assSingleChoice Class Reference

Class for single choice questions. More...

Inheritance diagram for assSingleChoice:

Collaboration diagram for assSingleChoice:

Public Member Functions
	__construct ( $title="", $comment="", $author="", $owner=-1, $question="", $output_type=OUTPUT_ORDER)
	assSingleChoice constructor More...
	isComplete ()
	Returns true, if a single choice question is complete for use. More...
	getThumbPrefix ()
	loadFromDb ($question_id)
	Loads a assSingleChoice object from a database. More...
	duplicate ($for_test=true, $title="", $author="", $owner="", $testObjId=null)
	Duplicates an assSingleChoiceQuestion. More...
	copyObject ($target_questionpool_id, $title="")
	Copies an assSingleChoice object. More...
	createNewOriginalFromThisDuplicate ($targetParentId, $targetQuestionTitle="")
	getOutputType ()
	Gets the single choice output type which is either OUTPUT_ORDER (=0) or OUTPUT_RANDOM (=1). More...
	setOutputType ($output_type=OUTPUT_ORDER)
	Sets the output type of the assSingleChoice object. More...
	addAnswer ( $answertext="", $points=0.0, $order=0, $answerimage="")
	Adds a possible answer for a single choice question. More...
	getAnswerCount ()
	Returns the number of answers. More...
	getAnswer ($index=0)
	Returns an answer with a given index. More...
	deleteAnswer ($index=0)
	Deletes an answer with a given index. More...
	flushAnswers ()
	Deletes all answers. More...
	getMaximumPoints ()
	Returns the maximum points, a learner can reach answering the question. More...
	calculateReachedPoints ($active_id, $pass=NULL, $returndetails=FALSE)
	Returns the points, a learner has reached answering the question. More...
	calculateReachedPointsFromPreviewSession (ilAssQuestionPreviewSession $previewSession)
	saveWorkingData ($active_id, $pass=NULL)
	Saves the learners input of the question to the database. More...
	getQuestionType ()
	Returns the question type of the question. More...
	getAdditionalTableName ()
	Returns the name of the additional question data table in the database. More...
	getAnswerTableName ()
	Returns the name of the answer table in the database. More...
	setImageFile ($image_filename, $image_tempfilename="")
	Sets the image file and uploads the image to the object's image directory. More...
	deleteImage ($image_filename)
	Deletes an image file. More...
	duplicateImages ($question_id, $objectId=null)
	copyImages ($question_id, $source_questionpool)
	getRTETextWithMediaObjects ()
	Collects all text in the question which could contain media objects which were created with the Rich Text Editor. More...
&	getAnswers ()
	Returns a reference to the answers array. More...
	setExportDetailsXLS (&$worksheet, $startrow, $active_id, $pass, &$format_title, &$format_bold)
	Creates an Excel worksheet for the detailed cumulated results of this question. More...
	getThumbSize ()
	setThumbSize ($a_size)
	toJSON ()
	Returns a JSON representation of the question. More...
	removeAnswerImage ($index)
	createRandomSolution ($active_id, $pass)
	getMultilineAnswerSetting ()
	setMultilineAnswerSetting ($a_setting=0)
	setSpecificFeedbackSetting ($a_feedback_setting)
	Sets the feedback settings in effect for the question. More...
	getSpecificFeedbackSetting ()
	Gets the current feedback settings in effect for the question. More...
	isAnswered ($active_id, $pass)
	returns boolean wether the question is answered during test pass or not More...
	getOperators ($expression)
	Get all available operations for a specific question. More...
	getExpressionTypes ()
	Get all available expression types for a specific question. More...
	getAvailableAnswerOptions ($index=null)
	If index is null, the function returns an array with all anwser options Else it returns the specific answer option. 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, $sec=0)
	Sets the estimated working time of a question from given hour, minute and second. More...
	setEstimatedWorkingTimeFromDurationString ($durationString)
	Sets the estimated working time of a question from a given datetime string. 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...
	persistPreviewState (ilAssQuestionPreviewSession $previewSession)
	persists the preview state for current user and question More...
	saveWorkingData ($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, $object_id=null)
	Returns the image path for web accessable images of a question. More...
	buildImagePath ($questionId, $parentObjectId)
	getFlashPath ()
	Returns the image path for web accessable flash files of a question. More...
	getJavaPathWeb ()
	Returns the web image path for web accessable java applets of a question. More...
	getSuggestedSolutionPathWeb ()
	Returns the web path for a suggested solution. More...
	getImagePathWeb ()
	Returns the web image path for web accessable images of a question. More...
	getFlashPathWeb ()
	Returns the web image path for web accessable flash applications of a question. More...
&	getSolutionValues ($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 $this inside this method More...
	_getTitle ($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 ()
	fixSvgToPng ($imageFilenameContainingString)
	fixUnavailableSkinImageSources ($html)
	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...
	calculateReachedPointsFromPreviewSession (ilAssQuestionPreviewSession $previewSession)
	isPreviewSolutionCorrect (ilAssQuestionPreviewSession $previewSession)
	adjustReachedPointsByScoringOptions ($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, $unique=false)
	_setReachedPoints ($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...
	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 $listener)
	getQuestionChangeListeners ()
	getHtmlUserSolutionPurifier ()
	getHtmlQuestionContentPurifier ()
	setLastChange ($lastChange)
	getLastChange ()
	setStep ($step)
	getStep ()
	toJSON ()
	duplicate ($for_test=true, $title="", $author="", $owner="", $testObjId=null)
Public Member Functions inherited from ilObjQuestionScoringAdjustable
	saveAdditionalQuestionDataToDb ()
	Saves a record to the question types additional data table. More...
Public Member Functions inherited from ilObjAnswerScoringAdjustable
	saveAnswerSpecificDataToDb ()
	Saves the answer specific records into a question types answer table. More...
Public Member Functions inherited from iQuestionCondition
	getUserQuestionResult ($active_id, $pass)
	Get the user solution for a question by active_id and the test pass. More...

