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assFileUpload Class Reference
Modules/TestQuestionPool

Class for file upload questions. More...

+ Inheritance diagram for assFileUpload:
+ Collaboration diagram for assFileUpload:

Public Member Functions

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

Protected Member Functions

 getFileUploadPath ($test_id, $active_id, $question_id=null)
 Returns the filesystem path for file uploads.
 deleteUploadedFiles ($files, $test_id, $active_id)
 Delete uploaded files.
- Protected Member Functions inherited from assQuestion
 deletePageOfQuestion ($question_id)
 Deletes the page object of a question with a given ID.
 onDuplicate ($source_question_id)
 Will be called when a question is duplicated (inside a question pool or for insertion in a test)
 onCopy ($source_questionpool_id, $source_question_id)
 Will be called when a question is copied (into another question pool)
 duplicateSuggestedSolutionFiles ($question_id)
 Duplicates the files of a suggested solution if the question is duplicated.
 syncSuggestedSolutionFiles ($original_id)
 Syncs the files of a suggested solution if the question is synced.
 copySuggestedSolutionFiles ($source_questionpool_id, $source_question_id)

Protected Attributes

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

Additional Inherited Members

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

Detailed Description

Class for file upload 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.assFileUpload.php 22493 2009-12-07 14:20:23Z hschottm

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

Constructor & Destructor Documentation

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

assFileUpload constructor

The constructor takes possible arguments an creates an instance of the assFileUpload 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
See Also
assQuestion:__construct()

Reimplemented from assQuestion.

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

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

{
parent::__construct($title, $comment, $author, $owner, $question);
}

Member Function Documentation

assFileUpload::__get (   $value)

Object getter.

Reimplemented from assQuestion.

Definition at line 784 of file class.assFileUpload.php.

References getAllowedExtensions(), and getMaxSize().

{
switch ($value)
{
case "maxsize":
return $this->getMaxSize();
break;
case "allowedextensions":
return $this->getAllowedExtensions();
break;
default:
return parent::__get($value);
break;
}
}

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assFileUpload::__set (   $key,
  $value 
)

Object setter.

Reimplemented from assQuestion.

Definition at line 803 of file class.assFileUpload.php.

References setAllowedExtensions(), and setMaxSize().

{
switch ($key)
{
case "maxsize":
$this->setMaxSize($value);
break;
case "allowedextensions":
$this->setAllowedExtensions($value);
break;
default:
parent::__set($key, $value);
break;
}
}

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assFileUpload::calculateReachedPoints (   $active_id,
  $pass = NULL 
)

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

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

Definition at line 244 of file class.assFileUpload.php.

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

{
global $ilDB;
if (is_null($pass))
{
$pass = $this->getSolutionMaxPass($active_id);
}
$points = 0;
$points = parent::calculateReachedPoints($active_id, $pass = NULL, $points);
return $points;
}

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assFileUpload::checkUpload ( )

Check file upload.

Returns
boolean Input ok, true/false

Definition at line 262 of file class.assFileUpload.php.

References $filename, getAllowedExtensionsArray(), getMaxFilesizeInBytes(), ilUtil\sendInfo(), and ilUtil\virusHandling().

Referenced by saveWorkingData().

