assMatchingQuestion Class Reference

Class for matching questions. More...

Inheritance diagram for assMatchingQuestion:

Collaboration diagram for assMatchingQuestion:

Public Member Functions
	__construct ( $title="", $comment="", $author="", $owner=-1, $question="", $matching_type=MT_TERMS_DEFINITIONS)
	assMatchingQuestion constructor More...
	isComplete ()
	Returns true, if a matching question is complete for use. More...
	saveToDb ($original_id="")
	Saves a assMatchingQuestion object to a database. More...
	saveAnswerSpecificDataToDb ()
	Saves the answer specific records into a question types answer table. More...
	saveAdditionalQuestionDataToDb ()
	Saves a record to the question types additional data table. More...
	loadFromDb ($question_id)
	Loads a assMatchingQuestion object from a database. More...
	duplicate ($for_test=true, $title="", $author="", $owner="", $testObjId=null)
	Duplicates an assMatchingQuestion. More...
	copyObject ($target_questionpool_id, $title="")
	Copies an assMatchingQuestion. More...
	createNewOriginalFromThisDuplicate ($targetParentId, $targetQuestionTitle="")
	duplicateImages ($question_id, $objectId=null)
	copyImages ($question_id, $source_questionpool)
	insertMatchingPair ($position, $term=null, $definition=null, $points=0.0)
	Inserts a matching pair for an matching choice question. More...
	addMatchingPair ($term=null, $definition=null, $points=0.0)
	Adds an matching pair for an matching choice question. More...
	getTermWithIdentifier ($a_identifier)
	Returns a term with a given identifier. More...
	getDefinitionWithIdentifier ($a_identifier)
	Returns a definition with a given identifier. More...
	getMatchingPair ($index=0)
	Returns a matching pair with a given index. More...
	deleteMatchingPair ($index=0)
	Deletes a matching pair with a given index. More...
	flushMatchingPairs ()
	Deletes all matching pairs. More...
	getMatchingPairCount ()
	Returns the number of matching pairs. More...
	getTerms ()
	Returns the terms of the matching question. More...
	getDefinitions ()
	Returns the definitions of the matching question. More...
	getTermCount ()
	Returns the number of terms. More...
	getDefinitionCount ()
	Returns the number of definitions. More...
	addTerm ($term)
	Adds a term. More...
	addDefinition ($definition)
	Adds a definition. More...
	insertTerm ($position, $term=null)
	Inserts a term. More...
	insertDefinition ($position, $definition=null)
	Inserts a definition. More...
	flushTerms ()
	Deletes all terms. More...
	flushDefinitions ()
	Deletes all definitions. More...
	deleteTerm ($position)
	Deletes a term. More...
	deleteDefinition ($position)
	Deletes a definition. More...
	setTerm ($term, $index)
	Sets a specific term. More...
	calculateReachedPoints ($active_id, $pass=NULL, $returndetails=FALSE)
	Returns the points, a learner has reached answering the question. More...
	getMaximumPoints ()
	Returns the maximum points, a learner can reach answering the question. More...
	getEncryptedFilename ($filename)
	Returns the encrypted save filename of a matching picture Images are saved with an encrypted filename to prevent users from cheating by guessing the solution from the image filename. More...
	removeTermImage ($index)
	removeDefinitionImage ($index)
	deleteImagefile ($filename)
	Deletes an imagefile from the system if the file is deleted manually. More...
	setImageFile ($image_tempfilename, $image_filename, $previous_filename='')
	Sets the image file and uploads the image to the object's image directory. More...
	checkSaveData ()
	Checks the data to be saved for consistency. More...
	saveWorkingData ($active_id, $pass=NULL)
	Saves the learners input of the question to the database. More...
	getRandomId ()
	setShuffle ($shuffle)
	Sets the shuffle flag. More...
	getQuestionType ()
	Returns the question type of the question. More...
	getAdditionalTableName ()
	Returns the name of the additional question data table in the database. More...
	getAnswerTableName ()
	Returns the name of the answer table in the database. More...
	getRTETextWithMediaObjects ()
	Collects all text in the question which could contain media objects which were created with the Rich Text Editor. More...
&	getMatchingPairs ()
	Returns the matchingpairs array. More...
	supportsJavascriptOutput ()
	Returns true if the question type supports JavaScript output. More...
	setExportDetailsXLS (&$worksheet, $startrow, $active_id, $pass, &$format_title, &$format_bold)
	Creates an Excel worksheet for the detailed cumulated results of this question. More...
	getThumbGeometry ()
	Get the thumbnail geometry. More...
	getThumbSize ()
	Get the thumbnail geometry. More...
	setThumbGeometry ($a_geometry)
	Set the thumbnail geometry. More...
	getElementHeight ()
	Get the minimum element height. More...
	setElementHeight ($a_height)
	Set the minimum element height. More...
	rebuildThumbnails ()
	Rebuild the thumbnail images with a new thumbnail size. More...
	getThumbPrefix ()
	getEstimatedElementHeight ()
	toJSON ()
	Returns a JSON representation of the question TODO. More...
Public Member Functions inherited from assQuestion
	__construct ( $title="", $comment="", $author="", $owner=-1, $question="")
	assQuestion constructor More...
	setProcessLocker ($processLocker)
	getProcessLocker ()
	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. More...
	toXML ($a_include_header=true, $a_include_binary=true, $a_shuffle=false, $test_output=false, $force_image_references=false)
	Returns a QTI xml representation of the question. More...
	isComplete ()
	Returns true, if a question is complete for use. More...
	questionTitleExists ($questionpool_id, $title)
	Returns TRUE if the question title exists in the database. More...
	setTitle ($title="")
	Sets the title string of the assQuestion object. More...
	setId ($id=-1)
	Sets the id of the assQuestion object. More...
	setTestId ($id=-1)
	Sets the test id of the assQuestion object. More...
	setComment ($comment="")
	Sets the comment string of the assQuestion object. More...
	setOutputType ($outputType=OUTPUT_HTML)
	Sets the output type. More...
	setShuffle ($shuffle=true)
	Sets the shuffle flag. More...
	setEstimatedWorkingTime ($hour=0, $min=0, $sec=0)
	Sets the estimated working time of a question. More...
	keyInArray ($searchkey, $array)
	returns TRUE if the key occurs in an array More...
	setAuthor ($author="")
	Sets the authors name of the assQuestion object. More...
	setOwner ($owner="")
	Sets the creator/owner ID of the assQuestion object. More...
	getTitle ()
	Gets the title string of the assQuestion object. More...
	getId ()
	Gets the id of the assQuestion object. More...
	getShuffle ()
	Gets the shuffle flag. More...
	getTestId ()
	Gets the test id of the assQuestion object. More...
	getComment ()
	Gets the comment string of the assQuestion object. More...
	getOutputType ()
	Gets the output type. More...
	supportsJavascriptOutput ()
	Returns true if the question type supports JavaScript output. More...
	supportsNonJsOutput ()
	requiresJsSwitch ()
	getEstimatedWorkingTime ()
	Gets the estimated working time of a question. More...
	getAuthor ()
	Gets the authors name of the assQuestion object. More...
	getOwner ()
	Gets the creator/owner ID of the assQuestion object. More...
	getObjId ()
	Get the object id of the container object. More...
	setObjId ($obj_id=0)
	Set the object id of the container object. More...
	setExternalId ($external_id)
	getExternalId ()
	_getMaximumPoints ($question_id)
	Returns the maximum points, a learner can reach answering the question. More...
&	_getQuestionInfo ($question_id)
	Returns question information from the database. More...
	getSuggestedSolutionOutput ()
&	_getSuggestedSolution ($question_id, $subquestion_index=0)
	Returns a suggested solution for a given subquestion index. More...
	getSuggestedSolutions ()
	Return the suggested solutions. More...
	_getReachedPoints ($active_id, $question_id, $pass=NULL)
	Returns the points, a learner has reached answering the question. More...
	getReachedPoints ($active_id, $pass=NULL)
	Returns the points, a learner has reached answering the question This is the fast way to get the points directly from the database. More...
	getMaximumPoints ()
	Returns the maximum points, a learner can reach answering the question. More...
	getAdjustedReachedPoints ($active_id, $pass=NULL)
	returns the reached points ... More...
	calculateResultsFromSolution ($active_id, $pass=NULL, $obligationsEnabled=false)
	Calculates the question results from a previously saved question solution. More...
	persistWorkingState ($active_id, $pass=NULL, $obligationsEnabled=false)
	persists the working state for current testactive and testpass More...
	saveWorkingData ($active_id, $pass=NULL)
	Saves the learners input of the question to the database. More...
