ILIAS  release_5-2 Revision v5.2.25-18-g3f80b828510
Public Member Functions | Protected Member Functions | Private Attributes
assFormulaQuestion Class Reference
Modules/TestQuestionPool

Class for single choice questions assFormulaQuestion is a class for single choice questions. More...

+ Inheritance diagram for assFormulaQuestion:
+ Collaboration diagram for assFormulaQuestion:

Public Member Functions

 __construct ( $title="", $comment="", $author="", $owner=-1, $question="")
 assFormulaQuestion constructor The constructor takes possible arguments an creates an instance of the assFormulaQuestion object. More...
 
 clearVariables ()
 
 getVariables ()
 
 getVariable ($variable)
 
 addVariable ($variable)
 
 clearResults ()
 
 getResults ()
 
 getResult ($result)
 
 addResult ($result)
 
 addResultUnits ($result, $unit_ids)
 
 addResultUnit ($result, $unit)
 
 getResultUnits ($result)
 
 hasResultUnit ($result, $unit_id)
 
 parseQuestionText ()
 
 checkForDuplicateVariables ()
 
 checkForDuplicateResults ()
 
 fetchAllResults ($questionText)
 
 fetchAllVariables ($questionText)
 
 hasRequiredVariableSolutionValues (array $userSolution)
 
 getInitialVariableSolutionValues ()
 
 substituteVariables (array $userdata, $graphicalOutput=FALSE, $forsolution=FALSE, $result_output=FALSE)
 
 canUseAdvancedRating ($result)
 Check if advanced rating can be used for a result. More...
 
 isComplete ()
 Returns true, if the question is complete for use. More...
 
 saveToDb ($original_id="")
 Saves a assFormulaQuestion object to a database @access public. More...
 
 loadFromDb ($question_id)
 Loads a assFormulaQuestion object from a database. More...
 
 duplicate ($for_test=true, $title="", $author="", $owner="", $testObjId=null)
 Duplicates an assFormulaQuestion @access public. More...
 
 copyObject ($target_questionpool_id, $title="")
 Copies an assFormulaQuestion object @access public. More...
 
 createNewOriginalFromThisDuplicate ($targetParentId, $targetQuestionTitle="")
 
 getMaximumPoints ()
 Returns the maximum points, a learner can reach answering the question. More...
 
 calculateReachedPoints ($active_id, $pass=NULL, $authorizedSolution=true, $returndetails=false)
 Returns the points, a learner has reached answering the question The points are calculated from the given answers. More...
 
 calculateReachedPointsFromPreviewSession (ilAssQuestionPreviewSession $previewSession)
 
 saveWorkingData ($active_id, $pass=NULL, $authorized=true)
 Saves the learners input of the question to the database. More...
 
 lookupForExistingSolutions ($activeId, $pass)
 Lookup if an authorized or intermediate solution exists. More...
 
 removeExistingSolutions ($activeId, $pass)
 Remove an existing solution without removing the variables. 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...
 
 deleteAnswers ($question_id)
 Deletes datasets from answers tables. More...
 
 getRTETextWithMediaObjects ()
 Collects all text in the question which could contain media objects which were created with the Rich Text Editor. More...
 
 setExportDetailsXLS ($worksheet, $startrow, $active_id, $pass)
 {Creates an Excel worksheet for the detailed cumulated results of this question.
Parameters
object$worksheetReference to the parent excel worksheet
object$startrowStartrow of the output in the excel worksheet
object$active_idActive id of the participant
object$passTest pass
Returns
object
} More...
 
 getBestSolution ($solutions)
 Returns the best solution for a given pass of a participant. More...
 
 setId ($id=-1)
 Sets the id of the assQuestion object. More...
 
 __get ($value)
 Object getter. More...
 
 setUnitrepository ($unitrepository)
 
 getUnitrepository ()
 
 validateSolutionSubmit ()
 
 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...
 
 getShuffler ()
 
 setShuffler (ilArrayElementShuffler $shuffler)
 
 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...
 
 getTitleFilenameCompliant ()
 returns the object title prepared to be used as a filename 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 ()
 
 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, $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, $authorizedSolution=true)
 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, $authorized=true)
 persists the working state for current testactive and testpass More...
 
 persistPreviewState (ilAssQuestionPreviewSession $previewSession)
 persists the preview state for current user and question More...
 
 validateSolutionSubmit ()
 
 saveWorkingData ($active_id, $pass=NULL, $authorized=true)
 Saves the learners input of the question to the database. 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...
 
 getTestOutputSolutions ($activeId, $pass)
 
 getUserSolutionPreferingIntermediate ($active_id, $pass=NULL)
 
 getSolutionValues ($active_id, $pass=NULL, $authorized=true)
 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...
 
 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...
 
 copyXHTMLMediaObjectsOfQuestion ($a_q_id)
 
 syncXHTMLMediaObjectsOfQuestion ()
 
 createPageObject ()
 create page object of question More...
 
 copyPageOfQuestion ($a_q_id)
 
 getPageOfQuestion ()
 
 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)
 
 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...
 
 calculateReachedPoints ($active_id, $pass=NULL, $authorizedSolution=true, $returndetails=FALSE)
 Returns the points, a learner has reached answering the question. More...
 
 deductHintPointsFromReachedPoints (ilAssQuestionPreviewSession $previewSession, $reachedPoints)
 
 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, $omitNl2BrWhenTextArea=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...
 
 buildHashedImageFilename ($plain_image_filename, $unique=false)
 
 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...
 
 getActiveUserData ($active_id)
 Returns the user id and the test id for a given active id. More...
 
 setExportDetailsXLS ($worksheet, $startrow, $active_id, $pass)
 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)
 
 formatSAQuestion ($a_q)
 Format self assessment question. More...
 
 setPreventRteUsage ($a_val)
 Set prevent rte usage. More...
 
 getPreventRteUsage ()
 Get prevent rte usage. More...
 
 migrateContentForLearningModule (ilAssSelfAssessmentMigrator $migrator)
 
 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...
 
 syncSkillAssignments ($srcParentId, $srcQuestionId, $trgParentId, $trgQuestionId)
 
 isAnswered ($active_id, $pass=null)
 returns boolean wether the question is answered during test pass 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 ()
 
 removeIntermediateSolution ($active_id, $pass)
 
 removeCurrentSolution ($active_id, $pass, $authorized=true)
 
 saveCurrentSolution ($active_id, $pass, $value1, $value2, $authorized=true, $tstamp=null)
 
 updateCurrentSolution ($solutionId, $value1, $value2, $authorized=true)
 
 updateCurrentSolutionsAuthorization ($activeId, $pass, $authorized, $keepTime=false)
 
 setStep ($step)
 
 getStep ()
 
 toJSON ()
 
 duplicate ($for_test=true, $title="", $author="", $owner="", $testObjId=null)
 
 intermediateSolutionExists ($active_id, $pass)
 
 authorizedSolutionExists ($active_id, $pass)
 
 authorizedOrIntermediateSolutionExists ($active_id, $pass)
 
 removeExistingSolutions ($activeId, $pass)
 
 resetUsersAnswer ($activeId, $pass)
 
 removeResultRecord ($activeId, $pass)
 
 fetchValuePairsFromIndexedValues (array $indexedValues)
 
 fetchIndexedValuesFromValuePairs (array $valuePairs)
 
 areObligationsToBeConsidered ()
 
 setObligationsToBeConsidered ($obligationsToBeConsidered)
 
 updateTimestamp ()
 
 getTestPresentationConfig ()
 Get the test question configuration (initialised once) More...
 
- Public Member Functions inherited from iQuestionCondition
 getOperators ($expression)
 Get all available operations for a specific question. More...
 
 getExpressionTypes ()
 Get all available expression types for a specific question. More...
 
 getUserQuestionResult ($active_id, $pass)
 Get the user solution for a question by active_id and the test pass. 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...
 

Protected Member Functions

 isValidSolutionResultValue ($submittedValue)
 
 savePreviewData (ilAssQuestionPreviewSession $previewSession)
 
 reworkWorkingData ($active_id, $pass, $obligationsAnswered, $authorized)
 {Reworks the allready saved working data if neccessary.
Parameters
integer$active_id
integer$pass
boolean$obligationsAnswered
boolean$authorized
} More...
 
 getSolutionSubmit ()
 
- Protected Member Functions inherited from assQuestion
 getQuestionAction ()
 
 isNonEmptyItemListPostSubmission ($postSubmissionFieldname)
 
 ensureCurrentTestPass ($active_id, $pass)
 
 lookupCurrentTestPass ($active_id, $pass)
 
 lookupTestId ($active_id)
 
 log ($active_id, $langVar)
 
 reworkWorkingData ($active_id, $pass, $obligationsAnswered, $authorized)
 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)
 
 ensureNonNegativePoints ($points)
 
 getRTETextWithMediaObjects ()
 Collects all text in the question which could contain media objects which were created with the Rich Text Editor. More...
 
 getSelfAssessmentFormatter ()
 
 lmMigrateQuestionTypeGenericContent (ilAssSelfAssessmentMigrator $migrator)
 
 lmMigrateQuestionTypeSpecificContent (ilAssSelfAssessmentMigrator $migrator)
 
 duplicateQuestionHints ($originalQuestionId, $duplicateQuestionId)
 
 duplicateSkillAssignments ($srcParentId, $srcQuestionId, $trgParentId, $trgQuestionId)
 
 buildQuestionDataQuery ()
 
 getCurrentSolutionResultSet ($active_id, $pass, $authorized=true)
 Get a restulset for the current user solution for a this question by active_id and pass. More...
 
 removeSolutionRecordById ($solutionId)
 
 getSolutionRecordById ($solutionId)
 
 deleteDummySolutionRecord ($activeId, $passIndex)
 
 deleteSolutionRecordByValues ($activeId, $passIndex, $authorized, $matchValues)
 
 duplicateIntermediateSolutionAuthorized ($activeId, $passIndex)
 
 forceExistingIntermediateSolution ($activeId, $passIndex, $considerDummyRecordCreation)
 
 buildTestPresentationConfig ()
 build basic test question configuration instance More...
 

