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assMultipleChoice Class Reference
Modules/TestQuestionPool

Class for multiple choice tests. More...

+ Inheritance diagram for assMultipleChoice:
+ Collaboration diagram for assMultipleChoice:

Public Member Functions

 __construct ($title="", $comment="", $author="", $owner=-1, $question="", $output_type=OUTPUT_ORDER)
 assMultipleChoice constructor
 isComplete ()
 Returns true, if a multiple choice question is complete for use.
 saveToDb ($original_id="")
 Saves a assMultipleChoice object to a database.
 getThumbPrefix ()
 loadFromDb ($question_id)
 Loads a assMultipleChoice object from a database.
 duplicate ($for_test=true, $title="", $author="", $owner="")
 Duplicates an assMultipleChoiceQuestion.
 copyObject ($target_questionpool, $title="")
 Copies an assMultipleChoice object.
 getOutputType ()
 Gets the multiple choice output type which is either OUTPUT_ORDER (=0) or OUTPUT_RANDOM (=1).
 setOutputType ($output_type=OUTPUT_ORDER)
 Sets the output type of the assMultipleChoice object.
 addAnswer ($answertext="", $points=0.0, $points_unchecked=0.0, $order=0, $answerimage="")
 Adds a possible answer for a multiple choice question.
 getAnswerCount ()
 Returns the number of answers.
 getAnswer ($index=0)
 Returns an answer with a given index.
 deleteAnswer ($index=0)
 Deletes an answer with a given index.
 flushAnswers ()
 Deletes all answers.
 getMaximumPoints ()
 Returns the maximum points, a learner can reach answering the question.
 calculateReachedPoints ($active_id, $pass=NULL)
 Returns the points, a learner has reached answering the question The points are calculated from the given answers including checks for all special scoring options in the test container.
 saveWorkingData ($active_id, $pass=NULL)
 Saves the learners input of the question to the database.
 syncFeedbackSingleAnswers ()
 Synchronizes the single answer feedback with an original question.
 syncWithOriginal ()
 getQuestionType ()
 Returns the question type of the question.
 getAdditionalTableName ()
 Returns the name of the additional question data table in the database.
 getAnswerTableName ()
 Returns the name of the answer table in the database.
 setImageFile ($image_filename, $image_tempfilename="")
 Sets the image file and uploads the image to the object's image directory.
 deleteImage ($image_filename)
 Deletes an image file.
 duplicateImages ($question_id)
 copyImages ($question_id, $source_questionpool)
 saveFeedbackSingleAnswer ($answer_index, $feedback)
 Saves feedback for a single selected answer to the database.
 getFeedbackSingleAnswer ($answer_index)
 Returns the feedback for a single selected answer.
 duplicateFeedbackAnswer ($original_id)
 Duplicates the answer specific feedback.
 getRTETextWithMediaObjects ()
 Collects all text in the question which could contain media objects which were created with the Rich Text Editor.
& getAnswers ()
 Returns a reference to the answers array.
 setExportDetailsXLS (&$worksheet, $startrow, $active_id, $pass, &$format_title, &$format_bold)
 Creates an Excel worksheet for the detailed cumulated results of this question.
 getThumbSize ()
 setThumbSize ($a_size)
 toJSON ()
 Returns a JSON representation of the question.
 removeAnswerImage ($index)
 getMultilineAnswerSetting ()
 setMultilineAnswerSetting ($a_setting=0)
- Public Member Functions inherited from assQuestion
 __construct ($title="", $comment="", $author="", $owner=-1, $question="")
 assQuestion constructor
 fromXML (&$item, &$questionpool_id, &$tst_id, &$tst_object, &$question_counter, &$import_mapping)
 Receives parameters from a QTI parser and creates a valid ILIAS question object.
 toXML ($a_include_header=true, $a_include_binary=true, $a_shuffle=false, $test_output=false, $force_image_references=false)
 Returns a QTI xml representation of the question.
 questionTitleExists ($questionpool_id, $title)
 Returns TRUE if the question title exists in the database.
 setTitle ($title="")
 Sets the title string of the assQuestion object.
 setId ($id=-1)
 Sets the id of the assQuestion object.
 setTestId ($id=-1)
 Sets the test id of the assQuestion object.
 setComment ($comment="")
 Sets the comment string of the assQuestion object.
 setShuffle ($shuffle=true)
 Sets the shuffle flag.
 setEstimatedWorkingTime ($hour=0, $min=0, $sec=0)
 Sets the estimated working time of a question.
 keyInArray ($searchkey, $array)
 returns TRUE if the key occurs in an array
 setAuthor ($author="")
 Sets the authors name of the assQuestion object.
 setOwner ($owner="")
 Sets the creator/owner ID of the assQuestion object.
 getTitle ()
 Gets the title string of the assQuestion object.
 getId ()
 Gets the id of the assQuestion object.
 getShuffle ()
 Gets the shuffle flag.
 getTestId ()
 Gets the test id of the assQuestion object.
 getComment ()
 Gets the comment string of the assQuestion object.
 supportsJavascriptOutput ()
 Returns true if the question type supports JavaScript output.
 getEstimatedWorkingTime ()
 Gets the estimated working time of a question.
 getAuthor ()
 Gets the authors name of the assQuestion object.
 getOwner ()
 Gets the creator/owner ID of the assQuestion object.
 getObjId ()
 Get the object id of the container object.
 setObjId ($obj_id=0)
 Set the object id of the container object.
 _getMaximumPoints ($question_id)
 Returns the maximum points, a learner can reach answering the question.
& _getQuestionInfo ($question_id)
 Returns question information from the database.
 getSuggestedSolutionOutput ()
& _getSuggestedSolution ($question_id, $subquestion_index=0)
 Returns a suggested solution for a given subquestion index.
 getSuggestedSolutions ()
 Return the suggested solutions.
 _getReachedPoints ($active_id, $question_id, $pass=NULL)
 Returns the points, a learner has reached answering the question.
 getReachedPoints ($active_id, $pass=NULL)
 Returns the points, a learner has reached answering the question This is the fast way to get the points directly from the database.
 calculateResultsFromSolution ($active_id, $pass=NULL)
 Calculates the question results from a previously saved question solution.
 _updateTestResultCache ($active_id)
 _updateTestPassResults ($active_id, $pass)
 logAction ($logtext="", $active_id="", $question_id="")
 Logs an action into the Test&Assessment log.
 _logAction ($logtext="", $active_id="", $question_id="")
 Logs an action into the Test&Assessment log.
 moveUploadedMediaFile ($file, $name)
 Move an uploaded media file to an public accessible temp dir to present it.
 getSuggestedSolutionPath ()
 Returns the path for a suggested solution.
 getJavaPath ()
 Returns the image path for web accessable images of a question.
 getImagePath ()
 Returns the image path for web accessable images of a question.
 getFlashPath ()
 Returns the image path for web accessable flash files of a question.
 getJavaPathWeb ()
 Returns the web image path for web accessable java applets of a question.
 getSuggestedSolutionPathWeb ()
 Returns the web path for a suggested solution.
 getImagePathWeb ()
 Returns the web image path for web accessable images of a question.
 getFlashPathWeb ()
 Returns the web image path for web accessable flash applications of a question.
& getSolutionValues ($active_id, $pass=NULL)
 Loads solutions of a given user from the database an returns it.
 isInUse ($question_id="")
 Checks whether the question is in use or not.
 isClone ($question_id="")
 Checks whether the question is a clone of another question or not.
 pcArrayShuffle ($array)
 Shuffles the values of a given array.
 getQuestionTypeFromDb ($question_id)
 get question type for question id
 deleteAnswers ($question_id)
 Deletes datasets from answers tables.
 deleteAdditionalTableData ($question_id)
 Deletes datasets from the additional question table in the database.
 delete ($question_id)
 Deletes a question and all materials from the database.
 getTotalAnswers ()
 get total number of answers
 _getTotalAnswers ($a_q_id)
 get number of answers for question id (static) note: do not use $this inside this method
 _getTotalRightAnswers ($a_q_id)
 get number of answers for question id (static) note: do not use $this inside this method
 _getTitle ($a_q_id)
 Returns the title of a question.
 _getQuestionText ($a_q_id)
 Returns question text.
 copyXHTMLMediaObjectsOfQuestion ($a_q_id)
 syncXHTMLMediaObjectsOfQuestion ()
 createPageObject ()
 create page object of question
 copyPageOfQuestion ($a_q_id)
 getPageOfQuestion ()
 _getQuestionType ($question_id)
 Returns the question type of a question with a given id.
 _getQuestionTitle ($question_id)
 Returns the question title of a question with a given id.
 setOriginalId ($original_id)
 getOriginalId ()
 createNewQuestion ()
 Creates a new question without an owner when a new question is created This assures that an ID is given to the question if a file upload or something else occurs.
 saveQuestionDataToDb ($original_id="")
 deleteSuggestedSolutions ()
 Deletes all suggestes solutions in the database.
 getSuggestedSolution ($subquestion_index=0)
 Returns a suggested solution for a given subquestion index.
 getSuggestedSolutionTitle ($subquestion_index=0)
 Returns the title of a suggested solution at a given subquestion_index.
 setSuggestedSolution ($solution_id="", $subquestion_index=0, $is_import=false)
 Sets a suggested solution for the question.
 updateSuggestedSolutions ($original_id="")
 Update the suggested solutions of a question based on the suggested solution array attribute.
 saveSuggestedSolution ($type, $solution_id="", $subquestion_index=0, $value="")
 Saves a suggested solution for the question.
 _resolveInternalLink ($internal_link)
 _resolveIntLinks ($question_id)
 _getInternalLinkHref ($target="")
 _getOriginalId ($question_id)
 Returns the original id of a question.
 createRandomSolution ($test_id, $user_id)
 _questionExists ($question_id)
 Returns true if the question already exists in the database.
& _instanciateQuestion ($question_id)
 Creates an instance of a question with a given question id.
 getPoints ()
 Returns the maximum available points for the question.
 setPoints ($a_points)
 Sets the maximum available points for the question.
 getSolutionMaxPass ($active_id)
 Returns the maximum pass a users question solution.
 _getSolutionMaxPass ($question_id, $active_id)
 Returns the maximum pass a users question solution.
 _isWriteable ($question_id, $user_id)
 Returns true if the question is writeable by a certain user.
 _isUsedInRandomTest ($question_id="")
 Checks whether the question is used in a random test or not.
 calculateReachedPoints ($active_id, $pass=NULL, $points=0)
 Returns the points, a learner has reached answering the question The points are calculated from the given answers including checks for all special scoring options in the test container.
 isHTML ($a_text)
 Checks if a given string contains HTML or not.
 prepareTextareaOutput ($txt_output, $prepare_for_latex_output=FALSE)
 Prepares a string for a text area output in tests.
 QTIMaterialToString ($a_material)
 Reads an QTI material tag an creates a text string.
 addQTIMaterial (&$a_xml_writer, $a_material, $close_material_tag=TRUE, $add_mobs=TRUE)
 Creates a QTI material tag from a plain text or xhtml text.
 createNewImageFileName ($image_filename)
 _setReachedPoints ($active_id, $question_id, $points, $maxpoints, $pass=NULL, $manualscoring=FALSE)
 Sets the points, a learner has reached answering the question Additionally objective results are updated.
 getQuestion ()
 Gets the question string of the question object.
 setQuestion ($question="")
 Sets the question string of the question object.
 getQuestionTypeID ()
 Returns the question type of the question.
 saveFeedbackGeneric ($correctness, $feedback)
 Saves generic feedback to the database.
 getFeedbackGeneric ($correctness)
 Returns the generic feedback for a given question state.
 duplicateFeedbackGeneric ($original_id)
 Duplicates the generic feedback of a question.
 syncFeedbackGeneric ()
 cleanupMediaObjectUsage ()
 synchronises appearances of media objects in the question with media object usage table
& getInstances ()
 Gets all instances of the question.
 _needsManualScoring ($question_id)
 getActiveUserData ($active_id)
 Returns the user id and the test id for a given active id.
& _instanciateQuestionGUI ($question_id)
 Creates an instance of a question gui with a given question id.
 __get ($value)
 Object getter.
 __set ($key, $value)
 Object setter.
 getNrOfTries ()
 setNrOfTries ($a_nr_of_tries)