	_updateTestResultCache ($active_id, ilAssQuestionProcessLocker $processLocker=null)
	Move this to a proper place. More...
	logAction ($logtext="", $active_id="", $question_id="")
	Logs an action into the Test&Assessment log. More...
	_logAction ($logtext="", $active_id="", $question_id="")
	Logs an action into the Test&Assessment log. More...
	moveUploadedMediaFile ($file, $name)
	Move an uploaded media file to an public accessible temp dir to present it. More...
	getSuggestedSolutionPath ()
	Returns the path for a suggested solution. More...
	getJavaPath ()
	Returns the image path for web accessable images of a question. More...
	getImagePath ($question_id=null, $object_id=null)
	Returns the image path for web accessable images of a question. More...
	getFlashPath ()
	Returns the image path for web accessable flash files of a question. More...
	getJavaPathWeb ()
	Returns the web image path for web accessable java applets of a question. More...
	getSuggestedSolutionPathWeb ()
	Returns the web path for a suggested solution. More...
	getImagePathWeb ()
	Returns the web image path for web accessable images of a question. More...
	getFlashPathWeb ()
	Returns the web image path for web accessable flash applications of a question. More...
&	getSolutionValues ($active_id, $pass=NULL)
	Loads solutions of a given user from the database an returns it. More...
	isInUse ($question_id="")
	Checks whether the question is in use or not. More...
	isClone ($question_id="")
	Checks whether the question is a clone of another question or not. More...
	pcArrayShuffle ($array)
	Shuffles the values of a given array. More...
	getQuestionTypeFromDb ($question_id)
	get question type for question id More...
	getAdditionalTableName ()
	Returns the name of the additional question data table in the database. More...
	getAnswerTableName ()
	Returns the name of the answer table in the database. More...
	deleteAnswers ($question_id)
	Deletes datasets from answers tables. More...
	deleteAdditionalTableData ($question_id)
	Deletes datasets from the additional question table in the database. More...
	delete ($question_id)
	Deletes a question and all materials from the database. More...
	getTotalAnswers ()
	get total number of answers More...
	_getTotalAnswers ($a_q_id)
	get number of answers for question id (static) note: do not use $this inside this method More...
	_getTotalRightAnswers ($a_q_id)
	get number of answers for question id (static) note: do not use $this inside this method More...
	_getTitle ($a_q_id)
	Returns the title of a question. More...
	_getQuestionText ($a_q_id)
	Returns question text. More...
	copyXHTMLMediaObjectsOfQuestion ($a_q_id)
	syncXHTMLMediaObjectsOfQuestion ()
	createPageObject ()
	create page object of question More...
	copyPageOfQuestion ($a_q_id)
	getPageOfQuestion ()
	_getQuestionType ($question_id)
	Returns the question type of a question with a given id. More...
	_getQuestionTitle ($question_id)
	Returns the question title of a question with a given id. More...
	setOriginalId ($original_id)
	getOriginalId ()
	loadFromDb ($question_id)
	Loads the question from the database. More...
	createNewQuestion ($a_create_page=true)
	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. More...
	saveQuestionDataToDb ($original_id="")
	saveToDb ($original_id="")
	Saves the question to the database. More...
	setNewOriginalId ($newId)
	deleteSuggestedSolutions ()
	Deletes all suggestes solutions in the database. More...
	getSuggestedSolution ($subquestion_index=0)
	Returns a suggested solution for a given subquestion index. More...
	getSuggestedSolutionTitle ($subquestion_index=0)
	Returns the title of a suggested solution at a given subquestion_index. More...
	setSuggestedSolution ($solution_id="", $subquestion_index=0, $is_import=false)
	Sets a suggested solution for the question. More...
	_resolveInternalLink ($internal_link)
	_resolveIntLinks ($question_id)
	_getInternalLinkHref ($target="")
	syncWithOriginal ()
	createRandomSolution ($test_id, $user_id)
	_questionExists ($question_id)
	Returns true if the question already exists in the database. More...
	_questionExistsInPool ($question_id)
	Returns true if the question already exists in the database and is assigned to a question pool. More...
	getPoints ()
	Returns the maximum available points for the question. More...
	setPoints ($a_points)
	Sets the maximum available points for the question. More...
	getSolutionMaxPass ($active_id)
	Returns the maximum pass a users question solution. More...
	_getSolutionMaxPass ($question_id, $active_id)
	Returns the maximum pass a users question solution. More...
	_isWriteable ($question_id, $user_id)
	Returns true if the question is writeable by a certain user. More...
	_isUsedInRandomTest ($question_id="")
	Checks whether the question is used in a random test or not. More...
	calculateReachedPoints ($active_id, $pass=NULL, $returndetails=FALSE)
	Returns the points, a learner has reached answering the question. More...
	adjustReachedPointsByScoringOptions ($points, $active_id, $pass=NULL)
	Adjust the given reached points by checks for all special scoring options in the test container. More...
	isHTML ($a_text)
	Checks if a given string contains HTML or not. More...
	prepareTextareaOutput ($txt_output, $prepare_for_latex_output=FALSE)
	Prepares a string for a text area output in tests. More...
	QTIMaterialToString ($a_material)
	Reads an QTI material tag an creates a text string. More...
	addQTIMaterial (&$a_xml_writer, $a_material, $close_material_tag=TRUE, $add_mobs=TRUE)
	Creates a QTI material tag from a plain text or xhtml text. More...
	createNewImageFileName ($image_filename)
	_setReachedPoints ($active_id, $question_id, $points, $maxpoints, $pass, $manualscoring, $obligationsEnabled)
	Sets the points, a learner has reached answering the question Additionally objective results are updated. More...
	getQuestion ()
	Gets the question string of the question object. More...
	setQuestion ($question="")
	Sets the question string of the question object. More...
	getQuestionType ()
	Returns the question type of the question. More...
	getQuestionTypeID ()
	Returns the question type of the question. More...
	getRTETextWithMediaObjects ()
	Collects all text in the question which could contain media objects which were created with the Rich Text Editor. More...
	cleanupMediaObjectUsage ()
	synchronises appearances of media objects in the question with media object usage table More...
&	getInstances ()
	Gets all instances of the question. More...
	_needsManualScoring ($question_id)
	getActiveUserData ($active_id)
	Returns the user id and the test id for a given active id. More...
	setExportDetailsXLS (&$worksheet, $startrow, $active_id, $pass, &$format_title, &$format_bold)
	Creates an Excel worksheet for the detailed cumulated results of this question. More...
	__get ($value)
	Object getter. More...
	__set ($key, $value)
	Object setter. More...
	getNrOfTries ()
	setNrOfTries ($a_nr_of_tries)
	setExportImagePath ($a_path)
	_questionExistsInTest ($question_id, $test_id)
	formatSAQuestion ($a_q)
	Format self assessment question. More...
	setPreventRteUsage ($a_val)
	Set prevent rte usage. More...
	getPreventRteUsage ()
	Get prevent rte usage. More...
	setSelfAssessmentEditingMode ($a_selfassessmenteditingmode)
	Set Self-Assessment Editing Mode. More...
	getSelfAssessmentEditingMode ()
	Get Self-Assessment Editing Mode. More...
	setDefaultNrOfTries ($a_defaultnroftries)
	Set Default Nr of Tries. More...
	getDefaultNrOfTries ()
	Get Default Nr of Tries. More...
	isAnswered ($active_id, $pass=null)
	returns boolean wether the question is answered during test pass or not More...
	setObligationsToBeConsidered ($obligationsToBeConsidered=true)
	sets the flag wether obligations are to be considered or not More...
	areObligationsToBeConsidered ()
	gets the flag wether obligations are to be considered or not More...
	isAutosaveable ()
	getAdditionalContentEditingMode ()
	getter for additional content editing mode for this question More...
	setAdditionalContentEditingMode ($additinalContentEditingMode)
	setter for additional content editing mode for this question More...
	isAdditionalContentEditingModePageObject ()
	isser for additional "pageobject" content editing mode More...
	isValidAdditionalContentEditingMode ($additionalContentEditingMode)
	returns the fact wether the passed additional content mode is valid or not More...
	getValidAdditionalContentEditingModes ()
	getter for valid additional content editing modes More...
	addQuestionChangeListener (ilQuestionChangeListener $listener)
	getQuestionChangeListeners ()
	getHtmlUserSolutionPurifier ()
	duplicate ($for_test=true, $title="", $author="", $owner="", $testObjId=null)