Static Public Member Functions
static	isObligationPossible ($questionId)
	returns boolean wether it is possible to set this question type as obligatory or not considering the current question configuration More...
Static Public Member Functions inherited from assQuestion
static	isAllowedImageMimeType ($mimeType)
static	fetchMimeTypeIdentifier ($contentTypeString)
static	getAllowedFileExtensionsForMimeType ($mimeType)
static	isAllowedImageFileExtension ($mimeType, $fileExtension)
static	getAllowedImageFileExtensions ()
static	_getSuggestedSolutionCount ($question_id)
	Returns the number of suggested solutions associated with a question. More...
static	_getSuggestedSolutionOutput ($question_id)
	Returns the output of the suggested solution. More...
static	_getTotalRightAnswers ($a_q_id)
	get number of answers for question id (static) note: do not use $this inside this method More...
static	isFileAvailable ($file)
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 ($questionId)
	returns boolean wether it is possible to set this question type as obligatory or not considering the current question configuration More...
static	setResultGateway ($resultGateway)
static	getResultGateway ()
static	sumTimesInISO8601FormatH_i_s_Extended ($time1, $time2)
static	convertISO8601FormatH_i_s_ExtendedToSeconds ($time)

Data Fields
	$answers
	$output_type
Data Fields inherited from assQuestion
const	IMG_MIME_TYPE_JPG = 'image/jpeg'
const	IMG_MIME_TYPE_PNG = 'image/png'
const	IMG_MIME_TYPE_GIF = 'image/gif'
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 = 0
	$questionActionCmd = 'handleQuestionAction'
Data Fields inherited from iQuestionCondition
const	StringResultExpression = '~TEXT~'
const	PercentageResultExpression = '%n%'
const	NumericResultExpression = '#n#'
const	MatchingResultExpression = ';n:m;'
const	OrderingResultExpression = '$n,m,o,p$'
const	NumberOfResultExpression = '+n+'
const	ExclusiveResultExpression = '*n,m,o,p*'
const	EmptyAnswerExpression = "?"