Data Fields

 $answers
 $output_type

Protected Member Functions

 rebuildThumbnails ()
 generateThumbForFile ($path, $file)
 syncImages ()
 Sync images of a MC question on synchronisation with the original question.
- Protected Member Functions inherited from assQuestion
 deletePageOfQuestion ($question_id)
 Deletes the page object of a question with a given ID.
 onDuplicate ($source_question_id)
 Will be called when a question is duplicated (inside a question pool or for insertion in a test)
 onCopy ($source_questionpool_id, $source_question_id)
 Will be called when a question is copied (into another question pool)
 duplicateSuggestedSolutionFiles ($question_id)
 Duplicates the files of a suggested solution if the question is duplicated.
 syncSuggestedSolutionFiles ($original_id)
 Syncs the files of a suggested solution if the question is synced.
 copySuggestedSolutionFiles ($source_questionpool_id, $source_question_id)

Protected Attributes

 $thumb_size
- Protected Attributes inherited from assQuestion
 $id
 $title
 $comment
 $owner
 $author
 $question
 $points
 $est_working_time
 $shuffle
 $test_id
 $obj_id
 $ilias
 $tpl
 $lng
 $outputType
 $suggested_solutions
 $original_id
 $page

Additional Inherited Members

- Static Public Member Functions inherited from assQuestion
static _getSuggestedSolutionCount ($question_id)
 Returns the number of suggested solutions associated with a question.
static _getSuggestedSolutionOutput ($question_id)
 Returns the output of the suggested solution.
static _isWorkedThrough ($active_id, $question_id, $pass=NULL)
 Returns true if the question was worked through in the given pass Worked through means that the user entered at least one value.
static _areAnswered ($a_user_id, $a_question_ids)
 Checks if an array of question ids is answered by an user or not.
static _includeClass ($question_type, $gui=0)
 Include the php class file for a given question type.
static _getQuestionTypeName ($type_tag)
 Return the translation for a given question type tag.