Data Fields
	$matchingpairs
	$matching_type
	$thumb_geometry = 100
	$element_height
Data Fields inherited from assQuestion
const	ADDITIONAL_CONTENT_EDITING_MODE_DEFAULT = 'default'
	constant for additional content editing mode "default" More...
const	ADDITIONAL_CONTENT_EDITING_MODE_PAGE_OBJECT = 'pageobject'
	constant for additional content editing mode "pageobject" More...
	$feedbackOBJ = null
	$prevent_rte_usage = false
	$selfassessmenteditingmode = false
	$defaultnroftries = false

Protected Member Functions
	reworkWorkingData ($active_id, $pass, $obligationsAnswered)
	Reworks the allready saved working data if neccessary. More...
	generateThumbForFile ($path, $file)
Protected Member Functions inherited from assQuestion
	reworkWorkingData ($active_id, $pass, $obligationsAnswered)
	Reworks the allready saved working data if neccessary. More...
	deletePageOfQuestion ($question_id)
	Deletes the page object of a question with a given ID. More...
	onDuplicate ($originalParentId, $originalQuestionId, $duplicateParentId, $duplicateQuestionId)
	Will be called when a question is duplicated (inside a question pool or for insertion in a test) More...
	onSyncWithOriginal ($originalQuestionId, $duplicateQuestionId)
	onCopy ($sourceParentId, $sourceQuestionId, $targetParentId, $targetQuestionId)
	Will be called when a question is copied (into another question pool) More...
	duplicateSuggestedSolutionFiles ($parent_id, $question_id)
	Duplicates the files of a suggested solution if the question is duplicated. More...
	syncSuggestedSolutionFiles ($original_id)
	Syncs the files of a suggested solution if the question is synced. More...
	copySuggestedSolutionFiles ($source_questionpool_id, $source_question_id)
	duplicateQuestionHints ($originalQuestionId, $duplicateQuestionId)

Protected Attributes
	$terms
	$definitions
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
	$external_id = ''
	$questionChangeListeners = array()
	$processLocker

Additional Inherited Members
Static Public Member Functions inherited from assQuestion
static	_getSuggestedSolutionCount ($question_id)
	Returns the number of suggested solutions associated with a question. More...
static	_getSuggestedSolutionOutput ($question_id)
	Returns the output of the suggested solution. More...
static	_getOriginalId ($question_id)
	Returns the original id of a question. More...
static	originalQuestionExists ($questionId)
static	_instanciateQuestion ($question_id)
	Creates an instance of a question with a given question id. More...
static	_instantiateQuestion ($question_id)
static	_isWorkedThrough ($active_id, $question_id, $pass=NULL)
	Returns true if the question was worked through in the given pass Worked through means that the user entered at least one value. More...
static	_areAnswered ($a_user_id, $a_question_ids)
	Checks if an array of question ids is answered by an user or not. More...
static	_includeClass ($question_type, $gui=0)
	Include the php class file for a given question type. More...
static	getGuiClassNameByQuestionType ($questionType)
static	getObjectClassNameByQuestionType ($questionType)
static	getFeedbackClassNameByQuestionType ($questionType)
static	isCoreQuestionType ($questionType)
static	includeCoreClass ($questionType, $withGuiClass)
static	includePluginClass ($questionType, $withGuiClass)
static	_getQuestionTypeName ($type_tag)
	Return the translation for a given question type tag. More...
static &	_instanciateQuestionGUI ($question_id)
	Creates an instance of a question gui with a given question id. More...
static	instantiateQuestionGUI ($a_question_id)
	Creates an instance of a question gui with a given question id. More...
static	lookupParentObjId ($questionId)
	ilDB $ilDB More...
static	lookupOriginalParentObjId ($originalQuestionId)
	returns the parent object id for given original question id (should be a qpl id, but theoretically it can be a tst id, too) More...
static	isObligationPossible ($questionId)
	returns boolean wether it is possible to set this question type as obligatory or not considering the current question configuration More...
Static Protected Member Functions inherited from assQuestion
static	doesSolutionRecordsExist ($activeId, $pass, $questionId)
	checks wether there are existing solution records for the given test active / pass and given question id More...

Detailed Description

Class for matching questions.

assMatchingQuestion is a class for matching 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

Björn Heyser bheys.nosp@m.er@d.nosp@m.ataba.nosp@m.y.de

Maximilian Becker mbeck.nosp@m.er@d.nosp@m.ataba.nosp@m.y.de

Version

$Id$

Definition at line 22 of file class.assMatchingQuestion.php.

Constructor & Destructor Documentation

__construct()

assMatchingQuestion::__construct	(		$title = "",
			$comment = "",
			$author = "",
			$owner = -1,
			$question = "",
			$matching_type = MT_TERMS_DEFINITIONS
	)

assMatchingQuestion constructor

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

Parameters

string	$title	A title string to describe the question
string	$comment	A comment string to describe the question
string	$author	A string containing the name of the questions author
integer	$owner	A numerical ID to identify the owner/creator
string	$question	The question string of the matching question
int	$matching_type

Returns

Definition at line 79 of file class.assMatchingQuestion.php.

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

        {
                parent::__construct($title, $comment, $author, $owner, $question);
                $this->matchingpairs = array();
                $this->matching_type = $matching_type;
                $this->terms = array();
                $this->definitions = array();
        }

Member Function Documentation

addDefinition()

assMatchingQuestion::addDefinition

(

$definition

)

Adds a definition.

Parameters

object

$definition

The definition

See also

$definitions

Definition at line 754 of file class.assMatchingQuestion.php.

        {
                array_push($this->definitions, $definition);
        }

addMatchingPair()

assMatchingQuestion::addMatchingPair	(		$term = null,
			$definition = null,
			$points = 0.0
	)

Adds an matching pair for an matching choice question.

The students have to fill in an order for the matching pair. The matching pair is an ASS_AnswerMatching object that will be created and assigned to the array $this->matchingpairs.

Parameters

assAnswerMatchingTerm | null	$term	A matching term
assAnswerMatchingDefinition | null	$definition	A matching definition
float	$points	The points for selecting the matching pair, incl. negative.

See also

$matchingpairs

Definition at line 582 of file class.assMatchingQuestion.php.

References assQuestion\$points.

        {
                require_once './Modules/TestQuestionPool/classes/class.assAnswerMatchingPair.php';
                require_once './Modules/TestQuestionPool/classes/class.assAnswerMatchingTerm.php';
                require_once './Modules/TestQuestionPool/classes/class.assAnswerMatchingDefinition.php';
                if (is_null($term)) 
                {
                        $term = new assAnswerMatchingTerm();
                }
                if (is_null($definition)) 
                {
                        $definition = new assAnswerMatchingDefinition();
                }
                $pair = new assAnswerMatchingPair($term, $definition, $points);
                array_push($this->matchingpairs, $pair);
        }

addTerm()

assMatchingQuestion::addTerm

(

$term

)

Adds a term.

Parameters

string

$term

The text of the term

See also

$terms

Definition at line 743 of file class.assMatchingQuestion.php.

        {
                array_push($this->terms, $term);
        }

calculateReachedPoints()

assMatchingQuestion::calculateReachedPoints	(		$active_id,
			$pass = NULL,
			$returndetails = FALSE
	)

Returns the points, a learner has reached answering the question.

The points are calculated from the given answers.

public

Parameters

integer	$active_id
integer	$pass
boolean	$returndetails	(deprecated !!)

Returns

integer/array $points/$details (array $details is deprecated !!)

Definition at line 873 of file class.assMatchingQuestion.php.

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

        {
                if( $returndetails )
                {
                        throw new ilTestException('return details not implemented for '.__METHOD__);
                }
                
                global $ilDB;
                
                $found_value1 = array();
                $found_value2 = array();
                if (is_null($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_value1, $data["value1"]);
                                array_push($found_value2, $data["value2"]);
                        }
                }
                $points = 0;
                foreach ($found_value2 as $key => $value)
                {
                        foreach ($this->matchingpairs as $pair)
                        {
                                if (($pair->definition->identifier == $value) && ($pair->term->identifier == $found_value1[$key]))
                                {
                                        $points += $pair->points;
                                }
                        }
                }

                return $points;
        }

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checkSaveData()

assMatchingQuestion::checkSaveData

(

)

Checks the data to be saved for consistency.