Protected Member Functions
	rebuildThumbnails ()
	generateThumbForFile ($path, $file)
	savePreviewData (ilAssQuestionPreviewSession $previewSession)
	reworkWorkingData ($active_id, $pass, $obligationsAnswered)
	Reworks the allready saved working data if neccessary. More...
	syncImages ()
	Sync images of a MC question on synchronisation with the original question. More...
	afterSyncWithOriginal ($origQuestionId, $dupQuestionId, $origParentObjId, $dupParentObjId)
	{} More...
Protected Member Functions inherited from assQuestion
	reworkWorkingData ($active_id, $pass, $obligationsAnswered)
	Reworks the allready saved working data if neccessary. More...
	savePreviewData (ilAssQuestionPreviewSession $previewSession)
	deletePageOfQuestion ($question_id)
	Deletes the page object of a question with a given ID. More...
	onDuplicate ($originalParentId, $originalQuestionId, $duplicateParentId, $duplicateQuestionId)
	Will be called when a question is duplicated (inside a question pool or for insertion in a test) More...
	beforeSyncWithOriginal ($origQuestionId, $dupQuestionId, $origParentObjId, $dupParentObjId)
	afterSyncWithOriginal ($origQuestionId, $dupQuestionId, $origParentObjId, $dupParentObjId)
	onCopy ($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, $source_question_id)
	getRTETextWithMediaObjects ()
	Collects all text in the question which could contain media objects which were created with the Rich Text Editor. More...
	duplicateQuestionHints ($originalQuestionId, $duplicateQuestionId)
	buildQuestionDataQuery ()
	getSelfAssessmentFormatter ()

Protected Attributes
	$thumb_size
	$feedback_setting
Protected Attributes inherited from assQuestion
	$id
	$title
	$comment
	$owner
	$author
	$question
	$points
	$est_working_time
	$shuffle
	$test_id
	$obj_id
	$ilias
	$tpl
	$lng
	$db
	$outputType
	$suggested_solutions
	$original_id
	$page
	$external_id = ''
	$questionChangeListeners = array()
	$processLocker
	$step = null
	$lastChange

Additional Inherited Members
Static Protected Member Functions inherited from assQuestion
static	getNumExistingSolutionRecords ($activeId, $pass, $questionId)
	returns the number of existing solution records for the given test active / pass and given question id More...
Static Protected Attributes inherited from assQuestion
static	$allowedFileExtensionsByMimeType
static	$allowedCharsetsByMimeType
static	$imageSourceFixReplaceMap

Detailed Description

Class for single choice questions.

assSingleChoice is a class for single 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

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 24 of file class.assSingleChoice.php.

Constructor & Destructor Documentation

__construct()

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

assSingleChoice constructor

The constructor takes possible arguments an creates an instance of the assSingleChoice 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 single choice question
int | string	$output_type	The output order of the single choice answers

See also

assQuestion:assQuestion()

Definition at line 74 of file class.assSingleChoice.php.

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

        {
                parent::__construct($title, $comment, $author, $owner, $question);
                $this->thumb_size = 150;
                $this->output_type = $output_type;
                $this->answers = array();
                $this->shuffle = 1;
                $this->feedback_setting = 2;
        }

Member Function Documentation

addAnswer()

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

Adds a possible answer for a single choice question.

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

Parameters

string	$answertext	The answer text
double	$points	The points for selecting the answer (even negative points can be used)
boolean	$state	Defines the answer as correct (TRUE) or incorrect (FALSE)
integer	$order	A possible display order of the answer
double	$points	The points for not selecting the answer (even negative points can be used) public

See also

$answers

ASS_AnswerBinaryStateImage

Definition at line 438 of file class.assSingleChoice.php.

References $changed, and assQuestion\$points.

        {
                include_once "./Modules/TestQuestionPool/classes/class.assAnswerBinaryStateImage.php";
                if (array_key_exists($order, $this->answers))
                {
                        // insert answer
                        $answer = new ASS_AnswerBinaryStateImage($answertext, $points, $order, 1, $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
                        $answer = new ASS_AnswerBinaryStateImage($answertext, $points, count($this->answers), 1, $answerimage);
                        array_push($this->answers, $answer);
                }
        }

afterSyncWithOriginal()

assSingleChoice::afterSyncWithOriginal (   $origQuestionId,   $dupQuestionId,   $origParentObjId,   $dupParentObjId  )

protected

{}

Definition at line 1295 of file class.assSingleChoice.php.