Private Attributes

 $variables
 
 $results
 
 $resultunits
 
 $unitrepository
 

Additional Inherited Members

- Static Public Member Functions inherited from assQuestion
static setForcePassResultUpdateEnabled ($forcePassResultsUpdateEnabled)
 
static isForcePassResultUpdateEnabled ()
 
static isAllowedImageMimeType ($mimeType)
 
static fetchMimeTypeIdentifier ($contentTypeString)
 
static getAllowedFileExtensionsForMimeType ($mimeType)
 
static isAllowedImageFileExtension ($mimeType, $fileExtension)
 
static getAllowedImageMaterialFileExtensions ()
 
static _getMaximumPoints ($question_id)
 Returns the maximum points, a learner can reach answering the question. More...
 
static _getQuestionInfo ($question_id)
 Returns question information from the database. More...
 
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 _getReachedPoints ($active_id, $question_id, $pass=NULL)
 Returns the points, a learner has reached answering the question. More...
 
static _updateTestResultCache ($active_id, ilAssQuestionProcessLocker $processLocker=null)
 @TODO Move this to a proper place. More...
 
static logAction ($logtext="", $active_id="", $question_id="")
 Logs an action into the Test&Assessment log. More...
 
static getQuestionTypeFromDb ($question_id)
 get question type for question id More...
 
static _getTotalRightAnswers ($a_q_id)
 get number of answers for question id (static) note: do not use $this inside this method More...
 
static _getTitle ($a_q_id)
 Returns the title of a question. More...
 
static _getQuestionText ($a_q_id)
 Returns question text. More...
 
static isFileAvailable ($file)
 
static _getQuestionType ($question_id)
 Returns the question type of a question with a given id. More...
 
static _getQuestionTitle ($question_id)
 Returns the question title of a question with a given id. More...
 
static saveOriginalId ($questionId, $originalId)
 
static resetOriginalId ($questionId)
 
static _getInternalLinkHref ($target="")
 
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 _getSolutionMaxPass ($question_id, $active_id)
 Returns the maximum pass a users question solution. More...
 
static _isWriteable ($question_id, $user_id)
 Returns true if the question is writeable by a certain user. More...
 
static _isUsedInRandomTest ($question_id="")
 Checks whether the question is used in a random test or not. More...
 
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 _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...
 
static _needsManualScoring ($question_id)
 
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 _questionExistsInTest ($question_id, $test_id)
 
static lookupParentObjId ($questionId)
 @global ilDBInterface $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 implodeKeyValues ($keyValues)
 
static explodeKeyValues ($keyValues)
 
static setResultGateway ($resultGateway)
 
static getResultGateway ()
 
static sumTimesInISO8601FormatH_i_s_Extended ($time1, $time2)
 
static convertISO8601FormatH_i_s_ExtendedToSeconds ($time)
 
static missingResultRecordExists ($activeId, $pass, $questionIds)
 
static getQuestionsMissingResultRecord ($activeId, $pass, $questionIds)
 
static lookupResultRecordExist ($activeId, $questionId, $pass)
 
- 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'
 
const KEY_VALUES_IMPLOSION_SEPARATOR = ':'
 
- 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 = "?"
 
- 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 getKeyValuesImplosionSeparator ()
 
- 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 = OUTPUT_JAVASCRIPT
 
 $suggested_solutions
 
 $original_id
 
 $page
 
 $external_id = ''
 
 $questionChangeListeners = array()
 
 $processLocker
 
 $step = null
 
 $lastChange
 
 $shuffler
 
 $testQuestionConfig
 
- Static Protected Attributes inherited from assQuestion
static $allowedFileExtensionsByMimeType
 
static $allowedCharsetsByMimeType
 
static $allowedImageMaterialFileExtensionsByMimeType
 
static $forcePassResultsUpdateEnabled = false
 
static $imageSourceFixReplaceMap
 

Detailed Description

Class for single choice questions assFormulaQuestion 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
Version
Id
class.assFormulaQuestion.php 1236 2010-02-15 15:44:16Z hschottm

Definition at line 19 of file class.assFormulaQuestion.php.

Constructor & Destructor Documentation

◆ __construct()

assFormulaQuestion::__construct (   $title = "",
  $comment = "",
  $author = "",
  $owner = -1,
  $question = "" 
)

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

Parameters
string$titleA title string to describe the question
string$commentA comment string to describe the question
string$authorA string containing the name of the questions author
integer$ownerA numerical ID to identify the owner/creator
string$questionThe question string of the single choice question @access public
See also
assQuestion:assQuestion()

Reimplemented from assQuestion.

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

48 {
49 parent::__construct($title, $comment, $author, $owner, $question);
50 $this->variables = array();
51 $this->results = array();
52 $this->resultunits = array();
53 $this->unitrepository = new ilUnitConfigurationRepository(0);
54
55 }
ilUnitConfigurationRepository
Class ilUnitConfigurationRepository.
Definition: class.ilUnitConfigurationRepository.php:11

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

Member Function Documentation

◆ __get()

assFormulaQuestion::__get (   $value)

Object getter.

Reimplemented from assQuestion.

Definition at line 1464 of file class.assFormulaQuestion.php.

1465 {
1466 switch($value)
1467 {
1468 case "resultunits":
1469 return $this->resultunits;
1470 break;
1471 default:
1472 return parent::__get($value);
1473 break;
1474 }
1475 }

References $resultunits.

◆ addResult()

assFormulaQuestion::addResult (   $result)

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

101 {
102 $this->results[$result->getResult()] = $result;
103 }
$result
$result
Definition: CleanUpTest.php:407

References $result.

Referenced by loadFromDb(), and parseQuestionText().

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◆ addResultUnit()

assFormulaQuestion::addResultUnit (   $result,
  $unit 
)

Definition at line 115 of file class.assFormulaQuestion.php.

116 {
117 if(is_object($result) && is_object($unit))
118 {
119 if(!is_array($this->resultunits[$result->getResult()]))
120 {
121 $this->resultunits[$result->getResult()] = array();
122 }
123 $this->resultunits[$result->getResult()][$unit->getId()] = $unit;
124
125 }
126 }

References $result.

Referenced by loadFromDb().

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◆ addResultUnits()

assFormulaQuestion::addResultUnits (   $result,
  $unit_ids 
)

Definition at line 105 of file class.assFormulaQuestion.php.

106 {
107 $this->resultunits[$result->getResult()] = array();
108 if((!is_object($result)) || (!is_array($unit_ids))) return;
109 foreach($unit_ids as $id)
110 {
111 if(is_numeric($id) && ($id > 0)) $this->resultunits[$result->getResult()][$id] = $this->getUnitrepository()->getUnit($id);
112 }
113 }

References assQuestion\$id, $result, and getUnitrepository().

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◆ addVariable()

assFormulaQuestion::addVariable (   $variable)

Definition at line 76 of file class.assFormulaQuestion.php.

77 {
78 $this->variables[$variable->getVariable()] = $variable;
79 }

Referenced by loadFromDb(), and parseQuestionText().

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◆ calculateReachedPoints()

assFormulaQuestion::calculateReachedPoints (   $active_id,
  $pass = NULL,
  $authorizedSolution = true,
  $returndetails = false 
)

Returns the points, a learner has reached answering the question The points are calculated from the given answers.

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

Reimplemented from assQuestion.

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

960 {
961 if(is_null($pass))
962 {
963 $pass = $this->getSolutionMaxPass($active_id);
964 }
965 $solutions =& $this->getSolutionValues($active_id, $pass, $authorizedSolution);
966 $user_solution = array();
967 foreach($solutions as $idx => $solution_value)
968 {
969 if(preg_match("/^(\\\$v\\d+)$/", $solution_value["value1"], $matches))
970 {
971 $user_solution[$matches[1]] = $solution_value["value2"];
972 $varObj = $this->getVariable($solution_value["value1"]);
973 $varObj->setValue($solution_value["value2"]);
974 }
975 else if(preg_match("/^(\\\$r\\d+)$/", $solution_value["value1"], $matches))
976 {
977 if(!array_key_exists($matches[1], $user_solution)) $user_solution[$matches[1]] = array();
978 $user_solution[$matches[1]]["value"] = $solution_value["value2"];
979 }
980 else if(preg_match("/^(\\\$r\\d+)_unit$/", $solution_value["value1"], $matches))
981 {
982 if(!array_key_exists($matches[1], $user_solution)) $user_solution[$matches[1]] = array();
983 $user_solution[$matches[1]]["unit"] = $solution_value["value2"];
984 }
985 }
986 //vd($this->getResults());
987 $points = 0;
988 foreach($this->getResults() as $result)
989 {
990 //vd($user_solution[$result->getResult()]["value"]);
991 $points += $result->getReachedPoints($this->getVariables(), $this->getResults(), $user_solution[$result->getResult()]["value"], $user_solution[$result->getResult()]["unit"], $this->unitrepository->getUnits());
992 }
993
994 return $points;
995 }
assQuestion\getSolutionMaxPass
getSolutionMaxPass($active_id)
Returns the maximum pass a users question solution.
Definition: class.assQuestion.php:3401
assQuestion\getSolutionValues
getSolutionValues($active_id, $pass=NULL, $authorized=true)
Loads solutions of a given user from the database an returns it.
Definition: class.assQuestion.php:1789

References $pass, assQuestion\$points, $result, getResults(), assQuestion\getSolutionMaxPass(), assQuestion\getSolutionValues(), getVariable(), and getVariables().

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◆ calculateReachedPointsFromPreviewSession()

assFormulaQuestion::calculateReachedPointsFromPreviewSession ( ilAssQuestionPreviewSession  $previewSession)

Reimplemented from assQuestion.

Definition at line 997 of file class.assFormulaQuestion.php.

998 {
999 $user_solution = $previewSession->getParticipantsSolution();
1000
1001 $points = 0;
1002 foreach($this->getResults() as $result)
1003 {
1004 $v = isset($user_solution[$result->getResult()]) ? $user_solution[$result->getResult()] : null;
1005 $u = isset($user_solution[$result->getResult().'_unit']) ? $user_solution[$result->getResult().'_unit'] : null;
1006
1007 $points += $result->getReachedPoints(
1008 $this->getVariables(),
1009 $this->getResults(),
1010 $v,
1011 $u,
1012 $this->unitrepository->getUnits());
1013 }
1014
1015 $reachedPoints = $this->deductHintPointsFromReachedPoints($previewSession, $points);
1016
1017 return $this->ensureNonNegativePoints($reachedPoints);
1018 }
assQuestion\deductHintPointsFromReachedPoints
deductHintPointsFromReachedPoints(ilAssQuestionPreviewSession $previewSession, $reachedPoints)
Definition: class.assQuestion.php:3503
assQuestion\ensureNonNegativePoints
ensureNonNegativePoints($points)
Definition: class.assQuestion.php:3522

References assQuestion\$points, $result, assQuestion\deductHintPointsFromReachedPoints(), assQuestion\ensureNonNegativePoints(), ilAssQuestionPreviewSession\getParticipantsSolution(), getResults(), and getVariables().