Returns

boolean True, if the check was ok, False otherwise

See also

$answers

Definition at line 1028 of file class.assMatchingQuestion.php.

References $_POST, $result, assQuestion\getId(), and ilUtil\sendFailure().

Referenced by saveWorkingData().

        {
                $result = true;
                $matching_values = array();
                foreach ($_POST['matching'][$this->getId()] as $definition => $term)
                {
                        if ($term > 0)
                        {
                                array_push($matching_values, $term);
                        }
                }

                $check_matching = array_flip($matching_values);
                if (count($check_matching) != count($matching_values))
                {
                        $result = false;
                        ilUtil::sendFailure($this->lng->txt("duplicate_matching_values_selected"), true);
                }
                return $result;
        }

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copyImages()

assMatchingQuestion::copyImages	(		$question_id,
			$source_questionpool
	)

Definition at line 494 of file class.assMatchingQuestion.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->terms as $term)
                {
                        if (strlen($term->picture))
                        {
                                if (!file_exists($imagepath))
                                {
                                        ilUtil::makeDirParents($imagepath);
                                }
                                $filename = $term->picture;
                                if (!@copy($imagepath_original . $filename, $imagepath . $filename)) 
                                {
                                        $ilLog->write("matching question image could not be copied: $imagepath_original$filename");
                                }
                                if (!@copy($imagepath_original . $this->getThumbPrefix() . $filename, $imagepath . $this->getThumbPrefix() . $filename)) 
                                {
                                        $ilLog->write("matching question image thumbnail could not be copied: $imagepath_original" . $this->getThumbPrefix() . $filename);
                                }
                        }
                }
                foreach ($this->definitions as $definition)
                {
                        if (strlen($definition->picture))
                        {
                                $filename = $definition->picture;
                                if (!file_exists($imagepath))
                                {
                                        ilUtil::makeDirParents($imagepath);
                                }
                                if (!copy($imagepath_original . $filename, $imagepath . $filename)) 
                                {
                                        $ilLog->write("matching question image could not be copied: $imagepath_original$filename");
                                }
                                if (!copy($imagepath_original . $this->getThumbPrefix() . $filename, $imagepath . $this->getThumbPrefix() . $filename)) 
                                {
                                        $ilLog->write("matching question image thumbnail could not be copied: $imagepath_original" . $this->getThumbPrefix() . $filename);
                                }
                        }
                }
        }

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copyObject()

assMatchingQuestion::copyObject	(		$target_questionpool_id,
			$title = ""
	)

Copies an assMatchingQuestion.

Definition at line 369 of file class.assMatchingQuestion.php.

References assQuestion\$original_id, assQuestion\$title, assQuestion\_getOriginalId(), 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_id = $this->getObjId();
                $clone->setObjId($target_questionpool_id);
                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_id);
                
                $clone->onCopy($source_questionpool_id, $original_id, $clone->getObjId(), $clone->getId());
                
                return $clone->id;
        }

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createNewOriginalFromThisDuplicate()

assMatchingQuestion::createNewOriginalFromThisDuplicate	(		$targetParentId,
			$targetQuestionTitle = ""
	)

Definition at line 400 of file class.assMatchingQuestion.php.

References assQuestion\$id, and assQuestion\getObjId().

        {
                if ($this->id <= 0)
                {
                        // The question has not been saved. It cannot be duplicated
                        return;
                }

                include_once ("./Modules/TestQuestionPool/classes/class.assQuestion.php");

                $sourceQuestionId = $this->id;
                $sourceParentId = $this->getObjId();

                // duplicate the question in database
                $clone = $this;
                $clone->id = -1;

                $clone->setObjId($targetParentId);

                if ($targetQuestionTitle)
                {
                        $clone->setTitle($targetQuestionTitle);
                }

                $clone->saveToDb();
                // copy question page content
                $clone->copyPageOfQuestion($sourceQuestionId);
                // copy XHTML media objects
                $clone->copyXHTMLMediaObjectsOfQuestion($sourceQuestionId);
                // duplicate the image
                $clone->copyImages($sourceQuestionId, $sourceParentId);

                $clone->onCopy($sourceParentId, $sourceQuestionId, $clone->getObjId(), $clone->getId());

                return $clone->id;
        }

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deleteDefinition()

assMatchingQuestion::deleteDefinition

(

$position

)

Deletes a definition.

Parameters

integer

$position

The position of the definition in the definition array

See also

$definitions

Definition at line 845 of file class.assMatchingQuestion.php.

        {
                unset($this->definitions[$position]);
                $this->definitions = array_values($this->definitions);
        }

deleteImagefile()

assMatchingQuestion::deleteImagefile

(

$filename

)

Deletes an imagefile from the system if the file is deleted manually.

Parameters

string

$filename

Image file filename

Returns

boolean Success

Definition at line 976 of file class.assMatchingQuestion.php.

References $filename, $result, assQuestion\getImagePath(), and getThumbPrefix().

Referenced by removeDefinitionImage(), removeTermImage(), and setImageFile().

        {
                $deletename = $filename;
                $result = @unlink($this->getImagePath().$deletename);
                $result = $result & @unlink($this->getImagePath().$this->getThumbPrefix() . $deletename);
                return $result;
        }

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deleteMatchingPair()

assMatchingQuestion::deleteMatchingPair

(

$index = 0

)

Deletes a matching pair with a given index.

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

Parameters

integer

$index

A nonnegative index of the n-th matching pair

See also

$matchingpairs

Definition at line 655 of file class.assMatchingQuestion.php.

        {
                if ($index < 0)
                {
                        return;
                }
                if (count($this->matchingpairs) < 1)
                {
                        return;
                }
                if ($index >= count($this->matchingpairs))
                {
                        return;
                }
                unset($this->matchingpairs[$index]);
                $this->matchingpairs = array_values($this->matchingpairs);
        }

deleteTerm()

assMatchingQuestion::deleteTerm

(

$position

)

Deletes a term.

Parameters

string

$term_id

The id of the term to delete

See also

$terms

Definition at line 833 of file class.assMatchingQuestion.php.

        {
                unset($this->terms[$position]);
                $this->terms = array_values($this->terms);
        }

duplicate()

assMatchingQuestion::duplicate	(		$for_test = true,
			$title = "",
			$author = "",
			$owner = "",
			$testObjId = null
	)

Duplicates an assMatchingQuestion.

Definition at line 312 of file class.assMatchingQuestion.php.

References assQuestion\$author, assQuestion\$original_id, assQuestion\$owner, 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
                $this_id = $this->getId();
                $thisObjId = $this->getObjId();
                
                $clone = $this;
                include_once ("./Modules/TestQuestionPool/classes/class.assQuestion.php");
                $original_id = assQuestion::_getOriginalId($this->id);
                $clone->id = -1;
                
                if( (int)$testObjId > 0 )
                {
                        $clone->setObjId($testObjId);
                }
                
                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 image
                $clone->duplicateImages($this_id, $thisObjId);

                $clone->onDuplicate($thisObjId, $this_id, $clone->getObjId(), $clone->getId());
                
                return $clone->id;
        }

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duplicateImages()

assMatchingQuestion::duplicateImages	(		$question_id,
			$objectId = null
	)

Definition at line 437 of file class.assMatchingQuestion.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);
                
                if( (int)$objectId > 0 )
                {
                        $imagepath_original = str_replace("/$this->obj_id/", "/$objectId/", $imagepath_original);
                }
                
                foreach ($this->terms as $term)
                {
                        if (strlen($term->picture))
                        {
                                $filename = $term->picture;
                                if (!file_exists($imagepath))
                                {
                                        ilUtil::makeDirParents($imagepath);
                                }
                                if (!@copy($imagepath_original . $filename, $imagepath . $filename)) 
                                {
                                        $ilLog->write("matching question image could not be duplicated: $imagepath_original$filename");
                                }
                                if (@file_exists($imagepath_original . $this->getThumbPrefix() . $filename)) 
                                {
                                        if (!@copy($imagepath_original . $this->getThumbPrefix() . $filename, $imagepath . $this->getThumbPrefix() . $filename)) 
                                        {
                                                $ilLog->write("matching question image thumbnail could not be duplicated: $imagepath_original" . $this->getThumbPrefix() . $filename);
                                        }
                                }
                        }
                }
                foreach ($this->definitions as $definition)
                {
                        if (strlen($definition->picture))
                        {
                                $filename = $definition->picture;
                                if (!file_exists($imagepath))
                                {
                                        ilUtil::makeDirParents($imagepath);
                                }
                                if (!@copy($imagepath_original . $filename, $imagepath . $filename)) 
                                {
                                        $ilLog->write("matching question image could not be duplicated: $imagepath_original$filename");
                                }
                                if (@file_exists($imagepath_original . $this->getThumbPrefix() . $filename))
                                {
                                        if (!@copy($imagepath_original . $this->getThumbPrefix() . $filename, $imagepath . $this->getThumbPrefix() . $filename)) 
                                        {
                                                $ilLog->write("matching question image thumbnail could not be duplicated: $imagepath_original" . $this->getThumbPrefix() . $filename);
                                        }
                                }
                        }
                }
        }

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flushDefinitions()

assMatchingQuestion::flushDefinitions

(

)

Deletes all definitions.

