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class.assSingleChoiceGUI.php
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1 <?php
2 /* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */
3 
4 require_once './Modules/TestQuestionPool/classes/class.assQuestionGUI.php';
5 require_once './Modules/TestQuestionPool/interfaces/interface.ilGuiQuestionScoringAdjustable.php';
6 require_once './Modules/TestQuestionPool/interfaces/interface.ilGuiAnswerScoringAdjustable.php';
7 require_once './Modules/Test/classes/inc.AssessmentConstants.php';
8 
22 class assSingleChoiceGUI extends assQuestionGUI implements ilGuiQuestionScoringAdjustable, ilGuiAnswerScoringAdjustable
23 {
24  var $choiceKeys;
25 
33  public function __construct($id = -1)
34  {
35  parent::__construct();
36  include_once "./Modules/TestQuestionPool/classes/class.assSingleChoice.php";
37  $this->object = new assSingleChoice();
38  if ($id >= 0)
39  {
40  $this->object->loadFromDb($id);
41  }
42  }
43 
51  public function writePostData($always = false)
52  {
53  $hasErrors = (!$always) ? $this->editQuestion(true) : false;
54  if (!$hasErrors)
55  {
56  require_once 'Services/Form/classes/class.ilPropertyFormGUI.php';
57  $this->writeQuestionGenericPostData();
58  $this->writeQuestionSpecificPostData(new ilPropertyFormGUI());
59  $this->writeAnswerSpecificPostData(new ilPropertyFormGUI());
60  $this->saveTaxonomyAssignments();
61  return 0;
62  }
63  return 1;
64  }
65 
70  public function editQuestion($checkonly = FALSE)
71  {
72  $save = $this->isSaveCommand();
73  $this->getQuestionTemplate();
74 
75  include_once("./Services/Form/classes/class.ilPropertyFormGUI.php");
76  $form = new ilPropertyFormGUI();
77  $form->setFormAction($this->ctrl->getFormAction($this));
78  $form->setTitle($this->outQuestionType());
79  $isSingleline = ($this->object->lastChange == 0 && !array_key_exists('types', $_POST)) ? (($this->object->getMultilineAnswerSetting()) ? false : true) : $this->object->isSingleline;
80  if ($checkonly) $isSingleline = ($_POST['types'] == 0) ? true : false;
81  if ($isSingleline)
82  {
83  $form->setMultipart(TRUE);
84  }
85  else
86  {
87  $form->setMultipart(FALSE);
88  }
89  $form->setTableWidth("100%");
90  $form->setId("asssinglechoice");
91 
92  $this->addBasicQuestionFormProperties( $form );
93  $this->populateQuestionSpecificFormPart( $form );
94  $this->populateAnswerSpecificFormPart( $form );
95 
96 
97  $this->populateTaxonomyFormSection($form);
98 
99  $this->addQuestionFormCommandButtons($form);
100 
101  $errors = false;
102 
103  if ($save)
104  {
105  $form->setValuesByPost();
106  $errors = !$form->checkInput();
107  $form->setValuesByPost(); // again, because checkInput now performs the whole stripSlashes handling and we need this if we don't want to have duplication of backslashes
108  if ($errors) $checkonly = false;
109  }
110 
111  if (!$checkonly) $this->tpl->setVariable("QUESTION_DATA", $form->getHTML());
112  return $errors;
113  }
114 
118  public function uploadchoice()
119  {
120  $this->writePostData(true);
121  $position = key($_POST['cmd']['uploadchoice']);
122  $this->editQuestion();
123  }
124 
128  public function removeimagechoice()
129  {
130  $this->writePostData(true);
131  $position = key($_POST['cmd']['removeimagechoice']);
132  $filename = $_POST['choice']['imagename'][$position];