References assQuestion\buildImagePath(), ilUtil\delDir(), ilUtil\makeDirParents(), and ilUtil\rCopy().

        {
                parent::afterSyncWithOriginal($origQuestionId, $dupQuestionId, $origParentObjId, $dupParentObjId);

                $origImagePath = $this->buildImagePath($origQuestionId, $origParentObjId);
                $dupImagePath  = $this->buildImagePath($dupQuestionId, $dupParentObjId);

                ilUtil::delDir($origImagePath);
                if(is_dir($dupImagePath))
                {
                        ilUtil::makeDirParents($origImagePath);
                        ilUtil::rCopy($dupImagePath, $origImagePath);
                }
        }

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calculateReachedPoints()

assSingleChoice::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 568 of file class.assSingleChoice.php.

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

Referenced by getExpressionTypes().

        {
                if( $returndetails )
                {
                        throw new ilTestException('return details not implemented for '.__METHOD__);
                }
                
                global $ilDB;
                
                $found_values = array();
                if (is_null($pass))
                {
                        $pass = $this->getSolutionMaxPass($active_id);
                }
                $result = $this->getCurrentSolutionResultSet($active_id, $pass);
                while ($data = $ilDB->fetchAssoc($result))
                {
                        if (strcmp($data["value1"], "") != 0)
                        {
                                array_push($found_values, $data["value1"]);
                        }
                }
                $points = 0;
                foreach ($this->answers as $key => $answer)
                {
                        if (count($found_values) > 0) 
                        {
                                if (in_array($key, $found_values))
                                {
                                        $points += $answer->getPoints();
                                }
                        }
                }

                return $points;
        }

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calculateReachedPointsFromPreviewSession()

assSingleChoice::calculateReachedPointsFromPreviewSession

(

ilAssQuestionPreviewSession

$previewSession

)

Definition at line 605 of file class.assSingleChoice.php.

References ilAssQuestionPreviewSession\getParticipantsSolution().

        {
                foreach ($this->answers as $key => $answer)
                {
                        if( $key == $previewSession->getParticipantsSolution() )
                        {
                                return $answer->getPoints();
                        }
                }
                
                return 0;
        }

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copyImages()

assSingleChoice::copyImages	(		$question_id,
			$source_questionpool
	)

Definition at line 907 of file class.assSingleChoice.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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copyObject()

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

Copies an assSingleChoice object.

public

Definition at line 333 of file class.assSingleChoice.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()

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

Definition at line 364 of file class.assSingleChoice.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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createRandomSolution()

assSingleChoice::createRandomSolution	(		$active_id,
			$pass
	)

Definition at line 1115 of file class.assSingleChoice.php.

References $_POST, $pass, and saveWorkingData().

        {
                $value = rand(0, count($this->answers)-1);
                $_POST["multiple_choice_result"] = (strlen($value)) ? (string)$value : '0';
                $this->saveWorkingData($active_id, $pass);
        }

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deleteAnswer()

assSingleChoice::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

$index

A nonnegative index of the n-th answer public

See also

$answers

Definition at line 510 of file class.assSingleChoice.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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deleteImage()

assSingleChoice::deleteImage

(

$image_filename

)

Deletes an image file.

Parameters

string

$image_filename

Name of the image file to delete private

Definition at line 862 of file class.assSingleChoice.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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duplicate()

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

Duplicates an assSingleChoiceQuestion.

public

Definition at line 272 of file class.assSingleChoice.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 images
                $clone->duplicateImages($this_id, $thisObjId);
                
                $clone->onDuplicate($thisObjId, $this_id, $clone->getObjId(), $clone->getId());

                return $clone->id;
        }

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duplicateImages()

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

Definition at line 870 of file class.assSingleChoice.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->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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flushAnswers()

assSingleChoice::flushAnswers

(

)

Deletes all answers.

public

See also

$answers

Definition at line 534 of file class.assSingleChoice.php.

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

generateThumbForFile()

assSingleChoice::generateThumbForFile (   $path,   $file  )

protected

Definition at line 172 of file class.assSingleChoice.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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getAdditionalTableName()

assSingleChoice::getAdditionalTableName

(

)

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

Returns

string The additional table name public

Definition at line 794 of file class.assSingleChoice.php.