See also

$definitions

Definition at line 822 of file class.assMatchingQuestion.php.

        {
                $this->definitions = array();
        }

flushMatchingPairs()

assMatchingQuestion::flushMatchingPairs

(

)

Deletes all matching pairs.

See also

$matchingpairs

Definition at line 677 of file class.assMatchingQuestion.php.

        {
                $this->matchingpairs = array();
        }

flushTerms()

assMatchingQuestion::flushTerms

(

)

Deletes all terms.

See also

$terms

Definition at line 813 of file class.assMatchingQuestion.php.

        {
                $this->terms = array();
        }

generateThumbForFile()

assMatchingQuestion::generateThumbForFile (   $path,   $file  )

protected

Definition at line 1354 of file class.assMatchingQuestion.php.

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

Referenced by rebuildThumbnails().

        {
                $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->getThumbGeometry());
                }
        }

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getAdditionalTableName()

assMatchingQuestion::getAdditionalTableName

(

)

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

Returns

string The additional table name

Definition at line 1187 of file class.assMatchingQuestion.php.

Referenced by loadFromDb(), and saveAdditionalQuestionDataToDb().

        {
                return "qpl_qst_matching";
        }

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getAnswerTableName()

assMatchingQuestion::getAnswerTableName

(

)

Returns the name of the answer table in the database.

Returns

string The answer table name

Definition at line 1197 of file class.assMatchingQuestion.php.

        {
                return array("qpl_a_matching", "qpl_a_mterm");
        }

getDefinitionCount()

assMatchingQuestion::getDefinitionCount

(

)

Returns the number of definitions.

Returns

integer The number of definitions

See also

$definitions

Definition at line 732 of file class.assMatchingQuestion.php.

        {
                return count($this->definitions);
        }

getDefinitions()

assMatchingQuestion::getDefinitions

(

)

Returns the definitions of the matching question.

Returns

array An array containing the definitions

See also

$terms

Definition at line 710 of file class.assMatchingQuestion.php.

References $definitions.

Referenced by toJSON().

        {
                return $this->definitions;
        }

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getDefinitionWithIdentifier()

assMatchingQuestion::getDefinitionWithIdentifier

(

$a_identifier

)

Returns a definition with a given identifier.

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

        {
                foreach ($this->definitions as $definition)
                {
                        if ($definition->identifier == $a_identifier) return $definition;
                }
                return null;
        }

getElementHeight()

assMatchingQuestion::getElementHeight

(

)

Get the minimum element height.

Returns

integer Height

Definition at line 1319 of file class.assMatchingQuestion.php.

References $element_height.

Referenced by getEstimatedElementHeight(), and saveAdditionalQuestionDataToDb().

        {
                return $this->element_height;
        }

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getEncryptedFilename()

assMatchingQuestion::getEncryptedFilename

(

$filename

)

Returns the encrypted save filename of a matching picture Images are saved with an encrypted filename to prevent users from cheating by guessing the solution from the image filename.

Parameters

string

$filename

Original filename

Returns

string Encrypted filename

Definition at line 939 of file class.assMatchingQuestion.php.

References $filename.

        {
                $extension = "";
                if (preg_match("/.*\\.(\\w+)$/", $filename, $matches))
                {
                        $extension = $matches[1];
                }
                return md5($filename) . "." . $extension;
        }

getEstimatedElementHeight()

assMatchingQuestion::getEstimatedElementHeight

(

)

Definition at line 1378 of file class.assMatchingQuestion.php.

References getElementHeight(), and getThumbSize().

        {
                $hasImages = false;
                foreach ($this->terms as $term)
                {
                        if (strlen($term->picture))
                        {
                                $hasImages = true;
                        }
                }
                foreach ($this->definitions as $definition)
                {
                        if (strlen($definition->picture))
                        {
                                $hasImages = true;
                        }
                }
                if ($hasImages)
                { // 40 is approx. the height of the preview image
                        return max($this->getElementHeight(), $this->getThumbSize() + 40);
                }
                else
                {
                        return ($this->getElementHeight()) ? $this->getElementHeight() : 0;
                }
        }

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getMatchingPair()

assMatchingQuestion::getMatchingPair

(

$index = 0

)

Returns a matching pair with a given index.

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

Parameters

integer

$index

A nonnegative index of the n-th matching pair

Returns

object ASS_AnswerMatching-Object

See also

$matchingpairs

Definition at line 631 of file class.assMatchingQuestion.php.

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

getMatchingPairCount()

assMatchingQuestion::getMatchingPairCount

(

)

Returns the number of matching pairs.

Returns

integer The number of matching pairs of the matching question

See also

$matchingpairs

Definition at line 688 of file class.assMatchingQuestion.php.

        {
                return count($this->matchingpairs);
        }

getMatchingPairs()

& assMatchingQuestion::getMatchingPairs

(

)

Returns the matchingpairs array.

Definition at line 1214 of file class.assMatchingQuestion.php.

References $matchingpairs.

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

        {
                return $this->matchingpairs;
        }

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getMaximumPoints()

assMatchingQuestion::getMaximumPoints

(

)

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

Definition at line 918 of file class.assMatchingQuestion.php.

References assQuestion\$points.

Referenced by isComplete().

        {
                $points = 0;
                foreach ($this->matchingpairs as $key => $pair)
                {
                        if ($pair->points > 0)
                        {
                                $points += $pair->points;
                        }
                }
                return $points;
        }

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getQuestionType()

assMatchingQuestion::getQuestionType

(

)

Returns the question type of the question.

Returns

integer The question type of the question

Definition at line 1177 of file class.assMatchingQuestion.php.

Referenced by toJSON().

        {
                return "assMatchingQuestion";
        }

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getRandomId()

assMatchingQuestion::getRandomId

(

)

Definition at line 1130 of file class.assMatchingQuestion.php.

        {
                mt_srand((double)microtime()*1000000);
                $random_number = mt_rand(1, 100000);
                $found = FALSE;
                while ($found)
                {
                        $found = FALSE;
                        foreach ($this->matchingpairs as $key => $pair)
                        {
                                if (($pair->term->identifier == $random_number) || ($pair->definition->identifier == $random_number))
                                {
                                        $found = TRUE;
                                        $random_number++;
                                }
                        }
                }
                return $random_number;
        }

getRTETextWithMediaObjects()

assMatchingQuestion::getRTETextWithMediaObjects

(

)

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

Definition at line 1206 of file class.assMatchingQuestion.php.

        {
                return parent::getRTETextWithMediaObjects();
        }

getTermCount()

assMatchingQuestion::getTermCount

(

)

Returns the number of terms.

Returns

integer The number of terms

See also

$terms

Definition at line 721 of file class.assMatchingQuestion.php.

        {
                return count($this->terms);
        }

getTerms()

assMatchingQuestion::getTerms

(

)

Returns the terms of the matching question.

Returns

array An array containing the terms

See also

$terms

Definition at line 699 of file class.assMatchingQuestion.php.

References $terms.

Referenced by toJSON().

        {
                return $this->terms;
        }

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getTermWithIdentifier()

assMatchingQuestion::getTermWithIdentifier

(

$a_identifier

)

Returns a term with a given identifier.

Definition at line 602 of file class.assMatchingQuestion.php.