133  $this->object->removeAnswerImage($position);
134  $this->editQuestion();
135  }
136 
140  public function addchoice()
141  {
142  $this->writePostData(true);
143  $position = key($_POST['cmd']['addchoice']);
144  $this->object->addAnswer("", 0, $position+1);
145  $this->editQuestion();
146  }
147 
151  public function removechoice()
152  {
153  $this->writePostData(true);
154  $position = key($_POST['cmd']['removechoice']);
155  $this->object->deleteAnswer($position);
156  $this->editQuestion();
157  }
158 
172  function getSolutionOutput(
173  $active_id,
174  $pass = NULL,
175  $graphicalOutput = FALSE,
176  $result_output = FALSE,
177  $show_question_only = TRUE,
178  $show_feedback = FALSE,
179  $show_correct_solution = FALSE,
180  $show_manual_scoring = FALSE,
181  $show_question_text = TRUE
182  )
183  {
184  // shuffle output
185  $keys = $this->getChoiceKeys();
186 
187  // get the solution of the user for the active pass or from the last pass if allowed
188  $user_solution = "";
189  if (($active_id > 0) && (!$show_correct_solution))
190  {
191  $solutions =& $this->object->getSolutionValues($active_id, $pass);
192  foreach ($solutions as $idx => $solution_value)
193  {
194  $user_solution = $solution_value["value1"];
195  }
196  }
197  else
198  {
199  $found_index = -1;
200  $max_points = 0;
201  foreach ($this->object->answers as $index => $answer)
202  {
203  if ($answer->getPoints() > $max_points)
204  {
205  $max_points = $answer->getPoints();
206  $found_index = $index;
207  }
208  }
209  $user_solution = $found_index;
210  }
211  // generate the question output
212  include_once "./Services/UICore/classes/class.ilTemplate.php";
213  $template = new ilTemplate("tpl.il_as_qpl_mc_sr_output_solution.html", TRUE, TRUE, "Modules/TestQuestionPool");
214  $solutiontemplate = new ilTemplate("tpl.il_as_tst_solution_output.html",TRUE, TRUE, "Modules/TestQuestionPool");
215  foreach ($keys as $answer_id)
216  {
217  $answer = $this->object->answers[$answer_id];
218  if (($active_id > 0) && (!$show_correct_solution))
219  {
220  if ($graphicalOutput)
221  {
222  // output of ok/not ok icons for user entered solutions
223  $ok = FALSE;
224  if (strcmp($user_solution, $answer_id) == 0)
225  {
226  if ($answer->getPoints() == $this->object->getMaximumPoints())
227  {
228  $ok = TRUE;
229  }
230  else
231  {
232  $ok = FALSE;
233  }
234  if ($ok)
235  {
236  $template->setCurrentBlock("icon_ok");
237  $template->setVariable("ICON_OK", ilUtil::getImagePath("icon_ok.svg"));
238  $template->setVariable("TEXT_OK", $this->lng->txt("answer_is_right"));
239  $template->parseCurrentBlock();
240  }
241  else
242  {
243  $template->setCurrentBlock("icon_not_ok");
244  if ($answer->getPoints() > 0)
245  {
246  $template->setVariable("ICON_NOT_OK", ilUtil::getImagePath("icon_mostly_ok.svg"));
247  $template->setVariable("TEXT_NOT_OK", $this->lng->txt("answer_is_not_correct_but_positive"));
248  }
249  else
250  {
251  $template->setVariable("ICON_NOT_OK", ilUtil::getImagePath("icon_not_ok.svg"));
252  $template->setVariable("TEXT_NOT_OK", $this->lng->txt("answer_is_wrong"));
253  }
254  $template->parseCurrentBlock();
255  }
256  }
257  if (strlen($user_solution) == 0)
258  {
259  $template->setCurrentBlock("icon_not_ok");
260  $template->setVariable("ICON_NOT_OK", ilUtil::getImagePath("icon_not_ok.svg"));