{
$this->lng->loadLanguageModule("form");
// remove trailing '/'
while (substr($_FILES["upload"]["name"],-1) == '/')
{
$_FILES["upload"]["name"] = substr($_FILES["upload"]["name"],0,-1);
}
$filename = $_FILES["upload"]["name"];
$filename_arr = pathinfo($_FILES["upload"]["name"]);
$suffix = $filename_arr["extension"];
$mimetype = $_FILES["upload"]["type"];
$size_bytes = $_FILES["upload"]["size"];
$temp_name = $_FILES["upload"]["tmp_name"];
$error = $_FILES["upload"]["error"];
if ($size_bytes > $this->getMaxFilesizeInBytes())
{
ilUtil::sendInfo($this->lng->txt("form_msg_file_size_exceeds"), true);
return false;
}
// error handling
if ($error > 0)
{
switch ($error)
{
case UPLOAD_ERR_INI_SIZE:
ilUtil::sendInfo($this->lng->txt("form_msg_file_size_exceeds"), true);
return false;
break;
case UPLOAD_ERR_FORM_SIZE:
ilUtil::sendInfo($this->lng->txt("form_msg_file_size_exceeds"), true);
return false;
break;
case UPLOAD_ERR_PARTIAL:
ilUtil::sendInfo($this->lng->txt("form_msg_file_partially_uploaded"), true);
return false;
break;
case UPLOAD_ERR_NO_FILE:
ilUtil::sendInfo($this->lng->txt("form_msg_file_no_upload"), true);
return false;
break;
case UPLOAD_ERR_NO_TMP_DIR:
ilUtil::sendInfo($this->lng->txt("form_msg_file_missing_tmp_dir"), true);
return false;
break;
case UPLOAD_ERR_CANT_WRITE:
ilUtil::sendInfo($this->lng->txt("form_msg_file_cannot_write_to_disk"), true);
return false;
break;
case UPLOAD_ERR_EXTENSION:
ilUtil::sendInfo($this->lng->txt("form_msg_file_upload_stopped_ext"), true);
return false;
break;
}
}
// check suffixes
if (strlen($suffix) && count($this->getAllowedExtensionsArray()))
{
if (!in_array(strtolower($suffix), $this->getAllowedExtensionsArray()))
{
ilUtil::sendInfo($this->lng->txt("form_msg_file_wrong_file_type"), true);
return false;
}
}
// virus handling
if (strlen($temp_name))
{
$vir = ilUtil::virusHandling($temp_name, $filename);
if ($vir[0] == false)
{
ilUtil::sendInfo($this->lng->txt("form_msg_file_virus_found")."<br />".$vir[1], true);
return false;
}
}
return true;
}

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

Copies an assFileUpload object.

Definition at line 194 of file class.assFileUpload.php.

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

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

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assFileUpload::deleteAnswers (   $question_id)

Deletes datasets from answers tables.

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

Reimplemented from assQuestion.

Definition at line 639 of file class.assFileUpload.php.

{
}
assFileUpload::deleteUploadedFiles (   $files,
  $test_id,
  $active_id 
)
protected

Delete uploaded files.

Parameters
arrayArray with ID's of the file datasets

Definition at line 428 of file class.assFileUpload.php.

References $data, $files, $ilDB, $pass, $result, assQuestion\$test_id, and getFileUploadPath().

Referenced by saveWorkingData().

{
global $ilDB;
$pass = null;
$active_id = null;
foreach ($files as $solution_id)
{
$result = $ilDB->queryF("SELECT * FROM tst_solutions WHERE solution_id = %s",
array("integer"),
array($solution_id)
);
if ($result->numRows() == 1)
{
$data = $ilDB->fetchAssoc($result);
$pass = $data['pass'];
$active_id = $data['active_fi'];
@unlink($this->getFileUploadPath($test_id, $active_id) . $data['value1']);
}
}
foreach ($files as $solution_id)
{
$affectedRows = $ilDB->manipulateF("DELETE FROM tst_solutions WHERE solution_id = %s",
array("integer"),
array($solution_id)
);
}
}

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

Duplicates an assFileUpload.

Definition at line 144 of file class.assFileUpload.php.

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

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

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assFileUpload::fromXML ( &  $item,
&  $questionpool_id,
&  $tst_id,
&  $tst_object,
&  $question_counter,
&  $import_mapping 
)

Creates a question from a QTI file.

Receives parameters from a QTI parser and creates a valid ILIAS question object

Parameters
object$itemThe QTI item object
integer$questionpool_idThe id of the parent questionpool
integer$tst_idThe id of the parent test if the question is part of a test
object$tst_objectA reference to the parent test object
integer$question_counterA reference to a question counter to count the questions of an imported question pool
array$import_mappingAn array containing references to included ILIAS objects

Reimplemented from assQuestion.

Definition at line 696 of file class.assFileUpload.php.

{
include_once "./Modules/TestQuestionPool/classes/import/qti12/class.assFileUploadImport.php";
$import = new assFileUploadImport($this);
$import->fromXML($item, $questionpool_id, $tst_id, $tst_object, $question_counter, $import_mapping);
}
assFileUpload::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 619 of file class.assFileUpload.php.

Referenced by loadFromDb(), and saveToDb().

{
return "qpl_qst_fileupload";
}

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assFileUpload::getAllowedExtensions ( )

Get allowed file extensions.

