentationConfig()
1373 {
1374 $config = parent::buildTestPresentationConfig();
1375 $config->setUseUnchangedAnswerLabel($this->lng->txt('tst_mc_label_none_above'));
1376 return $config;
1377 }
1378}
sprintf('%.4f', $callTime)
$worksheet
$result
$_POST["username"]
ASS_AnswerBinaryStateImage is a class for answers with a binary state indicator (checked/unchecked,...
An exception for terminatinating execution or to throw for unit testing.
Class for multiple choice tests.
buildTestPresentationConfig()
build basic test question configuration instance
syncImages()
Sync images of a MC question on synchronisation with the original question.
toJSON()
Returns a JSON representation of the question.
getSpecificFeedbackSetting()
Gets the current feedback settings in effect for the question.
setExportDetailsXLS($worksheet, $startrow, $active_id, $pass)
{Creates an Excel worksheet for the detailed cumulated results of this question.object}
copyImages($question_id, $source_questionpool)
saveToDb($original_id="")
Saves a assMultipleChoice object to a database.
loadFromDb($question_id)
Loads a assMultipleChoice object from a database.
duplicate($for_test=true, $title="", $author="", $owner="", $testObjId=null)
Duplicates an assMultipleChoiceQuestion.
getMaximumPoints()
Returns the maximum points, a learner can reach answering the question.
getAnswerCount()
Returns the number of answers.
getAnswerTableName()
Returns the name of the answer table in the database.
reworkWorkingData($active_id, $pass, $obligationsAnswered, $authorized)
{Reworks the allready saved working data if neccessary.}
isForcedEmptySolution($solutionSubmit)
getAdditionalTableName()
Returns the name of the additional question data table in the database.
addAnswer( $answertext="", $points=0.0, $points_unchecked=0.0, $order=0, $answerimage="")
Adds a possible answer for a multiple choice question.
setSpecificFeedbackSetting($a_feedback_setting)
Sets the feedback settings in effect for the question.
getAvailableAnswerOptions($index=null)
If index is null, the function returns an array with all anwser options Else it returns the specific ...
setSelectionLimit($selectionLimit)
calculateReachedPointsForSolution($found_values, $active_id=0)
getOutputType()
Gets the multiple choice output type which is either OUTPUT_ORDER (=0) or OUTPUT_RANDOM (=1).
copyObject($target_questionpool_id, $title="")
Copies an assMultipleChoice object.
createNewOriginalFromThisDuplicate($targetParentId, $targetQuestionTitle="")
lmMigrateQuestionTypeSpecificContent(ilAssSelfAssessmentMigrator $migrator)
setMultilineAnswerSetting($a_setting=0)
isComplete()
Returns true, if a multiple choice question is complete for use.
flushAnswers()
Deletes all answers.
deleteAnswer($index=0)
Deletes an answer with a given index.
getQuestionType()
Returns the question type of the question.
deleteImage($image_filename)
Deletes an image file.
setImageFile($image_filename, $image_tempfilename="")
Sets the image file and uploads the image to the object's image directory.
__construct( $title="", $comment="", $author="", $owner=-1, $question="", $output_type=OUTPUT_ORDER)
assMultipleChoice constructor
setIsSingleline($isSingleline)
setOutputType($output_type=OUTPUT_ORDER)
Sets the output type of the assMultipleChoice object.
calculateReachedPoints($active_id, $pass=null, $authorizedSolution=true, $returndetails=false)
Returns the points, a learner has reached answering the question.
isAnswered($active_id, $pass=null)
returns boolean wether the question is answered during test pass or not
getAnswer($index=0)
Returns an answer with a given index.
generateThumbForFile($path, $file)
getExpressionTypes()
Get all available expression types for a specific question.
getRTETextWithMediaObjects()
Collects all text in the question which could contain media objects which were created with the Rich ...
rebuildThumbnails()
Rebuild the thumbnail images with a new thumbnail size.
& getAnswers()
Returns a reference to the answers array.
getOperators($expression)
Get all available operations for a specific question.
Abstract basic class which is to be extended by the concrete assessment question type classes.
getCurrentSolutionResultSet($active_id, $pass, $authorized=true)
Get a restulset for the current user solution for a this question by active_id and pass.
getSolutionValues($active_id, $pass=null, $authorized=true)
Loads solutions of a given user from the database an returns it.
static _getOriginalId($question_id)
Returns the original id of a question.
formatSAQuestion($a_q)
Format self assessment question.
setShuffle($shuffle=true)
Sets the shuffle flag.
setId($id=-1)
Sets the id of the assQuestion object.
setOriginalId($original_id)
setObjId($obj_id=0)
Set the object id of the container object.
static isObligationPossible($questionId)
returns boolean wether it is possible to set this question type as obligatory or not considering the ...
getSolutionMaxPass($active_id)
Returns the maximum pass a users question solution.
saveQuestionDataToDb($original_id="")
getId()
Gets the id of the assQuestion object.
saveCurrentSolution($active_id, $pass, $value1, $value2, $authorized=true, $tstamp=null)
getObjId()
Get the object id of the container object.
setTitle($title="")
Sets the title string of the assQuestion object.
setOwner($owner="")
Sets the creator/owner ID of the assQuestion object.
setEstimatedWorkingTime($hour=0, $min=0, $sec=0)
Sets the estimated working time of a question from given hour, minute and second.
static logAction($logtext="", $active_id="", $question_id="")
Logs an action into the Test&Assessment log.
getImagePath($question_id=null, $object_id=null)
Returns the image path for web accessable images of a question.
removeCurrentSolution($active_id, $pass, $authorized=true)
static getNumExistingSolutionRecords($activeId, $pass, $questionId)
returns the number of existing solution records for the given test active / pass and given question i...
setAuthor($author="")
Sets the authors name of the assQuestion object.
saveWorkingData($active_id, $pass=null, $authorized=true)
Saves the learners input of the question to the database.
getShuffle()
Gets the shuffle flag.
getTitle()
Gets the title string of the assQuestion object.
setPoints($a_points)
Sets the maximum available points for the question.
setComment($comment="")
Sets the comment string of the assQuestion object.
setNrOfTries($a_nr_of_tries)
getQuestion()
Gets the question string of the question object.
setAdditionalContentEditingMode($additinalContentEditingMode)
setter for additional content editing mode for this question
setQuestion($question="")
Sets the question string of the question object.
getImagePathWeb()
Returns the web image path for web accessable images of a question.
static _getLogLanguage()
retrieve the log language for assessment logging
static _enabledAssessmentLogging()
check wether assessment logging is enabled or not
static getMimeType($a_file, $a_external=null)
get mime type for file
static _getMobsOfObject($a_type, $a_id, $a_usage_hist_nr=0, $a_lang="-")
get mobs of object
static _getPass($active_id)
Retrieves the actual pass of a given user for a given test.
static _getMCScoring($active_id)
Gets the scoring type for multiple choice questions.
static _replaceMediaObjectImageSrc($a_text, $a_direction=0, $nic=IL_INST_ID)
Replaces image source from mob image urls with the mob id or replaces mob id with the correct image s...
Base Exception for all Exceptions relating to Modules/Test.
Class ilUserQuestionResult.
static delDir($a_dir, $a_clean_only=false)
removes a dir and all its content (subdirs and files) recursively
static convertImage( $a_from, $a_to, $a_target_format="", $a_geometry="", $a_background_color="")
convert image
static sendFailure($a_info="", $a_keep=false)
Send Failure Message to Screen.
static makeDirParents($a_dir)
Create a new directory and all parent directories.
$key
Definition: croninfo.php:18
$i
Definition: disco.tpl.php:19
const OUTPUT_ORDER
Class iQuestionCondition.
getUserQuestionResult($active_id, $pass)
Get the user solution for a question by active_id and the test pass.
Interface ilObjAnswerScoringAdjustable.
saveAnswerSpecificDataToDb()
Saves the answer specific records into a question types answer table.
Interface ilObjQuestionScoringAdjustable.
saveAdditionalQuestionDataToDb()
Saves a record to the question types additional data table.
$index
Definition: metadata.php:60
$query
if(!file_exists("$old.txt")) if( $old===$new) if(file_exists("$new.txt")) $file
foreach($_POST as $key=> $value) $res
global $ilDB
$mobs
$ilUser
Definition: imgupload.php:18
$text
Definition: errorreport.php:18