261  $template->setVariable("TEXT_NOT_OK", $this->lng->txt("answer_is_wrong"));
262  $template->parseCurrentBlock();
263  }
264  }
265  }
266  if (strlen($answer->getImage()))
267  {
268  $template->setCurrentBlock("answer_image");
269  if ($this->object->getThumbSize())
270  {
271  $template->setVariable("ANSWER_IMAGE_URL", $this->object->getImagePathWeb() . $this->object->getThumbPrefix() . $answer->getImage());
272  }
273  else
274  {
275  $template->setVariable("ANSWER_IMAGE_URL", $this->object->getImagePathWeb() . $answer->getImage());
276  }
277  $alt = $answer->getImage();
278  if (strlen($answer->getAnswertext()))
279  {
280  $alt = $answer->getAnswertext();
281  }
282  $alt = preg_replace("/<[^>]*?>/", "", $alt);
283  $template->setVariable("ANSWER_IMAGE_ALT", ilUtil::prepareFormOutput($alt));
284  $template->setVariable("ANSWER_IMAGE_TITLE", ilUtil::prepareFormOutput($alt));
285  $template->parseCurrentBlock();
286  }
287  if ($show_feedback)
288  {
289  $this->populateInlineFeedback($template, $answer_id, $user_solution);
290  }
291  $template->setCurrentBlock("answer_row");
292  $template->setVariable("ANSWER_TEXT", $this->object->prepareTextareaOutput($answer->getAnswertext(), TRUE));
293  if (strcmp($user_solution, $answer_id) == 0)
294  {
295  $template->setVariable("SOLUTION_IMAGE", ilUtil::getHtmlPath(ilUtil::getImagePath("radiobutton_checked.png")));
296  $template->setVariable("SOLUTION_ALT", $this->lng->txt("checked"));
297  }
298  else
299  {
300  $template->setVariable("SOLUTION_IMAGE", ilUtil::getHtmlPath(ilUtil::getImagePath("radiobutton_unchecked.png")));
301  $template->setVariable("SOLUTION_ALT", $this->lng->txt("unchecked"));
302  }
303  if ($result_output)
304  {
305  $points = $this->object->answers[$answer_id]->getPoints();
306  $resulttext = ($points == 1) ? "(%s " . $this->lng->txt("point") . ")" : "(%s " . $this->lng->txt("points") . ")";
307  $template->setVariable("RESULT_OUTPUT", sprintf($resulttext, $points));
308  }
309  $template->parseCurrentBlock();
310  }
311  $questiontext = $this->object->getQuestion();
312  if ($show_question_text==true)
313  {
314  $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($questiontext, TRUE));
315  }
316  $questionoutput = $template->get();
317  $feedback = ($show_feedback) ? $this->getAnswerFeedbackOutput($active_id, $pass) : "";
318  if (strlen($feedback)) $solutiontemplate->setVariable("FEEDBACK", $this->object->prepareTextareaOutput( $feedback, true ));
319  $solutiontemplate->setVariable("SOLUTION_OUTPUT", $questionoutput);
320 
321  $solutionoutput = $solutiontemplate->get();
322  if (!$show_question_only)
323  {
324  // get page object output
325  $solutionoutput = $this->getILIASPage($solutionoutput);
326  }
327  return $solutionoutput;
328  }
329 
330  public function getPreview($show_question_only = FALSE, $showInlineFeedback = false)
331  {
332  $keys = $this->getChoiceKeys();
333 
334  // generate the question output
335  include_once "./Services/UICore/classes/class.ilTemplate.php";
336  $template = new ilTemplate("tpl.il_as_qpl_mc_sr_output.html", TRUE, TRUE, "Modules/TestQuestionPool");
337  foreach ($keys as $answer_id)
338  {
339  $answer = $this->object->answers[$answer_id];
340  if (strlen($answer->getImage()))
341  {
342  if ($this->object->getThumbSize())
343  {
344  $template->setCurrentBlock("preview");