Returns
string Allowed file extensions

Definition at line 766 of file class.assFileUpload.php.

References $allowedextensions.

Referenced by __get(), and saveToDb().

{
return $this->allowedextensions;
}

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assFileUpload::getAllowedExtensionsArray ( )

Get allowed file extensions.

Returns
array Allowed file extensions

Definition at line 752 of file class.assFileUpload.php.

Referenced by checkUpload().

{
if (strlen($this->allowedextensions))
{
return split(",", $this->allowedextensions);
}
return array();
}

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assFileUpload::getAnswerTableName ( )

Returns the name of the answer table in the database.

Returns
string The answer table name

Reimplemented from assQuestion.

Definition at line 629 of file class.assFileUpload.php.

{
return "";
}
assFileUpload::getBestSolution (   $active_id,
  $pass 
)

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

Returns
array An associated array containing the best solution

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

{
$user_solution = array();
return $user_solution;
}
assFileUpload::getFileUploadPath (   $test_id,
  $active_id,
  $question_id = null 
)
protected

Returns the filesystem path for file uploads.

Definition at line 353 of file class.assFileUpload.php.

References assQuestion\getId().

Referenced by deleteUploadedFiles(), getFileUploadZIPFile(), and saveWorkingData().

{
if (is_null($question_id)) $question_id = $this->getId();
return CLIENT_WEB_DIR . "/assessment/tst_$test_id/$active_id/$question_id/files/";
}

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assFileUpload::getFileUploadPathWeb (   $test_id,
  $active_id,
  $question_id = null 
)

Returns the file upload path for web accessible files of a question.

public

Definition at line 364 of file class.assFileUpload.php.

References assQuestion\getId(), ILIAS_ABSOLUTE_PATH, and ilUtil\removeTrailingPathSeparators().

Referenced by getUploadedFilesForWeb().

{
if (is_null($question_id)) $question_id = $this->getId();
include_once "./Services/Utilities/classes/class.ilUtil.php";
$webdir = ilUtil::removeTrailingPathSeparators(CLIENT_WEB_DIR) . "/assessment/tst_$test_id/$active_id/$question_id/files/";
return str_replace(ilUtil::removeTrailingPathSeparators(ILIAS_ABSOLUTE_PATH), ilUtil::removeTrailingPathSeparators(ILIAS_HTTP_PATH), $webdir);
}

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assFileUpload::getFileUploadZIPFile (   $test_id)

Generates a ZIP file containing all file uploads for a given test and the original id of the question.

Definition at line 844 of file class.assFileUpload.php.

References $data, $ilDB, $ilLog, $result, $row, assQuestion\$test_id, ilObjTestAccess\_getParticipantData(), ilUtil\delDir(), ilUtil\deliverFile(), ilFormat\fmtDateTime(), ilUtil\getASCIIFilename(), getFileUploadPath(), assQuestion\getId(), assQuestion\getTitle(), ilUtil\ilTempnam(), ilUtil\makeDirParents(), ilFormat\unixtimestamp2datetime(), and ilUtil\zip().