Detailed Description

Class for multiple choice tests.

assMultipleChoice is a class for multiple choice questions

Author
Helmut Schottmüller helmu.nosp@m.t.sc.nosp@m.hottm.nosp@m.uell.nosp@m.er@ma.nosp@m.c.co.nosp@m.m
Version
Id:
class.assMultipleChoice.php 26654 2010-11-21 14:11:48Z hschottm

Definition at line 35 of file class.assMultipleChoice.php.

Constructor & Destructor Documentation

assMultipleChoice::__construct (   $title = "",
  $comment = "",
  $author = "",
  $owner = -1,
  $question = "",
  $output_type = OUTPUT_ORDER 
)

assMultipleChoice constructor

The constructor takes possible arguments an creates an instance of the assMultipleChoice object.

Parameters
string$titleA title string to describe the question
string$commentA comment string to describe the question
string$authorA string containing the name of the questions author
integer$ownerA numerical ID to identify the owner/creator
string$questionThe question string of the multiple choice question
integer$output_typeThe output order of the multiple choice answers public
See Also
assQuestion:assQuestion()

Definition at line 77 of file class.assMultipleChoice.php.

References assQuestion\$author, assQuestion\$comment, $output_type, assQuestion\$owner, assQuestion\$question, and assQuestion\$title.

{
parent::__construct($title, $comment, $author, $owner, $question);
$this->output_type = $output_type;
$this->thumb_size = 150;
$this->answers = array();
$this->shuffle = 1;
}

Member Function Documentation

assMultipleChoice::addAnswer (   $answertext = "",
  $points = 0.0,
  $points_unchecked = 0.0,
  $order = 0,
  $answerimage = "" 
)

Adds a possible answer for a multiple choice question.

A ASS_AnswerBinaryStateImage object will be created and assigned to the array $this->answers.

Parameters
string$answertextThe answer text
double$pointsThe points for selecting the answer (even negative points can be used)
boolean$stateDefines the answer as correct (TRUE) or incorrect (FALSE)
integer$orderA possible display order of the answer
double$pointsThe points for not selecting the answer (even negative points can be used) public
See Also
$answers
ASS_AnswerBinaryStateImage

Definition at line 429 of file class.assMultipleChoice.php.

References $changed, and assQuestion\$points.

{
include_once "./Modules/TestQuestionPool/classes/class.assAnswerMultipleResponseImage.php";
if (array_key_exists($order, $this->answers))
{
// insert answer
$answer = new ASS_AnswerMultipleResponseImage($answertext, $points, $order, $points_unchecked, $answerimage);
$newchoices = array();
for ($i = 0; $i < $order; $i++)
{
array_push($newchoices, $this->answers[$i]);
}
array_push($newchoices, $answer);
for ($i = $order; $i < count($this->answers); $i++)
{
$changed = $this->answers[$i];
$changed->setOrder($i+1);
array_push($newchoices, $changed);
}
$this->answers = $newchoices;
}
else
{
// add answer
$answer = new ASS_AnswerMultipleResponseImage($answertext, $points, count($this->answers), $points_unchecked, $answerimage);
array_push($this->answers, $answer);
}
}
assMultipleChoice::calculateReachedPoints (   $active_id,
  $pass = NULL 
)

Returns the points, a learner has reached answering the question The points are calculated from the given answers including checks for all special scoring options in the test container.

Parameters
integer$user_idThe database ID of the learner
integer$test_idThe database Id of the test containing the question public

Definition at line 564 of file class.assMultipleChoice.php.

References $data, $ilDB, $pass, assQuestion\$points, $result, ilObjTest\_getMCScoring(), assQuestion\getId(), and assQuestion\getSolutionMaxPass().

{
global $ilDB;
$found_values = array();
if (is_null($pass))
{
$pass = $this->getSolutionMaxPass($active_id);
}
$result = $ilDB->queryF("SELECT * FROM tst_solutions WHERE active_fi = %s AND question_fi = %s AND pass = %s",
array('integer','integer','integer'),
array($active_id, $this->getId(), $pass)
);
while ($data = $ilDB->fetchAssoc($result))
{
if (strcmp($data["value1"], "") != 0)
{
array_push($found_values, $data["value1"]);
}
}
$points = 0;
foreach ($this->answers as $key => $answer)
{
if (in_array($key, $found_values))
{
$points += $answer->getPoints();
}
else
{
$points += $answer->getPointsUnchecked();
}
}
include_once "./Modules/Test/classes/class.ilObjTest.php";
$mc_scoring = ilObjTest::_getMCScoring($active_id);
if (($mc_scoring == 0) && (count($found_values) == 0))
{
$points = 0;
}
$points = parent::calculateReachedPoints($active_id, $pass = NULL, $points);
return $points;
}

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assMultipleChoice::copyImages (   $question_id,
  $source_questionpool 
)

Definition at line 846 of file class.assMultipleChoice.php.

References $filename, $ilLog, assQuestion\getImagePath(), getThumbPrefix(), and ilUtil\makeDirParents().

{
global $ilLog;
$imagepath = $this->getImagePath();
$imagepath_original = str_replace("/$this->id/images", "/$question_id/images", $imagepath);
$imagepath_original = str_replace("/$this->obj_id/", "/$source_questionpool/", $imagepath_original);
foreach ($this->answers as $answer)
{
$filename = $answer->getImage();
if (strlen($filename))
{
if (!file_exists($imagepath))
{
ilUtil::makeDirParents($imagepath);
}
if (!@copy($imagepath_original . $filename, $imagepath . $filename))
{
$ilLog->write("image could not be duplicated!!!!", $ilLog->ERROR);
$ilLog->write("object: " . print_r($this, TRUE), $ilLog->ERROR);
}
if (@file_exists($imagepath_original. $this->getThumbPrefix(). $filename))
{
if (!@copy($imagepath_original . $this->getThumbPrefix() . $filename, $imagepath . $this->getThumbPrefix() . $filename))
{
$ilLog->write("image thumbnail could not be duplicated!!!!", $ilLog->ERROR);
$ilLog->write("object: " . print_r($this, TRUE), $ilLog->ERROR);
}
}
}
}
}

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assMultipleChoice::copyObject (   $target_questionpool,
  $title = "" 
)

Copies an assMultipleChoice object.

public

Definition at line 355 of file class.assMultipleChoice.php.