        {
                foreach ($this->terms as $term)
                {
                        if ($term->identifier == $a_identifier) return $term;
                }
                return null;
        }

getThumbGeometry()

assMatchingQuestion::getThumbGeometry

(

)

Get the thumbnail geometry.

Returns

integer Geometry

Definition at line 1289 of file class.assMatchingQuestion.php.

References $thumb_geometry.

Referenced by generateThumbForFile(), getThumbSize(), and saveAdditionalQuestionDataToDb().

        {
                return $this->thumb_geometry;
        }

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getThumbPrefix()

assMatchingQuestion::getThumbPrefix

(

)

Definition at line 1349 of file class.assMatchingQuestion.php.

Referenced by copyImages(), deleteImagefile(), duplicateImages(), generateThumbForFile(), and setImageFile().

        {
                return "thumb.";
        }

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getThumbSize()

assMatchingQuestion::getThumbSize

(

)

Get the thumbnail geometry.

Returns

integer Geometry

Definition at line 1299 of file class.assMatchingQuestion.php.

References getThumbGeometry().

Referenced by getEstimatedElementHeight().

        {
                return $this->getThumbGeometry();
        }

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insertDefinition()

assMatchingQuestion::insertDefinition	(		$position,
			$definition = null
	)

Inserts a definition.

Parameters

object

$definition

The definition

See also

$definitions

Definition at line 790 of file class.assMatchingQuestion.php.

        {
                if (is_null($definition))
                {
                        include_once "./Modules/TestQuestionPool/classes/class.assAnswerMatchingDefinition.php";
                        $definition = new assAnswerMatchingDefinition();
                }
                if ($position < count($this->definitions))
                {
                        $part1 = array_slice($this->definitions, 0, $position);
                        $part2 = array_slice($this->definitions, $position);
                        $this->definitions = array_merge($part1, array($definition), $part2);
                }
                else
                {
                        array_push($this->definitions, $definition);
                }
        }

insertMatchingPair()

assMatchingQuestion::insertMatchingPair	(		$position,
			$term = null,
			$definition = null,
			$points = 0.0
	)

Inserts a matching pair for an matching choice question.

The students have to fill in an order for the matching pair. The matching pair is an ASS_AnswerMatching object that will be created and assigned to the array $this->matchingpairs.

Parameters

integer	$position	The insert position in the matching pairs array
object	$term	A matching term
object	$definition	A matching definition
double	$points	The points for selecting the matching pair (even negative points can be used)

See also

$matchingpairs

Definition at line 551 of file class.assMatchingQuestion.php.

References assQuestion\$points.

        {
                include_once "./Modules/TestQuestionPool/classes/class.assAnswerMatchingPair.php";
                include_once "./Modules/TestQuestionPool/classes/class.assAnswerMatchingTerm.php";
                include_once "./Modules/TestQuestionPool/classes/class.assAnswerMatchingDefinition.php";
                if (is_null($term)) $term = new assAnswerMatchingTerm();
                if (is_null($definition)) $definition = new assAnswerMatchingDefinition();
                $pair = new assAnswerMatchingPair($term, $definition, $points);
                if ($position < count($this->matchingpairs))
                {
                        $part1 = array_slice($this->matchingpairs, 0, $position);
                        $part2 = array_slice($this->matchingpairs, $position);
                        $this->matchingpairs = array_merge($part1, array($pair), $part2);
                }
                else
                {
                        array_push($this->matchingpairs, $pair);
                }
        }

insertTerm()

assMatchingQuestion::insertTerm	(		$position,
			$term = null
	)

Inserts a term.

Parameters

string

$term

The text of the term

See also

$terms

Definition at line 765 of file class.assMatchingQuestion.php.

        {
                if (is_null($term))
                {
                        include_once "./Modules/TestQuestionPool/classes/class.assAnswerMatchingTerm.php";
                        $term = new assAnswerMatchingTerm();
                }
                if ($position < count($this->terms))
                {
                        $part1 = array_slice($this->terms, 0, $position);
                        $part2 = array_slice($this->terms, $position);
                        $this->terms = array_merge($part1, array($term), $part2);
                }
                else
                {
                        array_push($this->terms, $term);
                }
        }

isComplete()

assMatchingQuestion::isComplete

(

)

Returns true, if a matching question is complete for use.

Returns

boolean True, if the matching question is complete for use, otherwise false

Definition at line 100 of file class.assMatchingQuestion.php.

References getMaximumPoints().

        {
                if (strlen($this->title) 
                        && $this->author 
                        && $this->question 
                        && count($this->matchingpairs) 
                        && $this->getMaximumPoints() > 0
                )
                {
                        return true;
                }
                return false;
        }

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loadFromDb()

assMatchingQuestion::loadFromDb

(

$question_id

)

Loads a assMatchingQuestion object from a database.

Parameters

object	$db	A pear DB object
integer	$question_id	A unique key which defines the multiple choice test in the database

Definition at line 222 of file class.assMatchingQuestion.php.

References $data, $result, ilRTE\_replaceMediaObjectImageSrc(), ilDB\fetchAssoc(), getAdditionalTableName(), assQuestion\setAdditionalContentEditingMode(), assQuestion\setAuthor(), assQuestion\setComment(), setElementHeight(), assQuestion\setEstimatedWorkingTime(), assQuestion\setId(), assQuestion\setNrOfTries(), assQuestion\setObjId(), assQuestion\setOriginalId(), assQuestion\setOwner(), assQuestion\setPoints(), assQuestion\setQuestion(), setShuffle(), setThumbGeometry(), and assQuestion\setTitle().

        {
                global $ilDB;

                $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"]);
                        $this->setComment($data["description"]);
                        $this->setOriginalId($data["original_id"]);
                        $this->setNrOfTries($data['nr_of_tries']);
                        $this->setAuthor($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));
                        $this->setThumbGeometry($data["thumb_geometry"]);
                        $this->setElementHeight($data["element_height"]);
                        $this->setShuffle($data["shuffle"]);
                        $this->setEstimatedWorkingTime(substr($data["working_time"], 0, 2), substr($data["working_time"], 3, 2), substr($data["working_time"], 6, 2));
                        
                        try
                        {
                                $this->setAdditionalContentEditingMode($data['add_cont_edit_mode']);
                        }
                        catch(ilTestQuestionPoolException $e)
                        {
                        }
                }

                $termids = array();
                $result = $ilDB->queryF("SELECT * FROM qpl_a_mterm WHERE question_fi = %s ORDER BY term_id ASC",
                        array('integer'),
                        array($question_id)
                );
                include_once "./Modules/TestQuestionPool/classes/class.assAnswerMatchingTerm.php";
                $this->terms = array();
                if ($result->numRows() > 0)
                {
                        while ($data = $ilDB->fetchAssoc($result))
                        {
                                $term = new assAnswerMatchingTerm($data['term'], $data['picture'], $data['term_id']);
                                array_push($this->terms, $term);
                                $termids[$data['term_id']] = $term;
                        }
                }

                $definitionids = array();
                $result = $ilDB->queryF("SELECT * FROM qpl_a_mdef WHERE question_fi = %s ORDER BY def_id ASC",
                        array('integer'),
                        array($question_id)
                );
                include_once "./Modules/TestQuestionPool/classes/class.assAnswerMatchingDefinition.php";
                $this->definitions = array();
                if ($result->numRows() > 0)
                {
                        while ($data = $ilDB->fetchAssoc($result))
                        {
                                $definition = new assAnswerMatchingDefinition($data['definition'], $data['picture'], $data['morder']);
                                array_push($this->definitions, $definition);
                                $definitionids[$data['def_id']] = $definition;
                        }
                }

                $this->matchingpairs = array();
                $result = $ilDB->queryF("SELECT * FROM qpl_a_matching WHERE question_fi = %s ORDER BY answer_id",
                        array('integer'),
                        array($question_id)
                );
                include_once "./Modules/TestQuestionPool/classes/class.assAnswerMatchingPair.php";
                if ($result->numRows() > 0)
                {
                        while ($data = $ilDB->fetchAssoc($result))
                        {
                                array_push($this->matchingpairs, new assAnswerMatchingPair($termids[$data['term_fi']], $definitionids[$data['definition_fi']], $data['points']));
                        }
                }
                parent::loadFromDb($question_id);
        }

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rebuildThumbnails()

assMatchingQuestion::rebuildThumbnails

(

)

Rebuild the thumbnail images with a new thumbnail size.

Definition at line 1337 of file class.assMatchingQuestion.php.