{
global $ilDB, $ilLog;
$result = $ilDB->queryF("SELECT tst_solutions.solution_id, tst_solutions.pass, tst_solutions.active_fi, tst_solutions.question_fi, tst_solutions.value1, tst_solutions.value2, tst_solutions.tstamp FROM tst_solutions, tst_active, qpl_questions WHERE tst_solutions.active_fi = tst_active.active_id AND tst_solutions.question_fi = qpl_questions.question_id AND qpl_questions.original_id = %s AND tst_active.test_fi = %s ORDER BY tst_solutions.active_fi, tst_solutions.tstamp",
array("integer", "integer"),
array($this->getId(), $test_id)
);
$zipfile = ilUtil::ilTempnam() . ".zip";
$tempdir = ilUtil::ilTempnam();
if ($result->numRows())
{
$userdata = array();
$data .= "<html><head>";
$data .= '<meta http-equiv="content-type" content="text/html; charset=UTF-8" />';
$data .= '<style>
table { border: 1px #333 solid; border-collapse:collapse;}
td, th { border: 1px #333 solid; padding: 0.25em;}
th { color: #fff; background-color: #666;}
</style>
';
$data .= "<title>" . $this->getTitle() . "</title></head><body>\n";
$data .= "<h1>" . $this->getTitle() . "</h1>\n";
$data .= "<table><thead>\n";
$data .= "<tr><th>" . $this->lng->txt("name") . "</th><th>" . $this->lng->txt("filename") . "</th><th>" . $this->lng->txt("pass") . "</th><th>" . $this->lng->txt("location") . "</th><th>" . $this->lng->txt("date") . "</th></tr></thead><tbody>\n";
while ($row = $ilDB->fetchAssoc($result))
{
ilUtil::makeDirParents($tempdir . "/" . $row["active_fi"]."/".$row["question_fi"]);
@copy($this->getFileUploadPath($test_id, $row["active_fi"], $row["question_fi"]) . $row["value1"], $tempdir . "/" . $row["active_fi"]."/".$row["question_fi"] . "/" . $row["value1"]);
if (!array_key_exists($row["active_fi"], $userdata))
{
include_once "./Modules/Test/classes/class.ilObjTestAccess.php";
$userdata[$row["active_fi"]] = ilObjTestAccess::_getParticipantData($row["active_fi"]);
}
$data .= "<tr><td>".$userdata[$row["active_fi"]]."</td><td><a href=\"".$row["active_fi"]."/".$row["question_fi"]."/".$row["value1"]."\" target=\"_blank\">".$row["value2"]."</a></td><td>".$row["pass"]."</td><td>".$row["active_fi"]."/".$row["question_fi"]."/".$row["value1"]."</td>";
$data .= "<td>" . ilFormat::fmtDateTime(ilFormat::unixtimestamp2datetime($row["tstamp"]), $this->lng->txt("lang_dateformat"), $this->lng->txt("lang_timeformat"), "datetime", FALSE) . "</td>";
$data .= "</tr>\n";
}
$data .= "</tbody></table>\n";
$data .= "</body></html>\n";
$indexfile = $tempdir . "/index.html";
$fh = fopen($indexfile, 'w');
fwrite($fh, $data);
fclose($fh);
}
ilUtil::zip($tempdir, $zipfile);
ilUtil::delDir($tempdir);
ilUtil::deliverFile($zipfile, ilUtil::getASCIIFilename($this->getTitle().".zip"), "application/zip", false, true);
}

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assFileUpload::getMaxFilesizeAsString ( )

Return the maximum allowed file size as string.

Returns
string The number of bytes of the maximum allowed file size

Definition at line 462 of file class.assFileUpload.php.

References $size, and getMaxFilesizeInBytes().

{
$size = $this->getMaxFilesizeInBytes();
if ($size < 1024)
{
$max_filesize = sprintf("%.1f Bytes",$size);
}
else if ($size < 1024*1024)
{
$max_filesize = sprintf("%.1f KB",$size/1024);
}
else
{
$max_filesize = sprintf("%.1f MB",$size/1024/1024);
}
return $max_filesize;
}

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assFileUpload::getMaxFilesizeInBytes ( )

Return the maximum allowed file size in bytes.

Returns
integer The number of bytes of the maximum allowed file size

Definition at line 486 of file class.assFileUpload.php.

References getMaxSize().

Referenced by checkUpload(), and getMaxFilesizeAsString().

{
if (strlen($this->getMaxSize()))
{
return $this->getMaxSize();
}
else
{
// get the value for the maximal uploadable filesize from the php.ini (if available)
$umf = get_cfg_var("upload_max_filesize");
// get the value for the maximal post data from the php.ini (if available)
$pms = get_cfg_var("post_max_size");
//convert from short-string representation to "real" bytes
$multiplier_a=array("K"=>1024, "M"=>1024*1024, "G"=>1024*1024*1024);
$umf_parts=preg_split("/(\d+)([K|G|M])/", $umf, -1, PREG_SPLIT_DELIM_CAPTURE|PREG_SPLIT_NO_EMPTY);
$pms_parts=preg_split("/(\d+)([K|G|M])/", $pms, -1, PREG_SPLIT_DELIM_CAPTURE|PREG_SPLIT_NO_EMPTY);
if (count($umf_parts) == 2) { $umf = $umf_parts[0]*$multiplier_a[$umf_parts[1]]; }
if (count($pms_parts) == 2) { $pms = $pms_parts[0]*$multiplier_a[$pms_parts[1]]; }
// use the smaller one as limit
$max_filesize = min($umf, $pms);
if (!$max_filesize) $max_filesize=max($umf, $pms);
return $max_filesize;
}
}

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assFileUpload::getMaximumPoints ( )

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

See Also
$points

Reimplemented from assQuestion.