References assQuestion\$original_id, assQuestion\$title, assQuestion\_getOriginalId(), assQuestion\getId(), and assQuestion\getObjId().

{
if ($this->id <= 0)
{
// The question has not been saved. It cannot be duplicated
return;
}
// duplicate the question in database
$clone = $this;
include_once ("./Modules/TestQuestionPool/classes/class.assQuestion.php");
$original_id = assQuestion::_getOriginalId($this->id);
$clone->id = -1;
$source_questionpool = $this->getObjId();
$clone->setObjId($target_questionpool);
if ($title)
{
$clone->setTitle($title);
}
$clone->saveToDb();
// copy question page content
$clone->copyPageOfQuestion($original_id);
// copy XHTML media objects
$clone->copyXHTMLMediaObjectsOfQuestion($original_id);
// duplicate the image
$clone->copyImages($original_id, $source_questionpool);
// duplicate the generic feedback
$clone->duplicateFeedbackGeneric($original_id);
// duplicate the answer specific feedback
$clone->duplicateFeedbackAnswer($original_id);
$clone->onDuplicate($source_questionpool, $this->getId());
$clone->onCopy($this->getObjId(), $this->getId());
return $clone->id;
}

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assMultipleChoice::deleteAnswer (   $index = 0)

Deletes an answer with a given index.

The index of the first answer is 0, the index of the second answer is 1 and so on.

Parameters
integer$indexA nonnegative index of the n-th answer public
See Also
$answers

Definition at line 502 of file class.assMultipleChoice.php.

References deleteImage().

{
if ($index < 0) return;
if (count($this->answers) < 1) return;
if ($index >= count($this->answers)) return;
$answer = $this->answers[$index];
if (strlen($answer->getImage())) $this->deleteImage($answer->getImage());
unset($this->answers[$index]);
$this->answers = array_values($this->answers);
for ($i = 0; $i < count($this->answers); $i++)
{
if ($this->answers[$i]->getOrder() > $index)
{
$this->answers[$i]->setOrder($i);
}
}
}

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assMultipleChoice::deleteImage (   $image_filename)

Deletes an image file.

Parameters
string$image_filenameName of the image file to delete private

Definition at line 807 of file class.assMultipleChoice.php.

References assQuestion\getImagePath(), and getThumbPrefix().

Referenced by deleteAnswer(), and removeAnswerImage().

{
$imagepath = $this->getImagePath();
@unlink($imagepath . $image_filename);
$thumbpath = $imagepath . $this->getThumbPrefix() . $image_filename;
@unlink($thumbpath);
}

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assMultipleChoice::duplicate (   $for_test = true,
  $title = "",
  $author = "",
  $owner = "" 
)

Duplicates an assMultipleChoiceQuestion.

public

Definition at line 298 of file class.assMultipleChoice.php.

References assQuestion\$author, assQuestion\$original_id, assQuestion\$owner, assQuestion\$title, assQuestion\_getOriginalId(), and assQuestion\getId().

{
if ($this->id <= 0)
{
// The question has not been saved. It cannot be duplicated
return;
}
// duplicate the question in database
$this_id = $this->getId();
$clone = $this;
include_once ("./Modules/TestQuestionPool/classes/class.assQuestion.php");
$original_id = assQuestion::_getOriginalId($this->id);
$clone->id = -1;
if ($title)
{
$clone->setTitle($title);
}
if ($author)
{
$clone->setAuthor($author);
}
if ($owner)
{
$clone->setOwner($owner);
}
if ($for_test)
{
$clone->saveToDb($original_id);
}
else
{
$clone->saveToDb();
}
// copy question page content
$clone->copyPageOfQuestion($this_id);
// copy XHTML media objects
$clone->copyXHTMLMediaObjectsOfQuestion($this_id);
// duplicate the images
$clone->duplicateImages($this_id);
// duplicate the generic feedback
$clone->duplicateFeedbackGeneric($this_id);
// duplicate the answer specific feedback
$clone->duplicateFeedbackAnswer($this_id);
$clone->onDuplicate($this_id);
return $clone->id;
}

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assMultipleChoice::duplicateFeedbackAnswer (   $original_id)

Duplicates the answer specific feedback.

Parameters
integer$original_idThe database ID of the original question public

Definition at line 984 of file class.assMultipleChoice.php.

References $ilDB, assQuestion\$original_id, $result, $row, and assQuestion\getId().

{
global $ilDB;
$feedback = "";
$result = $ilDB->queryF("SELECT * FROM qpl_fb_mc WHERE question_fi = %s",
array('integer'),
array($original_id)
);
if ($result->numRows())
{
while ($row = $ilDB->fetchAssoc($result))
{
$next_id = $ilDB->nextId('qpl_fb_mc');
$affectedRows = $ilDB->manipulateF("INSERT INTO qpl_fb_mc (feedback_id, question_fi, answer, feedback, tstamp) VALUES (%s, %s, %s, %s, %s)",
array('integer','integer','integer','text','integer'),
array(
$next_id,
$this->getId(),
$row["answer"],
$row["feedback"],
time()
)
);
}
}
}

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assMultipleChoice::duplicateImages (   $question_id)

Definition at line 815 of file class.assMultipleChoice.php.

References $filename, $ilLog, assQuestion\getImagePath(), getThumbPrefix(), and ilUtil\makeDirParents().

{
global $ilLog;
$imagepath = $this->getImagePath();
$imagepath_original = str_replace("/$this->id/images", "/$question_id/images", $imagepath);
foreach ($this->answers as $answer)
{
$filename = $answer->getImage();
if (strlen($filename))
{
if (!file_exists($imagepath))
{
ilUtil::makeDirParents($imagepath);
}
if (!@copy($imagepath_original . $filename, $imagepath . $filename))
{
$ilLog->write("image could not be duplicated!!!!", $ilLog->ERROR);
$ilLog->write("object: " . print_r($this, TRUE), $ilLog->ERROR);
}
if (@file_exists($imagepath_original. $this->getThumbPrefix(). $filename))
{
if (!@copy($imagepath_original . $this->getThumbPrefix() . $filename, $imagepath . $this->getThumbPrefix() . $filename))
{
$ilLog->write("image thumbnail could not be duplicated!!!!", $ilLog->ERROR);
$ilLog->write("object: " . print_r($this, TRUE), $ilLog->ERROR);
}
}
}
}
}

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assMultipleChoice::flushAnswers ( )

Deletes all answers.

public

See Also
$answers

Definition at line 526 of file class.assMultipleChoice.php.