Referenced by isComplete(), loadFromDb(), and savePreviewData().

        {
                return "qpl_qst_sc";
        }

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getAnswer()

assSingleChoice::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

$index

A nonnegative index of the n-th answer

Returns

object ASS_AnswerBinaryStateImage-Object containing the answer public

See also

$answers

Definition at line 493 of file class.assSingleChoice.php.

Referenced by getAvailableAnswerOptions().

        {
                if ($index < 0) return NULL;
                if (count($this->answers) < 1) return NULL;
                if ($index >= count($this->answers)) return NULL;

                return $this->answers[$index];
        }

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getAnswerCount()

assSingleChoice::getAnswerCount

(

)

Returns the number of answers.

Returns

integer The number of answers of the multiple choice question public

See also

$answers

Definition at line 479 of file class.assSingleChoice.php.

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

getAnswers()

& assSingleChoice::getAnswers

(

)

Returns a reference to the answers array.

Definition at line 1001 of file class.assSingleChoice.php.

References $answers.

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

        {
                return $this->answers;
        }

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getAnswerTableName()

assSingleChoice::getAnswerTableName

(

)

Returns the name of the answer table in the database.

Returns

string The answer table name public

Definition at line 805 of file class.assSingleChoice.php.

        {
                return "qpl_a_sc";
        }

getAvailableAnswerOptions()

assSingleChoice::getAvailableAnswerOptions

(

$index = null

)

If index is null, the function returns an array with all anwser options Else it returns the specific answer option.

Parameters

null | int

$index

Returns

array|ASS_AnswerSimple

Implements iQuestionCondition.

Definition at line 1280 of file class.assSingleChoice.php.

References getAnswer(), and getAnswers().

        {
                if($index !== null)
                {
                        return $this->getAnswer($index);
                }
                else
                {
                        return $this->getAnswers();
                }
        }

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getExpressionTypes()

assSingleChoice::getExpressionTypes

(

)

Get all available expression types for a specific question.

Returns

array

Implements iQuestionCondition.

Definition at line 1225 of file class.assSingleChoice.php.

References $data, $ilDB, $pass, assQuestion\$points, $result, $row, calculateReachedPoints(), iQuestionCondition\EmptyAnswerExpression, assQuestion\getId(), getMaximumPoints(), iQuestionCondition\getUserQuestionResult(), iQuestionCondition\NumberOfResultExpression, and iQuestionCondition\PercentageResultExpression.

        {
                return array(
                        iQuestionCondition::PercentageResultExpression,
                        iQuestionCondition::NumberOfResultExpression,
                        iQuestionCondition::EmptyAnswerExpression,
                );
        }

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getMaximumPoints()

assSingleChoice::getMaximumPoints

(

)

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

public

See also

$points

Definition at line 545 of file class.assSingleChoice.php.

References assQuestion\$points.

Referenced by getExpressionTypes(), and isComplete().

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

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getMultilineAnswerSetting()

assSingleChoice::getMultilineAnswerSetting

(

)

Definition at line 1122 of file class.assSingleChoice.php.

References $ilUser.

        {
                global $ilUser;

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

getOperators()

assSingleChoice::getOperators

(

$expression

)

Get all available operations for a specific question.

Parameters

string

$expression

Implements iQuestionCondition.

Definition at line 1215 of file class.assSingleChoice.php.

References ilOperatorsExpressionMapping\getOperatorsByExpression().

        {
                require_once "./Modules/TestQuestionPool/classes/class.ilOperatorsExpressionMapping.php";
                return ilOperatorsExpressionMapping::getOperatorsByExpression($expression);
        }

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getOutputType()

assSingleChoice::getOutputType

(

)

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

Returns

integer The output type of the assSingleChoice object public

See also

$output_type

Definition at line 408 of file class.assSingleChoice.php.

References $output_type.

        {
                return $this->output_type;
        }

getQuestionType()

assSingleChoice::getQuestionType

(

)

Returns the question type of the question.

Returns

integer The question type of the question public

Definition at line 783 of file class.assSingleChoice.php.

Referenced by toJSON().

        {
                return "assSingleChoice";
        }

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getRTETextWithMediaObjects()

assSingleChoice::getRTETextWithMediaObjects

(

)

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

Definition at line 986 of file class.assSingleChoice.php.