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◆ canUseAdvancedRating()

assFormulaQuestion::canUseAdvancedRating (   $result)

Check if advanced rating can be used for a result.

This is only possible if there is exactly one possible correct unit for the result, otherwise it is impossible to determine wheather the unit is correct or the value.

Returns
boolean True if advanced rating could be used, false otherwise

Definition at line 572 of file class.assFormulaQuestion.php.

573 {
574 $result_units = $this->getResultUnits($result);
575 $resultunit = $result->getUnit();
576 $similar_units = 0;
577 foreach($result_units as $unit)
578 {
579 if(is_object($resultunit))
580 {
581 if($resultunit->getId() != $unit->getId())
582 {
583 if($resultunit->getBaseUnit() && $unit->getBaseUnit())
584 {
585 if($resultunit->getBaseUnit() == $unit->getBaseUnit()) return false;
586 }
587 if($resultunit->getBaseUnit())
588 {
589 if($resultunit->getBaseUnit() == $unit->getId()) return false;
590 }
591 if($unit->getBaseUnit())
592 {
593 if($unit->getBaseUnit() == $resultunit->getId()) return false;
594 }
595 }
596 }
597 }
598 return true;
599 }

References $result, and getResultUnits().

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◆ checkForDuplicateResults()

assFormulaQuestion::checkForDuplicateResults ( )

Definition at line 185 of file class.assFormulaQuestion.php.

186 {
187 if(preg_match_all("/(\\\$r\\d+)/ims", $this->getQuestion(), $rmatches))
188 {
189 if((count(array_unique($rmatches[1]))) != count($rmatches[1])) return false;
190 }
191 return true;
192 }
assQuestion\getQuestion
getQuestion()
Gets the question string of the question object.
Definition: class.assQuestion.php:3832

References assQuestion\getQuestion().

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◆ checkForDuplicateVariables()

assFormulaQuestion::checkForDuplicateVariables ( )

Definition at line 176 of file class.assFormulaQuestion.php.

177 {
178 if(preg_match_all("/(\\\$v\\d+)/ims", $this->getQuestion(), $matches))
179 {
180 if((count(array_unique($matches[1]))) != count($matches[1])) return false;
181 }
182 return true;
183 }

References assQuestion\getQuestion().

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◆ clearResults()

assFormulaQuestion::clearResults ( )

Definition at line 81 of file class.assFormulaQuestion.php.

82 {
83 $this->results = array();
84 }

Referenced by parseQuestionText().

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◆ clearVariables()

assFormulaQuestion::clearVariables ( )

Definition at line 57 of file class.assFormulaQuestion.php.

58 {
59 $this->variables = array();
60 }

Referenced by parseQuestionText().

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◆ copyObject()

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

Copies an assFormulaQuestion object @access public.

Definition at line 870 of file class.assFormulaQuestion.php.

871 {
872 if ($this->id <= 0)
873 {
874 // The question has not been saved. It cannot be duplicated
875 return;
876 }
877 // duplicate the question in database
878 $clone = $this;
879 include_once ("./Modules/TestQuestionPool/classes/class.assQuestion.php");
880 $original_id = assQuestion::_getOriginalId($this->id);
881 $clone->id = -1;
882 $source_questionpool_id = $this->getObjId();
883 $clone->setObjId($target_questionpool_id);
884 if ($title)
885 {
886 $clone->setTitle($title);
887 }
888 $clone->saveToDb();
889
890 $clone->unitrepository->cloneUnits($original_id, $clone->getId());
891
892 // copy question page content
893 $clone->copyPageOfQuestion($original_id);
894 // copy XHTML media objects
895 $clone->copyXHTMLMediaObjectsOfQuestion($original_id);
896
897 $clone->onCopy($source_questionpool_id, $original_id, $clone->getObjId(), $clone->getId());
898
899 return $clone->id;
900 }
assQuestion\_getOriginalId
static _getOriginalId($question_id)
Returns the original id of a question.
Definition: class.assQuestion.php:3179
assQuestion\getObjId
getObjId()
Get the object id of the container object.
Definition: class.assQuestion.php:905

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

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◆ createNewOriginalFromThisDuplicate()

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

Definition at line 902 of file class.assFormulaQuestion.php.

903 {
904 if ($this->id <= 0)
905 {
906 // The question has not been saved. It cannot be duplicated
907 return;
908 }
909
910 include_once ("./Modules/TestQuestionPool/classes/class.assQuestion.php");
911
912 $sourceQuestionId = $this->id;
913 $sourceParentId = $this->getObjId();
914
915 // duplicate the question in database
916 $clone = $this;
917 $clone->id = -1;
918
919 $clone->setObjId($targetParentId);
920
921 if ($targetQuestionTitle)
922 {
923 $clone->setTitle($targetQuestionTitle);
924 }
925
926 $clone->saveToDb();
927 // copy question page content
928 $clone->copyPageOfQuestion($sourceQuestionId);
929 // copy XHTML media objects
930 $clone->copyXHTMLMediaObjectsOfQuestion($sourceQuestionId);
931
932 $clone->onCopy($sourceParentId, $sourceQuestionId, $clone->getObjId(), $clone->getId());
933
934 return $clone->id;
935 }

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

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◆ deleteAnswers()

assFormulaQuestion::deleteAnswers (   $question_id)

Deletes datasets from answers tables.

Parameters
integer$question_idThe question id which should be deleted in the answers table @access public

Reimplemented from assQuestion.

Definition at line 1286 of file class.assFormulaQuestion.php.

1287 {
1288 global $ilDB;
1289
1290 $affectedRows = $ilDB->manipulateF("DELETE FROM il_qpl_qst_fq_var WHERE question_fi = %s",
1291 array('integer'),
1292 array($question_id)
1293 );
1294
1295 $affectedRows = $ilDB->manipulateF("DELETE FROM il_qpl_qst_fq_res WHERE question_fi = %s",
1296 array('integer'),
1297 array($question_id)
1298 );
1299
1300 $affectedRows = $ilDB->manipulateF("DELETE FROM il_qpl_qst_fq_res_unit WHERE question_fi = %s",
1301 array('integer'),
1302 array($question_id)
1303 );
1304
1305 $affectedRows = $ilDB->manipulateF("DELETE FROM il_qpl_qst_fq_ucat WHERE question_fi = %s",
1306 array('integer'),
1307 array($question_id)
1308 );
1309
1310 $affectedRows = $ilDB->manipulateF("DELETE FROM il_qpl_qst_fq_unit WHERE question_fi = %s",
1311 array('integer'),
1312 array($question_id)
1313 );
1314 }
$ilDB
global $ilDB
Definition: storeScorm2004.php:19

References $ilDB.

◆ duplicate()

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

Duplicates an assFormulaQuestion @access public.

Reimplemented from assQuestion.

Definition at line 811 of file class.assFormulaQuestion.php.

812 {
813 if ($this->id <= 0)
814 {
815 // The question has not been saved. It cannot be duplicated
816 return;
817 }
818 // duplicate the question in database
819 $this_id = $this->getId();
820 $thisObjId = $this->getObjId();
821
822 $clone = $this;
823 include_once ("./Modules/TestQuestionPool/classes/class.assQuestion.php");
824 $original_id = assQuestion::_getOriginalId($this->id);
825 $clone->id = -1;
826
827 if( (int)$testObjId > 0 )
828 {
829 $clone->setObjId($testObjId);
830 }
831
832 if ($title)
833 {
834 $clone->setTitle($title);
835 }
836
837 if ($author)
838 {
839 $clone->setAuthor($author);
840 }
841 if ($owner)
842 {
843 $clone->setOwner($owner);
844 }
845
846 if ($for_test)
847 {
848 $clone->saveToDb($original_id);
849 }
850 else
851 {
852 $clone->saveToDb();
853 }
854
855 $clone->unitrepository->cloneUnits($this_id, $clone->getId());
856
857 // copy question page content
858 $clone->copyPageOfQuestion($this_id);
859 // copy XHTML media objects
860 $clone->copyXHTMLMediaObjectsOfQuestion($this_id);
861 $clone->onDuplicate($thisObjId, $this_id, $clone->getObjId(), $clone->getId());
862
863 return $clone->id;
864 }
assQuestion\getId
getId()
Gets the id of the assQuestion object.
Definition: class.assQuestion.php:784

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

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◆ fetchAllResults()

assFormulaQuestion::fetchAllResults (   $questionText)
Parameters
string$questionText
Returns
assFormulaQuestionResult[] $resObjects

Definition at line 198 of file class.assFormulaQuestion.php.

199 {
200 $resObjects = array();
201 $matches = null;
202
203 if(preg_match_all("/(\\\$r\\d+)/ims", $questionText, $matches))
204 {
205 foreach($matches[1] as $resultKey)
206 {
207 $resObjects[] = $this->getResult($resultKey);
208 }
209 }
210
211 return $resObjects;
212 }

References getResult().

Referenced by getInitialVariableSolutionValues().

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◆ fetchAllVariables()

assFormulaQuestion::fetchAllVariables (   $questionText)
Parameters
string$questionText
Returns
assFormulaQuestionVariable[] $varObjects

Definition at line 218 of file class.assFormulaQuestion.php.

219 {
220 $varObjects = array();
221 $matches = null;
222
223 if(preg_match_all("/(\\\$v\\d+)/ims", $questionText, $matches))
224 {
225 foreach($matches[1] as $variableKey)
226 {
227 $varObjects[] = $this->getVariable($variableKey);
228 }
229 }
230
231 return $varObjects;
232 }

References getVariable().

Referenced by getInitialVariableSolutionValues(), hasRequiredVariableSolutionValues(), and substituteVariables().

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◆ getAdditionalTableName()

assFormulaQuestion::getAdditionalTableName ( )

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

Returns
string The additional table name

Reimplemented from assQuestion.

Definition at line 1267 of file class.assFormulaQuestion.php.

1268 {
1269 return "";
1270 }

◆ getAnswerTableName()

assFormulaQuestion::getAnswerTableName ( )

Returns the name of the answer table in the database.

Returns
string The answer table name

Reimplemented from assQuestion.

Definition at line 1276 of file class.assFormulaQuestion.php.

1277 {
1278 return "";
1279 }

◆ getAvailableAnswerOptions()

assFormulaQuestion::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 1618 of file class.assFormulaQuestion.php.

1619 {
1620 if($index !== null)
1621 {
1622 return $this->getResult('$r'.($index+1));
1623 }
1624 else
1625 {
1626 return $this->getResults();
1627 }
1628 }

References getResult(), and getResults().

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◆ getBestSolution()

assFormulaQuestion::getBestSolution (   $solutions)

Returns the best solution for a given pass of a participant.

Returns
array An associated array containing the best solution @access public

Definition at line 1371 of file class.assFormulaQuestion.php.

1372 {
1373 $user_solution = array();
1374
1375 foreach($solutions as $idx => $solution_value)
1376 {
1377 if(preg_match("/^(\\\$v\\d+)$/", $solution_value["value1"], $matches))
1378 {
1379 $user_solution[$matches[1]] = $solution_value["value2"];
1380 $varObj = $this->getVariable($matches[1]);
1381 $varObj->setValue($solution_value["value2"]);
1382 }
1383 else if(preg_match("/^(\\\$r\\d+)$/", $solution_value["value1"], $matches))
1384 {
1385 if(!array_key_exists($matches[1], $user_solution)) $user_solution[$matches[1]] = array();
1386 $user_solution[$matches[1]]["value"] = $solution_value["value2"];
1387 }
1388 else if(preg_match("/^(\\\$r\\d+)_unit$/", $solution_value["value1"], $matches))
1389 {
1390 if(!array_key_exists($matches[1], $user_solution)) $user_solution[$matches[1]] = array();
1391 $user_solution[$matches[1]]["unit"] = $solution_value["value2"];
1392 }
1393 }
1394 foreach($this->getResults() as $result)
1395 {
1396 $resVal = $result->calculateFormula($this->getVariables(), $this->getResults(), parent::getId(), false);
1397
1398 if(is_object($result->getUnit()))
1399 {
1400 $user_solution[$result->getResult()]["unit"] = $result->getUnit()->getId();
1401 $user_solution[$result->getResult()]["value"] = $resVal;
1402 }
1403 else if($result->getUnit() == NULL)
1404 {
1405 $unit_factor = 1;
1406 // there is no fix result_unit, any "available unit" is accepted
1407
1408 $available_units = $result->getAvailableResultUnits(parent::getId());
1409 $result_name = $result->getResult();
1410
1411 if($available_units[$result_name] != NULL)
1412 {
1413 $check_unit = in_array($user_solution[$result_name]['unit'], $available_units[$result_name]);
1414 }
1415
1416 if($check_unit == true)
1417 {
1418 //get unit-factor
1419 $unit_factor = assFormulaQuestionUnit::lookupUnitFactor($user_solution[$result_name]['unit']);
1420 }
1421
1422 $user_solution[$result->getResult()]["value"] = round(ilMath::_div($resVal, $unit_factor), 55);
1423 }
1424 if($result->getResultType() == assFormulaQuestionResult::RESULT_CO_FRAC
1425 || $result->getResultType() == assFormulaQuestionResult::RESULT_FRAC)
1426 {
1427 $value = assFormulaQuestionResult::convertDecimalToCoprimeFraction($resVal);
1428 if(is_array($value))
1429 {
1430 $user_solution[$result->getResult()]["value"] = $value[0];
1431 $user_solution[$result->getResult()]["frac_helper"] = $value[1];
1432 }
1433 else
1434 {
1435 $user_solution[$result->getResult()]["value"] = $value;
1436 $user_solution[$result->getResult()]["frac_helper"] = null;
1437 }
1438 }
1439 elseif($result->getPrecision() > 0)
1440 {
1441 $user_solution[$result->getResult()]["value"] = round(
1442 $user_solution[$result->getResult()]["value"], $result->getPrecision()
1443 );
1444 }
1445 else
1446 {
1447 $user_solution[$result->getResult()]["value"] = round(
1448 $user_solution[$result->getResult()]["value"]
1449 );
1450 }
1451 }
1452 return $user_solution;
1453 }
assFormulaQuestionResult\convertDecimalToCoprimeFraction
static convertDecimalToCoprimeFraction($decimal_value, $tolerance=1.e-9)
Definition: class.assFormulaQuestionResult.php:949
ilMath\_div
static _div($left_operand, $right_operand, $scale=50)
Definition: class.ilMath.php:84

References $result, ilMath\_div(), assFormulaQuestionResult\convertDecimalToCoprimeFraction(), getResults(), getVariable(), getVariables(), assFormulaQuestionUnit\lookupUnitFactor(), assFormulaQuestionResult\RESULT_CO_FRAC, and assFormulaQuestionResult\RESULT_FRAC.

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◆ getExpressionTypes()

assFormulaQuestion::getExpressionTypes ( )

Get all available expression types for a specific question.

Returns
array

Implements iQuestionCondition.

Definition at line 1552 of file class.assFormulaQuestion.php.

1553 {
1554 return array(
1555 iQuestionCondition::PercentageResultExpression,
1556 iQuestionCondition::NumericResultExpression,
1557 iQuestionCondition::EmptyAnswerExpression,
1558 );
1559 }

References iQuestionCondition\EmptyAnswerExpression, iQuestionCondition\NumericResultExpression, and iQuestionCondition\PercentageResultExpression.

◆ getInitialVariableSolutionValues()

assFormulaQuestion::getInitialVariableSolutionValues ( )
Returns
array $initialVariableSolutionValues

Definition at line 259 of file class.assFormulaQuestion.php.

260 {
261 foreach($this->fetchAllResults($this->getQuestion()) as $resObj)
262 {
263 $resObj->findValidRandomVariables($this->getVariables(), $this->getResults());
264 }
265
266 $variableSolutionValues = array();
267
268 foreach($this->fetchAllVariables($this->getQuestion()) as $varObj)
269 {
270 $variableSolutionValues[$varObj->getVariable()] = $varObj->getValue();
271 }
272
273 return $variableSolutionValues;
274 }

References fetchAllResults(), fetchAllVariables(), assQuestion\getQuestion(), getResults(), and getVariables().

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◆ getMaximumPoints()

assFormulaQuestion::getMaximumPoints ( )

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

See also
$points

Reimplemented from assQuestion.

Definition at line 941 of file class.assFormulaQuestion.php.

942 {
943 $points = 0;
944 foreach($this->results as $result)
945 {
946 $points += $result->getPoints();
947 }
948 return $points;
949 }

References assQuestion\$points, and $result.

Referenced by isComplete().

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◆ getOperators()

assFormulaQuestion::getOperators (   $expression)

Get all available operations for a specific question.

Parameters
$expression

Implements iQuestionCondition.

Definition at line 1542 of file class.assFormulaQuestion.php.

1543 {
1544 require_once "./Modules/TestQuestionPool/classes/class.ilOperatorsExpressionMapping.php";
1545 return ilOperatorsExpressionMapping::getOperatorsByExpression($expression);
1546 }

References ilOperatorsExpressionMapping\getOperatorsByExpression().

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◆ getQuestionType()

assFormulaQuestion::getQuestionType ( )

Returns the question type of the question.

Returns
string The question type of the question

Reimplemented from assQuestion.

Definition at line 1258 of file class.assFormulaQuestion.php.

1259 {
1260 return "assFormulaQuestion";
1261 }

◆ getResult()

assFormulaQuestion::getResult (   $result)

Definition at line 91 of file class.assFormulaQuestion.php.

92 {
93 if(array_key_exists($result, $this->results))
94 {
95 return $this->results[$result];
96 }
97 return null;
98 }

References $result.

Referenced by fetchAllResults(), getAvailableAnswerOptions(), loadFromDb(), and substituteVariables().

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◆ getResults()

assFormulaQuestion::getResults ( )

Definition at line 86 of file class.assFormulaQuestion.php.

87 {
88 return $this->results;
89 }

References $results.

Referenced by calculateReachedPoints(), calculateReachedPointsFromPreviewSession(), getAvailableAnswerOptions(), getBestSolution(), getInitialVariableSolutionValues(), and substituteVariables().

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◆ getResultUnits()

assFormulaQuestion::getResultUnits (   $result)

Definition at line 128 of file class.assFormulaQuestion.php.

129 {
130 if(array_key_exists($result->getResult(), $this->resultunits))
131 {
132 return $this->resultunits[$result->getResult()];
133 }
134 else
135 {
136 return array();
137 }
138 }

References $result.

Referenced by canUseAdvancedRating(), saveToDb(), and substituteVariables().

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◆ getRTETextWithMediaObjects()

assFormulaQuestion::getRTETextWithMediaObjects ( )

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

Reimplemented from assQuestion.

Definition at line 1320 of file class.assFormulaQuestion.php.

1321 {
1322 $text = parent::getRTETextWithMediaObjects();
1323 return $text;
1324 }
$text
$text
Definition: example_020.php:127

References $text.

◆ getSolutionSubmit()

assFormulaQuestion::getSolutionSubmit ( )
protected
Returns
array

Definition at line 1496 of file class.assFormulaQuestion.php.

1497 {
1498 $solutionSubmit = array();
1499 foreach($_POST as $k => $v)
1500 {
1501 if(preg_match("/^result_(\\\$r\\d+)$/", $k))
1502 {
1503 $solutionSubmit[$k] = $v;
1504 }
1505 elseif(preg_match("/^result_(\\\$r\\d+)_unit$/", $k))
1506 {
1507 $solutionSubmit[$k] = $v;
1508 }
1509 }
1510 return $solutionSubmit;
1511 }
$_POST
$_POST["username"]
Definition: cfg.phpunit.template.php:11

References $_POST.

Referenced by savePreviewData(), saveWorkingData(), and validateSolutionSubmit().

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◆ getUnitrepository()

assFormulaQuestion::getUnitrepository ( )
Returns
\ilUnitConfigurationRepository

Definition at line 1488 of file class.assFormulaQuestion.php.

1489 {
1490 return $this->unitrepository;
1491 }

References $unitrepository.

Referenced by addResultUnits(), loadFromDb(), setExportDetailsXLS(), and substituteVariables().

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◆ getVariable()

assFormulaQuestion::getVariable (   $variable)

Definition at line 67 of file class.assFormulaQuestion.php.

68 {
69 if(array_key_exists($variable, $this->variables))
70 {
71 return $this->variables[$variable];
72 }
73 return null;
74 }

Referenced by calculateReachedPoints(), fetchAllVariables(), getBestSolution(), and setExportDetailsXLS().

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◆ getVariables()

assFormulaQuestion::getVariables ( )

Definition at line 62 of file class.assFormulaQuestion.php.

63 {
64 return $this->variables;
65 }

References $variables.

Referenced by calculateReachedPoints(), calculateReachedPointsFromPreviewSession(), getBestSolution(), getInitialVariableSolutionValues(), and substituteVariables().

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◆ hasRequiredVariableSolutionValues()

assFormulaQuestion::hasRequiredVariableSolutionValues ( array  $userSolution)
Parameters
array$userSolution
Returns
bool

Definition at line 238 of file class.assFormulaQuestion.php.

239 {
240 foreach($this->fetchAllVariables($this->getQuestion()) as $varObj)
241 {
242 if( !isset($userSolution[$varObj->getVariable()]) )
243 {
244 return false;
245 }
246
247 if( !strlen($userSolution[$varObj->getVariable()]) )
248 {
249 return false;
250 }
251 }
252
253 return true;
254 }

References fetchAllVariables(), and assQuestion\getQuestion().

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◆ hasResultUnit()

assFormulaQuestion::hasResultUnit (   $result,
  $unit_id 
)

Definition at line 140 of file class.assFormulaQuestion.php.

141 {
142 if(array_key_exists($result->getResult(), $this->resultunits))
143 {
144 if(array_key_exists($unit_id, $this->resultunits[$result->getResult()]))
145 {
146 return TRUE;
147 }
148 }
149
150 return FALSE;
151 }

References $result.

◆ isComplete()

assFormulaQuestion::isComplete ( )

Returns true, if the question is complete for use.

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

Reimplemented from assQuestion.

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

606 {
607 if(($this->title) and ($this->author) and ($this->question) and ($this->getMaximumPoints() > 0))
608 {
609 return true;
610 }
611 else
612 {
613 return false;
614 }
615 }
assFormulaQuestion\getMaximumPoints
getMaximumPoints()
Returns the maximum points, a learner can reach answering the question.
Definition: class.assFormulaQuestion.php:941

References getMaximumPoints().

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◆ isValidSolutionResultValue()

assFormulaQuestion::isValidSolutionResultValue (   $submittedValue)
protected

Definition at line 1020 of file class.assFormulaQuestion.php.

1021 {
1022 $submittedValue = str_replace(',', '.', $submittedValue);
1023
1024 if( is_numeric($submittedValue) )
1025 {
1026 return true;
1027 }
1028
1029 if( preg_match('/^[-+]{0,1}\d+\/\d+$/', $submittedValue) )
1030 {
1031 return true;
1032 }
1033
1034 return false;
1035 }

Referenced by validateSolutionSubmit().

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◆ loadFromDb()

assFormulaQuestion::loadFromDb (   $question_id)

Loads a assFormulaQuestion object from a database.

Parameters
integer$question_idA unique key which defines the question in the database

Reimplemented from assQuestion.

Definition at line 722 of file class.assFormulaQuestion.php.

723 {
724 global $ilDB;
725
726 $result = $ilDB->queryF("SELECT qpl_questions.* FROM qpl_questions WHERE question_id = %s",
727 array('integer'),
728 array($question_id)
729 );
730 if($result->numRows() == 1)
731 {
732 $data = $ilDB->fetchAssoc($result);
733 $this->setId($question_id);
734 $this->setTitle($data["title"]);
735 $this->setComment($data["description"]);
736 $this->setSuggestedSolution($data["solution_hint"]);
737 $this->setPoints($data['points']);
738 $this->setOriginalId($data["original_id"]);
739 $this->setObjId($data["obj_fi"]);
740 $this->setAuthor($data["author"]);
741 $this->setOwner($data["owner"]);
742
743 try
744 {
745 $this->setAdditionalContentEditingMode($data['add_cont_edit_mode']);
746 }
747 catch(ilTestQuestionPoolException $e)
748 {
749 }
750
751 $this->unitrepository = new ilUnitConfigurationRepository($question_id);
752
753 include_once("./Services/RTE/classes/class.ilRTE.php");
754 $this->setQuestion(ilRTE::_replaceMediaObjectImageSrc($data["question_text"], 1));
755 $this->setEstimatedWorkingTime(substr($data["working_time"], 0, 2), substr($data["working_time"], 3, 2), substr($data["working_time"], 6, 2));
756
757 // load variables
758 $result = $ilDB->queryF("SELECT * FROM il_qpl_qst_fq_var WHERE question_fi = %s",
759 array('integer'),
760 array($question_id)
761 );
762 if($result->numRows() > 0)
763 {
764 while($data = $ilDB->fetchAssoc($result))
765 {
766 $varObj = new assFormulaQuestionVariable($data["variable"], $data["range_min"], $data["range_max"], $this->getUnitrepository()->getUnit($data["unit_fi"]), $data["varprecision"], $data["intprecision"]);
767 $varObj->setRangeMinTxt($data['range_min_txt']);
768 $varObj->setRangeMaxTxt($data['range_max_txt']);
769 $this->addVariable($varObj);
770 }
771 }
772 // load results
773 $result = $ilDB->queryF("SELECT * FROM il_qpl_qst_fq_res WHERE question_fi = %s",
774 array('integer'),
775 array($question_id)
776 );
777 if($result->numRows() > 0)
778 {
779 while($data = $ilDB->fetchAssoc($result))
780 {
781 $resObj = new assFormulaQuestionResult($data["result"], $data["range_min"], $data["range_max"], $data["tolerance"], $this->getUnitrepository()->getUnit($data["unit_fi"]), $data["formula"], $data["points"], $data["resprecision"], $data["rating_simple"], $data["rating_sign"], $data["rating_value"], $data["rating_unit"]);
782 $resObj->setResultType($data['result_type']);
783 $resObj->setRangeMinTxt($data['range_min_txt']);
784 $resObj->setRangeMaxTxt($data['range_max_txt']);
785 $this->addResult($resObj);
786 }
787 }
788
789 // load result units
790 $result = $ilDB->queryF("SELECT * FROM il_qpl_qst_fq_res_unit WHERE question_fi = %s",
791 array('integer'),
792 array($question_id)
793 );
794 if($result->numRows() > 0)
795 {
796 while($data = $ilDB->fetchAssoc($result))
797 {
798 $unit = $this->getUnitrepository()->getUnit($data["unit_fi"]);
799 $resObj = $this->getResult($data["result"]);
800 $this->addResultUnit($resObj, $unit);
801 }
802 }
803 }
804 parent::loadFromDb($question_id);
805 }
assFormulaQuestion\setId
setId($id=-1)
Sets the id of the assQuestion object.
Definition: class.assFormulaQuestion.php:1455
assQuestion\setOriginalId
setOriginalId($original_id)
Definition: class.assQuestion.php:2454
assQuestion\setObjId
setObjId($obj_id=0)
Set the object id of the container object.
Definition: class.assQuestion.php:917
assQuestion\setSuggestedSolution
setSuggestedSolution($solution_id="", $subquestion_index=0, $is_import=false)
Sets a suggested solution for the question.
Definition: class.assQuestion.php:2853
assQuestion\setTitle
setTitle($title="")
Sets the title string of the assQuestion object.
Definition: class.assQuestion.php:601
assQuestion\setOwner
setOwner($owner="")
Sets the creator/owner ID of the assQuestion object.
Definition: class.assQuestion.php:749
assQuestion\setEstimatedWorkingTime
setEstimatedWorkingTime($hour=0, $min=0, $sec=0)
Sets the estimated working time of a question from given hour, minute and second.
Definition: class.assQuestion.php:684
assQuestion\setAuthor
setAuthor($author="")
Sets the authors name of the assQuestion object.
Definition: class.assQuestion.php:733
assQuestion\setPoints
setPoints($a_points)
Sets the maximum available points for the question.
Definition: class.assQuestion.php:3390
assQuestion\setComment
setComment($comment="")
Sets the comment string of the assQuestion object.
Definition: class.assQuestion.php:637
assQuestion\setAdditionalContentEditingMode
setAdditionalContentEditingMode($additinalContentEditingMode)
setter for additional content editing mode for this question
Definition: class.assQuestion.php:4701
assQuestion\setQuestion
setQuestion($question="")
Sets the question string of the question object.
Definition: class.assQuestion.php:3844
ilRTE\_replaceMediaObjectImageSrc
static _replaceMediaObjectImageSrc($a_text, $a_direction=0, $nic=IL_INST_ID)
Replaces image source from mob image urls with the mob id or replaces mob id with the correct image s...
Definition: class.ilRTE.php:237

References $data, $ilDB, $result, ilRTE\_replaceMediaObjectImageSrc(), addResult(), addResultUnit(), addVariable(), getResult(), getUnitrepository(), assQuestion\setAdditionalContentEditingMode(), assQuestion\setAuthor(), assQuestion\setComment(), assQuestion\setEstimatedWorkingTime(), setId(), assQuestion\setObjId(), assQuestion\setOriginalId(), assQuestion\setOwner(), assQuestion\setPoints(), assQuestion\setQuestion(), assQuestion\setSuggestedSolution(), and assQuestion\setTitle().

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◆ lookupForExistingSolutions()

assFormulaQuestion::lookupForExistingSolutions (   $activeId,
  $pass 
)

Lookup if an authorized or intermediate solution exists.

Parameters
int$activeId
int$pass
Returns
array ['authorized' => bool, 'intermediate' => bool]

Definition at line 1152 of file class.assFormulaQuestion.php.

1153 {
1154 global $ilDB;
1155
1156 $return = array(
1157 'authorized' => false,
1158 'intermediate' => false
1159 );
1160
1161 $query = "
1162 SELECT authorized, COUNT(*) cnt
1163 FROM tst_solutions
1164 WHERE active_fi = " . $ilDB->quote($activeId, 'integer') ."
1165 AND question_fi = ". $ilDB->quote($this->getId(), 'integer') ."
1166 AND pass = " .$ilDB->quote($pass, 'integer') ."
1167 AND value1 like '\$r%'
1168 AND value2 is not null
1169 AND value2 <> ''
1170 ";
1171
1172 if( $this->getStep() !== NULL )
1173 {
1174 $query .= " AND step = " . $ilDB->quote((int)$this->getStep(), 'integer') . " ";
1175 }
1176
1177 $query .= "
1178 GROUP BY authorized
1179 ";
1180
1181 $result = $ilDB->query($query);
1182
1183 while ($row = $ilDB->fetchAssoc($result))
1184 {
1185 if ($row['authorized']) {
1186 $return['authorized'] = $row['cnt'] > 0;
1187 }
1188 else
1189 {
1190 $return['intermediate'] = $row['cnt'] > 0;
1191 }
1192 }
1193 return $return;
1194 }

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

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◆ parseQuestionText()

assFormulaQuestion::parseQuestionText ( )

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

154 {
155 $this->clearResults();
156 $this->clearVariables();
157 if(preg_match_all("/(\\\$v\\d+)/ims", $this->getQuestion(), $matches))
158 {
159 foreach($matches[1] as $variable)
160 {
161 $varObj = new assFormulaQuestionVariable($variable, 0, 0, null, 0);
162 $this->addVariable($varObj);
163 }
164 }
165
166 if(preg_match_all("/(\\\$r\\d+)/ims", $this->getQuestion(), $rmatches))
167 {
168 foreach($rmatches[1] as $result)
169 {
170 $resObj = new assFormulaQuestionResult($result, NULL, NULL, 0, -1, NULL, 1, 1, TRUE);
171 $this->addResult($resObj);
172 }
173 }
174 }

References $result, addResult(), addVariable(), clearResults(), clearVariables(), and assQuestion\getQuestion().

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◆ removeExistingSolutions()

assFormulaQuestion::removeExistingSolutions (   $activeId,
  $pass 
)

Remove an existing solution without removing the variables.

Parameters
int$activeId
int$pass
Returns
int

Reimplemented from assQuestion.

Definition at line 1204 of file class.assFormulaQuestion.php.

1205 {
1206 global $ilDB;
1207
1208 $query = "
1209 DELETE FROM tst_solutions
1210 WHERE active_fi = " . $ilDB->quote($activeId, 'integer') ."
1211 AND question_fi = ". $ilDB->quote($this->getId(), 'integer') ."
1212 AND pass = " .$ilDB->quote($pass, 'integer') ."
1213 AND value1 like '\$r%'
1214 ";
1215
1216 if( $this->getStep() !== NULL )
1217 {
1218 $query .= " AND step = " . $ilDB->quote((int)$this->getStep(), 'integer') . " ";
1219 }
1220
1221 return $ilDB->manipulate($query);
1222 }

References $ilDB, $pass, $query, assQuestion\getId(), and assQuestion\getStep().

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◆ reworkWorkingData()

assFormulaQuestion::reworkWorkingData (   $active_id,
  $pass,
  $obligationsAnswered,
  $authorized 
)
protected

{Reworks the allready saved working data if neccessary.

Parameters
integer$active_id
integer$pass
boolean$obligationsAnswered
boolean$authorized
}

Reimplemented from assQuestion.

Definition at line 1249 of file class.assFormulaQuestion.php.

1250 {
1251 // nothing to rework!
1252 }

◆ savePreviewData()

assFormulaQuestion::savePreviewData ( ilAssQuestionPreviewSession  $previewSession)
protected

Reimplemented from assQuestion.

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

1226 {
1227 $userSolution = $previewSession->getParticipantsSolution();
1228
1229 foreach($this->getSolutionSubmit() as $key => $val)
1230 {
1231 $matches = null;
1232
1233 if(preg_match("/^result_(\\\$r\\d+)$/", $key, $matches))
1234 {
1235 $userSolution[$matches[1]] = $val;
1236 }
1237 else if(preg_match("/^result_(\\\$r\\d+)_unit$/", $key, $matches))
1238 {
1239 $userSolution[$matches[1] . "_unit"] = $val;
1240 }
1241 }
1242
1243 $previewSession->setParticipantsSolution($userSolution);
1244 }

References ilAssQuestionPreviewSession\getParticipantsSolution(), getSolutionSubmit(), and ilAssQuestionPreviewSession\setParticipantsSolution().

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◆ saveToDb()

assFormulaQuestion::saveToDb (   $original_id = "")

Saves a assFormulaQuestion object to a database @access public.

Reimplemented from assQuestion.

Definition at line 621 of file class.assFormulaQuestion.php.

622 {
623 global $ilDB;
624
625 $this->saveQuestionDataToDb($original_id);
626 // save variables
627 $affectedRows = $ilDB->manipulateF("
628 DELETE FROM il_qpl_qst_fq_var
629 WHERE question_fi = %s",
630 array("integer"),
631 array($this->getId())
632 );
633
634 foreach($this->variables as $variable)
635 {
636 $next_id = $ilDB->nextId('il_qpl_qst_fq_var');
637 $ilDB->insert('il_qpl_qst_fq_var',
638 array(
639 'variable_id' => array('integer', $next_id),
640 'question_fi' => array('integer', $this->getId()),
641 'variable' => array('text', $variable->getVariable()),
642 'range_min' => array('float', ((strlen($variable->getRangeMin())) ? $variable->getRangeMin() : 0.0)),
643 'range_max' => array('float', ((strlen($variable->getRangeMax())) ? $variable->getRangeMax() : 0.0)),
644 'unit_fi' => array('integer', (is_object($variable->getUnit()) ? (int)$variable->getUnit()->getId() : 0)),
645 'varprecision' => array('integer', (int)$variable->getPrecision()),
646 'intprecision' => array('integer', (int)$variable->getIntprecision()),
647 'range_min_txt' => array('text', $variable->getRangeMinTxt()),
648 'range_max_txt' => array('text', $variable->getRangeMaxTxt())
649 ));
650
651 }
652 // save results
653 $affectedRows = $ilDB->manipulateF("DELETE FROM il_qpl_qst_fq_res WHERE question_fi = %s",
654 array("integer"),
655 array($this->getId())
656 );
657
658 foreach($this->results as $result)
659 {
660 $next_id = $ilDB->nextId('il_qpl_qst_fq_res');
661 if( is_object($result->getUnit()))
662 {
663 $tmp_result_unit = $result->getUnit()->getId();
664 }
665 else
666 {
667 $tmp_result_unit = NULL;
668 }
669
670 $formula = str_replace(",", ".", $result->getFormula());
671
672 $ilDB->insert("il_qpl_qst_fq_res", array(
673 "result_id" => array("integer", $next_id),
674 "question_fi" => array("integer", $this->getId()),
675 "result" => array("text", $result->getResult()),
676 "range_min" => array("float", ((strlen($result->getRangeMin())) ? $result->getRangeMin() : 0)),
677 "range_max" => array("float", ((strlen($result->getRangeMax())) ? $result->getRangeMax() : 0)),
678 "tolerance" => array("float", ((strlen($result->getTolerance())) ? $result->getTolerance() : 0)),
679 "unit_fi" => array("integer", (int)$tmp_result_unit),
680 "formula" => array("clob", $formula),
681 "resprecision" => array("integer", $result->getPrecision()),
682 "rating_simple" => array("integer", ($result->getRatingSimple()) ? 1 : 0),
683 "rating_sign" => array("float", ($result->getRatingSimple()) ? 0 : $result->getRatingSign()),
684 "rating_value" => array("float", ($result->getRatingSimple()) ? 0 : $result->getRatingValue()),
685 "rating_unit" => array("float", ($result->getRatingSimple()) ? 0 : $result->getRatingUnit()),
686 "points" => array("float", $result->getPoints()),
687 "result_type" => array('integer', (int)$result->getResultType()),
688 "range_min_txt" => array("text", $result->getRangeMinTxt()),
689 "range_max_txt" => array("text", $result->getRangeMaxTxt())
690
691 ));
692 }
693 // save result units
694 $affectedRows = $ilDB->manipulateF("DELETE FROM il_qpl_qst_fq_res_unit WHERE question_fi = %s",
695 array("integer"),
696 array($this->getId())
697 );
698 foreach($this->results as $result)
699 {
700 foreach($this->getResultUnits($result) as $unit)
701 {
702 $next_id = $ilDB->nextId('il_qpl_qst_fq_res_unit');
703 $affectedRows = $ilDB->manipulateF("INSERT INTO il_qpl_qst_fq_res_unit (result_unit_id, question_fi, result, unit_fi) VALUES (%s, %s, %s, %s)",
704 array('integer', 'integer', 'text', 'integer'),
705 array(
706 $next_id,
707 $this->getId(),
708 $result->getResult(),
709 $unit->getId()
710 )
711 );
712 }
713 }
714
715 parent::saveToDb();
716 }
assQuestion\saveQuestionDataToDb
saveQuestionDataToDb($original_id="")
Definition: class.assQuestion.php:2625

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

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◆ saveWorkingData()

assFormulaQuestion::saveWorkingData (   $active_id,
  $pass = NULL,
  $authorized = true 
)

Saves the learners input of the question to the database.

Parameters
integer$test_idThe database id of the test containing this question
Returns
boolean Indicates the save status (true if saved successful, false otherwise) @access public
See also
$answers

Reimplemented from assQuestion.

Definition at line 1044 of file class.assFormulaQuestion.php.

1045 {
1046 global $ilDB;
1047
1048 if(is_null($pass))
1049 {
1050 include_once "./Modules/Test/classes/class.ilObjTest.php";
1051 $pass = ilObjTest::_getPass($active_id);
1052 }
1053
1054 $entered_values = false;
1055
1056 $this->getProcessLocker()->executeUserSolutionUpdateLockOperation(function() use (&$entered_values, $ilDB, $active_id, $pass, $authorized) {
1057
1058 $solutionSubmit = $this->getSolutionSubmit();
1059 foreach($solutionSubmit as $key => $value)
1060 {
1061 $matches = null;
1062 if(preg_match("/^result_(\\\$r\\d+)$/", $key, $matches))
1063 {
1064 if(strlen($value))
1065 {
1066 $entered_values = TRUE;
1067 }
1068
1069 $queryResult = "SELECT solution_id FROM tst_solutions WHERE active_fi = %s AND pass = %s AND question_fi = %s AND authorized = %s AND " . $ilDB->like('value1', 'clob', $matches[1]);
1070
1071 if( $this->getStep() !== NULL )
1072 {
1073 $queryResult .= " AND step = " . $ilDB->quote((int)$this->getStep(), 'integer') . " ";
1074 }
1075
1076 $result = $ilDB->queryF(
1077 $queryResult,
1078 array('integer', 'integer', 'integer', 'integer'),
1079 array($active_id, $pass, $this->getId(), (int)$authorized)
1080 );
1081 if($result->numRows())
1082 {
1083 while($row = $ilDB->fetchAssoc($result))
1084 {
1085 $ilDB->manipulateF("DELETE FROM tst_solutions WHERE solution_id = %s AND authorized = %s",
1086 array('integer', 'integer'),
1087 array($row['solution_id'], (int)$authorized)
1088 );
1089 }
1090 }
1091
1092 $this->saveCurrentSolution($active_id,$pass,$matches[1],str_replace(",", ".", $value), $authorized);
1093 }
1094 else if(preg_match("/^result_(\\\$r\\d+)_unit$/", $key, $matches))
1095 {
1096 $queryResultUnit = "SELECT solution_id FROM tst_solutions WHERE active_fi = %s AND pass = %s AND question_fi = %s AND authorized = %s AND " . $ilDB->like('value1', 'clob', $matches[1] . "_unit");
1097
1098 if( $this->getStep() !== NULL )
1099 {
1100 $queryResultUnit .= " AND step = " . $ilDB->quote((int)$this->getStep(), 'integer') . " ";
1101 }
1102
1103 $result = $ilDB->queryF(
1104 $queryResultUnit,
1105 array('integer', 'integer', 'integer', 'integer'),
1106 array($active_id, $pass, $this->getId(), (int)$authorized)
1107 );
1108 if($result->numRows())
1109 {
1110 while($row = $ilDB->fetchAssoc($result))
1111 {
1112 $ilDB->manipulateF("DELETE FROM tst_solutions WHERE solution_id = %s AND authorized = %s",
1113 array('integer', 'integer'),
1114 array($row['solution_id'], (int)$authorized)
1115 );
1116 }
1117 }
1118
1119 $this->saveCurrentSolution($active_id,$pass,$matches[1] . "_unit",$value, $authorized);
1120 }
1121 }
1122
1123 });
1124
1125 if($entered_values)
1126 {
1127 include_once ("./Modules/Test/classes/class.ilObjAssessmentFolder.php");
1128 if(ilObjAssessmentFolder::_enabledAssessmentLogging())
1129 {
1130 assQuestion::logAction($this->lng->txtlng("assessment", "log_user_entered_values", ilObjAssessmentFolder::_getLogLanguage()), $active_id, $this->getId());
1131 }
1132 }
1133 else
1134 {
1135 include_once ("./Modules/Test/classes/class.ilObjAssessmentFolder.php");
1136 if(ilObjAssessmentFolder::_enabledAssessmentLogging())
1137 {
1138 assQuestion::logAction($this->lng->txtlng("assessment", "log_user_not_entered_values", ilObjAssessmentFolder::_getLogLanguage()), $active_id, $this->getId());
1139 }
1140 }
1141
1142 return true;
1143 }
assQuestion\saveCurrentSolution
saveCurrentSolution($active_id, $pass, $value1, $value2, $authorized=true, $tstamp=null)
Definition: class.assQuestion.php:4989
assQuestion\logAction
static logAction($logtext="", $active_id="", $question_id="")
Logs an action into the Test&Assessment log.
Definition: class.assQuestion.php:1600
ilObjAssessmentFolder\_getLogLanguage
static _getLogLanguage()
retrieve the log language for assessment logging
Definition: class.ilObjAssessmentFolder.php:168
ilObjAssessmentFolder\_enabledAssessmentLogging
static _enabledAssessmentLogging()
check wether assessment logging is enabled or not
Definition: class.ilObjAssessmentFolder.php:123
ilObjTest\_getPass
static _getPass($active_id)
Retrieves the actual pass of a given user for a given test.
Definition: class.ilObjTest.php:8174

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

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◆ setExportDetailsXLS()

assFormulaQuestion::setExportDetailsXLS (   $worksheet,
  $startrow,
  $active_id,
  $pass 
)

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

Parameters
object$worksheetReference to the parent excel worksheet
object$startrowStartrow of the output in the excel worksheet
object$active_idActive id of the participant
object$passTest pass
Returns
object
}

Reimplemented from assQuestion.

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

1330 {
1331 parent::setExportDetailsXLS($worksheet, $startrow, $active_id, $pass);
1332
1333 $solution = $this->getSolutionValues($active_id, $pass);
1334
1335 $i = 1;
1336 foreach($solution as $solutionvalue)
1337 {
1338 $worksheet->setCell($startrow + $i, 0,$solutionvalue["value1"]);
1339 $worksheet->setBold($worksheet->getColumnCoord(0) . ($startrow + $i));
1340 if(strpos($solutionvalue["value1"], "_unit"))
1341 {
1342 $unit = $this->getUnitrepository()->getUnit($solutionvalue["value2"]);
1343 if(is_object($unit))
1344 {
1345 $worksheet->setCell($startrow + $i, 1, $unit->getUnit());
1346 }
1347 }
1348 else
1349 {
1350 $worksheet->setCell($startrow + $i, 1, $solutionvalue["value2"]);
1351 }
1352 if(preg_match("/(\\\$v\\d+)/", $solutionvalue["value1"], $matches))
1353 {
1354 $var = $this->getVariable($solutionvalue["value1"]);
1355 if(is_object($var) && (is_object($var->getUnit())))
1356 {
1357 $worksheet->setCell($startrow + $i, 2, $var->getUnit()->getUnit());
1358 }
1359 }
1360 $i++;
1361 }
1362
1363 return $startrow + $i + 1;
1364 }
$worksheet
$worksheet
Definition: 40duplicateStyle.php:17

References $pass, $worksheet, assQuestion\getSolutionValues(), getUnitrepository(), and getVariable().

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◆ setId()

assFormulaQuestion::setId (   $id = -1)

Sets the id of the assQuestion object.

Parameters
integer$idA unique integer value @access public
See also
$id

Reimplemented from assQuestion.

Definition at line 1455 of file class.assFormulaQuestion.php.

1456 {
1457 parent::setId($id);
1458 $this->unitrepository->setConsumerId($this->getId());
1459 }

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

Referenced by loadFromDb().

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◆ setUnitrepository()

assFormulaQuestion::setUnitrepository (   $unitrepository)
Parameters
\ilUnitConfigurationRepository$unitrepository

Definition at line 1480 of file class.assFormulaQuestion.php.

1481 {
1482 $this->unitrepository = $unitrepository;
1483 }

References $unitrepository.

◆ substituteVariables()

assFormulaQuestion::substituteVariables ( array  $userdata,
  $graphicalOutput = FALSE,
  $forsolution = FALSE,
  $result_output = FALSE 
)
Parameters
array$userdata
bool$graphicalOutput
bool$forsolution
bool$result_output
ilAssQuestionPreviewSession | null$previewSession
Returns
bool|mixed|string

Definition at line 284 of file class.assFormulaQuestion.php.

285 {
286 if((count($this->results) == 0) && (count($this->variables) == 0))
287 return false;
288
289 $text = $this->getQuestion();
290
291 foreach($this->fetchAllVariables($this->getQuestion()) as $varObj)
292 {
293 if( isset($userdata[$varObj->getVariable()]) && strlen($userdata[$varObj->getVariable()]) )
294 {
295 $varObj->setValue( $userdata[$varObj->getVariable()] );
296 }
297
298 $unit = (is_object($varObj->getUnit())) ? $varObj->getUnit()->getUnit() : "";
299 $val = (strlen($varObj->getValue()) > 8) ? strtoupper(sprintf("%e", $varObj->getValue())) : $varObj->getValue();
300
301 $text = preg_replace("/\\$" . substr($varObj->getVariable(), 1) . "(?![0-9]+)/", $val . " " . $unit . "\\1", $text);
302 }
303
304 if(preg_match_all("/(\\\$r\\d+)/ims", $this->getQuestion(), $rmatches))
305 {
306 foreach($rmatches[1] as $result)
307 {
308 $resObj = $this->getResult($result);
309 $value = "";
310 $frac_helper = '';
311 $user_data[$result]['result_type'] = $resObj->getResultType();
312
313 if(
314 $resObj->getResultType() == assFormulaQuestionResult::RESULT_FRAC ||
315 $resObj->getResultType() == assFormulaQuestionResult::RESULT_CO_FRAC
316 )
317 {
318 $is_frac = true;
319 }
320 if(is_array($userdata))
321 {
322 if(is_array($userdata[$result]))
323 {
324 if($forsolution && $result_output)
325 {
326 $value_org = $resObj->calculateFormula($this->getVariables(), $this->getResults(), parent::getId());
327 $value = sprintf("%." . $resObj->getPrecision() . "f", $value_org);
328 if($is_frac)
329 {
330 $value = assFormulaQuestionResult::convertDecimalToCoprimeFraction($value_org);
331 if(is_array($value))
332 {
333 $frac_helper = $value[1];
334 $value = $value[0];
335 }
336 }
337 }
338 else
339 {
340 if($forsolution)
341 {
342 $value = $userdata[$result]["value"];
343 }
344 else
345 {
346 $value = ' value="' . $userdata[$result]["value"] . '"';
347 }
348 }
349 }
350 }
351 else
352 {
353 if($forsolution)
354 {
355 $value = $resObj->calculateFormula($this->getVariables(), $this->getResults(), parent::getId());
356 $value = sprintf("%." . $resObj->getPrecision() . "f", $value);
357
358 if($is_frac)
359 {
360 $value = assFormulaQuestionResult::convertDecimalToCoprimeFraction($value);
361 if(is_array($value))
362 {
363 $frac_helper = $value[1];
364 $value = $value[0];
365 }
366 $value = ' value="' . $value . '"';
367 }
368 }
369 else
370 {
371 // Precision fix for Preview by tjoussen
372 // If all default values are set, this function is called in getPreview
373 $use_precision = !($userdata == null && $graphicalOutput == FALSE && $forsolution == FALSE && $result_output == FALSE);
374
375 $val = $resObj->calculateFormula($this->getVariables(), $this->getResults(), parent::getId(), $use_precision);
376
377 if($resObj->getResultType() == assFormulaQuestionResult::RESULT_FRAC
378 ||$resObj->getResultType() == assFormulaQuestionResult::RESULT_CO_FRAC)
379 {
380 $val = $resObj->convertDecimalToCoprimeFraction($val);
381 if(is_array($val))
382 {
383 $frac_helper = $val[1];
384 $val = $val[0];
385 }
386 }
387 else
388 {
389 $val = sprintf("%." . $resObj->getPrecision() . "f", $val);
390 $val = (strlen($val) > 8) ? strtoupper(sprintf("%e", $val)) : $val;
391 }
392 $value = ' value="' . $val . '"';
393 }
394 }
395
396 if($forsolution)
397 {
398 $input = '<span class="ilc_qinput_TextInput solutionbox">' . ilUtil::prepareFormOutput($value) . '</span>';
399 }
400 else
401 {
402 $input = '<input class="ilc_qinput_TextInput" type="text" spellcheck="false" autocomplete="off" autocorrect="off" autocapitalize="off" name="result_' . $result . '"' . $value . ' />';
403 }
404
405 $units = "";
406 if(count($this->getResultUnits($resObj)) > 0)
407 {
408 if($forsolution)
409 {
410 if(is_array($userdata))
411 {
412 foreach($this->getResultUnits($resObj) as $unit)
413 {
414 if($userdata[$result]["unit"] == $unit->getId())
415 {
416 $units = $unit->getUnit();
417 }
418 }
419 }
420 else
421 {
422 if($resObj->getUnit())
423 {
424 $units = $resObj->getUnit()->getUnit();
425 }
426 }
427 }
428 else
429 {
430 $units = '<select name="result_' . $result . '_unit">';
431 $units .= '<option value="-1">' . $this->lng->txt("select_unit") . '</option>';
432 foreach($this->getResultUnits($resObj) as $unit)
433 {
434 $units .= '<option value="' . $unit->getId() . '"';
435 if((is_array($userdata[$result])) && (strlen($userdata[$result]["unit"])))
436 {
437 if($userdata[$result]["unit"] == $unit->getId())
438 {
439 $units .= ' selected="selected"';
440 }
441 }
442 $units .= '>' . $unit->getUnit() . '</option>';
443 }
444 $units .= '</select>';
445 }
446 }
447 else
448 {
449 $units = "";
450 }
451 switch($resObj->getResultType())
452 {
453 case assFormulaQuestionResult::RESULT_DEC:
454 $units .= ' ' . $this->lng->txt('expected_result_type') . ': ' . $this->lng->txt('result_dec');
455 break;
456 case assFormulaQuestionResult::RESULT_FRAC:
457 if(strlen($frac_helper))
458 {
459 $units .= ' &asymp; ' . $frac_helper . ', ';
460 }
461 elseif (is_array($userdata) && isset($userdata[$result]) && strlen($userdata[$result]["frac_helper"]))
462 {
463 if(!preg_match('-/-', $value))
464 {
465 $units .= ' &asymp; ' . $userdata[$result]["frac_helper"] . ', ';
466 }
467 }
468 $units .= ' ' . $this->lng->txt('expected_result_type') . ': ' . $this->lng->txt('result_frac');
469 break;
470 case assFormulaQuestionResult::RESULT_CO_FRAC:
471 if(strlen($frac_helper))
472 {
473 $units .= ' &asymp; ' . $frac_helper . ', ';
474 }
475 elseif (is_array($userdata) && isset($userdata[$result]) && strlen($userdata[$result]["frac_helper"]))
476 {
477 if(!preg_match('-/-', $value))
478 {
479 $units .= ' &asymp; ' . $userdata[$result]["frac_helper"] . ', ';
480 }
481 }
482 $units .= ' ' . $this->lng->txt('expected_result_type') . ': ' . $this->lng->txt('result_co_frac');
483 break;
484 case assFormulaQuestionResult::RESULT_NO_SELECTION:
485 break;
486 }
487 $checkSign = "";
488 if($graphicalOutput)
489 {
490 $resunit = null;
491 $user_value = '';
492 if(is_array($userdata) && is_array($userdata[$result]))
493 {
494 if($userdata[$result]["unit"] > 0)
495 {
496 $resunit = $this->getUnitrepository()->getUnit($userdata[$result]["unit"]);
497 }
498
499 if(isset($userdata[$result]["value"]))
500 {
501 $user_value = $userdata[$result]["value"];
502 }
503 }
504
505 $template = new ilTemplate("tpl.il_as_qpl_formulaquestion_output_solution_image.html", true, true, 'Modules/TestQuestionPool');
506
507 if($resObj->isCorrect($this->getVariables(), $this->getResults(), $user_value, $resunit))
508 {
509 $template->setCurrentBlock("icon_ok");
510 $template->setVariable("ICON_OK", ilUtil::getImagePath("icon_ok.svg"));
511 $template->setVariable("TEXT_OK", $this->lng->txt("answer_is_right"));
512 $template->parseCurrentBlock();
513 }
514 else
515 {
516 $template->setCurrentBlock("icon_not_ok");
517 $template->setVariable("ICON_NOT_OK", ilUtil::getImagePath("icon_not_ok.svg"));
518 $template->setVariable("TEXT_NOT_OK", $this->lng->txt("answer_is_wrong"));
519 $template->parseCurrentBlock();
520 }
521 $checkSign = $template->get();
522 }
523 $resultOutput = "";
524 if($result_output)
525 {
526 $template = new ilTemplate("tpl.il_as_qpl_formulaquestion_output_solution_result.html", true, true, 'Modules/TestQuestionPool');
527
528 if(is_array($userdata))
529 {
530 $found = $resObj->getResultInfo($this->getVariables(), $this->getResults(), $userdata[$resObj->getResult()]["value"], $userdata[$resObj->getResult()]["unit"], $this->getUnitrepository()->getUnits());
531 }
532 else
533 {
534 $found = $resObj->getResultInfo($this->getVariables(), $this->getResults(), $resObj->calculateFormula($this->getVariables(), $this->getResults(), parent::getId()), is_object($resObj->getUnit()) ? $resObj->getUnit()->getId() : NULL, $this->getUnitrepository()->getUnits());
535 }
536 $resulttext = "(";
537 if($resObj->getRatingSimple())
538 {
539 if($frac_helper)
540 {
541 $resulttext .="n/a";
542 }
543 else
544 {
545 $resulttext .= $found['points'] . " " . (($found['points'] == 1) ? $this->lng->txt('point') : $this->lng->txt('points'));
546 }
547 }
548 else
549 {
550 $resulttext .= $this->lng->txt("rated_sign") . " " . (($found['sign']) ? $found['sign'] : 0) . " " . (($found['sign'] == 1) ? $this->lng->txt('point') : $this->lng->txt('points')) . ", ";
551 $resulttext .= $this->lng->txt("rated_value") . " " . (($found['value']) ? $found['value'] : 0) . " " . (($found['value'] == 1) ? $this->lng->txt('point') : $this->lng->txt('points')) . ", ";
552 $resulttext .= $this->lng->txt("rated_unit") . " " . (($found['unit']) ? $found['unit'] : 0) . " " . (($found['unit'] == 1) ? $this->lng->txt('point') : $this->lng->txt('points'));
553 }
554
555 $resulttext .= ")";
556 $template->setVariable("RESULT_OUTPUT", $resulttext);
557
558 $resultOutput = $template->get();
559 }
560 $text = preg_replace("/\\\$" . substr($result, 1) . "(?![0-9]+)/", $input . " " . $units . " " . $checkSign . " " . $resultOutput . " " . "\\1", $text);
561 }
562 }
563 return $text;
564 }
sprintf
sprintf('%.4f', $callTime)
Definition: 01pharSimple.php:87
ilTemplate
special template class to simplify handling of ITX/PEAR
Definition: class.ilTemplate.php:14
ilUtil\getImagePath
static getImagePath($img, $module_path="", $mode="output", $offline=false)
get image path (for images located in a template directory)
Definition: class.ilUtil.php:71
ilUtil\prepareFormOutput
static prepareFormOutput($a_str, $a_strip=false)
prepares string output for html forms @access public
Definition: class.ilUtil.php:3060

References $result, $text, assFormulaQuestionResult\convertDecimalToCoprimeFraction(), fetchAllVariables(), ilUtil\getImagePath(), assQuestion\getQuestion(), getResult(), getResults(), getResultUnits(), getUnitrepository(), getVariables(), ilUtil\prepareFormOutput(), assFormulaQuestionResult\RESULT_CO_FRAC, assFormulaQuestionResult\RESULT_DEC, assFormulaQuestionResult\RESULT_FRAC, assFormulaQuestionResult\RESULT_NO_SELECTION, and sprintf.

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◆ validateSolutionSubmit()

assFormulaQuestion::validateSolutionSubmit ( )

Reimplemented from assQuestion.

Definition at line 1513 of file class.assFormulaQuestion.php.

1514 {
1515 foreach($this->getSolutionSubmit() as $key => $value)
1516 {
1517 if(preg_match("/^result_(\\\$r\\d+)$/", $key))
1518 {
1519 if( strlen($value) && !$this->isValidSolutionResultValue($value) )
1520 {
1521 ilUtil::sendFailure($this->lng->txt("err_no_numeric_value"), true);
1522 return false;
1523 }
1524 }
1525 elseif(preg_match("/^result_(\\\$r\\d+)_unit$/", $key))
1526 {
1527 continue;
1528 }
1529 }
1530
1531 return true;
1532 }
assFormulaQuestion\isValidSolutionResultValue
isValidSolutionResultValue($submittedValue)
Definition: class.assFormulaQuestion.php:1020
ilUtil\sendFailure
static sendFailure($a_info="", $a_keep=false)
Send Failure Message to Screen.
Definition: class.ilUtil.php:4771

References getSolutionSubmit(), isValidSolutionResultValue(), and ilUtil\sendFailure().

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Field Documentation

◆ $results

assFormulaQuestion::$results
private

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

Referenced by getResults().

◆ $resultunits

assFormulaQuestion::$resultunits
private

Definition at line 23 of file class.assFormulaQuestion.php.

Referenced by __get().

◆ $unitrepository

assFormulaQuestion::$unitrepository
private

Definition at line 28 of file class.assFormulaQuestion.php.

Referenced by getUnitrepository(), and setUnitrepository().

◆ $variables

assFormulaQuestion::$variables
private

Definition at line 21 of file class.assFormulaQuestion.php.

Referenced by getVariables().

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