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

Referenced by saveAnswerSpecificDataToDb().

        {
                foreach ($this->terms as $term)
                {
                        if (strlen($term->picture)) $this->generateThumbForFile($this->getImagePath(), $term->picture);
                }
                foreach ($this->definitions as $definition)
                {
                        if (strlen($definition->picture)) $this->generateThumbForFile($this->getImagePath(), $definition->picture);
                }
        }

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removeDefinitionImage()

assMatchingQuestion::removeDefinitionImage

(

$index

)

Definition at line 959 of file class.assMatchingQuestion.php.

References deleteImagefile().

        {
                $definition = $this->definitions[$index];
                if (is_object($definition))
                {
                        $this->deleteImagefile($definition->picture);
                        $definition->picture = null;
                }
        }

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removeTermImage()

assMatchingQuestion::removeTermImage

(

$index

)

Definition at line 949 of file class.assMatchingQuestion.php.

References deleteImagefile().

        {
                $term = $this->terms[$index];
                if (is_object($term))
                {
                        $this->deleteImagefile($term->picture);
                        $term->picture = null;
                }
        }

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reworkWorkingData()

assMatchingQuestion::reworkWorkingData (   $active_id,   $pass,   $obligationsAnswered  )

protected

Reworks the allready saved working data if neccessary.

protected

Parameters

integer	$active_id
integer	$pass
boolean	$obligationsAnswered

Definition at line 1125 of file class.assMatchingQuestion.php.

        {
                // nothing to rework!
        }

saveAdditionalQuestionDataToDb()

assMatchingQuestion::saveAdditionalQuestionDataToDb

(

)

Saves a record to the question types additional data table.

Returns

mixed

Implements ilObjQuestionScoringAdjustable.

Definition at line 195 of file class.assMatchingQuestion.php.

References getAdditionalTableName(), getElementHeight(), assQuestion\getId(), and getThumbGeometry().

Referenced by saveToDb().

        {
                global $ilDB;
                // save additional data
                $ilDB->manipulateF( "DELETE FROM " . $this->getAdditionalTableName() . " WHERE question_fi = %s",
                                                        array( "integer" ),
                                                        array( $this->getId() )
                );
                $ilDB->manipulateF( "INSERT INTO " . $this->getAdditionalTableName(
                                                                                                                                                                                                                ) . " (question_fi, shuffle, matching_type, thumb_geometry, element_height) VALUES (%s, %s, %s, %s, %s)",
                                                        array( "integer", "text", "text", "integer", "integer" ),
                                                        array(
                                                                $this->getId(),
                                                                $this->shuffle,
                                                                $this->matching_type,
                                                                $this->getThumbGeometry(),
                                                                ($this->getElementHeight() >= 20) ? $this->getElementHeight() : NULL
                                                        )
                );
        }

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saveAnswerSpecificDataToDb()

assMatchingQuestion::saveAnswerSpecificDataToDb

(

)

Saves the answer specific records into a question types answer table.

Returns

mixed

Implements ilObjAnswerScoringAdjustable.

Definition at line 132 of file class.assMatchingQuestion.php.

References assQuestion\getId(), getMatchingPairs(), and rebuildThumbnails().

Referenced by saveToDb().

        {
                global $ilDB;
                // delete old terms
                $ilDB->manipulateF( "DELETE FROM qpl_a_mterm WHERE question_fi = %s",
                                                        array( 'integer' ),
                                                        array( $this->getId() )
                );

                // delete old definitions
                $ilDB->manipulateF( "DELETE FROM qpl_a_mdef WHERE question_fi = %s",
                                                        array( 'integer' ),
                                                        array( $this->getId() )
                );

                $termids = array();
                // write terms
                foreach ($this->terms as $key => $term)
                {
                        $next_id = $ilDB->nextId( 'qpl_a_mterm' );
                        $ilDB->manipulateF( "INSERT INTO qpl_a_mterm (term_id, question_fi, picture, term) VALUES (%s, %s, %s, %s)",
                                                                array( 'integer', 'integer', 'text', 'text' ),
                                                                array( $next_id, $this->getId(), $term->picture, $term->text )
                        );
                        $termids[$term->identifier] = $next_id;
                }

                $definitionids = array();
                // write definitions
                foreach ($this->definitions as $key => $definition)
                {
                        $next_id = $ilDB->nextId( 'qpl_a_mdef' );
                        $ilDB->manipulateF( "INSERT INTO qpl_a_mdef (def_id, question_fi, picture, definition, morder) VALUES (%s, %s, %s, %s, %s)",
                                                                array( 'integer', 'integer', 'text', 'text', 'integer' ),
                                                                array( $next_id, $this->getId(
                                                                ), $definition->picture, $definition->text, $definition->identifier )
                        );
                        $definitionids[$definition->identifier] = $next_id;
                }

                $ilDB->manipulateF( "DELETE FROM qpl_a_matching WHERE question_fi = %s",
                                                        array( 'integer' ),
                                                        array( $this->getId() )
                );
                $matchingpairs = $this->getMatchingPairs();
                foreach ($matchingpairs as $key => $pair)
                {
                        $next_id = $ilDB->nextId( 'qpl_a_matching' );
                        $ilDB->manipulateF( "INSERT INTO qpl_a_matching (answer_id, question_fi, points, term_fi, definition_fi) VALUES (%s, %s, %s, %s, %s)",
                                                                array( 'integer', 'integer', 'float', 'integer', 'integer' ),
                                                                array(
                                                                        $next_id,
                                                                        $this->getId(),
                                                                        $pair->points,
                                                                        $termids[$pair->term->identifier],
                                                                        $definitionids[$pair->definition->identifier]
                                                                )
                        );
                }

                $this->rebuildThumbnails();
        }

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saveToDb()

assMatchingQuestion::saveToDb

(

$original_id = ""

)

Saves a assMatchingQuestion object to a database.

Parameters

string

$original_id

Definition at line 120 of file class.assMatchingQuestion.php.

References assQuestion\$original_id, saveAdditionalQuestionDataToDb(), saveAnswerSpecificDataToDb(), and assQuestion\saveQuestionDataToDb().

        {
                global $ilDB;

                $this->saveQuestionDataToDb($original_id);
                $this->saveAdditionalQuestionDataToDb();
                $this->saveAnswerSpecificDataToDb( $ilDB );


                parent::saveToDb($original_id);
        }

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saveWorkingData()

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

Saves the learners input of the question to the database.

public

Parameters

integer	$active_id	Active id of the user
integer	$pass	Test pass

Returns

boolean $status

Definition at line 1057 of file class.assMatchingQuestion.php.

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

        {
                global $ilDB;
                global $ilUser;
                $saveWorkingDataResult = $this->checkSaveData();
                $entered_values = 0;
                if ($saveWorkingDataResult)
                {
                        if (is_null($pass))
                        {
                                include_once "./Modules/Test/classes/class.ilObjTest.php";
                                $pass = ilObjTest::_getPass($active_id);
                        }
                        
                        $this->getProcessLocker()->requestUserSolutionUpdateLock();

                        $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 ($_POST['matching'][$this->getId()] as $definition => $term)
                        {
                                $entered_values++;
                                $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", $term),
                                        "value2" => array("clob", $definition),
                                        "pass" => array("integer", $pass),
                                        "tstamp" => array("integer", time())
                                ));
                        }

                        $this->getProcessLocker()->releaseUserSolutionUpdateLock();
                        
                        $saveWorkingDataResult = true;
                }
                if ($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());
                        }
                }

                return $saveWorkingDataResult;
        }

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setElementHeight()

assMatchingQuestion::setElementHeight

(

$a_height

)

Set the minimum element height.

Parameters

integer

$a_height

Height

Definition at line 1329 of file class.assMatchingQuestion.php.

Referenced by loadFromDb().

        {
                $this->element_height = ($a_height < 20) ? "" : $a_height;
        }

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setExportDetailsXLS()

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

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

Parameters

object	$worksheet	Reference to the parent excel worksheet
object	$startrow	Startrow of the output in the excel worksheet
object	$active_id	Active id of the participant
object	$pass	Test pass
object	$format_title	Excel title format
object	$format_bold	Excel bold format
array	$eval_data	Cumulated evaluation data public

Definition at line 1241 of file class.assMatchingQuestion.php.

References $pass, ilExcelUtils\_convert_text(), assQuestion\getImagePath(), getMatchingPairs(), assQuestion\getSolutionValues(), and assQuestion\getTitle().