345  $template->setVariable("URL_PREVIEW", $this->object->getImagePathWeb() . $answer->getImage());
346  $template->setVariable("TEXT_PREVIEW", $this->lng->txt('preview'));
347  $template->setVariable("IMG_PREVIEW", ilUtil::getImagePath('enlarge.svg'));
348  $template->setVariable("ANSWER_IMAGE_URL", $this->object->getImagePathWeb() . $this->object->getThumbPrefix() . $answer->getImage());
349  list($width, $height, $type, $attr) = getimagesize($this->object->getImagePath() . $answer->getImage());
350  $alt = $answer->getImage();
351  if (strlen($answer->getAnswertext()))
352  {
353  $alt = $answer->getAnswertext();
354  }
355  $alt = preg_replace("/<[^>]*?>/", "", $alt);
356  $template->setVariable("ANSWER_IMAGE_ALT", ilUtil::prepareFormOutput($alt));
357  $template->setVariable("ANSWER_IMAGE_TITLE", ilUtil::prepareFormOutput($alt));
358  $template->parseCurrentBlock();
359  }
360  else
361  {
362  $template->setCurrentBlock("answer_image");
363  $template->setVariable("ANSWER_IMAGE_URL", $this->object->getImagePathWeb() . $answer->getImage());
364  list($width, $height, $type, $attr) = getimagesize($this->object->getImagePath() . $answer->getImage());
365  $alt = $answer->getImage();
366  if (strlen($answer->getAnswertext()))
367  {
368  $alt = $answer->getAnswertext();
369  }
370  $alt = preg_replace("/<[^>]*?>/", "", $alt);
371  $template->setVariable("ATTR", $attr);
372  $template->setVariable("ANSWER_IMAGE_ALT", ilUtil::prepareFormOutput($alt));
373  $template->setVariable("ANSWER_IMAGE_TITLE", ilUtil::prepareFormOutput($alt));
374  $template->parseCurrentBlock();
375  }
376  }
377  if( $showInlineFeedback && is_object($this->getPreviewSession()) )
378  {
379  $this->populateInlineFeedback($template, $answer_id, $this->getPreviewSession()->getParticipantsSolution());
380  }
381  $template->setCurrentBlock("answer_row");
382  $template->setVariable("QID", $this->object->getId().'ID');
383  $template->setVariable("ANSWER_ID", $answer_id);
384  $template->setVariable("ANSWER_TEXT", $this->object->prepareTextareaOutput($answer->getAnswertext(), TRUE));
385 
386  if( is_object($this->getPreviewSession()) )
387  {
388  $user_solution = $this->getPreviewSession()->getParticipantsSolution();
389  if (strcmp($user_solution, $answer_id) == 0)
390  {
391  $template->setVariable("CHECKED_ANSWER", " checked=\"checked\"");
392  }
393  }
394 
395  $template->parseCurrentBlock();
396  }
397  $questiontext = $this->object->getQuestion();
398  $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($questiontext, TRUE));
399  $questionoutput = $template->get();
400  if (!$show_question_only)
401  {
402  // get page object output
403  $questionoutput = $this->getILIASPage($questionoutput);
404  }
405  return $questionoutput;
406  }
407 
408  function getTestOutput($active_id, $pass = NULL, $is_postponed = FALSE, $use_post_solutions = FALSE, $show_feedback = FALSE)
409  {
410  $keys = $this->getChoiceKeys();
411 
412  // get the solution of the user for the active pass or from the last pass if allowed
413  $user_solution = "";
414  if ($active_id)
415  {
416  $solutions = NULL;
417  include_once "./Modules/Test/classes/class.ilObjTest.php";
418  if (!ilObjTest::_getUsePreviousAnswers($active_id, true))
419  {
420  if (is_null($pass)) $pass = ilObjTest::_getPass($active_id);
421  }