References assQuestion\getId().

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

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getSpecificFeedbackSetting()

assSingleChoice::getSpecificFeedbackSetting

(

)

Gets the current feedback settings in effect for the question.

Values are: 1 - Feedback is shown for all answer options. 2 - Feedback is shown for all checked/selected options. 3 - Feedback is shown for all correct options.

Returns

integer

Definition at line 1163 of file class.assSingleChoice.php.

References $feedback_setting.

        {
                if ($this->feedback_setting)
                {
                        return $this->feedback_setting;
                }
                else
                {
                        return 1;
                }
        }

getThumbPrefix()

assSingleChoice::getThumbPrefix

(

)

Definition at line 167 of file class.assSingleChoice.php.

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

        {
                return "thumb.";
        }

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getThumbSize()

assSingleChoice::getThumbSize

(

)

Definition at line 1045 of file class.assSingleChoice.php.

References $thumb_size.

Referenced by generateThumbForFile(), isComplete(), rebuildThumbnails(), savePreviewData(), setImageFile(), and toJSON().

        {
                return $this->thumb_size;
        }

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isAnswered()

assSingleChoice::isAnswered	(		$active_id,
			$pass
	)

returns boolean wether the question is answered during test pass or not

(overwrites method in class assQuestion)

Parameters

integer	$active_id
integer	$pass

Returns

boolean $answered

Definition at line 1185 of file class.assSingleChoice.php.

References $pass, assQuestion\getId(), and assQuestion\getNumExistingSolutionRecords().

        {
                $numExistingSolutionRecords = assQuestion::getNumExistingSolutionRecords($active_id, $pass, $this->getId());

                return $numExistingSolutionRecords > 0;
        }

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isComplete()

assSingleChoice::isComplete

(

)

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

Returns

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

Definition at line 97 of file class.assSingleChoice.php.

References $data, $ilDB, assQuestion\$original_id, $result, getAdditionalTableName(), assQuestion\getId(), getMaximumPoints(), getThumbSize(), ilObjQuestionScoringAdjustable\saveAdditionalQuestionDataToDb(), ilObjAnswerScoringAdjustable\saveAnswerSpecificDataToDb(), assQuestion\saveQuestionDataToDb(), and assQuestion\saveToDb().

        {
                if (strlen($this->title) and ($this->author) and ($this->question) and (count($this->answers)) and ($this->getMaximumPoints() > 0))
                {
                        foreach ($this->answers as $answer)
                        {
                                if ((strlen($answer->getAnswertext()) == 0) && (strlen($answer->getImage()) == 0)) return false;
                        }
                        return true;
                }
                else
                {
                        return false;
                }
        }

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isObligationPossible()

static assSingleChoice::isObligationPossible (   $questionId )

static

returns boolean wether it is possible to set this question type as obligatory or not considering the current question configuration

(overwrites method in class assQuestion)

Parameters

integer

$questionId

Returns

boolean $obligationPossible

Definition at line 1202 of file class.assSingleChoice.php.

        {
                return true;
        }

loadFromDb()

assSingleChoice::loadFromDb

(

$question_id

)

Loads a assSingleChoice 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 public

Definition at line 203 of file class.assSingleChoice.php.

References $data, $ilDB, $result, assQuestion\$shuffle, ilRTE\_replaceMediaObjectImageSrc(), getAdditionalTableName(), assQuestion\getImagePath(), assQuestion\setAdditionalContentEditingMode(), 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'];
                        $this->feedback_setting = $data['feedback_setting'];

                        try
                        {
                                $this->setAdditionalContentEditingMode($data['add_cont_edit_mode']);
                        }
                        catch(ilTestQuestionPoolException $e)
                        {
                        }
                }

                $result = $ilDB->queryF("SELECT * FROM qpl_a_sc WHERE question_fi = %s ORDER BY aorder ASC",
                        array('integer'),
                        array($question_id)
                );
                include_once "./Modules/TestQuestionPool/classes/class.assAnswerBinaryStateImage.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($this->answers, new ASS_AnswerBinaryStateImage($data["answertext"], $data["points"], $data["aorder"], 1, $data["imagefile"]));
                        }
                }

                parent::loadFromDb($question_id);
        }

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rebuildThumbnails()

assSingleChoice::rebuildThumbnails ( )

protected

Definition at line 153 of file class.assSingleChoice.php.