        {
                include_once ("./Services/Excel/classes/class.ilExcelUtils.php");
                $solutions = $this->getSolutionValues($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);
                $imagepath = $this->getImagePath();
                $i = 1;
                foreach ($solutions as $solution)
                {
                        $matches_written = FALSE;
                        foreach ($this->getMatchingPairs() as $idx => $pair)
                        {
                                if (!$matches_written) $worksheet->writeString($startrow + $i, 1, ilExcelUtils::_convert_text($this->lng->txt("matches")));
                                $matches_written = TRUE;
                                if ($pair->definition->identifier == $solution["value2"])
                                {
                                        if (strlen($pair->definition->text))
                                        {
                                                $worksheet->writeString($startrow + $i, 0, ilExcelUtils::_convert_text($pair->definition->text));
                                        }
                                        else
                                        {
                                                $worksheet->writeString($startrow + $i, 0, ilExcelUtils::_convert_text($pair->definition->picture));
                                        }
                                }
                                if ($pair->term->identifier == $solution["value1"])
                                {
                                        if (strlen($pair->term->text))
                                        {
                                                $worksheet->writeString($startrow + $i, 2, ilExcelUtils::_convert_text($pair->term->text));
                                        }
                                        else
                                        {
                                                $worksheet->writeString($startrow + $i, 2, ilExcelUtils::_convert_text($pair->term->picture));
                                        }
                                }
                        }
                        $i++;
                }
                return $startrow + $i + 1;
        }

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setImageFile()

assMatchingQuestion::setImageFile	(		$image_tempfilename,
			$image_filename,
			$previous_filename = ''
	)

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

Parameters

string	$image_filename	Name of the original image file
string	$image_tempfilename	Name of the temporary uploaded image file

Returns

integer An errorcode if the image upload fails, 0 otherwise public

Definition at line 992 of file class.assMatchingQuestion.php.

References $result, ilUtil\convertImage(), deleteImagefile(), assQuestion\getImagePath(), getThumbPrefix(), ilUtil\makeDirParents(), and ilUtil\moveUploadedFile().

        {
                $result = TRUE;
                if (strlen($image_tempfilename))
                {
                        $image_filename = str_replace(" ", "_", $image_filename);
                        $imagepath = $this->getImagePath();
                        if (!file_exists($imagepath))
                        {
                                ilUtil::makeDirParents($imagepath);
                        }
                        $savename = $image_filename;
                        if (!ilUtil::moveUploadedFile($image_tempfilename, $savename, $imagepath.$savename))
                        {
                                $result = FALSE;
                        }
                        else
                        {
                                // create thumbnail file
                                $thumbpath = $imagepath . $this->getThumbPrefix() . $savename;
                                ilUtil::convertImage($imagepath.$savename, $thumbpath, "JPEG", $this->getThumbGeometry());
                        }
                        if ($result && (strcmp($image_filename, $previous_filename) != 0) && (strlen($previous_filename)))
                        {
                                $this->deleteImagefile($previous_filename);
                        }
                }
                return $result;
        }

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setShuffle()

assMatchingQuestion::setShuffle

(

$shuffle

)

Sets the shuffle flag.

Parameters

integer

$shuffle

A flag indicating whether the answers are shuffled or not

See also

$shuffle

Definition at line 1156 of file class.assMatchingQuestion.php.

References assQuestion\$shuffle.

Referenced by loadFromDb().

        {
                switch ($shuffle)
                {
                        case 0:
                        case 1:
                        case 2:
                        case 3:
                                $this->shuffle = $shuffle;
                                break;
                        default:
                                $this->shuffle = 1;
                                break;
                }
        }

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setTerm()

assMatchingQuestion::setTerm	(		$term,
			$index
	)

Sets a specific term.

Parameters

string	$term	The text of the term
string	$index	The index of the term

See also

$terms

Definition at line 858 of file class.assMatchingQuestion.php.

        {
                $this->terms[$index] = $term;
        }

setThumbGeometry()

assMatchingQuestion::setThumbGeometry

(

$a_geometry

)

Set the thumbnail geometry.

Parameters

integer

$a_geometry

Geometry

Definition at line 1309 of file class.assMatchingQuestion.php.

Referenced by loadFromDb().

        {
                $this->thumb_geometry = ($a_geometry < 1) ? 100 : $a_geometry;
        }

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supportsJavascriptOutput()

assMatchingQuestion::supportsJavascriptOutput

(

)

Returns true if the question type supports JavaScript output.

Returns

boolean TRUE if the question type supports JavaScript output, FALSE otherwise

Definition at line 1224 of file class.assMatchingQuestion.php.

        {
                return TRUE;
        }

toJSON()

assMatchingQuestion::toJSON

(

)

Returns a JSON representation of the question TODO.

Definition at line 1409 of file class.assMatchingQuestion.php.

References $mobs, assQuestion\$points, $result, $terms, ilObjMediaObject\_getMobsOfObject(), assQuestion\formatSAQuestion(), getDefinitions(), assQuestion\getId(), getMatchingPairs(), assQuestion\getNrOfTries(), assQuestion\getQuestion(), getQuestionType(), getTerms(), 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'] =  $this->formatSAQuestion($this->getQuestion());
                $result['nr_of_tries'] = (int) $this->getNrOfTries();
                $result['shuffle'] = true;
                $result['feedback'] = array(
                        "onenotcorrect" => $this->feedbackOBJ->getGenericFeedbackTestPresentation($this->getId(), false),
                        "allcorrect" => $this->feedbackOBJ->getGenericFeedbackTestPresentation($this->getId(), true)
                );
                                
                $terms = array("" => array("id"=>"-1", 
                        "term"=>$this->lng->txt("please_select")));
                foreach ($this->getTerms() as $term)
                {
                        $terms[(int)$term->identifier] = array(
                                "term" => $term->text,
                                "id" =>(int)$term->identifier
                        );
                }
                // $terms = $this->pcArrayShuffle($terms);                              

                // alex 9.9.2010 as a fix for bug 6513 I added the question id
                // to the "def_id" in the array. The $pair->definition->identifier is not
                // unique, since it gets it value from the morder table field
                // this value is not changed, when a question is copied.
                // thus copying the same question on a page results in problems
                // when the second one (the copy) is answered.

                $pairs = array();
                foreach ($this->getDefinitions() as $def)
                {
                        array_push($pairs, array(
                                "definition" => (string) $def->text,
                                "def_id" => (int) $this->getId().$def->identifier,
                                "terms" => $terms
                        ));
                }
                $result['pairs'] = $pairs;
                
                // #10353
                $match = $points = array();
                foreach ($this->getMatchingPairs() as $pair)
                {                       
                        $pid = $pair->definition->identifier;
                        
                        // we only need pairs with max. points for def-id
                        if(!isset($match[$pid]) || $match[$pid]["points"] < $pair->points)
                        {                               
                                $match[$pid] = array(
                                        "term_id" => (int) $pair->term->identifier,
                                        "def_id" => (int) $this->getId().$pair->definition->identifier,
                                        "points" => (int) $pair->points
                                );                                                                      
                        }
                }               
                $result['match'] = array_values($match);
                        
                $mobs = ilObjMediaObject::_getMobsOfObject("qpl:html", $this->getId());
                $result['mobs'] = $mobs;

                return json_encode($result);
        }

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Field Documentation

$definitions

assMatchingQuestion::$definitions

protected

Definition at line 49 of file class.assMatchingQuestion.php.

Referenced by getDefinitions().

$element_height

assMatchingQuestion::$element_height

Definition at line 63 of file class.assMatchingQuestion.php.

Referenced by getElementHeight().

$matching_type

assMatchingQuestion::$matching_type

Definition at line 41 of file class.assMatchingQuestion.php.

Referenced by __construct().

$matchingpairs

assMatchingQuestion::$matchingpairs

Definition at line 31 of file class.assMatchingQuestion.php.

Referenced by getMatchingPairs().

$terms

assMatchingQuestion::$terms

protected

Definition at line 48 of file class.assMatchingQuestion.php.

Referenced by getTerms(), and toJSON().

$thumb_geometry

assMatchingQuestion::$thumb_geometry = 100

Definition at line 56 of file class.assMatchingQuestion.php.

Referenced by getThumbGeometry().

---

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

• Modules/TestQuestionPool/classes/class.assMatchingQuestion.php