Definition at line 231 of file class.assFileUpload.php.

References assQuestion\getPoints().

Referenced by isComplete().

{
return $this->getPoints();
}

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assFileUpload::getMaxSize ( )

Get max file size.

Returns
double Max file size

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

References $maxsize.

Referenced by __get(), getMaxFilesizeInBytes(), and saveToDb().

{
return $this->maxsize;
}

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assFileUpload::getQuestionType ( )

Returns the question type of the question.

Returns
integer The question type of the question

Reimplemented from assQuestion.

Definition at line 609 of file class.assFileUpload.php.

{
return "assFileUpload";
}
assFileUpload::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 647 of file class.assFileUpload.php.

{
$text = parent::getRTETextWithMediaObjects();
return $text;
}
assFileUpload::getUploadedFiles (   $active_id,
  $pass = null 
)

Returns the uploaded files for an active user in a given pass.

Returns
array Results

Definition at line 377 of file class.assFileUpload.php.

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

Referenced by getUploadedFilesForWeb().

{
global $ilDB;
if (is_null($pass))
{
$pass = $this->getSolutionMaxPass($active_id);
}
$result = $ilDB->queryF("SELECT * FROM tst_solutions WHERE active_fi = %s AND question_fi = %s AND pass = %s ORDER BY tstamp",
array("integer", "integer", "integer"),
array($active_id, $this->getId(), $pass)
);
$found = array();
while ($data = $ilDB->fetchAssoc($result))
{
array_push($found, $data);
}
return $found;
}

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assFileUpload::getUploadedFilesForWeb (   $active_id,
  $pass 
)

Returns the web accessible uploaded files for an active user in a given pass.

Returns
array Results

Definition at line 401 of file class.assFileUpload.php.

References $data, $ilDB, $pass, $path, $result, $row, assQuestion\$test_id, getFileUploadPathWeb(), and getUploadedFiles().

{
global $ilDB;
$found = $this->getUploadedFiles($active_id, $pass);
$result = $ilDB->queryF("SELECT test_fi FROM tst_active WHERE active_id = %s",
array('integer'),
array($active_id)
);
if ($result->numRows() == 1)
{
$row = $ilDB->fetchAssoc($result);
$test_id = $row["test_fi"];
$path = $this->getFileUploadPathWeb($test_id, $active_id);
foreach ($found as $idx => $data)
{
$found[$idx]['webpath'] = $path;
}
}
return $found;
}

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assFileUpload::hasFileUploads (   $test_id)

Checks if file uploads exist for a given test and the original id of the question.

Returns
boolean TRUE if file uploads exist, FALSE otherwise

Definition at line 824 of file class.assFileUpload.php.

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

{
global $ilDB;
$result = $ilDB->queryF("SELECT tst_solutions.solution_id FROM tst_solutions, tst_active, qpl_questions WHERE tst_solutions.active_fi = tst_active.active_id AND tst_solutions.question_fi = qpl_questions.question_id AND qpl_questions.original_id = %s AND tst_active.test_fi = %s",
array("integer", "integer"),
array($this->getId(), $test_id)
);
if ($result->numRows() > 0)
{
return true;
}
else
{
return false;
}
}

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assFileUpload::isComplete ( )

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

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

Reimplemented from assQuestion.

Definition at line 66 of file class.assFileUpload.php.

References getMaximumPoints().

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

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assFileUpload::loadFromDb (   $question_id)

Loads a assFileUpload object from a database.

Parameters
object$dbA pear DB object
integer$question_idA unique key which defines the question in the database

Reimplemented from assQuestion.

Definition at line 111 of file class.assFileUpload.php.

References $data, $ilDB, $result, ilRTE\_replaceMediaObjectImageSrc(), getAdditionalTableName(), setAllowedExtensions(), assQuestion\setAuthor(), assQuestion\setComment(), assQuestion\setEstimatedWorkingTime(), assQuestion\setId(), setMaxSize(), assQuestion\setNrOfTries(), assQuestion\setObjId(), assQuestion\setOriginalId(), assQuestion\setOwner(), assQuestion\setPoints(), assQuestion\setQuestion(), assQuestion\setSuggestedSolution(), and assQuestion\setTitle().