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

Referenced by savePreviewData().

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

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removeAnswerImage()

assSingleChoice::removeAnswerImage

(

$index

)

Definition at line 1105 of file class.assSingleChoice.php.

References deleteImage().

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

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reworkWorkingData()

assSingleChoice::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 772 of file class.assSingleChoice.php.

        {
                // nothing to rework!
        }

savePreviewData()

assSingleChoice::savePreviewData ( ilAssQuestionPreviewSession  $previewSession )

protected

Definition at line 695 of file class.assSingleChoice.php.

References $_POST, $ilDB, ilRTE\_replaceMediaObjectImageSrc(), ilUtil\delDir(), getAdditionalTableName(), assQuestion\getId(), assQuestion\getImagePath(), assQuestion\getShuffle(), getThumbSize(), rebuildThumbnails(), ilObjQuestionScoringAdjustable\saveAdditionalQuestionDataToDb(), ilObjAnswerScoringAdjustable\saveAnswerSpecificDataToDb(), and ilAssQuestionPreviewSession\setParticipantsSolution().

        {
                if( strlen($_POST['multiple_choice_result'.$this->getId().'ID']) )
                {
                        $previewSession->setParticipantsSolution($_POST['multiple_choice_result'.$this->getId().'ID']);
                }
                else
                {
                        $previewSession->setParticipantsSolution(null);
                }
        }

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saveWorkingData()

assSingleChoice::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 626 of file class.assSingleChoice.php.

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

Referenced by createRandomSolution().

        {
                global $ilDB;
                global $ilUser;

                if (is_null($pass))
                {
                        include_once "./Modules/Test/classes/class.ilObjTest.php";
                        $pass = ilObjTest::_getPass($active_id);
                }
                $entered_values = 0;

                $this->getProcessLocker()->requestUserSolutionUpdateLock();

                $result = $this->getCurrentSolutionResultSet($active_id, $pass);
                $row = $ilDB->fetchAssoc($result);
                $update = $row["solution_id"];
                
                if ($update)
                {
                        if (strlen($_POST["multiple_choice_result"]))
                        {
                                $affectedRows = $ilDB->update("tst_solutions", array(
                                        "value1" => array("clob", $_POST["multiple_choice_result"]),
                                        "tstamp" => array("integer", time())
                                ), array(
                                "solution_id" => array("integer", $update)
                                ));
                                $entered_values++;
                        }
                        else
                        {
                                $affectedRows = $ilDB->manipulateF("DELETE FROM tst_solutions WHERE solution_id = %s",
                                        array('integer'),
                                        array($update)
                                );
                        }
                }
                else
                {
                        if (strlen($_POST["multiple_choice_result"]))
                        {
                                $affectedRows = $this->saveCurrentSolution($active_id, $pass, $_POST['multiple_choice_result'], null);
                                $entered_values++;
                        }
                }

                $this->getProcessLocker()->releaseUserSolutionUpdateLock();
                
                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 true;
        }

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setExportDetailsXLS()

assSingleChoice::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 1018 of file class.assSingleChoice.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()), $format_bold);
                        if(
                                count($solution) > 0 &&
                                isset($solution[0]) &&
                                is_array($solution[0]) &&
                                strlen($solution[0]['value1']) > 0 && $id == $solution[0]['value1'])
                        {
                                $worksheet->write($startrow + $i, 1, 1);
                        }
                        else
                        {
                                $worksheet->write($startrow + $i, 1, 0);
                        }
                        $i++;
                }
                return $startrow + $i + 1;
        }

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setImageFile()

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

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 818 of file class.assSingleChoice.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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setMultilineAnswerSetting()

assSingleChoice::setMultilineAnswerSetting

(

$a_setting = 0

)

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

References $ilUser.

        {
                global $ilUser;
                $ilUser->writePref("tst_multiline_answers", $a_setting);
        }

setOutputType()

assSingleChoice::setOutputType

(

$output_type = OUTPUT_ORDER

)

Sets the output type of the assSingleChoice object.