{
$this->answers = array();
}
assMultipleChoice::generateThumbForFile (   $path,
  $file 
)
protected

Definition at line 209 of file class.assMultipleChoice.php.

References $file, $filename, $path, ilUtil\convertImage(), getThumbPrefix(), and getThumbSize().

Referenced by rebuildThumbnails(), and setImageFile().

{
$filename = $path . $file;
if (@file_exists($filename))
{
$thumbpath = $path . $this->getThumbPrefix() . $file;
$path_info = @pathinfo($filename);
$ext = "";
switch (strtoupper($path_info['extension']))
{
case 'PNG':
$ext = 'PNG';
break;
case 'GIF':
$ext = 'GIF';
break;
default:
$ext = 'JPEG';
break;
}
ilUtil::convertImage($filename, $thumbpath, $ext, $this->getThumbSize());
}
}

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assMultipleChoice::getAdditionalTableName ( )

Returns the name of the additional question data table in the database.

Returns
string The additional table name public

Reimplemented from assQuestion.

Definition at line 739 of file class.assMultipleChoice.php.

Referenced by loadFromDb(), and saveToDb().

{
return "qpl_qst_mc";
}

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assMultipleChoice::getAnswer (   $index = 0)

Returns an answer with a given index.

The index of the first answer is 0, the index of the second answer is 1 and so on.

Parameters
integer$indexA nonnegative index of the n-th answer
Returns
object ASS_AnswerBinaryStateImage-Object containing the answer public
See Also
$answers

Definition at line 485 of file class.assMultipleChoice.php.

{
if ($index < 0) return NULL;
if (count($this->answers) < 1) return NULL;
if ($index >= count($this->answers)) return NULL;
return $this->answers[$index];
}
assMultipleChoice::getAnswerCount ( )

Returns the number of answers.

Returns
integer The number of answers of the multiple choice question public
See Also
$answers

Definition at line 471 of file class.assMultipleChoice.php.

{
return count($this->answers);
}
& assMultipleChoice::getAnswers ( )

Returns a reference to the answers array.

Definition at line 1031 of file class.assMultipleChoice.php.

References $answers.

Referenced by rebuildThumbnails(), setExportDetailsXLS(), and toJSON().

{
return $this->answers;
}

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assMultipleChoice::getAnswerTableName ( )

Returns the name of the answer table in the database.

Returns
string The answer table name public

Reimplemented from assQuestion.

Definition at line 750 of file class.assMultipleChoice.php.

{
return "qpl_a_mc";
}
assMultipleChoice::getFeedbackSingleAnswer (   $answer_index)

Returns the feedback for a single selected answer.

Parameters
integer$answer_indexThe index of the answer
Returns
string Feedback text public

Definition at line 960 of file class.assMultipleChoice.php.

References $ilDB, $result, $row, ilRTE\_replaceMediaObjectImageSrc(), and assQuestion\getId().

Referenced by getRTETextWithMediaObjects(), and toJSON().

{
global $ilDB;
$feedback = "";
$result = $ilDB->queryF("SELECT * FROM qpl_fb_mc WHERE question_fi = %s AND answer = %s",
array('integer','integer'),
array($this->getId(), $answer_index)
);
if ($result->numRows())
{
$row = $ilDB->fetchAssoc($result);
include_once("./Services/RTE/classes/class.ilRTE.php");
$feedback = ilRTE::_replaceMediaObjectImageSrc($row["feedback"], 1);
}
return $feedback;
}

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assMultipleChoice::getMaximumPoints ( )

Returns the maximum points, a learner can reach answering the question.

public

See Also
$points

Reimplemented from assQuestion.

Definition at line 537 of file class.assMultipleChoice.php.

References assQuestion\$points.

Referenced by isComplete().

{
$points = 0;
$allpoints = 0;
foreach ($this->answers as $key => $value)
{
if ($value->getPoints() > $value->getPointsUnchecked())
{
$allpoints += $value->getPoints();
}
else
{
$allpoints += $value->getPointsUnchecked();
}
}
return $allpoints;
}

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assMultipleChoice::getMultilineAnswerSetting ( )

Definition at line 1134 of file class.assMultipleChoice.php.

{
global $ilUser;
$multilineAnswerSetting = $ilUser->getPref("tst_multiline_answers");
if ($multilineAnswerSetting != 1)
{
$multilineAnswerSetting = 0;
}
return $multilineAnswerSetting;
}
assMultipleChoice::getOutputType ( )

Gets the multiple choice output type which is either OUTPUT_ORDER (=0) or OUTPUT_RANDOM (=1).

Returns
integer The output type of the assMultipleChoice object public
See Also
$output_type

Reimplemented from assQuestion.

Definition at line 399 of file class.assMultipleChoice.php.

References $output_type.

{
return $this->output_type;
}
assMultipleChoice::getQuestionType ( )

Returns the question type of the question.

Returns
integer The question type of the question public

Reimplemented from assQuestion.

Definition at line 728 of file class.assMultipleChoice.php.

Referenced by toJSON().

{
return "assMultipleChoice";
}

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assMultipleChoice::getRTETextWithMediaObjects ( )

Collects all text in the question which could contain media objects which were created with the Rich Text Editor.

Reimplemented from assQuestion.

Definition at line 1016 of file class.assMultipleChoice.php.

References getFeedbackSingleAnswer().

{
$text = parent::getRTETextWithMediaObjects();
foreach ($this->answers as $index => $answer)
{
$text .= $this->getFeedbackSingleAnswer($index);
$answer_obj = $this->answers[$index];
$text .= $answer_obj->getAnswertext();
}
return $text;
}

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assMultipleChoice::getThumbPrefix ( )

Definition at line 204 of file class.assMultipleChoice.php.

Referenced by copyImages(), deleteImage(), duplicateImages(), generateThumbForFile(), and syncImages().

{
return "thumb.";
}

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assMultipleChoice::getThumbSize ( )

Definition at line 1079 of file class.assMultipleChoice.php.

References $thumb_size.

Referenced by generateThumbForFile(), rebuildThumbnails(), saveToDb(), and setImageFile().

{
return $this->thumb_size;
}

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assMultipleChoice::isComplete ( )

Returns true, if a multiple choice question is complete for use.

Returns
boolean True, if the multiple choice question is complete for use, otherwise false public

Reimplemented from assQuestion.

Definition at line 99 of file class.assMultipleChoice.php.

References getMaximumPoints().

{
if (($this->title) and ($this->author) and ($this->question) and (count($this->answers)) and ($this->getMaximumPoints() > 0))
{
return true;
}
else
{
return false;
}
}

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assMultipleChoice::loadFromDb (   $question_id)

Loads a assMultipleChoice object from a database.

Parameters
integer$question_idA unique key which defines the multiple choice test in the database public

Reimplemented from assQuestion.