422  $solutions =& $this->object->getSolutionValues($active_id, $pass);
423  foreach ($solutions as $idx => $solution_value)
424  {
425  $user_solution = $solution_value["value1"];
426  }
427  }
428 
429  // generate the question output
430  include_once "./Services/UICore/classes/class.ilTemplate.php";
431  $template = new ilTemplate("tpl.il_as_qpl_mc_sr_output.html", TRUE, TRUE, "Modules/TestQuestionPool");
432  foreach ($keys as $answer_id)
433  {
434  $answer = $this->object->answers[$answer_id];
435  if (strlen($answer->getImage()))
436  {
437  if ($this->object->getThumbSize())
438  {
439  $template->setCurrentBlock("preview");
440  $template->setVariable("URL_PREVIEW", $this->object->getImagePathWeb() . $answer->getImage());
441  $template->setVariable("TEXT_PREVIEW", $this->lng->txt('preview'));
442  $template->setVariable("IMG_PREVIEW", ilUtil::getImagePath('enlarge.svg'));
443  $template->setVariable("ANSWER_IMAGE_URL", $this->object->getImagePathWeb() . $this->object->getThumbPrefix() . $answer->getImage());
444  list($width, $height, $type, $attr) = getimagesize($this->object->getImagePath() . $answer->getImage());
445  $alt = $answer->getImage();
446  if (strlen($answer->getAnswertext()))
447  {
448  $alt = $answer->getAnswertext();
449  }
450  $alt = preg_replace("/<[^>]*?>/", "", $alt);
451  $template->setVariable("ANSWER_IMAGE_ALT", ilUtil::prepareFormOutput($alt));
452  $template->setVariable("ANSWER_IMAGE_TITLE", ilUtil::prepareFormOutput($alt));
453  $template->parseCurrentBlock();
454  }
455  else
456  {
457  $template->setCurrentBlock("answer_image");
458  $template->setVariable("ANSWER_IMAGE_URL", $this->object->getImagePathWeb() . $answer->getImage());
459  list($width, $height, $type, $attr) = getimagesize($this->object->getImagePath() . $answer->getImage());
460  $alt = $answer->getImage();
461  if (strlen($answer->getAnswertext()))
462  {
463  $alt = $answer->getAnswertext();
464  }
465  $alt = preg_replace("/<[^>]*?>/", "", $alt);
466  $template->setVariable("ATTR", $attr);
467  $template->setVariable("ANSWER_IMAGE_ALT", ilUtil::prepareFormOutput($alt));
468  $template->setVariable("ANSWER_IMAGE_TITLE", ilUtil::prepareFormOutput($alt));
469  $template->parseCurrentBlock();
470  }
471  }
472  if ($show_feedback)
473  {
474  $feedbackOutputRequired = false;
475 
476  switch( $this->object->getSpecificFeedbackSetting() )
477  {
478  case 1:
479  $feedbackOutputRequired = true;
480  break;
481 
482  case 2:
483  if (strcmp($user_solution, $answer_id) == 0)
484  {
485  $feedbackOutputRequired = true;
486  }
487  break;
488 
489  case 3:
490  if ($this->object->getAnswer($answer_id)->getPoints() > 0)
491  {
492  $feedbackOutputRequired = true;
493  }
494  break;
495  }
496 
497  if($feedbackOutputRequired)
498  {
499  $fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation(
500  $this->object->getId(), $answer_id
501  );
502  if (strlen($fb))
503  {
504  $template->setCurrentBlock("feedback");
505  $template->setVariable("FEEDBACK", $this->object->prepareTextareaOutput( $fb, true ));
506  $template->parseCurrentBlock();
507  }
508  }
509  }
510  $template->setCurrentBlock("answer_row");
511  $template->setVariable("ANSWER_ID", $answer_id);
512  $template->setVariable("ANSWER_TEXT", $this->object->prepareTextareaOutput($answer->getAnswertext(), TRUE));
513  if (strcmp($user_solution, $answer_id) == 0)