Parameters

integer

$output_type

A nonnegative integer value specifying the output type. It is OUTPUT_ORDER (=0) or OUTPUT_RANDOM (=1). public

See also

$response

Definition at line 420 of file class.assSingleChoice.php.

References $output_type.

        {
                $this->output_type = $output_type;
        }

setSpecificFeedbackSetting()

assSingleChoice::setSpecificFeedbackSetting

(

$a_feedback_setting

)

Sets the feedback settings in effect for the question.

Options are: 1 - Feedback is shown for all answer options. 2 - Feedback is shown for all checked/selected options. 3 - Feedback is shown for all correct options.

Parameters

integer

$a_feedback_setting

Definition at line 1149 of file class.assSingleChoice.php.

        {
                $this->feedback_setting = $a_feedback_setting;
        }

setThumbSize()

assSingleChoice::setThumbSize

(

$a_size

)

Definition at line 1050 of file class.assSingleChoice.php.

Referenced by loadFromDb().

        {
                $this->thumb_size = $a_size;
        }

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syncImages()

assSingleChoice::syncImages ( )

protected

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

Definition at line 942 of file class.assSingleChoice.php.

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

        {
                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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toJSON()

assSingleChoice::toJSON

(

)

Returns a JSON representation of the question.

Definition at line 1058 of file class.assSingleChoice.php.

References $answers, $mobs, $result, ilObjMediaObject\_getMobsOfObject(), assQuestion\formatSAQuestion(), getAnswers(), assQuestion\getId(), assQuestion\getImagePathWeb(), assQuestion\getNrOfTries(), assQuestion\getQuestion(), getQuestionType(), assQuestion\getShuffle(), getThumbSize(), and assQuestion\getTitle().

        {
                include_once("./Services/RTE/classes/class.ilRTE.php");
                $result = array();
                $result['id'] = (int) $this->getId();
                $result['type'] = (string) $this->getQuestionType();
                $reilUtilsult['title'] = (string) $this->getTitle();
                $result['question'] =  $this->formatSAQuestion($this->getQuestion());
                $result['nr_of_tries'] = (int) $this->getNrOfTries();
                $result['shuffle'] = (bool) $this->getShuffle();
                
                $result['feedback'] = array(
                        'onenotcorrect' => $this->formatSAQuestion($this->feedbackOBJ->getGenericFeedbackTestPresentation($this->getId(), false)),
                        'allcorrect' => $this->formatSAQuestion($this->feedbackOBJ->getGenericFeedbackTestPresentation($this->getId(), true))
                );

                $answers = array();
                $has_image = false;
                foreach ($this->getAnswers() as $key => $answer_obj)
                {
                        if((string) $answer_obj->getImage())
                        {
                                $has_image = true;
                        }
                        array_push($answers, array(
                                "answertext" => (string) $this->formatSAQuestion($answer_obj->getAnswertext()),
                                "points" => (float)$answer_obj->getPoints(),
                                "order" => (int)$answer_obj->getOrder(),
                                "image" => (string) $answer_obj->getImage(),
                                "feedback" => $this->formatSAQuestion(
                                                $this->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation($this->getId(), $key)
                                )
                        ));
                }
                $result['answers'] = $answers;
                if($has_image)
                {
                        $result['path'] = $this->getImagePathWeb();
                        $result['thumb'] = $this->getThumbSize();
                }

                $mobs = ilObjMediaObject::_getMobsOfObject("qpl:html", $this->getId());
                $result['mobs'] = $mobs;

                return json_encode($result);
        }

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Field Documentation

$answers

assSingleChoice::$answers

Definition at line 33 of file class.assSingleChoice.php.

Referenced by getAnswers(), and toJSON().

$feedback_setting

assSingleChoice::$feedback_setting

protected

Definition at line 58 of file class.assSingleChoice.php.

Referenced by getSpecificFeedbackSetting().

$output_type

assSingleChoice::$output_type

Definition at line 43 of file class.assSingleChoice.php.

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

$thumb_size

assSingleChoice::$thumb_size

protected

Definition at line 50 of file class.assSingleChoice.php.

Referenced by getThumbSize().

---

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

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