{
global $ilDB;
$result = $ilDB->queryF("SELECT qpl_questions.*, " . $this->getAdditionalTableName() . ".* FROM qpl_questions LEFT JOIN " . $this->getAdditionalTableName() . " ON " . $this->getAdditionalTableName() . ".question_fi = qpl_questions.question_id WHERE qpl_questions.question_id = %s",
array("integer"),
array($question_id)
);
if ($result->numRows() == 1)
{
$data = $ilDB->fetchAssoc($result);
$this->setId($question_id);
$this->setTitle($data["title"]);
$this->setComment($data["description"]);
$this->setNrOfTries($data['nr_of_tries']);
$this->setSuggestedSolution($data["solution_hint"]);
$this->setOriginalId($data["original_id"]);
$this->setObjId($data["obj_fi"]);
$this->setAuthor($data["author"]);
$this->setOwner($data["owner"]);
$this->setPoints($data["points"]);
include_once("./Services/RTE/classes/class.ilRTE.php");
$this->setQuestion(ilRTE::_replaceMediaObjectImageSrc($data["question_text"], 1));
$this->setEstimatedWorkingTime(substr($data["working_time"], 0, 2), substr($data["working_time"], 3, 2), substr($data["working_time"], 6, 2));
$this->setMaxSize($data["maxsize"]);
$this->setAllowedExtensions($data["allowedextensions"]);
}
parent::loadFromDb($question_id);
}

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assFileUpload::saveToDb (   $original_id = "")

Saves a assFileUpload object to a database.

Reimplemented from assQuestion.

Definition at line 82 of file class.assFileUpload.php.

References $ilDB, assQuestion\$original_id, getAdditionalTableName(), getAllowedExtensions(), assQuestion\getId(), getMaxSize(), and assQuestion\saveQuestionDataToDb().

{
global $ilDB;
$this->saveQuestionDataToDb($original_id);
// save additional data
$affectedRows = $ilDB->manipulateF("DELETE FROM " . $this->getAdditionalTableName() . " WHERE question_fi = %s",
array("integer"),
array($this->getId())
);
$affectedRows = $ilDB->manipulateF("INSERT INTO " . $this->getAdditionalTableName() . " (question_fi, maxsize, allowedextensions) VALUES (%s, %s, %s)",
array("integer", "float", "text"),
array(
$this->getId(),
(strlen($this->getMaxSize())) ? $this->getMaxSize() : NULL,
(strlen($this->getAllowedExtensions())) ? $this->getAllowedExtensions() : NULL
)
);
parent::saveToDb();
}

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

Saves the learners input of the question to the database. 

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

Reimplemented from assQuestion.

Definition at line 523 of file class.assFileUpload.php.

References $_POST, $ilDB, $pass, $result, $row, assQuestion\$test_id, ilObjAssessmentFolder\_enabledAssessmentLogging(), ilObjAssessmentFolder\_getLogLanguage(), ilObjTest\_getPass(), checkUpload(), deleteUploadedFiles(), getFileUploadPath(), assQuestion\getId(), assQuestion\logAction(), ilUtil\makeDirParents(), ilUtil\moveUploadedFile(), and ilUtil\sendInfo().