514  {
515  $template->setVariable("CHECKED_ANSWER", " checked=\"checked\"");
516  }
517  $template->parseCurrentBlock();
518  }
519  $questiontext = $this->object->getQuestion();
520  $template->setVariable("QUESTIONTEXT", $this->object->prepareTextareaOutput($questiontext, TRUE));
521  $questionoutput = $template->get();
522  $pageoutput = $this->outQuestionPage("", $is_postponed, $active_id, $questionoutput);
523  return $pageoutput;
524  }
525 
533  function setQuestionTabs()
534  {
535  global $rbacsystem, $ilTabs;
536 
537  $ilTabs->clearTargets();
538 
539  $this->ctrl->setParameterByClass("ilAssQuestionPageGUI", "q_id", $_GET["q_id"]);
540  include_once "./Modules/TestQuestionPool/classes/class.assQuestion.php";
541  $q_type = $this->object->getQuestionType();
542 
543  if (strlen($q_type))
544  {
545  $classname = $q_type . "GUI";
546  $this->ctrl->setParameterByClass(strtolower($classname), "sel_question_types", $q_type);
547  $this->ctrl->setParameterByClass(strtolower($classname), "q_id", $_GET["q_id"]);
548  }
549 
550  if ($_GET["q_id"])
551  {
552  if ($rbacsystem->checkAccess('write', $_GET["ref_id"]))
553  {
554  // edit page
555  $ilTabs->addTarget("edit_page",
556  $this->ctrl->getLinkTargetByClass("ilAssQuestionPageGUI", "edit"),
557  array("edit", "insert", "exec_pg"),
558  "", "", $force_active);
559  }
560 
561  $this->addTab_QuestionPreview($ilTabs);
562  }
563 
564  $force_active = false;
565  if ($rbacsystem->checkAccess('write', $_GET["ref_id"]))
566  {
567  $url = "";
568  if ($classname) $url = $this->ctrl->getLinkTargetByClass($classname, "editQuestion");
569  // edit question properties
570  $ilTabs->addTarget("edit_question",
571  $url,
572  array("editQuestion", "save", "saveEdit", "addchoice", "removechoice", "removeimagechoice", "uploadchoice", "originalSyncForm"),
573  $classname, "", $force_active);
574  }
575 
576  // add tab for question feedback within common class assQuestionGUI
577  $this->addTab_QuestionFeedback($ilTabs);
578 
579  // add tab for question hint within common class assQuestionGUI
580  $this->addTab_QuestionHints($ilTabs);
581 
582  // add tab for question's suggested solution within common class assQuestionGUI
583  $this->addTab_SuggestedSolution($ilTabs, $classname);
584 
585  // Assessment of questions sub menu entry
586  if ($_GET["q_id"])
587  {
588  $ilTabs->addTarget("statistics",
589  $this->ctrl->getLinkTargetByClass($classname, "assessment"),
590  array("assessment"),
591  $classname, "");
592  }
593 
594  $this->addBackTab($ilTabs);
595  }
596 
597  /*
598  * Create the key index numbers for the array of choices
599  *
600  * @return array
601  */
602  function getChoiceKeys()
603  {
604  if (strcmp($_GET["activecommand"], "directfeedback") == 0)
605  {
606  if (is_array($_SESSION["choicekeys"])) $this->choiceKeys = $_SESSION["choicekeys"];
607  }
608  if (!is_array($this->choiceKeys))
609  {
610  $this->choiceKeys = array_keys($this->object->answers);
611  if ($this->object->getShuffle())
612  {
613  $this->choiceKeys = $this->object->pcArrayShuffle($this->choiceKeys);
614  }
615  }
616  $_SESSION["choicekeys"] = $this->choiceKeys;
617  return $this->choiceKeys;
618  }
619 
620  function getSpecificFeedbackOutput($active_id, $pass)
621  {
622  // No return value, this question type supports inline specific feedback.
623  $output = "";
624  return $this->object->prepareTextareaOutput($output, TRUE);
625  }
626 
627  public function writeQuestionSpecificPostData(ilPropertyFormGUI $form)
628  {
629  $this->object->setShuffle( $_POST["shuffle"] );
630  $this->object->setMultilineAnswerSetting( $_POST["types"] );
631  if (is_array( $_POST['choice']['imagename'] ) && $_POST["types"] == 1)
632  {
633  $this->object->isSingleline = true;
634  ilUtil::sendInfo( $this->lng->txt( 'info_answer_type_change' ), true );
635  }
636  else
637  {
638  $this->object->isSingleline = ($_POST["types"] == 0) ? true : false;
639  }
640  $this->object->setThumbSize( (strlen( $_POST["thumb_size"] )) ? $_POST["thumb_size"] : "" );
641  }
642 
643  public function populateQuestionSpecificFormPart(\ilPropertyFormGUI $form)
644  {
645  $isSingleline = ($this->object->lastChange == 0 && !array_key_exists( 'types',$_POST)) ? (($this->object->getMultilineAnswerSetting()) ? false : true) : $this->object->isSingleline;
646  // shuffle
647  $shuffle = new ilCheckboxInputGUI($this->lng->txt( "shuffle_answers" ), "shuffle");
648  $shuffle->setValue( 1 );
649  $shuffle->setChecked( $this->object->getShuffle() );
650  $shuffle->setRequired( FALSE );
651  $form->addItem( $shuffle );
652 
653  if ($this->object->getId())
654  {
655  $hidden = new ilHiddenInputGUI("", "ID");
656  $hidden->setValue( $this->object->getId() );
657  $form->addItem( $hidden );
658  }
659 
660  if (!$this->object->getSelfAssessmentEditingMode())
661  {
662  // Answer types
663  $types = new ilSelectInputGUI($this->lng->txt( "answer_types" ), "types");
664  $types->setRequired( false );
665  $types->setValue( ($isSingleline) ? 0 : 1 );
666  $types->setOptions( array(
667  0 => $this->lng->txt( 'answers_singleline' ),
668  1 => $this->lng->txt( 'answers_multiline' ),
669  )
670  );
671  $form->addItem( $types );
672  }
673 
674  if ($isSingleline)
675  {
676  // thumb size
677  $thumb_size = new ilNumberInputGUI($this->lng->txt( "thumb_size" ), "thumb_size");
678  $thumb_size->setSuffix($this->lng->txt("thumb_size_unit_pixel"));
679  $thumb_size->setMinValue( 20 );
680  $thumb_size->setDecimals( 0 );
681  $thumb_size->setSize( 6 );
682  $thumb_size->setInfo( $this->lng->txt( 'thumb_size_info' ) );
683  $thumb_size->setValue( $this->object->getThumbSize() );
684  $thumb_size->setRequired( false );
685  $form->addItem( $thumb_size );
686  }
687  return $form;
688  }
689 
699  public function getAfterParticipationSuppressionQuestionPostVars()
700  {
701  return array();
702  }
703 
704  public function writeAnswerSpecificPostData(ilPropertyFormGUI $form)
705  {
706  // Delete all existing answers and create new answers from the form data
707  $this->object->flushAnswers();
708  if ($this->object->isSingleline)
709  {
710  foreach ($_POST['choice']['answer'] as $index => $answertext)
711  {
712  $answertext = ilUtil::secureString($answertext);
713 
714  $picturefile = $_POST['choice']['imagename'][$index];
715  $file_org_name = $_FILES['choice']['name']['image'][$index];
716  $file_temp_name = $_FILES['choice']['tmp_name']['image'][$index];
717 
718  if (strlen( $file_temp_name ))
719  {
720  // check suffix
721  $suffix = strtolower( array_pop( explode( ".", $file_org_name ) ) );
722  if (in_array( $suffix, array( "jpg", "jpeg", "png", "gif" ) ))
723  {
724  // upload image
725  $filename = $this->object->createNewImageFileName( $file_org_name );
726  if ($this->object->setImageFile( $filename, $file_temp_name ) == 0)
727  {
728  $picturefile = $filename;
729  }
730  }
731  }
732 
733  $this->object->addAnswer( $answertext, $_POST['choice']['points'][$index], $index, $picturefile );
734  }
735  }
736  else
737  {