Definition at line 239 of file class.assMultipleChoice.php.

References $data, $ilDB, $result, assQuestion\$shuffle, ilRTE\_replaceMediaObjectImageSrc(), getAdditionalTableName(), assQuestion\getImagePath(), assQuestion\setAuthor(), assQuestion\setComment(), assQuestion\setEstimatedWorkingTime(), assQuestion\setId(), assQuestion\setNrOfTries(), assQuestion\setObjId(), assQuestion\setOriginalId(), assQuestion\setOwner(), assQuestion\setPoints(), assQuestion\setQuestion(), assQuestion\setShuffle(), setThumbSize(), and assQuestion\setTitle().

{
global $ilDB;
$hasimages = 0;
$result = $ilDB->queryF("SELECT qpl_questions.*, " . $this->getAdditionalTableName() . ".* FROM qpl_questions LEFT JOIN " . $this->getAdditionalTableName() . " ON " . $this->getAdditionalTableName() . ".question_fi = qpl_questions.question_id WHERE qpl_questions.question_id = %s",
array("integer"),
array($question_id)
);
if ($result->numRows() == 1)
{
$data = $ilDB->fetchAssoc($result);
$this->setId($question_id);
$this->setObjId($data["obj_fi"]);
$this->setTitle($data["title"]);
$this->setNrOfTries($data['nr_of_tries']);
$this->setComment($data["description"]);
$this->setOriginalId($data["original_id"]);
$this->setAuthor($data["author"]);
$this->setPoints($data["points"]);
$this->setOwner($data["owner"]);
include_once("./Services/RTE/classes/class.ilRTE.php");
$this->setQuestion(ilRTE::_replaceMediaObjectImageSrc($data["question_text"], 1));
$shuffle = (is_null($data['shuffle'])) ? true : $data['shuffle'];
$this->setShuffle($shuffle);
$this->setEstimatedWorkingTime(substr($data["working_time"], 0, 2), substr($data["working_time"], 3, 2), substr($data["working_time"], 6, 2));
$this->setThumbSize($data['thumb_size']);
$this->isSingleline = ($data['allow_images']) ? false : true;
$this->lastChange = $data['tstamp'];
}
$result = $ilDB->queryF("SELECT * FROM qpl_a_mc WHERE question_fi = %s ORDER BY aorder ASC",
array('integer'),
array($question_id)
);
include_once "./Modules/TestQuestionPool/classes/class.assAnswerMultipleResponseImage.php";
if ($result->numRows() > 0)
{
while ($data = $ilDB->fetchAssoc($result))
{
$imagefilename = $this->getImagePath() . $data["imagefile"];
if (!@file_exists($imagefilename))
{
$data["imagefile"] = "";
}
include_once("./Services/RTE/classes/class.ilRTE.php");
$data["answertext"] = ilRTE::_replaceMediaObjectImageSrc($data["answertext"], 1);
array_push($this->answers, new ASS_AnswerMultipleResponseImage($data["answertext"], $data["points"], $data["aorder"], $data["points_unchecked"], $data["imagefile"]));
}
}
parent::loadFromDb($question_id);
}

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assMultipleChoice::rebuildThumbnails ( )
protected

Definition at line 190 of file class.assMultipleChoice.php.

References generateThumbForFile(), getAnswers(), assQuestion\getImagePath(), and getThumbSize().

Referenced by saveToDb().

{
if ($this->isSingleline && ($this->getThumbSize()))
{
foreach ($this->getAnswers() as $answer)
{
if (strlen($answer->getImage()))
{
$this->generateThumbForFile($this->getImagePath(), $answer->getImage());
}
}
}
}

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assMultipleChoice::removeAnswerImage (   $index)

Definition at line 1124 of file class.assMultipleChoice.php.

References deleteImage().

{
$answer = $this->answers[$index];
if (is_object($answer))
{
$this->deleteImage($answer->getImage());
$answer->setImage('');
}
}

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assMultipleChoice::saveFeedbackSingleAnswer (   $answer_index,
  $feedback 
)

Saves feedback for a single selected answer to the database.

Parameters
integer$answer_indexThe index of the answer
string$feedbackFeedback text public

Definition at line 928 of file class.assMultipleChoice.php.

References $ilDB, ilRTE\_replaceMediaObjectImageSrc(), and assQuestion\getId().

{
global $ilDB;
$affectedRows = $ilDB->manipulateF("DELETE FROM qpl_fb_mc WHERE question_fi = %s AND answer = %s",
array('integer','integer'),
array($this->getId(), $answer_index)
);
if (strlen($feedback))
{
include_once("./Services/RTE/classes/class.ilRTE.php");
$next_id = $ilDB->nextId('qpl_fb_mc');
$affectedRows = $ilDB->manipulateF("INSERT INTO qpl_fb_mc (feedback_id, question_fi, answer, feedback, tstamp) VALUES (%s, %s, %s, %s, %s)",
array('integer','integer','integer','text','integer'),
array(
$next_id,
$this->getId(),
$answer_index,
ilRTE::_replaceMediaObjectImageSrc($feedback, 0),
time()
)
);
}
}

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assMultipleChoice::saveToDb (   $original_id = "")

Saves a assMultipleChoice object to a database.

Parameters
object$dbA pear DB object public

Reimplemented from assQuestion.

Definition at line 117 of file class.assMultipleChoice.php.

References $data, $ilDB, assQuestion\$original_id, $result, ilRTE\_replaceMediaObjectImageSrc(), ilUtil\delDir(), getAdditionalTableName(), assQuestion\getId(), assQuestion\getImagePath(), assQuestion\getShuffle(), getThumbSize(), rebuildThumbnails(), and assQuestion\saveQuestionDataToDb().

{
global $ilDB;
$this->saveQuestionDataToDb($original_id);
$oldthumbsize = 0;
if ($this->isSingleline && ($this->getThumbSize()))
{
// get old thumbnail size
$result = $ilDB->queryF("SELECT thumb_size FROM " . $this->getAdditionalTableName() . " WHERE question_fi = %s",
array("integer"),
array($this->getId())
);
if ($result->numRows() == 1)
{
$data = $ilDB->fetchAssoc($result);
$oldthumbsize = $data['thumb_size'];
}
}
if (!$this->isSingleline)
{
ilUtil::delDir($this->getImagePath());
}
// save additional data
$affectedRows = $ilDB->manipulateF("DELETE FROM " . $this->getAdditionalTableName() . " WHERE question_fi = %s",
array("integer"),
array($this->getId())
);
$affectedRows = $ilDB->manipulateF("INSERT INTO " . $this->getAdditionalTableName() . " (question_fi, shuffle, allow_images, thumb_size) VALUES (%s, %s, %s, %s)",
array("integer", "text", "text", "integer"),
array(
$this->getId(),
$this->getShuffle(),
($this->isSingleline) ? "0" : "1",
(strlen($this->getThumbSize()) == 0) ? null : $this->getThumbSize()
)
);
$affectedRows = $ilDB->manipulateF("DELETE FROM qpl_a_mc WHERE question_fi = %s",
array('integer'),
array($this->getId())
);
foreach ($this->answers as $key => $value)
{
$answer_obj = $this->answers[$key];
$next_id = $ilDB->nextId('qpl_a_mc');
$affectedRows = $ilDB->manipulateF("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)",
array('integer','integer','text','float','float','integer','text', 'integer'),
array(
$next_id,
$this->getId(),
ilRTE::_replaceMediaObjectImageSrc($answer_obj->getAnswertext(), 0),
$answer_obj->getPoints(),
$answer_obj->getPointsUnchecked(),
$answer_obj->getOrder(),
$answer_obj->getImage(),
time()
)
);
}
$this->rebuildThumbnails();
parent::saveToDb($original_id);
}