{
global $ilDB;
global $ilUser;
if (is_null($pass))
{
include_once "./Modules/Test/classes/class.ilObjTest.php";
$pass = ilObjTest::_getPass($active_id);
}
$result = $ilDB->queryF("SELECT test_fi FROM tst_active WHERE active_id = %s",
array('integer'),
array($active_id)
);
$test_id = 0;
if ($result->numRows() == 1)
{
$row = $ilDB->fetchAssoc($result);
$test_id = $row["test_fi"];
}
$entered_values = false;
if (strcmp($_POST['cmd']['gotoquestion'], $this->lng->txt('delete')) == 0)
{
$deletefiles = $_POST['file'];
if (is_array($deletefiles) && count($deletefiles) > 0)
{
$this->deleteUploadedFiles($deletefiles, $test_id, $active_id);
}
else
{
ilUtil::sendInfo($this->lng->txt('no_checkbox'), true);
}
}
else
{
if (strlen($_FILES["upload"]["tmp_name"]))
{
if ($this->checkUpload())
{
if (!@file_exists($this->getFileUploadPath($test_id, $active_id))) ilUtil::makeDirParents($this->getFileUploadPath($test_id, $active_id));
$version = time();
$filename_arr = pathinfo($_FILES["upload"]["name"]);
$extension = $filename_arr["extension"];
$newfile = "file_" . $active_id . "_" . $pass . "_" . $version . "." . $extension;
ilUtil::moveUploadedFile($_FILES["upload"]["tmp_name"], $_FILES["upload"]["name"], $this->getFileUploadPath($test_id, $active_id) . $newfile);
$next_id = $ilDB->nextId('tst_solutions');
$affectedRows = $ilDB->insert("tst_solutions", array(
"solution_id" => array("integer", $next_id),
"active_fi" => array("integer", $active_id),
"question_fi" => array("integer", $this->getId()),
"value1" => array("clob", $newfile),
"value2" => array("clob", $_FILES['upload']['name']),
"pass" => array("integer", $pass),
"tstamp" => array("integer", time())
));
$entered_values = true;
}
}
}
if ($entered_values)
{
include_once ("./Modules/Test/classes/class.ilObjAssessmentFolder.php");
if (ilObjAssessmentFolder::_enabledAssessmentLogging())
{
$this->logAction($this->lng->txtlng("assessment", "log_user_entered_values", ilObjAssessmentFolder::_getLogLanguage()), $active_id, $this->getId());
}
}
else
{
include_once ("./Modules/Test/classes/class.ilObjAssessmentFolder.php");
if (ilObjAssessmentFolder::_enabledAssessmentLogging())
{
$this->logAction($this->lng->txtlng("assessment", "log_user_not_entered_values", ilObjAssessmentFolder::_getLogLanguage()), $active_id, $this->getId());
}
}
parent::saveWorkingData($active_id, $pass);
return true;
}

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assFileUpload::setAllowedExtensions (   $a_value)

Set allowed file extensions.

Parameters
string$a_valueAllowed file extensions

Definition at line 776 of file class.assFileUpload.php.

Referenced by __set(), and loadFromDb().

{
$this->allowedextensions = strtolower(trim($a_value));
}

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

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

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

Reimplemented from assQuestion.

Definition at line 664 of file class.assFileUpload.php.

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

{
include_once ("./Services/Excel/classes/class.ilExcelUtils.php");
$worksheet->writeString($startrow, 0, ilExcelUtils::_convert_text($this->lng->txt($this->getQuestionType())), $format_title);
$worksheet->writeString($startrow, 1, ilExcelUtils::_convert_text($this->getTitle()), $format_title);
$i = 1;
$solutions = $this->getSolutionValues($active_id, $pass);
foreach ($solutions as $solution)
{
$worksheet->writeString($startrow + $i, 0, ilExcelUtils::_convert_text($this->lng->txt("result")), $format_bold);
if (strlen($solution["value1"]))
{
$worksheet->write($startrow + $i, 1, ilExcelUtils::_convert_text($solution["value1"]));
$worksheet->write($startrow + $i, 2, ilExcelUtils::_convert_text($solution["value2"]));
}
$i++;
}
return $startrow + $i + 1;
}

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assFileUpload::setMaxSize (   $a_value)

Set max file size.

Parameters
double$a_valueMax file size

Definition at line 742 of file class.assFileUpload.php.

Referenced by __set(), and loadFromDb().

{
$this->maxsize = $a_value;
}

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assFileUpload::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 and sets the internal domxml variable with the DOM XML representation of the QTI xml representation.

Returns
string The QTI xml representation of the question

Reimplemented from assQuestion.

Definition at line 709 of file class.assFileUpload.php.

{
include_once "./Modules/TestQuestionPool/classes/export/qti12/class.assFileUploadExport.php";
$export = new assFileUploadExport($this);
return $export->toXML($a_include_header, $a_include_binary, $a_shuffle, $test_output, $force_image_references);
}

Field Documentation

assFileUpload::$allowedextensions
protected

Definition at line 36 of file class.assFileUpload.php.

Referenced by getAllowedExtensions().

assFileUpload::$maxsize
protected

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

Referenced by getMaxSize().

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