738  foreach ($_POST['choice']['answer'] as $index => $answer)
739  {
740  $answertext = $answer;
741  $this->object->addAnswer( $answertext, $_POST['choice']['points'][$index], $index );
742  }
743  }
744  }
745 
746  public function populateAnswerSpecificFormPart(\ilPropertyFormGUI $form)
747  {
748  $isSingleline = ($this->object->lastChange == 0 && !array_key_exists('types', $_POST)) ? (($this->object->getMultilineAnswerSetting()) ? false : true) : $this->object->isSingleline;
749 
750  // Choices
751  include_once "./Modules/TestQuestionPool/classes/class.ilSingleChoiceWizardInputGUI.php";
752  $choices = new ilSingleChoiceWizardInputGUI($this->lng->txt( "answers" ), "choice");
753  $choices->setRequired( true );
754  $choices->setQuestionObject( $this->object );
755  $choices->setSingleline( $isSingleline );
756  $choices->setAllowMove( false );
757  if ($this->object->getSelfAssessmentEditingMode())
758  {
759  $choices->setSize( 40 );
760  $choices->setMaxLength( 800 );
761  }
762  if ($this->object->getAnswerCount() == 0)
763  $this->object->addAnswer( "", 0, 0 );
764  $choices->setValues( $this->object->getAnswers() );
765  $form->addItem( $choices );
766  }
767 
777  public function getAfterParticipationSuppressionAnswerPostVars()
778  {
779  return array();
780  }
781 
790  public function getAggregatedAnswersView($relevant_answers)
791  {
792  return $this->renderAggregateView(
793  $this->aggregateAnswers( $relevant_answers, $this->object->getAnswers() ) )->get();
794  }
795 
796  public function aggregateAnswers($relevant_answers_chosen, $answers_defined_on_question)
797  {
798  $aggregate = array();
799  foreach ($answers_defined_on_question as $answer)
800  {
801  $aggregated_info_for_answer = array();
802  $aggregated_info_for_answer['answertext'] = $answer->getAnswerText();
803  $aggregated_info_for_answer['count_checked'] = 0;
804 
805  foreach ($relevant_answers_chosen as $relevant_answer)
806  {
807  if ($relevant_answer['value1'] == $answer->getOrder())
808  {
809  $aggregated_info_for_answer['count_checked']++;
810  }
811  }
812  $aggregated_info_for_answer['count_unchecked'] =
813  ceil(count($relevant_answers_chosen) / count($answers_defined_on_question))
814  - $aggregated_info_for_answer['count_checked'];
815 
816  $aggregate[] = $aggregated_info_for_answer;
817  }
818  return $aggregate;
819  }
820 
826  public function renderAggregateView($aggregate)
827  {
828  $tpl = new ilTemplate('tpl.il_as_aggregated_answers_table.html', true, true, "Modules/TestQuestionPool");
829 
830  foreach ($aggregate as $line_data)
831  {
832  $tpl->setCurrentBlock( 'aggregaterow' );
833  $tpl->setVariable( 'OPTION', $line_data['answertext'] );
834  $tpl->setVariable( 'COUNT', $line_data['count_checked'] );
835  $tpl->parseCurrentBlock();
836  }
837  return $tpl;
838  }
839 
840  private function populateInlineFeedback($template, $answer_id, $user_solution)
841  {
842  $feedbackOutputRequired = false;
843 
844  switch($this->object->getSpecificFeedbackSetting())
845  {
846  case 1:
847  $feedbackOutputRequired = true;
848  break;
849 
850  case 2:
851  if(strcmp($user_solution, $answer_id) == 0)
852  {
853  $feedbackOutputRequired = true;
854  }
855  break;
856 
857  case 3:
858  if($this->object->getAnswer($answer_id)->getPoints() > 0)
859  {
860  $feedbackOutputRequired = true;
861  }
862  break;
863  }
864 
865  if($feedbackOutputRequired)
866  {
867  $fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation($this->object->getId(), $answer_id);
868  if(strlen($fb))
869  {
870  $template->setCurrentBlock("feedback");
871  $template->setVariable("FEEDBACK", $this->object->prepareTextareaOutput($fb, true));
872  $template->parseCurrentBlock();
873  }
874  }
875  }
876 }