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assMultipleChoice::saveWorkingData (   $active_id,
  $pass = NULL 
)

Saves the learners input of the question to the database. 

  @param integer $test_id The database id of the test containing this question
Returns
boolean Indicates the save status (true if saved successful, false otherwise) public
See Also
$answers

Reimplemented from assQuestion.

Definition at line 614 of file class.assMultipleChoice.php.

References $_POST, $ilDB, $pass, ilObjAssessmentFolder\_enabledAssessmentLogging(), ilObjAssessmentFolder\_getLogLanguage(), ilObjTest\_getPass(), assQuestion\getId(), and assQuestion\logAction().

{
global $ilDB;
global $ilUser;
if (is_null($pass))
{
include_once "./Modules/Test/classes/class.ilObjTest.php";
$pass = ilObjTest::_getPass($active_id);
}
$entered_values = 0;
$affectedRows = $ilDB->manipulateF("DELETE FROM tst_solutions WHERE active_fi = %s AND question_fi = %s AND pass = %s",
array('integer','integer','integer'),
array($active_id, $this->getId(), $pass)
);
foreach ($_POST as $key => $value)
{
if (preg_match("/^multiple_choice_result_(\d+)/", $key, $matches))
{
if (strlen($value))
{
$next_id = $ilDB->nextId('tst_solutions');
$affectedRows = $ilDB->insert("tst_solutions", array(
"solution_id" => array("integer", $next_id),
"active_fi" => array("integer", $active_id),
"question_fi" => array("integer", $this->getId()),
"value1" => array("clob", $value),
"value2" => array("clob", null),
"pass" => array("integer", $pass),
"tstamp" => array("integer", time())
));
$entered_values++;
}
}
}
if ($entered_values)
{
include_once ("./Modules/Test/classes/class.ilObjAssessmentFolder.php");
if (ilObjAssessmentFolder::_enabledAssessmentLogging())
{
$this->logAction($this->lng->txtlng("assessment", "log_user_entered_values", ilObjAssessmentFolder::_getLogLanguage()), $active_id, $this->getId());
}
}
else
{
include_once ("./Modules/Test/classes/class.ilObjAssessmentFolder.php");
if (ilObjAssessmentFolder::_enabledAssessmentLogging())
{
$this->logAction($this->lng->txtlng("assessment", "log_user_not_entered_values", ilObjAssessmentFolder::_getLogLanguage()), $active_id, $this->getId());
}
}
parent::saveWorkingData($active_id, $pass);
return true;
}

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assMultipleChoice::setExportDetailsXLS ( &  $worksheet,
  $startrow,
  $active_id,
  $pass,
&  $format_title,
&  $format_bold 
)

Creates an Excel worksheet for the detailed cumulated results of this question.

Parameters
object$worksheetReference to the parent excel worksheet
object$startrowStartrow of the output in the excel worksheet
object$active_idActive id of the participant
object$passTest pass
object$format_titleExcel title format
object$format_boldExcel bold format
array$eval_dataCumulated evaluation data public

Reimplemented from assQuestion.

Definition at line 1048 of file class.assMultipleChoice.php.

References assQuestion\$id, $pass, ilExcelUtils\_convert_text(), getAnswers(), assQuestion\getSolutionValues(), and assQuestion\getTitle().

{
include_once ("./Services/Excel/classes/class.ilExcelUtils.php");
$solution = $this->getSolutionValues($active_id, $pass);
$worksheet->writeString($startrow, 0, ilExcelUtils::_convert_text($this->lng->txt($this->getQuestionType())), $format_title);
$worksheet->writeString($startrow, 1, ilExcelUtils::_convert_text($this->getTitle()), $format_title);
$i = 1;
foreach ($this->getAnswers() as $id => $answer)
{
$worksheet->writeString($startrow + $i, 0, ilExcelUtils::_convert_text($answer->getAnswertext()), $format_bold);
$checked = FALSE;
foreach ($solution as $solutionvalue)
{
if ($id == $solutionvalue["value1"])
{
$checked = TRUE;
}
}
if ($checked)
{
$worksheet->write($startrow + $i, 1, 1);
}
else
{
$worksheet->write($startrow + $i, 1, 0);
}
$i++;
}
return $startrow + $i + 1;
}

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assMultipleChoice::setImageFile (   $image_filename,
  $image_tempfilename = "" 
)

Sets the image file and uploads the image to the object's image directory.

Parameters
string$image_filenameName of the original image file
string$image_tempfilenameName of the temporary uploaded image file
Returns
integer An errorcode if the image upload fails, 0 otherwise public

Definition at line 763 of file class.assMultipleChoice.php.

References $result, generateThumbForFile(), assQuestion\getImagePath(), ilObjMediaObject\getMimeType(), getThumbSize(), ilUtil\makeDirParents(), and ilUtil\moveUploadedFile().

{
$result = 0;
if (!empty($image_tempfilename))
{
$image_filename = str_replace(" ", "_", $image_filename);
$imagepath = $this->getImagePath();
if (!file_exists($imagepath))
{
ilUtil::makeDirParents($imagepath);
}
//if (!move_uploaded_file($image_tempfilename, $imagepath . $image_filename))
if (!ilUtil::moveUploadedFile($image_tempfilename, $image_filename, $imagepath.$image_filename))
{
$result = 2;
}
else
{
include_once "./Services/MediaObjects/classes/class.ilObjMediaObject.php";
$mimetype = ilObjMediaObject::getMimeType($imagepath . $image_filename);
if (!preg_match("/^image/", $mimetype))
{
unlink($imagepath . $image_filename);
$result = 1;
}
else
{
// create thumbnail file
if ($this->isSingleline && ($this->getThumbSize()))
{
$this->generateThumbForFile($imagepath, $image_filename);
}
}
}
}
return $result;
}

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assMultipleChoice::setMultilineAnswerSetting (   $a_setting = 0)

Definition at line 1146 of file class.assMultipleChoice.php.

{
global $ilUser;
$ilUser->writePref("tst_multiline_answers", $a_setting);
}
assMultipleChoice::setOutputType (   $output_type = OUTPUT_ORDER)

Sets the output type of the assMultipleChoice object.

Parameters
integer$output_typeA nonnegative integer value specifying the output type. It is OUTPUT_ORDER (=0) or OUTPUT_RANDOM (=1). public
See Also
$response

Reimplemented from assQuestion.

Definition at line 411 of file class.assMultipleChoice.php.

References $output_type.

{
$this->output_type = $output_type;
}
assMultipleChoice::setThumbSize (   $a_size)

Definition at line 1084 of file class.assMultipleChoice.php.

Referenced by loadFromDb().

{
$this->thumb_size = $a_size;
}

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assMultipleChoice::syncFeedbackSingleAnswers ( )

Synchronizes the single answer feedback with an original question.

public

Definition at line 675 of file class.assMultipleChoice.php.

References $ilDB, $result, $row, and assQuestion\getId().

Referenced by syncWithOriginal().

{
global $ilDB;
$feedback = "";
// delete generic feedback of the original
$affectedRows = $ilDB->manipulateF("DELETE FROM qpl_fb_mc WHERE question_fi = %s",
array('integer'),
array($this->original_id)
);
// get generic feedback of the actual question
$result = $ilDB->queryF("SELECT * FROM qpl_fb_mc WHERE question_fi = %s",
array('integer'),
array($this->getId())
);
// save generic feedback to the original
if ($result->numRows())
{
while ($row = $ilDB->fetchAssoc($result))
{
$next_id = $ilDB->nextId('qpl_fb_mc');
$affectedRows = $ilDB->manipulateF("INSERT INTO qpl_fb_mc (feedback_id, question_fi, answer, feedback, tstamp) VALUES (%s, %s, %s, %s, %s)",
array('integer','integer','integer','text','integer'),
array(
$next_id,
$this->original_id,
$row["answer"],
$row["feedback"],
time()
)
);
}
}
}

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assMultipleChoice::syncImages ( )
protected

Sync images of a MC question on synchronisation with the original question.

Definition at line 881 of file class.assMultipleChoice.php.

References $filename, $ilLog, ilUtil\delDir(), assQuestion\getImagePath(), assQuestion\getOriginalId(), getThumbPrefix(), and ilUtil\makeDirParents().

Referenced by syncWithOriginal().

{
global $ilLog;
$question_id = $this->getOriginalId();
$imagepath = $this->getImagePath();
$imagepath_original = str_replace("/$this->id/images", "/$question_id/images", $imagepath);
ilUtil::delDir($imagepath_original);
foreach ($this->answers as $answer)
{
$filename = $answer->getImage();
if (strlen($filename))
{
if (@file_exists($imagepath . $filename))
{
if (!file_exists($imagepath))
{
ilUtil::makeDirParents($imagepath);
}
if (!file_exists($imagepath_original))
{
ilUtil::makeDirParents($imagepath_original);
}
if (!@copy($imagepath . $filename, $imagepath_original . $filename))
{
$ilLog->write("image could not be duplicated!!!!", $ilLog->ERROR);
$ilLog->write("object: " . print_r($this, TRUE), $ilLog->ERROR);
}
}
if (@file_exists($imagepath . $this->getThumbPrefix() . $filename))
{
if (!@copy($imagepath . $this->getThumbPrefix() . $filename, $imagepath_original . $this->getThumbPrefix() . $filename))
{
$ilLog->write("image thumbnail could not be duplicated!!!!", $ilLog->ERROR);
$ilLog->write("object: " . print_r($this, TRUE), $ilLog->ERROR);
}
}
}
}
}

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assMultipleChoice::syncWithOriginal ( )

Reimplemented from assQuestion.

Definition at line 712 of file class.assMultipleChoice.php.

References assQuestion\getOriginalId(), syncFeedbackSingleAnswers(), and syncImages().

{
if ($this->getOriginalId())
{
$this->syncFeedbackSingleAnswers();
$this->syncImages();
parent::syncWithOriginal();
}
}

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assMultipleChoice::toJSON ( )

Returns a JSON representation of the question.

Definition at line 1092 of file class.assMultipleChoice.php.

References $answers, $mobs, $result, ilObjMediaObject\_getMobsOfObject(), ilRTE\_replaceMediaObjectImageSrc(), getAnswers(), assQuestion\getFeedbackGeneric(), getFeedbackSingleAnswer(), assQuestion\getId(), assQuestion\getNrOfTries(), assQuestion\getQuestion(), getQuestionType(), assQuestion\getShuffle(), and assQuestion\getTitle().

{
include_once("./Services/RTE/classes/class.ilRTE.php");
$result = array();
$result['id'] = (int) $this->getId();
$result['type'] = (string) $this->getQuestionType();
$result['title'] = (string) $this->getTitle();
$result['question'] = (string) ilRTE::_replaceMediaObjectImageSrc($this->getQuestion(), 0);
$result['nr_of_tries'] = (int) $this->getNrOfTries();
$result['shuffle'] = (bool) $this->getShuffle();
$result['feedback'] = array(
"onenotcorrect" => nl2br(ilRTE::_replaceMediaObjectImageSrc($this->getFeedbackGeneric(0), 0)),
"allcorrect" => nl2br(ilRTE::_replaceMediaObjectImageSrc($this->getFeedbackGeneric(1), 0))
);
$answers = array();
foreach ($this->getAnswers() as $key => $answer_obj)
{
array_push($answers, array(
"answertext" => (string) $answer_obj->getAnswertext(),
"points_checked" => (float) $answer_obj->getPointsChecked(),
"points_unchecked" => (float) $answer_obj->getPointsUnchecked(),
"order" => (int) $answer_obj->getOrder(),
"image" => $answer_obj->getImage(),
"feedback" => ilRTE::_replaceMediaObjectImageSrc($this->getFeedbackSingleAnswer($key), 0)
));
}
$result['answers'] = $answers;
$mobs = ilObjMediaObject::_getMobsOfObject("qpl:html", $this->getId());
$result['mobs'] = $mobs;
return json_encode($result);
}

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Field Documentation

assMultipleChoice::$answers

Definition at line 44 of file class.assMultipleChoice.php.

Referenced by getAnswers(), and toJSON().

assMultipleChoice::$output_type

Definition at line 54 of file class.assMultipleChoice.php.

Referenced by __construct(), getOutputType(), and setOutputType().

assMultipleChoice::$thumb_size
protected

Definition at line 61 of file class.assMultipleChoice.php.

Referenced by getThumbSize().

The documentation for this class was generated from the following file: