Basic class for all assessment question types. More...

Inheritance diagram for assQuestion:

Public Member Functions
	assQuestion ($title="", $comment="", $author="", $owner=-1)
	assQuestion constructor
	_assQuestion ()
	to_xml ()
	Returns a QTI xml representation of the question.
	isComplete ()
	Returns true, if a question is complete for use.
	questionTitleExists ($questionpool_id, $title)
	Returns TRUE if the question title exists in the database.
	setTitle ($title="")
	Sets the title string.
	setId ($id=-1)
	Sets the id.
	setTestId ($id=-1)
	Sets the test id.
	setComment ($comment="")
	Sets the comment.
	setOutputType ($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.
	setOwner ($owner="")
	Sets the creator/owner.
	getTitle ()
	Gets the title string.
	getId ()
	Gets the id.
	getShuffle ()
	Gets the shuffle flag.
	getTestId ()
	Gets the test id.
	getComment ()
	Gets the comment.
	getOutputType ()
	Gets the output type.
	getEstimatedWorkingTime ()
	Gets the estimated working time of a question.
	getAuthor ()
	Gets the authors name.
	getOwner ()
	Gets the creator/owner.
	getObjId ()
	Get the object id of the container object.
	setObjId ($obj_id=0)
	Set the object id of the container object.
	createPageObject ()
	create page object of question
	insertIntoTest ($test_id)
	Insert the question into a test.
	_getMaximumPoints ($question_id)
	Returns the maximum points, a learner can reach answering the question.
&	_getQuestionInfo ($question_id)
	Returns question information from the database.
	_getSuggestedSolutionCount ($question_id)
	Returns the number of suggested solutions associated with a question.
&	_getSuggestedSolution ($question_id, $subquestion_index=0)
	Returns a suggested solution for a given subquestion index.
	_getReachedPoints ($active_id, $question_id, $pass=NULL)
	Returns the points, a learner has reached answering the question.
	getReachedPoints ($active_id, $pass=NULL)
	Returns the points, a learner has reached answering the question.
	getMaximumPoints ()
	Returns the maximum points, a learner can reach answering the question.
	saveWorkingData ($active_id, $pass=NULL)
	Saves the learners input of the question to the database.
	logAction ($logtext="", $active_id="", $question_id="")
	Logs an action into the Test&Assessment log.
	getJavaPath ()
	Returns the image path for web accessable images of a question.
	getImagePath ()
	Returns the image path for web accessable images of a question.
	getJavaPathWeb ()
	Returns the web image path for web accessable java applets of a question.
	getImagePathWeb ()
	Returns the web image path for web accessable images of a question.
&	getSolutionValues ($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 ($question_id)
	get question type for question id
	getAdditionalTableName ()
	Returns the name of the additional question data table in the database.
	getAnswerTableName ()
	Returns the name of the answer table in the database.
	deleteAnswers ($question_id)
	Deletes datasets from answers tables.
	deleteAdditionalTableData ($question_id)
	Deletes datasets from the additional question table in the database.
	delete ($question_id)
	Deletes a question 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.
	copyXHTMLMediaObjectsOfQuestion ($a_q_id)
	copyPageOfQuestion ($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.
	loadFromDb ($question_id)
	Loads the question from the database.
	saveToDb ($original_id="")
	Saves the question to the database.
	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, $is_import=false)
	Sets a suggested solution for the question.
	_resolveInternalLink ($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.
	getSolutionCommentMCScoring ($active_id)
	getSolutionCommentScoreCutting ($active_id)
	getSolutionCommentCountSystem ($active_id)
	getSolutionMaxPass ($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, $points=0)
	Returns the points, a learner has reached answering the question.
	_isWorkedThrough ($active_id, $question_id, $pass=NULL)
	Returns true if the question was worked through in the given pass.
	getMultilineAnswerSetting ()
	setMultilineAnswerSetting ($a_setting=0)
	_areAnswered ($a_user_id, $a_question_ids)
	Checks if an array of question ids is answered by an user or not.
	isHTML ($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)
&	getInstances ()
	Gets all instances of the question.
	getActiveUserData ($active_id)
	Returns the user id and the test id for a given active id.
Data Fields
	$id
	$title
	$comment
	$owner
	$author
	$points
	$est_working_time
	$shuffle
	$test_id
	$obj_id
	$ilias
	$tpl
	$lng
	$domxml
	$outputType
	$suggested_solutions

Detailed Description

Basic class for all assessment question types.

The assQuestion class defines and encapsulates basic methods and attributes for assessment question types to be used for all parent classes.

Author:: Helmut Schottmüller <helmut.schottmueller@mac.com>

Version:

Id:: class.assQuestion.php 13735 2007-04-27 13:32:09Z hschottm

class.assQuestion.php Assessment

Definition at line 37 of file class.assQuestion.php.

Member Function Documentation

assQuestion::_areAnswered	(	$	a_user_id,
		$	a_question_ids
	)

Checks if an array of question ids is answered by an user or not.

Parameters:

	int	user_id
	array	$question_ids user id array

Returns:: boolean public static

Definition at line 2108 of file class.assQuestion.php.

References $query, and $res.

Referenced by ilCourseObjectiveResult::getStatus().

        {
                global $ilDB;

                $query = "SELECT DISTINCT(question_fi) FROM tst_test_result JOIN tst_active ".
                        "ON (active_id = active_fi) ".
                        "WHERE question_fi IN ('".implode("','",$a_question_ids)."') ".
                        "AND user_fi = '".$a_user_id."'";
                $res = $ilDB->query($query);
                return ($res->numRows() == count($a_question_ids)) ? true : false;
        }

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assQuestion::_assQuestion ( )

Definition at line 226 of file class.assQuestion.php.

        {
                if (!empty($this->domxml))
                {
                        $this->domxml->free();
                }
        }

assQuestion::_getInternalLinkHref ( $ target = "" )

Definition at line 1694 of file class.assQuestion.php.

References $target_id, and $type.

Referenced by assTextSubsetGUI::editQuestion(), assTextQuestionGUI::editQuestion(), assSingleChoiceGUI::editQuestion(), assOrderingQuestionGUI::editQuestion(), assNumericGUI::editQuestion(), assMultipleChoiceGUI::editQuestion(), assMatchingQuestionGUI::editQuestion(), assJavaAppletGUI::editQuestion(), assImagemapQuestionGUI::editQuestion(), assClozeTestGUI::editQuestion(), and ilObjTest::getTestResult().

        {
                global $ilDB;
                $linktypes = array(
                        "lm" => "LearningModule",
                        "pg" => "PageObject",
                        "st" => "StructureObject",
                        "git" => "GlossaryItem",
                        "mob" => "MediaObject"
                );
                $href = "";
                if (preg_match("/il__(\w+)_(\d+)/", $target, $matches))
                {
                        $type = $matches[1];
                        $target_id = $matches[2];
                        include_once "./classes/class.ilUtil.php";
                        switch($linktypes[$matches[1]])
                        {
                                case "LearningModule":
                                        $href = "./goto.php?target=" . $type . "_" . $target_id;
                                        break;
                                case "PageObject":
                                case "StructureObject":
                                        $href = "./goto.php?target=" . $type . "_" . $target_id;
                                        break;
                                case "GlossaryItem":
                                        $href = "./goto.php?target=" . $type . "_" . $target_id;
                                        break;
                                case "MediaObject":
                                        $href = "./content/lm_presentation.php?obj_type=" . $linktypes[$type] . "&cmd=media&ref_id=".$_GET["ref_id"]."&mob_id=".$target_id;
                                        break;
                        }
                }
                return $href;
        }

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assQuestion::_getMaximumPoints ( $ question_id )

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

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

Parameters:

integer

$question_id The database Id of the question public

See also:: $points

Definition at line 672 of file class.assQuestion.php.

References $points, $query, $result, and $row.

Referenced by _getTotalRightAnswers(), ilObjTest::getTestResult(), and ilObjQuestionPoolGUI::questionsObject().

        {
                global $ilDB;

                $points = 0;
                $query = sprintf("SELECT points FROM qpl_questions WHERE question_id = %s",
                        $ilDB->quote($question_id . "")
                );
                $result = $ilDB->query($query);
                if ($result->numRows() == 1)
                {
                        $row = $result->fetchRow(DB_FETCHMODE_ASSOC);
                        $points = $row["points"];
                }
                return $points;
  }

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assQuestion::_getOriginalId ( $ question_id )

Returns the original id of a question.

Returns the original id of a question

Parameters:

integer

$question_id The database id of the question

Returns:: integer The database id of the original question public

Definition at line 1739 of file class.assQuestion.php.

References $query, $result, and $row.

Referenced by ilObjTest::_clone(), assTextSubset::copyObject(), assTextQuestion::copyObject(), assSingleChoice::copyObject(), assQuestionTypeTemplate::copyObject(), assOrderingQuestion::copyObject(), assNumeric::copyObject(), assMultipleChoice::copyObject(), assMatchingQuestion::copyObject(), assJavaApplet::copyObject(), assImagemapQuestion::copyObject(), assClozeTest::copyObject(), assTextSubset::duplicate(), assTextQuestion::duplicate(), assSingleChoice::duplicate(), assQuestionTypeTemplate::duplicate(), assOrderingQuestion::duplicate(), assNumeric::duplicate(), assMultipleChoice::duplicate(), assMatchingQuestion::duplicate(), assJavaApplet::duplicate(), assImagemapQuestion::duplicate(), assClozeTest::duplicate(), ilObjTest::logAction(), and logAction().

        {
                global $ilDB;
                $query = sprintf("SELECT * FROM qpl_questions WHERE question_id = %s",
                        $ilDB->quote($question_id . "")
                );
                $result = $ilDB->query($query);
                if ($result->numRows() > 0)
                {
                        $row = $result->fetchRow(DB_FETCHMODE_ASSOC);
                        if ($row["original_id"] > 0)
                        {
                                return $row["original_id"];
                        }
                        else
                        {
                                return $row["question_id"];
                        }
                }
                else
                {
                        return "";
                }
        }

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& assQuestion::_getQuestionInfo ( $ question_id )

Returns question information from the database.

Returns question information from the database

Parameters:

integer

$question_id The database Id of the question

Returns:: array The database row containing the question data public static

Definition at line 698 of file class.assQuestion.php.

References $query, and $result.

Referenced by ilObjTest::getTestResult().

        {
                global $ilDB;

                $query = sprintf("SELECT qpl_questions.*, qpl_question_type.type_tag FROM qpl_question_type, qpl_questions WHERE qpl_questions.question_id = %s AND qpl_questions.question_type_fi = qpl_question_type.question_type_id",
                        $ilDB->quote($question_id . "")
                );
                $result = $ilDB->query($query);
                if ($result->numRows())
                {
                        return $result->fetchRow(DB_FETCHMODE_ASSOC);
                }
                else return array();
        }

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assQuestion::_getQuestionTitle ( $ question_id )

Returns the question title of a question with a given id.

Returns the question title of a question with a given id

Parameters:

integer

$question_id The database id of the question

Returns:: string The question title private

Definition at line 1428 of file class.assQuestion.php.

References $data, $query, and $result.

Referenced by ilObjAssessmentFolderGUI::logsObject().

                                           {
                global $ilDB;

    if ($question_id < 1)
      return "";

    $query = sprintf("SELECT title FROM qpl_questions WHERE qpl_questions.question_id = %s",
      $ilDB->quote($question_id)
    );
    $result = $ilDB->query($query);
    if ($result->numRows() == 1) {
      $data = $result->fetchRow(DB_FETCHMODE_ASSOC);
      return $data["title"];
    } else {
      return "";
    }
  }

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assQuestion::_getQuestionType ( $ question_id )

Returns the question type of a question with a given id.

Returns the question type of a question with a given id

Parameters:

integer

$question_id The database id of the question

Returns:: string The question type string private

Definition at line 1401 of file class.assQuestion.php.

References $data, $query, and $result.

Referenced by ilObjTest::_instanciateQuestion(), _instanciateQuestion(), and ilObjQuestionPoolGUI::printObject().

                                          {
                global $ilDB;

    if ($question_id < 1)
      return "";

    $query = sprintf("SELECT type_tag FROM qpl_questions, qpl_question_type WHERE qpl_questions.question_id = %s AND qpl_questions.question_type_fi = qpl_question_type.question_type_id",
      $ilDB->quote($question_id)
    );
    $result = $ilDB->query($query);
    if ($result->numRows() == 1) {
      $data = $result->fetchRow(DB_FETCHMODE_OBJECT);
      return $data->type_tag;
    } else {
      return "";
    }
  }

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assQuestion::_getReachedPoints	(	$	active_id,
		$	question_id,
		$	pass = `NULL`
	)

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

Returns the points, a learner has reached answering the question

Parameters:

	integer	$user_id The database ID of the learner
	integer	$test_id The database Id of the test containing the question
	integer	$question_id The database Id of the question public static

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

References $points, $query, $result, $row, and _getSolutionMaxPass().

Referenced by ilObjTestAccess::_getTestResult(), and ilObjTest::getTestResult().

        {
                global $ilDB;

                $points = 0;
                if (is_null($pass))
                {
                        include_once "./assessment/classes/class.assQuestion.php";
                        $pass = assQuestion::_getSolutionMaxPass($question_id, $active_id);
                }
                $query = sprintf("SELECT * FROM tst_test_result WHERE active_fi = %s AND question_fi = %s AND pass = %s",
                        $ilDB->quote($active_id . ""),
                        $ilDB->quote($question_id . ""),
                        $ilDB->quote($pass . "")
                );
                $result = $ilDB->query($query);
                if ($result->numRows() == 1)
                {
                        $row = $result->fetchRow(DB_FETCHMODE_ASSOC);
                        $points = $row["points"];
                }
                return $points;
        }

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assQuestion::_getSolutionMaxPass	(	$	question_id,
		$	active_id
	)

Returns the maximum pass a users question solution.

Returns the maximum pass a users question solution

Parameters:

return

integer The maximum pass of the users solution public

Definition at line 1936 of file class.assQuestion.php.

References $query, $result, and $row.

Referenced by _getReachedPoints(), _isWorkedThrough(), assTextQuestion::_setReachedPoints(), getSolutionMaxPass(), and ilObjTest::getTextAnswer().

        {
                global $ilDB;

                $query = sprintf("SELECT MAX(pass) as maxpass FROM tst_test_result WHERE active_fi = %s AND question_fi = %s",
                        $ilDB->quote($active_id . ""),
                        $ilDB->quote($question_id . "")
                );
    $result = $ilDB->query($query);
                if ($result->numRows() == 1)
                {
                        $row = $result->fetchRow(DB_FETCHMODE_ASSOC);
                        return $row["maxpass"];
                }
                else
                {
                        return 0;
                }
        }

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& assQuestion::_getSuggestedSolution	(	$	question_id,
		$	subquestion_index = `0`
	)

Returns a suggested solution for a given subquestion index.

Returns a suggested solution for a given subquestion index

Parameters:

	integer	$question_id The database Id of the question
	integer	$subquestion_index The index of a subquestion (i.e. a close test gap). Usually 0

Returns:: array A suggested solution array containing the internal link public

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

References $query, $result, and $row.

Referenced by ilObjTest::getTestResult().

        {
                global $ilDB;

                $query = sprintf("SELECT * FROM qpl_suggested_solutions WHERE question_fi = %s AND subquestion_index = %s",
                        $ilDB->quote($question_id . ""),
                        $ilDB->quote($subquestion_index . "")
                );
                $result = $ilDB->query($query);
                if ($result->numRows() == 1)
                {
                        $row = $result->fetchRow(DB_FETCHMODE_ASSOC);
                        return array(
                                "internal_link" => $row["internal_link"],
                                "import_id" => $row["import_id"]
                        );
                }
                else
                {
                        return array();
                }
        }

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assQuestion::_getSuggestedSolutionCount ( $ question_id )

Returns the number of suggested solutions associated with a question.

Returns the number of suggested solutions associated with a question

Parameters:

integer

$question_id The database Id of the question

Returns:: integer The number of suggested solutions public static

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

References $query, and $result.

Referenced by ilObjTest::getTestResult().

        {
                global $ilDB;

                $query = sprintf("SELECT suggested_solution_id FROM qpl_suggested_solutions WHERE question_fi = %s",
                        $ilDB->quote($question_id . "")
                );
                $result = $ilDB->query($query);
                return $result->numRows();
        }

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assQuestion::_getTitle ( $ a_q_id )

Returns the title of a question.

Parameters:

int

$a_q_id question id

Definition at line 1342 of file class.assQuestion.php.

References $query, $result, and $row.

Referenced by ilObjQuestionPoolGUI::assessmentObject().

        {
                global $ilDB;
                $query = sprintf("SELECT title FROM qpl_questions WHERE question_id = %s",
                        $ilDB->quote($a_q_id)
                );
                $result = $ilDB->query($query);
                if ($result->numRows() == 1)
                {
                        $row = $result->fetchRow(DB_FETCHMODE_ASSOC);
                        return $row["title"];
                }
                else
                {
                        return "";
                }
        }

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assQuestion::_getTotalAnswers ( $ a_q_id )

get number of answers for question id (static) note: do not use $this inside this method

Parameters:

int

$a_q_id question id

Definition at line 1256 of file class.assQuestion.php.

References $query, $result, and $row.

Referenced by ilObjQuestionPoolGUI::assessmentObject(), and getTotalAnswers().

        {
                global $ilDB;

                // get all question references to the question id
                $query = sprintf("SELECT question_id FROM qpl_questions WHERE original_id = %s OR question_id = %s",
                        $ilDB->quote($a_q_id),
                        $ilDB->quote($a_q_id)
                );

                $result = $ilDB->query($query);

                if ($result->numRows() == 0)
                {
                        return 0;
                }
                $found_id = array();
                while ($row = $result->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        array_push($found_id, $row->question_id);
                }

                $query = sprintf("SELECT * FROM tst_test_result WHERE question_fi IN (%s)",
                        join($found_id, ","));
                $result = $ilDB->query($query);

                return $result->numRows();
        }

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assQuestion::_getTotalRightAnswers ( $ a_q_id )

get number of answers for question id (static) note: do not use $this inside this method

Parameters:

int

$a_q_id question id

Definition at line 1292 of file class.assQuestion.php.

References $key, $query, $result, $row, and _getMaximumPoints().

Referenced by ilObjQuestionPoolGUI::assessmentObject().

        {
                global $ilDB;
                $query = sprintf("SELECT question_id FROM qpl_questions WHERE original_id = %s OR question_id = %s",
                        $ilDB->quote($a_q_id),
                        $ilDB->quote($a_q_id)
                );
                $result = $ilDB->query($query);
                if ($result->numRows() == 0)
                {
                        return 0;
                }
                $found_id = array();
                while ($row = $result->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        array_push($found_id, $row->question_id);
                }
                $query = sprintf("SELECT * FROM tst_test_result WHERE question_fi IN (%s)",
                        join($found_id, ","));
                $result = $ilDB->query($query);
                $answers = array();
                while ($row = $result->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        $reached = $row->points; 
                        include_once "./assessment/classes/class.assQuestion.php";
                        $max = assQuestion::_getMaximumPoints($row->question_fi);
                        array_push($answers, array("reached" => $reached, "max" => $max));
                }
                $max = 0.0;
                $reached = 0.0;
                foreach ($answers as $key => $value)
                {
                        $max += $value["max"];
                        $reached += $value["reached"];
                }
                if ($max > 0)
                {
                        return $reached / $max;
                }
                else
                {
                        return 0;
                }
        }

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& assQuestion::_instanciateQuestion ( $ question_id )

Creates an instance of a question with a given question id.

Creates an instance of a question with a given question id

Parameters:

integer

$question_id The question id

Returns:: object The question instance public

Definition at line 1835 of file class.assQuestion.php.

References _getQuestionType().

        {
                if (strcmp($question_id, "") != 0)
                {
                        include_once "./assessment/classes/class.assQuestion.php";
                        $question_type = assQuestion::_getQuestionType($question_id);
                        include_once "./assessment/classes/class.".$question_type.".php";
                        $question = new $question_type();
                        $question->loadFromDb($question_id);
                        return $question;
                }
  }

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assQuestion::_isUsedInRandomTest ( $ question_id = "" )

Checks whether the question is used in a random test or not.

Checks whether the question is used in a random test or not

Returns:: boolean The number how often the question is used in a random test public

Definition at line 2000 of file class.assQuestion.php.

References $query, and $result.

Referenced by ilObjQuestionPool::getDeleteableQuestionDetails(), and ilObjQuestionPool::getUsedQuestionDetails().

        {
                global $ilDB;
                
                if ($question_id < 1) return 0;
                $query = sprintf("SELECT test_random_question_id FROM tst_test_random_question WHERE question_fi = %s",
                        $ilDB->quote($question_id . "")
                );
                $result = $ilDB->query($query);
                return $result->numRows();
        }

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assQuestion::_isWorkedThrough	(	$	active_id,
		$	question_id,
		$	pass = `NULL`
	)

Returns true if the question was worked through in the given pass.

Returns true if the question was worked through in the given pass Worked through means that the user entered at least one value

Parameters:

	integer	$user_id The database ID of the learner
	integer	$test_id The database Id of the test containing the question
	integer	$question_id The database Id of the question public static

Definition at line 2056 of file class.assQuestion.php.

References $points, $query, $result, and _getSolutionMaxPass().

Referenced by ilObjTest::getAnsweredQuestionCount(), and ilObjTest::getTestResult().

        {
                global $ilDB;

                $points = 0;
                if (is_null($pass))
                {
                        include_once "./assessment/classes/class.assQuestion.php";
                        $pass = assQuestion::_getSolutionMaxPass($question_id, $active_id);
                }
                $query = sprintf("SELECT solution_id FROM tst_solutions WHERE active_fi = %s AND question_fi = %s AND pass = %s",
                        $ilDB->quote($active_id . ""),
                        $ilDB->quote($question_id . ""),
                        $ilDB->quote($pass . "")
                );
                $result = $ilDB->query($query);
                if ($result->numRows())
                {
                        return TRUE;
                }
                else
                {
                        return FALSE;
                }
        }

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assQuestion::_isWriteable	(	$	question_id,
		$	user_id
	)

Returns true if the question is writeable by a certain user.

Returns true if the question is writeable by a certain user

Parameters:

	integer	$question_id The database id of the question
	integer	$user_id The database id of the user

Returns:: boolean True, if the question exists, otherwise False public

Definition at line 1966 of file class.assQuestion.php.

References $query, $result, $row, and $user_id.

Referenced by assQuestionGUI::save(), and assQuestionGUI::saveEdit().

        {
                global $ilDB;

                if (($question_id < 1) || ($user_id < 1))
                {
                        return false;
                }
                
                $query = sprintf("SELECT obj_fi FROM qpl_questions WHERE question_id = %s",
                        $ilDB->quote($question_id . "")
                );
    $result = $ilDB->query($query);
                if ($result->numRows() == 1)
                {
                        $row = $result->fetchRow(DB_FETCHMODE_ASSOC);
                        $qpl_object_id = $row["obj_fi"];
                        include_once "./assessment/classes/class.ilObjQuestionPool.php";
                        return ilObjQuestionPool::_isWriteable($qpl_object_id, $user_id);
                }
                else
                {
                        return false;
                }
        }

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assQuestion::_questionExists ( $ question_id )

Returns true if the question already exists in the database.

Returns true if the question already exists in the database

Parameters:

integer

$question_id The database id of the question

Returns:: boolean True, if the question exists, otherwise False public

Definition at line 1803 of file class.assQuestion.php.

References $query, and $result.

        {
                global $ilDB;

                if ($question_id < 1)
                {
                        return false;
                }
                
                $query = sprintf("SELECT question_id FROM qpl_questions WHERE question_id = %s",
                        $ilDB->quote($question_id)
                );
    $result = $ilDB->query($query);
                if ($result->numRows() == 1)
                {
                        return true;
                }
                else
                {
                        return false;
                }
        }

assQuestion::_resolveInternalLink ( $ internal_link )

Definition at line 1605 of file class.assQuestion.php.

References ilInternalLink::_getIdForImportId(), and ilLMObject::_getIdForImportId().

Referenced by _resolveIntLinks(), and setSuggestedSolution().

        {
                if (preg_match("/il_(\d+)_(\w+)_(\d+)/", $internal_link, $matches))
                {
                        include_once "./content/classes/Pages/class.ilInternalLink.php";
                        include_once "./content/classes/class.ilLMObject.php";
                        include_once "./content/classes/class.ilGlossaryTerm.php";
                        switch ($matches[2])
                        {
                                case "lm":
                                        $resolved_link = ilLMObject::_getIdForImportId($internal_link);
                                        break;
                                case "pg":
                                        $resolved_link = ilInternalLink::_getIdForImportId("PageObject", $internal_link);
                                        break;
                                case "st":
                                        $resolved_link = ilInternalLink::_getIdForImportId("StructureObject", $internal_link);
                                        break;
                                case "git":
                                        $resolved_link = ilInternalLink::_getIdForImportId("GlossaryItem", $internal_link);
                                        break;
                                case "mob":
                                        $resolved_link = ilInternalLink::_getIdForImportId("MediaObject", $internal_link);
                                        break;
                        }
                        if (strcmp($resolved_link, "") == 0)
                        {
                                $resolved_link = $internal_link;
                        }
                }
                else
                {
                        $resolved_link = $internal_link;
                }
                return $resolved_link;
        }

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assQuestion::_resolveIntLinks ( $ question_id )

Definition at line 1642 of file class.assQuestion.php.

References $query, $result, $row, ilInternalLink::_deleteAllLinksOfSource(), _resolveInternalLink(), and ilInternalLink::_saveLink().

Referenced by ilContObjParser::processPagesToParse().

        {
                global $ilDB;
                $resolvedlinks = 0;
                $query = sprintf("SELECT * FROM qpl_suggested_solutions WHERE question_fi = %s",
                        $ilDB->quote($question_id . "")
                );
                $result = $ilDB->query($query);
                if ($result->numRows())
                {
                        while ($row = $result->fetchRow(DB_FETCHMODE_ASSOC))
                        {
                                $internal_link = $row["internal_link"];
                                include_once "./assessment/classes/class.assQuestion.php";
                                $resolved_link = assQuestion::_resolveInternalLink($internal_link);
                                if (strcmp($internal_link, $resolved_link) != 0)
                                {
                                        // internal link was resolved successfully
                                        $queryupdate = sprintf("UPDATE qpl_suggested_solutions SET internal_link = %s WHERE suggested_solution_id = %s",
                                                $ilDB->quote($resolved_link),
                                                $ilDB->quote($row["suggested_solution_id"] . "")
                                        );
                                        $updateresult = $ilDB->query($queryupdate);
                                        $resolvedlinks++;
                                }
                        }
                }
                if ($resolvedlinks)
                {
                        // there are resolved links -> reenter theses links to the database

                        // delete all internal links from the database
                        include_once "./content/classes/Pages/class.ilInternalLink.php";
                        ilInternalLink::_deleteAllLinksOfSource("qst", $question_id);

                        $query = sprintf("SELECT * FROM qpl_suggested_solutions WHERE question_fi = %s",
                                $ilDB->quote($question_id . "")
                        );
                        $result = $ilDB->query($query);
                        if ($result->numRows())
                        {
                                while ($row = $result->fetchRow(DB_FETCHMODE_ASSOC))
                                {
                                        if (preg_match("/il_(\d*?)_(\w+)_(\d+)/", $row["internal_link"], $matches))
                                        {
                                                ilInternalLink::_saveLink("qst", $question_id, $matches[2], $matches[3], $matches[1]);
                                        }
                                }
                        }
                }
        }

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assQuestion::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.

Parameters:

	object	$a_xml_writer Reference to the ILIAS XML writer
	string	$a_material plain text or html text containing the material

Returns:: string QTI material tag public

Definition at line 2223 of file class.assQuestion.php.

References $mobs, ilObjMediaObject::_getMobsOfObject(), ilRTE::_replaceMediaObjectImageSrc(), getId(), and isHTML().

Referenced by assTextSubset::to_xml(), assTextQuestion::to_xml(), assSingleChoice::to_xml(), assOrderingQuestion::to_xml(), assNumeric::to_xml(), assMultipleChoice::to_xml(), assMatchingQuestion::to_xml(), assJavaApplet::to_xml(), assImagemapQuestion::to_xml(), and assClozeTest::to_xml().

        {
                include_once "./Services/RTE/classes/class.ilRTE.php";
                include_once("./content/classes/Media/class.ilObjMediaObject.php");

                $a_xml_writer->xmlStartTag("material");
                $attrs = array(
                        "texttype" => "text/plain"
                );
                if ($this->isHTML($a_material))
                {
                        $attrs["texttype"] = "text/xhtml";
                }
                $a_xml_writer->xmlElement("mattext", $attrs, ilRTE::_replaceMediaObjectImageSrc($a_material, 0));

                if ($add_mobs)
                {
                        $mobs = ilObjMediaObject::_getMobsOfObject("qpl:html", $this->getId());
                        foreach ($mobs as $mob)
                        {
                                $mob_obj =& new ilObjMediaObject($mob);
                                $imgattrs = array(
                                        "label" => "il_" . IL_INST_ID . "_mob_" . $mob,
                                        "uri" => "objects/" . "il_" . IL_INST_ID . "_mob_" . $mob . "/" . $mob_obj->getTitle()
                                );
                                $a_xml_writer->xmlElement("matimage", $imgattrs, NULL);
                        }
                }               
                if ($close_material_tag) $a_xml_writer->xmlEndTag("material");
        }

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assQuestion::assQuestion	(	$	title = `""`,
		$	comment = `""`,
		$	author = `""`,
		$	owner = `-1`
	)

assQuestion constructor

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

Parameters:

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

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

References $author, $comment, $ilias, $lng, $owner, $title, $tpl, and setEstimatedWorkingTime().

Referenced by assClozeTest::assClozeTest(), assImagemapQuestion::assImagemapQuestion(), assJavaApplet::assJavaApplet(), assMatchingQuestion::assMatchingQuestion(), assMultipleChoice::assMultipleChoice(), assNumeric::assNumeric(), assOrderingQuestion::assOrderingQuestion(), assQuestionTypeTemplate::assQuestionTypeTemplate(), assSingleChoice::assSingleChoice(), assTextQuestion::assTextQuestion(), and assTextSubset::assTextSubset().

        {
                global $ilias;
                global $lng;
                global $tpl;

                $this->ilias =& $ilias;
                $this->lng =& $lng;
                $this->tpl =& $tpl;

                $this->title = $title;
                $this->comment = $comment;
                $this->author = $author;
                if (!$this->author)
                {
                        $this->author = $this->ilias->account->fullname;
                }
                $this->owner = $owner;
                if ($this->owner == -1)
                {
                        $this->owner = $this->ilias->account->id;
                }
                $this->id = -1;
                $this->test_id = -1;
                $this->suggested_solutions = array();
                $this->shuffle = 1;
                $this->setEstimatedWorkingTime(0,1,0);
                $this->outputType = OUTPUT_HTML;
                register_shutdown_function(array(&$this, '_assQuestion'));
        }

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assQuestion::calculateReachedPoints	(	$	active_id,
		$	pass = `NULL`,
		$	points = `0`
	)

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

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_id The database ID of the learner
	integer	$test_id The database Id of the test containing the question public

Definition at line 2023 of file class.assQuestion.php.

References $points, ilObjTest::_getCountSystem(), ilObjTest::_getScoreCutting(), and getMaximumPoints().

Referenced by saveWorkingData().

        {
                include_once "./assessment/classes/class.ilObjTest.php";
                $count_system = ilObjTest::_getCountSystem($active_id);
                if ($count_system == 1)
                {
                        if ($points != $this->getMaximumPoints())
                        {
                                $points = 0;
                        }
                }
                $score_cutting = ilObjTest::_getScoreCutting($active_id);
                if ($score_cutting == 0)
                {
                        if ($points < 0)
                        {
                                $points = 0;
                        }
                }
                return $points;
        }

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assQuestion::copyPageOfQuestion ( $ a_q_id )

Definition at line 1370 of file class.assQuestion.php.

        {
                if ($a_q_id > 0)
                {
                        include_once "./content/classes/Pages/class.ilPageObject.php";
                        $page = new ilPageObject("qpl", $a_q_id);

                        $xml = str_replace("il__qst_".$a_q_id, "il__qst_".$this->id,
                                $page->getXMLContent());
                        $this->page->setXMLContent($xml);
                        $this->page->saveMobUsage($xml);
                        $this->page->updateFromXML();
                }
        }

assQuestion::copyXHTMLMediaObjectsOfQuestion ( $ a_q_id )

Definition at line 1360 of file class.assQuestion.php.

References $mobs, ilObjMediaObject::_getMobsOfObject(), ilObjMediaObject::_saveUsage(), and getId().

        {
                include_once("./content/classes/Media/class.ilObjMediaObject.php");
                $mobs = ilObjMediaObject::_getMobsOfObject("qpl:html", $a_q_id);
                foreach ($mobs as $mob)
                {
                        ilObjMediaObject::_saveUsage($mob, "qpl:html", $this->getId());
                }
        }

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assQuestion::createNewImageFileName ( $ image_filename )

Definition at line 2254 of file class.assQuestion.php.

        {
                $extension = "";
                if (preg_match("/.*\.(png|jpg|gif|jpeg)$/i", $image_filename, $matches))
                {
                        $extension = "." . $matches[1];
                }
                $image_filename = md5($image_filename) . $extension;
                return $image_filename;
        }

assQuestion::createPageObject ( )

create page object of question

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

References getId(), and getObjId().

Referenced by assTextSubset::saveToDb(), assTextQuestion::saveToDb(), assSingleChoice::saveToDb(), assQuestionTypeTemplate::saveToDb(), assOrderingQuestion::saveToDb(), assNumeric::saveToDb(), assMultipleChoice::saveToDb(), assMatchingQuestion::saveToDb(), assJavaApplet::saveToDb(), assImagemapQuestion::saveToDb(), and assClozeTest::saveToDb().

        {
                $qpl_id = $this->getObjId();

                include_once "./content/classes/Pages/class.ilPageObject.php";
                $this->page = new ilPageObject("qpl", 0);
                $this->page->setId($this->getId());
                $this->page->setParentId($qpl_id);
                $this->page->setXMLContent("<PageObject><PageContent>".
                        "<Question QRef=\"il__qst_".$this->getId()."\"/>".
                        "</PageContent></PageObject>");
                $this->page->create();
        }

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assQuestion::createRandomSolution	(	$	test_id,
		$	user_id
	)

Reimplemented in assTextQuestion.

Definition at line 1790 of file class.assQuestion.php.

        {
        }

assQuestion::delete ( $ question_id )

Deletes a question from the database.

Deletes a question and all materials from the database

Parameters:

integer

$question_id The database id of the question private

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

References $mobs, $obj_id, $query, $result, $row, ilObjMediaObject::_getMobsOfObject(), ilObjMediaObject::_removeUsage(), ilObjQuestionPool::_updateQuestionCount(), ilUtil::delDir(), deleteAdditionalTableData(), and deleteAnswers().

        {
                global $ilDB;
                
                if ($question_id < 1)
                return;

                $query = sprintf("SELECT obj_fi FROM qpl_questions WHERE question_id = %s",
                        $ilDB->quote($question_id)
                        );
        $result = $ilDB->query($query);
                if ($result->numRows() == 1)
                {
                        $row = $result->fetchRow(DB_FETCHMODE_ASSOC);
                        $obj_id = $row["obj_fi"];
                }
                else
                {
                        return;
                }

                include_once "./content/classes/Pages/class.ilPageObject.php";
                $page = new ilPageObject("qpl", $question_id);
                $page->delete();
                
                $query = sprintf("DELETE FROM qpl_questions WHERE question_id = %s",
                        $ilDB->quote($question_id)
                );
                $result = $ilDB->query($query);
                
                $this->deleteAdditionalTableData($question_id);
                $this->deleteAnswers($question_id);

                // delete the question in the tst_test_question table (list of test questions)
                $querydelete = sprintf("DELETE FROM tst_test_question WHERE question_fi = %s", $ilDB->quote($question_id));
                $deleteresult = $ilDB->query($querydelete);

                // delete suggested solutions contained in the question
                $querydelete = sprintf("DELETE FROM qpl_suggested_solutions WHERE question_fi = %s", $ilDB->quote($question_id));
                $deleteresult = $ilDB->query($querydelete);
                                
                $directory = CLIENT_WEB_DIR . "/assessment/" . $obj_id . "/$question_id";
                if (preg_match("/\d+/", $obj_id) and preg_match("/\d+/", $question_id) and is_dir($directory))
                {
                        include_once "./classes/class.ilUtil.php";
                        ilUtil::delDir($directory);
                }

                include_once("./content/classes/Media/class.ilObjMediaObject.php");
                $mobs = ilObjMediaObject::_getMobsOfObject("qpl:html", $question_id);
                // remaining usages are not in text anymore -> delete them
                // and media objects (note: delete method of ilObjMediaObject
                // checks whether object is used in another context; if yes,
                // the object is not deleted!)
                foreach($mobs as $mob)
                {
                        ilObjMediaObject::_removeUsage($mob, "qpl:html", $question_id);
                        $mob_obj =& new ilObjMediaObject($mob);
                        $mob_obj->delete();
                }
                // update question count of question pool
                include_once "./assessment/classes/class.ilObjQuestionPool.php";
                ilObjQuestionPool::_updateQuestionCount($this->obj_id);
        }

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assQuestion::deleteAdditionalTableData ( $ question_id )

Deletes datasets from the additional question table in the database.

Deletes datasets from the additional question table in the database

Parameters:

integer

$question_id The question id which should be deleted in the additional question table public

Definition at line 1159 of file class.assQuestion.php.

References $query, $result, and getAdditionalTableName().

Referenced by delete().

        {
                global $ilDB;
                $additional_table_name = $this->getAdditionalTableName();
                $query = sprintf("DELETE FROM $additional_table_name WHERE question_fi = %s",
                        $ilDB->quote($question_id . "")
                );
                $result = $ilDB->query($query);
        }

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assQuestion::deleteAnswers ( $ question_id )

Deletes datasets from answers tables.

Deletes datasets from answers tables

Parameters:

integer

$question_id The question id which should be deleted in the answers table public

Definition at line 1138 of file class.assQuestion.php.

References $query, $result, and getAnswerTableName().

Referenced by delete().

        {
                global $ilDB;
                $answer_table_name = $this->getAnswerTableName();
                if (strlen($answer_table_name))
                {
                        $query = sprintf("DELETE FROM $answer_table_name WHERE question_fi = %s",
                                $ilDB->quote($question_id . "")
                        );
                        $result = $ilDB->query($query);
                }
        }

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assQuestion::deleteSuggestedSolutions ( )

Deletes all suggestes solutions in the database.

Deletes all suggestes solutions in the database

public

Definition at line 1519 of file class.assQuestion.php.

References $query, $result, ilInternalLink::_deleteAllLinksOfSource(), and getId().

        {
                global $ilDB;
                // delete the links in the qpl_suggested_solutions table
                $query = sprintf("DELETE FROM qpl_suggested_solutions WHERE question_fi = %s",
                        $ilDB->quote($this->getId() . "")
                );
                $result = $ilDB->query($query);
                // delete the links in the int_link table
                include_once "./content/classes/Pages/class.ilInternalLink.php";
                ilInternalLink::_deleteAllLinksOfSource("qst", $this->getId());
        }

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assQuestion::getActiveUserData ( $ active_id )

Returns the user id and the test id for a given active id.

Parameters:

integer

$active_id Active id for a test/user

Returns:: array Result array containing the user_id and test_id public

Definition at line 2326 of file class.assQuestion.php.

References $query, $result, and $row.

        {
                global $ilDB;
                $query = sprintf("SELECT * FROM tst_active WHERE active_id = %s",
                        $ilDB->quote($active_id . "")
                );
                $result = $ilDB->query($query);
                if ($result->numRows())
                {
                        $row = $result->fetchRow(DB_FETCHMODE_ASSOC);
                        return array("user_id" => $row["user_fi"], "test_id" => $row["test_fi"]);
                }
                else
                {
                        return array();
                }
        }

assQuestion::getAdditionalTableName ( )

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

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

Returns:: string The additional table name public

Reimplemented in assClozeTest, assImagemapQuestion, assJavaApplet, assMatchingQuestion, assMultipleChoice, assNumeric, assOrderingQuestion, assQuestionTypeTemplate, assSingleChoice, assTextQuestion, and assTextSubset.

Definition at line 1112 of file class.assQuestion.php.

Referenced by deleteAdditionalTableData().

        {
                return "";
        }

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assQuestion::getAnswerTableName ( )

Returns the name of the answer table in the database.

Returns the name of the answer table in the database

Returns:: string The answer table name public

Reimplemented in assClozeTest, assImagemapQuestion, assMatchingQuestion, assMultipleChoice, assOrderingQuestion, assQuestionTypeTemplate, assSingleChoice, and assTextSubset.

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

Referenced by deleteAnswers().

        {
                return "";
        }

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assQuestion::getAuthor ( )

Gets the authors name.

Gets the authors name of the assQuestion object

Returns:: string The string containing the name of the questions author public

See also:: $author

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

Referenced by assQuestionTypeTemplate::isComplete(), assTextSubset::to_xml(), assTextQuestion::to_xml(), assSingleChoice::to_xml(), assOrderingQuestion::to_xml(), assNumeric::to_xml(), assMultipleChoice::to_xml(), assMatchingQuestion::to_xml(), assJavaApplet::to_xml(), assImagemapQuestion::to_xml(), and assClozeTest::to_xml().

        {
                return $this->author;
        }

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assQuestion::getComment ( )

Gets the comment.

Gets the comment string of the assQuestion object

Returns:: string The comment string to describe the question public

See also:: $comment

Definition at line 518 of file class.assQuestion.php.

Referenced by assTextSubset::to_xml(), assTextQuestion::to_xml(), assSingleChoice::to_xml(), assOrderingQuestion::to_xml(), assNumeric::to_xml(), assMultipleChoice::to_xml(), assMatchingQuestion::to_xml(), assJavaApplet::to_xml(), assImagemapQuestion::to_xml(), and assClozeTest::to_xml().

        {
                return $this->comment;
        }

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assQuestion::getEstimatedWorkingTime ( )

Gets the estimated working time of a question.

Gets the estimated working time of a question

Returns:: array Estimated Working Time of a question public

See also:: $est_working_time

Definition at line 546 of file class.assQuestion.php.

        {
                if (!$this->est_working_time)
                {
                        $this->est_working_time = array("h" => 0, "m" => 0, "s" => 0);
                }
                return $this->est_working_time;
        }

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assQuestion::getId ( )

Gets the id.

Gets the id of the assQuestion object

Returns:: integer The id of the assQuestion object public

See also:: $id

Definition at line 476 of file class.assQuestion.php.

        {
                return $this->id;
        }

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assQuestion::getImagePath ( )

Returns the image path for web accessable images of a question.

Returns the image path for web accessable images of a question. The image path is under the CLIENT_WEB_DIR in assessment/REFERENCE_ID_OF_QUESTION_POOL/ID_OF_QUESTION/images

public

Definition at line 926 of file class.assQuestion.php.

Referenced by assImagemapQuestion::copyImage(), assSingleChoice::copyImages(), assOrderingQuestion::copyImages(), assMultipleChoice::copyImages(), assMatchingQuestion::copyImages(), assSingleChoice::deleteImage(), assMultipleChoice::deleteImage(), assImagemapQuestion::duplicateImage(), assSingleChoice::duplicateImages(), assOrderingQuestion::duplicateImages(), assMultipleChoice::duplicateImages(), assMatchingQuestion::duplicateImages(), assSingleChoice::fromXML(), assOrderingQuestion::fromXML(), assMultipleChoice::fromXML(), assMatchingQuestion::fromXML(), assImagemapQuestion::fromXML(), assSingleChoice::loadFromDb(), assMultipleChoice::loadFromDb(), assSingleChoice::setImageFile(), assOrderingQuestion::setImageFile(), assMultipleChoice::setImageFile(), assMatchingQuestion::setImageFile(), assImagemapQuestion::setImageFilename(), assSingleChoice::to_xml(), assOrderingQuestion::to_xml(), assMultipleChoice::to_xml(), assMatchingQuestion::to_xml(), and assImagemapQuestion::to_xml().

        {
                return CLIENT_WEB_DIR . "/assessment/$this->obj_id/$this->id/images/";
        }

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assQuestion::getImagePathWeb ( )

Returns the web image path for web accessable images of a question.

Returns the web image path for web accessable images of a question. The image path is under the web accessable data dir in assessment/REFERENCE_ID_OF_QUESTION_POOL/ID_OF_QUESTION/images

public

Definition at line 954 of file class.assQuestion.php.

References ilUtil::removeTrailingPathSeparators().

Referenced by assSingleChoice::to_xml(), assOrderingQuestion::to_xml(), assMultipleChoice::to_xml(), assMatchingQuestion::to_xml(), and assImagemapQuestion::to_xml().

        {
                include_once "./classes/class.ilUtil.php";
                $webdir = ilUtil::removeTrailingPathSeparators(CLIENT_WEB_DIR) . "/assessment/$this->obj_id/$this->id/images/";
                return str_replace(ilUtil::removeTrailingPathSeparators(ILIAS_ABSOLUTE_PATH), ilUtil::removeTrailingPathSeparators(ILIAS_HTTP_PATH), $webdir);
        }

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& assQuestion::getInstances ( )

Gets all instances of the question.

Returns:: array All instances of question and its copies

Definition at line 2270 of file class.assQuestion.php.

References $key, $query, $result, $row, and ilObjTest::_lookupAuthor().

        {
                global $ilDB;
                $query = sprintf("SELECT question_id FROM qpl_questions WHERE original_id = %s",
                        $ilDB->quote($this->getId())
                );
                $result = $ilDB->query($query);
                $instances = array();
                $ids = array();
                while ($row = $result->fetchRow(DB_FETCHMODE_ASSOC))
                {
                        array_push($ids, $row["question_id"]);
                }
                foreach ($ids as $question_id)
                {
                        $query = sprintf("SELECT DISTINCT object_data.obj_id, object_data.title FROM tst_test_question, object_data, tst_tests WHERE question_fi = %s AND tst_tests.test_id = tst_test_question.test_fi AND object_data.obj_id = tst_tests.obj_fi",
                                $ilDB->quote($question_id . "")
                        );
                        $result = $ilDB->query($query);
                        while ($row = $result->fetchRow(DB_FETCHMODE_ASSOC))
                        {
                                $instances[$row["obj_id"]] = $row["title"];
                        }
                        $query = sprintf("SELECT DISTINCT object_data.obj_id, object_data.title FROM tst_test_random_question, tst_active, object_data, tst_tests WHERE tst_test_random_question.active_fi = tst_active.active_id AND tst_test_random_question.question_fi = %s AND tst_tests.test_id = tst_active.test_fi AND object_data.obj_id = tst_tests.obj_fi",
                                $ilDB->quote($question_id . "")
                        );
                        $result = $ilDB->query($query);
                        while ($row = $result->fetchRow(DB_FETCHMODE_ASSOC))
                        {
                                $instances[$row["obj_id"]] = $row["title"];
                        }
                }
                include_once "./assessment/classes/class.ilObjTest.php";
                foreach ($instances as $key => $value)
                {
                        $query = sprintf("SELECT object_reference.ref_id FROM object_reference WHERE obj_id = %s",
                                $ilDB->quote($key . "")
                        );
                        $result = $ilDB->query($query);
                        $refs = array();
                        while ($row = $result->fetchRow(DB_FETCHMODE_ASSOC))
                        {
                                array_push($refs, $row["ref_id"]);
                        }
                        $instances[$key] = array("obj_id" => $key, "title" => $value, "author" => ilObjTest::_lookupAuthor($key), "refs" => $refs);
                }
                return $instances;
        }

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assQuestion::getJavaPath ( )

Returns the image path for web accessable images of a question.

Returns the image path for web accessable images of a question. The image path is under the CLIENT_WEB_DIR in assessment/REFERENCE_ID_OF_QUESTION_POOL/ID_OF_QUESTION/images

public

Definition at line 914 of file class.assQuestion.php.

Referenced by assJavaApplet::copyApplet(), assJavaApplet::deleteJavaAppletFilename(), assJavaApplet::duplicateApplet(), assJavaApplet::fromXML(), assJavaApplet::setJavaAppletFilename(), and assJavaApplet::to_xml().

                               {
                return CLIENT_WEB_DIR . "/assessment/$this->obj_id/$this->id/java/";
        }

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assQuestion::getJavaPathWeb ( )

Returns the web image path for web accessable java applets of a question.

Returns the web image path for web accessable java applets of a question. The image path is under the web accessable data dir in assessment/REFERENCE_ID_OF_QUESTION_POOL/ID_OF_QUESTION/java

public

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

References ilUtil::removeTrailingPathSeparators().

        {
                include_once "./classes/class.ilUtil.php";
                $webdir = ilUtil::removeTrailingPathSeparators(CLIENT_WEB_DIR) . "/assessment/$this->obj_id/$this->id/java/";
                return str_replace(ilUtil::removeTrailingPathSeparators(ILIAS_ABSOLUTE_PATH), ilUtil::removeTrailingPathSeparators(ILIAS_HTTP_PATH), $webdir);
        }

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assQuestion::getMaximumPoints ( )

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

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

public

See also:: $points

Reimplemented in assClozeTest, assImagemapQuestion, assJavaApplet, assMatchingQuestion, assMultipleChoice, assNumeric, assOrderingQuestion, assQuestionTypeTemplate, assSingleChoice, assTextQuestion, and assTextSubset.

Definition at line 841 of file class.assQuestion.php.

Referenced by calculateReachedPoints().

        {
                return 0;
        }

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assQuestion::getMultilineAnswerSetting ( )

Definition at line 2082 of file class.assQuestion.php.

        {
                global $ilUser;

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

assQuestion::getObjId ( )

Get the object id of the container object.

Get the object id of the container object

Returns:: integer The object id of the container object public

See also:: $obj_id

Definition at line 592 of file class.assQuestion.php.

Referenced by assTextSubset::copyObject(), assTextQuestion::copyObject(), assSingleChoice::copyObject(), assQuestionTypeTemplate::copyObject(), assOrderingQuestion::copyObject(), assNumeric::copyObject(), assMultipleChoice::copyObject(), assMatchingQuestion::copyObject(), assJavaApplet::copyObject(), assImagemapQuestion::copyObject(), assClozeTest::copyObject(), and createPageObject().

        {
                return $this->obj_id;
        }

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assQuestion::getOutputType ( )

Gets the output type.

Gets the output type

Returns:: integer The output type of the question public

See also:: $outputType

Reimplemented in assMultipleChoice, and assSingleChoice.

Definition at line 532 of file class.assQuestion.php.

Referenced by assOrderingQuestion::checkSaveData(), assOrderingQuestion::saveWorkingData(), assOrderingQuestion::to_xml(), and assMatchingQuestion::to_xml().

        {
                return $this->outputType;
        }

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assQuestion::getOwner ( )

Gets the creator/owner.

Gets the creator/owner ID of the assQuestion object

Returns:: integer The numerical ID to identify the owner/creator public

See also:: $owner

Definition at line 578 of file class.assQuestion.php.

        {
                return $this->owner;
        }

assQuestion::getPageOfQuestion ( )

Definition at line 1385 of file class.assQuestion.php.

        {
                include_once "./content/classes/Pages/class.ilPageObject.php";
                $page = new ilPageObject("qpl", $this->id);
                return $page->getXMLContent();
        }

assQuestion::getPoints ( )

Returns the maximum available points for the question.

Returns the maximum available points for the question

Returns:: integer The points public

Definition at line 1856 of file class.assQuestion.php.

Referenced by assTextQuestion::saveToDb(), assTextQuestion::setReachedPoints(), assClozeTest::testGapSolution(), assTextSubset::to_xml(), assTextQuestion::to_xml(), and assJavaApplet::to_xml().

        {
                if (strcmp($this->points, "") == 0)
                {
                        return 0;
                }
                else
                {
                        return $this->points;
                }
        }

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assQuestion::getQuestionTypeFromDb ( $ question_id )

get question type for question id

note: please don't use $this in this class to allow static calls

Definition at line 1091 of file class.assQuestion.php.

References $data, $query, and $result.

Referenced by assQuestionGUI::_getGUIClassNameForId(), assQuestionGUI::_getQuestionGUI(), and ilObjQuestionPoolGUI::getEmbeddedTabs().

        {
                global $ilDB;

                $query = sprintf("SELECT qpl_question_type.type_tag FROM qpl_question_type, qpl_questions WHERE qpl_questions.question_id = %s AND qpl_questions.question_type_fi = qpl_question_type.question_type_id",
                        $ilDB->quote($question_id));

                $result = $ilDB->query($query);
                $data = $result->fetchRow(DB_FETCHMODE_OBJECT);

                return $data->type_tag;
        }

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assQuestion::getReachedPoints	(	$	active_id,
		$	pass = `NULL`
	)

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

Returns the points, a learner has reached answering the question This is the fast way to get the points directly from the database.

Parameters:

	integer	$user_id The database ID of the learner
	integer	$test_id The database Id of the test containing the question public

Definition at line 810 of file class.assQuestion.php.

References $points, $query, $result, $row, getId(), and getSolutionMaxPass().

        {
                global $ilDB;

                $points = 0;
                if (is_null($pass))
                {
                        $pass = $this->getSolutionMaxPass($active_id);
                }
                $query = sprintf("SELECT * FROM tst_test_result WHERE active_fi = %s AND question_fi = %s AND pass = %s",
                        $ilDB->quote($active_id . ""),
                        $ilDB->quote($this->getId() . ""),
                        $ilDB->quote($pass . "")
                );
                $result = $ilDB->query($query);
                if ($result->numRows() == 1)
                {
                        $row = $result->fetchRow(DB_FETCHMODE_ASSOC);
                        $points = $row["points"];
                }
                return $points;
        }

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assQuestion::getShuffle ( )

Gets the shuffle flag.

Gets the shuffle flag

Returns:: boolean The shuffle flag public

See also:: $shuffle

Definition at line 490 of file class.assQuestion.php.

Referenced by assSingleChoice::to_xml(), assOrderingQuestion::to_xml(), assMultipleChoice::to_xml(), assMatchingQuestion::to_xml(), assClozeTest::to_xml(), and assClozeTest::updateAllGapParams().

        {
                return $this->shuffle;
        }

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assQuestion::getSolutionCommentCountSystem ( $ active_id )

Definition at line 1904 of file class.assQuestion.php.

References $result, and ilObjTest::_getCountSystem().

        {
                $result = "";
                include_once "./assessment/classes/class.ilObjTest.php";
                if (ilObjTest::_getCountSystem($active_id) == COUNT_CORRECT_SOLUTIONS )
                {
                        $result = $this->lng->txt("solution_comment_count_system");
                }
                return $result;
        }

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assQuestion::getSolutionCommentMCScoring ( $ active_id )

Definition at line 1882 of file class.assQuestion.php.

References $result, and ilObjTest::_getMCScoring().

        {
                $result = "";
                include_once "./assessment/classes/class.ilObjTest.php";
                if (ilObjTest::_getMCScoring($active_id) == SCORE_ZERO_POINTS_WHEN_UNANSWERED)
                {
                        $result = $this->lng->txt("solution_comment_mc_scoring");
                }
                return $result;
        }

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assQuestion::getSolutionCommentScoreCutting ( $ active_id )

Definition at line 1893 of file class.assQuestion.php.

References $result, and ilObjTest::_getScoreCutting().

        {
                $result = "";
                include_once "./assessment/classes/class.ilObjTest.php";
                if (ilObjTest::_getScoreCutting($active_id) == SCORE_CUT_QUESTION)
                {
                        $result = $this->lng->txt("solution_comment_score_cutting");
                }
                return $result;
        }

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assQuestion::getSolutionMaxPass ( $ active_id )

Returns the maximum pass a users question solution.

Returns the maximum pass a users question solution

Parameters:

return

integer The maximum pass of the users solution public

Definition at line 1923 of file class.assQuestion.php.

References _getSolutionMaxPass(), and getId().

        {
                return $this->_getSolutionMaxPass($this->getId(), $active_id);
        }

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& assQuestion::getSolutionValues	(	$	active_id,
		$	pass = `NULL`
	)

Loads solutions of a given user from the database an returns it.

Loads solutions of a given user from the database an returns it

Parameters:

integer

$test_id The database id of the test containing this question public

See also:: $answers

Definition at line 970 of file class.assQuestion.php.

References $query, $result, $row, and getId().

        {
                global $ilDB;

                $values = array();
                
                if (is_null($pass))
                {
                        $query = sprintf("SELECT MAX(pass) AS maxpass FROM tst_test_result WHERE active_fi = %s AND question_fi = %s",
                                $ilDB->quote($active_id . ""),
                                $ilDB->quote($this->getId() . "")
                        );
                        $result = $ilDB->query($query);
                        if ($result->numRows())
                        {
                                $row = $result->fetchRow(DB_FETCHMODE_ASSOC);
                                $pass = $row["maxpass"];
                        }
                        else
                        {
                                return $values;
                        }
                }               

                $query = sprintf("SELECT * FROM tst_solutions WHERE active_fi = %s AND question_fi = %s AND pass = %s",
                        $ilDB->quote($active_id . ""),
                        $ilDB->quote($this->getId() . ""),
                        $ilDB->quote($pass . "")
                );
                $result = $ilDB->query($query);
                while   ($row = $result->fetchRow(DB_FETCHMODE_ASSOC))
                {
                        array_push($values, $row);
                }

                return $values;
        }

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assQuestion::getSuggestedSolution ( $ subquestion_index = 0 )

Returns a suggested solution for a given subquestion index.

Returns a suggested solution for a given subquestion index

Parameters:

integer

$subquestion_index The index of a subquestion (i.e. a close test gap). Usually 0

Returns:: array A suggested solution array containing the internal link public

Definition at line 1541 of file class.assQuestion.php.

Referenced by assTextSubset::to_xml(), assTextQuestion::to_xml(), assSingleChoice::to_xml(), assOrderingQuestion::to_xml(), assNumeric::to_xml(), assMultipleChoice::to_xml(), assMatchingQuestion::to_xml(), assJavaApplet::to_xml(), assImagemapQuestion::to_xml(), and assClozeTest::to_xml().

        {
                if (array_key_exists($subquestion_index, $this->suggested_solutions))
                {
                        return $this->suggested_solutions[$subquestion_index];
                }
                else
                {
                        return array();
                }
        }

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assQuestion::getSuggestedSolutionTitle ( $ subquestion_index = 0 )

Returns the title of a suggested solution at a given subquestion_index.

Returns the title of a suggested solution at a given subquestion_index. This can be usable for displaying suggested solutions

Parameters:

integer

$subquestion_index The index of a subquestion (i.e. a close test gap). Usually 0

Returns:: string A string containing the type and title of the internal link public

Definition at line 1563 of file class.assQuestion.php.

References $title.

        {
                if (array_key_exists($subquestion_index, $this->suggested_solutions))
                {
                        $title = $this->suggested_solutions[$subquestion_index]["internal_link"];
                        // TO DO: resolve internal link an get link type and title
                }
                else
                {
                        $title = "";
                }
                return $title;
        }

assQuestion::getTestId ( )

Gets the test id.

Gets the test id of the assQuestion object

Returns:: integer The test id of the assQuestion object public

See also:: $test_id

Definition at line 504 of file class.assQuestion.php.

Referenced by assTextSubset::saveToDb(), assTextQuestion::saveToDb(), assSingleChoice::saveToDb(), assQuestionTypeTemplate::saveToDb(), assOrderingQuestion::saveToDb(), assNumeric::saveToDb(), assMultipleChoice::saveToDb(), assMatchingQuestion::saveToDb(), assJavaApplet::saveToDb(), assImagemapQuestion::saveToDb(), and assClozeTest::saveToDb().

        {
                return $this->test_id;
        }

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assQuestion::getTitle ( )

Gets the title string.

Gets the title string of the assQuestion object

Returns:: string The title string to describe the question public

See also:: $title

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

Referenced by assQuestionTypeTemplate::isComplete(), assTextSubset::to_xml(), assTextQuestion::to_xml(), assSingleChoice::to_xml(), assOrderingQuestion::to_xml(), assNumeric::to_xml(), assMultipleChoice::to_xml(), assMatchingQuestion::to_xml(), assJavaApplet::to_xml(), assImagemapQuestion::to_xml(), and assClozeTest::to_xml().

        {
                return $this->title;
        }

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assQuestion::getTotalAnswers ( )

get total number of answers

Definition at line 1245 of file class.assQuestion.php.

References _getTotalAnswers().

        {
                return $this->_getTotalAnswers($this->id);
        }

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assQuestion::insertIntoTest ( $ test_id )

Insert the question into a test.

Insert the question into a test

Parameters:

integer

$test_id The database id of the test private

Definition at line 636 of file class.assQuestion.php.

References $data, $query, $result, $test_id, and getId().

Referenced by assTextSubset::saveToDb(), assTextQuestion::saveToDb(), assSingleChoice::saveToDb(), assQuestionTypeTemplate::saveToDb(), assOrderingQuestion::saveToDb(), assNumeric::saveToDb(), assMultipleChoice::saveToDb(), assMatchingQuestion::saveToDb(), assJavaApplet::saveToDb(), assImagemapQuestion::saveToDb(), and assClozeTest::saveToDb().

        {
                global $ilDB;
                
                // get maximum sequence index in test
                $query = sprintf("SELECT MAX(sequence) AS seq FROM dum_test_question WHERE test_fi=%s",
                        $ilDB->quote($test_id)
                        );
                $result = $ilDB->query($query);
                $sequence = 1;
                if ($result->numRows() == 1)
                {
                        $data = $result->fetchRow(DB_FETCHMODE_OBJECT);
                        $sequence = $data->seq + 1;
                }
                $query = sprintf("INSERT INTO dum_test_question (test_question_id, test_fi, question_fi, sequence, TIMESTAMP) VALUES (NULL, %s, %s, %s, NULL)",
                        $ilDB->quote($test_id),
                        $ilDB->quote($this->getId()),
                        $ilDB->quote($sequence)
                        );
                $result = $ilDB->query($query);
                if ($result != DB_OK)
                {
                // Fehlermeldung
                }
        }

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assQuestion::isClone ( $ question_id = "" )

Checks whether the question is a clone of another question or not.

Checks whether the question is a clone of another question or not

Returns:: boolean TRUE if the question is a clone, otherwise FALSE public

Definition at line 1037 of file class.assQuestion.php.

References $query, $result, and $row.

        {
                global $ilDB;
                
                if ($question_id < 1) $question_id = $this->id;
                $query = sprintf("SELECT original_id FROM qpl_questions WHERE question_id = %s",
                        $ilDB->quote($question_id . "")
                );
                $result = $ilDB->query($query);
                $row = $result->fetchRow(DB_FETCHMODE_OBJECT);
                if ($row->original_id > 0)
                {
                        return TRUE;
                }
                else
                {
                        return FALSE;
                }
        }

assQuestion::isComplete ( )

Returns true, if a question is complete for use.

Returns true, if a question is complete for use

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

Reimplemented in assClozeTest, assImagemapQuestion, assJavaApplet, assMatchingQuestion, assMultipleChoice, assNumeric, assOrderingQuestion, assQuestionTypeTemplate, assSingleChoice, assTextQuestion, and assTextSubset.

Definition at line 256 of file class.assQuestion.php.

        {
                return false;
        }

assQuestion::isHTML ( $ a_text )

Checks if a given string contains HTML or not.

Parameters:

string

$a_text Text which should be checked

Returns:: boolean public

Definition at line 2128 of file class.assQuestion.php.

Referenced by addQTIMaterial(), prepareTextareaOutput(), and assMatchingQuestion::to_xml().

        {
                if (preg_match("/<[^>]*?>/", $a_text))
                {
                        return TRUE;
                }
                else
                {
                        return FALSE; 
                }
        }

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assQuestion::isInUse ( $ question_id = "" )

Checks whether the question is in use or not.

Checks whether the question is in use or not

Returns:: boolean The number of datasets which are affected by the use of the query. public

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

References $query, $result, and $row.

        {
                global $ilDB;
                
                if ($question_id < 1) $question_id = $this->id;
                $query = sprintf("SELECT COUNT(question_id) AS question_count FROM qpl_questions WHERE original_id = %s",
                        $ilDB->quote($question_id . "")
                );
                $result = $ilDB->query($query);
                $row = $result->fetchRow(DB_FETCHMODE_OBJECT);
                return $row->question_count;
        }

assQuestion::keyInArray	(	$	searchkey,
		$	array
	)

returns TRUE if the key occurs in an array

Parameters:

	string	$arraykey A key to an element in array
	array	$array An array to be searched public

Definition at line 406 of file class.assQuestion.php.

References $key.

        {
                if ($searchKey)
                {
                        foreach ($array as $key => $value)
                        {
                                if (strcmp($key, $searchkey)==0)
                                {
                                        return true;
                                }
                        }
                }
                return false;
        }

assQuestion::loadFromDb ( $ question_id )

Loads the question from the database.

Loads the question from the database

Parameters:

integer

$question_id A unique key which defines the question in the database public

Reimplemented in assClozeTest, assImagemapQuestion, assJavaApplet, assMatchingQuestion, assMultipleChoice, assNumeric, assOrderingQuestion, assQuestionTypeTemplate, assSingleChoice, assTextQuestion, and assTextSubset.

Definition at line 1454 of file class.assQuestion.php.

References $query, $result, and $row.

        {
                global $ilDB;
                
                $query = sprintf("SELECT * FROM qpl_suggested_solutions WHERE question_fi = %s",
                        $ilDB->quote($this->getId() . "")
                );
                $result = $ilDB->query($query);
                $this->suggested_solutions = array();
                if ($result->numRows())
                {
                        while ($row = $result->fetchRow(DB_FETCHMODE_ASSOC))
                        {
                                $this->suggested_solutions[$row["subquestion_index"]] = array(
                                        "internal_link" => $row["internal_link"],
                                        "import_id" => $row["import_id"]
                                );
                        }
                }
        }

assQuestion::logAction	(	$	logtext = `""`,
		$	active_id = `""`,
		$	question_id = `""`
	)

Logs an action into the Test&Assessment log.

Logs an action into the Test&Assessment log

Parameters:

	string	$logtext The log text
	integer	$question_id If given, saves the question id to the database public

Definition at line 891 of file class.assQuestion.php.

References ilObjAssessmentFolder::_addLog(), ilObjTest::_getObjectIDFromActiveID(), and _getOriginalId().

Referenced by assTextSubset::saveWorkingData(), assTextQuestion::saveWorkingData(), assSingleChoice::saveWorkingData(), saveWorkingData(), assOrderingQuestion::saveWorkingData(), assNumeric::saveWorkingData(), assMultipleChoice::saveWorkingData(), assMatchingQuestion::saveWorkingData(), assImagemapQuestion::saveWorkingData(), and assClozeTest::saveWorkingData().

        {
                global $ilUser;

                $original_id = "";
                if (strcmp($question_id, "") != 0)
                {
                        include_once "./assessment/classes/class.assQuestion.php";
                        $original_id = assQuestion::_getOriginalId($question_id);
                }
                include_once "./classes/class.ilObjAssessmentFolder.php";
                include_once "./assessment/classes/class.ilObjTest.php";
                ilObjAssessmentFolder::_addLog($ilUser->id, ilObjTest::_getObjectIDFromActiveID($active_id), $logtext, $question_id, $original_id);
        }

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assQuestion::pcArrayShuffle ( $ array )

Shuffles the values of a given array.

Shuffles the values of a given array

Parameters:

array

$array An array which should be shuffled public

Definition at line 1065 of file class.assQuestion.php.

Referenced by assSingleChoice::to_xml(), assOrderingQuestion::to_xml(), assMultipleChoice::to_xml(), assMatchingQuestion::to_xml(), and assClozeTest::to_xml().

        {
                mt_srand((double)microtime()*1000000);
                $i = count($array);
                if ($i > 0)
                {
                        while(--$i)
                        {
                                $j = mt_rand(0, $i);
                                if ($i != $j)
                                {
                                        // swap elements
                                        $tmp = $array[$j];
                                        $array[$j] = $array[$i];
                                        $array[$i] = $tmp;
                                }
                        }
                }
                return $array;
        }

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assQuestion::prepareTextareaOutput	(	$	txt_output,
		$	prepare_for_latex_output = `FALSE`
	)

Prepares a string for a text area output in tests.

Parameters:

string

$txt_output String which should be prepared for output public

Definition at line 2146 of file class.assQuestion.php.

References $result, ilUtil::insertLatexImages(), and isHTML().

        {
                include_once "./classes/class.ilObjAdvancedEditing.php";
                $result = $txt_output;
                $is_html = $this->isHTML($result);
                if ($prepare_for_latex_output)
                {
                        $result = ilUtil::insertLatexImages($result, "<span class\=\"latex\">", "<\/span>", URL_TO_LATEX);
                        $result = ilUtil::insertLatexImages($result, "\[tex\]", "\[\/tex\]", URL_TO_LATEX);
                }
                if (!$is_html)
                {
                        // if the string does not contain HTML code, replace the newlines with HTML line breaks
                        $result = preg_replace("/[\n]/", "<br />", $result);
                }
                else
                {
                        // patch for problems with the <pre> tags in tinyMCE
                        if (preg_match_all("/(<pre>.*?<\/pre>)/ims", $result, $matches))
                        {
                                foreach ($matches[0] as $found)
                                {
                                        $replacement = "";
                                        if (strpos("\n", $found) === FALSE)
                                        {
                                                $replacement = "\n";
                                        }
                                        $removed = preg_replace("/<br\s*?\/>/ims", $replacement, $found);
                                        $result = str_replace($found, $removed, $result);
                                }
                        }
                }
                $result = str_replace("{", "&#123;", $result);
                $result = str_replace("}", "&#125;", $result);
                $result = str_replace("\\", "&#92;", $result);
                return $result;
        }

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assQuestion::QTIMaterialToString ( $ a_material )

Reads an QTI material tag an creates a text string.

Parameters:

string

$a_material QTI material tag

Returns:: string text or xhtml string public

Definition at line 2191 of file class.assQuestion.php.

References $_SESSION, and $result.

Referenced by assTextSubset::fromXML(), assTextQuestion::fromXML(), assSingleChoice::fromXML(), assOrderingQuestion::fromXML(), assNumeric::fromXML(), assMultipleChoice::fromXML(), assMatchingQuestion::fromXML(), assJavaApplet::fromXML(), assImagemapQuestion::fromXML(), and assClozeTest::fromXML().

        {
                $result = "";
                for ($i = 0; $i < $a_material->getMaterialCount(); $i++)
                {
                        $material = $a_material->getMaterial($i);
                        if (strcmp($material["type"], "mattext") == 0)
                        {
                                $result .= $material["material"]->getContent();
                        }
                        if (strcmp($material["type"], "matimage") == 0)
                        {
                                $matimage = $material["material"];
                                if (preg_match("/(il_([0-9]+)_mob_([0-9]+))/", $matimage->getLabel(), $matches))
                                {
                                        // import an mediaobject which was inserted using tiny mce
                                        if (!is_array($_SESSION["import_mob_xhtml"])) $_SESSION["import_mob_xhtml"] = array();
                                        array_push($_SESSION["import_mob_xhtml"], array("mob" => $matimage->getLabel(), "uri" => $matimage->getUri()));
                                }
                        }
                }
                return $result;
        }

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assQuestion::questionTitleExists	(	$	questionpool_id,
		$	title
	)

Returns TRUE if the question title exists in the database.

Returns TRUE if the question title exists in the database

Parameters:

string

$title The title of the question

Returns:: boolean The result of the title check public

Definition at line 270 of file class.assQuestion.php.

References $query, $result, and $title.

        {
                global $ilDB;
                
                $query = sprintf("SELECT * FROM qpl_questions WHERE obj_fi = %s AND title = %s",
                        $ilDB->quote($questionpool_id . ""),
                        $ilDB->quote($title)
                        );
                $result = $ilDB->query($query);
                if (strcmp(strtolower(get_class($result)), db_result) == 0)
                {
                        if ($result->numRows() == 1)
                        {
                                return TRUE;
                        }
                }
                return FALSE;
        }

assQuestion::saveToDb ( $ original_id = "" )

Saves the question to the database.

Saves the question to the database

Parameters:

integer

$original_id public

Reimplemented in assClozeTest, assImagemapQuestion, assJavaApplet, assMatchingQuestion, assMultipleChoice, assNumeric, assOrderingQuestion, assQuestionTypeTemplate, assSingleChoice, assTextQuestion, and assTextSubset.

Definition at line 1483 of file class.assQuestion.php.

References $query, $result, ilInternalLink::_deleteAllLinksOfSource(), ilInternalLink::_saveLink(), ilObjQuestionPool::_updateQuestionCount(), and getId().

        {
                global $ilDB;
                
                include_once "./content/classes/Pages/class.ilInternalLink.php";
                $query = sprintf("DELETE FROM qpl_suggested_solutions WHERE question_fi = %s",
                        $ilDB->quote($this->getId() . "")
                );
                $result = $ilDB->query($query);
                ilInternalLink::_deleteAllLinksOfSource("qst", $this->getId());
                foreach ($this->suggested_solutions as $index => $solution)
                {
                        $query = sprintf("INSERT INTO qpl_suggested_solutions (suggested_solution_id, question_fi, internal_link, import_id, subquestion_index, TIMESTAMP) VALUES (NULL, %s, %s, %s, %s, NULL)",
                                $ilDB->quote($this->getId() . ""),
                                $ilDB->quote($solution["internal_link"] . ""),
                                $ilDB->quote($solution["import_id"] . ""),
                                $ilDB->quote($index . "")
                        );
                        $ilDB->query($query);
                        if (preg_match("/il_(\d*?)_(\w+)_(\d+)/", $solution["internal_link"], $matches))
                        {
                                ilInternalLink::_saveLink("qst", $this->getId(), $matches[2], $matches[3], $matches[1]);
                        }
                }
                // update question count of question pool
                include_once "./assessment/classes/class.ilObjQuestionPool.php";
                ilObjQuestionPool::_updateQuestionCount($this->obj_id);
        }

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assQuestion::saveWorkingData	(	$	active_id,
		$	pass = `NULL`
	)

Saves the learners input of the question to the database.

Saves the learners input of the question to the database

*

Parameters:

integer

$test_id The database id of the test containing this question public

See also:: $answers

Reimplemented in assClozeTest, assImagemapQuestion, assJavaApplet, assMatchingQuestion, assMultipleChoice, assNumeric, assOrderingQuestion, assQuestionTypeTemplate, assSingleChoice, assTextQuestion, and assTextSubset.

Definition at line 855 of file class.assQuestion.php.

References $query, $result, ilObjAssessmentFolder::_enabledAssessmentLogging(), ilObjAssessmentFolder::_getLogLanguage(), ilObjTest::_getPass(), ilCourseObjectiveResult::_updateObjectiveResult(), calculateReachedPoints(), getId(), and logAction().

        {
                global $ilDB;
                global $ilUser;
                include_once "./assessment/classes/class.ilObjTest.php";
                $pass = ilObjTest::_getPass($active_id);
                $reached_points = $this->calculateReachedPoints($active_id, $pass);
                $query = sprintf("REPLACE INTO tst_test_result (active_fi, question_fi, pass, points) VALUES (%s, %s, %s, %s)",
                        $ilDB->quote($active_id . ""),
                        $ilDB->quote($this->getId() . ""),
                        $ilDB->quote($pass . ""),
                        $ilDB->quote($reached_points . "")
                );
                $result = $ilDB->query($query);
                include_once ("./classes/class.ilObjAssessmentFolder.php");
                if (ilObjAssessmentFolder::_enabledAssessmentLogging())
                {
                        $this->logAction(sprintf($this->lng->txtlng("assessment", "log_user_answered_question", ilObjAssessmentFolder::_getLogLanguage()), $reached_points), $active_id, $this->getId());
                }

                // Update objective status
                include_once 'course/classes/class.ilCourseObjectiveResult.php';

                ilCourseObjectiveResult::_updateObjectiveResult($ilUser->getId(),$active_id,$this->getId());
                
        }

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assQuestion::setAuthor ( $ author = "" )

Sets the authors name.

Sets the authors name of the assQuestion object

Parameters:

string

$author A string containing the name of the questions author public

See also:: $author

Definition at line 430 of file class.assQuestion.php.

References $author.

Referenced by assTextSubset::fromXML(), assTextQuestion::fromXML(), assSingleChoice::fromXML(), assOrderingQuestion::fromXML(), assNumeric::fromXML(), assMultipleChoice::fromXML(), assMatchingQuestion::fromXML(), assJavaApplet::fromXML(), assImagemapQuestion::fromXML(), and assClozeTest::fromXML().

        {
                if (!$author)
                {
                        $author = $this->ilias->account->fullname;
                }
                $this->author = $author;
        }

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assQuestion::setComment ( $ comment = "" )

Sets the comment.

Sets the comment string of the assQuestion object

Parameters:

string

$comment A comment string to describe the question public

See also:: $comment

Definition at line 340 of file class.assQuestion.php.

References $comment.

Referenced by assTextSubset::fromXML(), assTextQuestion::fromXML(), assSingleChoice::fromXML(), assOrderingQuestion::fromXML(), assNumeric::fromXML(), assMultipleChoice::fromXML(), assMatchingQuestion::fromXML(), assJavaApplet::fromXML(), assImagemapQuestion::fromXML(), assClozeTest::fromXML(), and assQuestionTypeTemplate::loadFromDb().

        {
                $this->comment = $comment;
        }

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assQuestion::setEstimatedWorkingTime	(	$	hour = `0`,
		$	min = `0`,
		$	sec = `0`
	)

Sets the estimated working time of a question.

Sets the estimated working time of a question

Parameters:

	integer	$hour Hour
	integer	$min Minutes
	integer	$sec Seconds public

See also:: $comment

Definition at line 392 of file class.assQuestion.php.

Referenced by assQuestion(), assTextSubset::fromXML(), assTextQuestion::fromXML(), assSingleChoice::fromXML(), assOrderingQuestion::fromXML(), assNumeric::fromXML(), assMultipleChoice::fromXML(), assMatchingQuestion::fromXML(), assJavaApplet::fromXML(), assImagemapQuestion::fromXML(), assClozeTest::fromXML(), assTextSubset::loadFromDb(), assTextQuestion::loadFromDb(), assSingleChoice::loadFromDb(), assOrderingQuestion::loadFromDb(), assNumeric::loadFromDb(), assMultipleChoice::loadFromDb(), assMatchingQuestion::loadFromDb(), assJavaApplet::loadFromDb(), assImagemapQuestion::loadFromDb(), and assClozeTest::loadFromDb().

        {
                $this->est_working_time = array("h" => (int)$hour, "m" => (int)$min, "s" => (int)$sec);
        }

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assQuestion::setId ( $ id = -1 )

Sets the id.

Sets the id of the assQuestion object

Parameters:

integer

$id A unique integer value public

See also:: $id

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

References $id.

Referenced by assQuestionTypeTemplate::loadFromDb(), and assQuestionTypeTemplate::saveToDb().

        {
                $this->id = $id;
        }

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assQuestion::setMultilineAnswerSetting ( $ a_setting = 0 )

Definition at line 2094 of file class.assQuestion.php.

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

assQuestion::setObjId ( $ obj_id = 0 )

Set the object id of the container object.

Set the object id of the container object

Parameters:

integer

$obj_id The object id of the container object public

See also:: $obj_id

Definition at line 606 of file class.assQuestion.php.

References $obj_id.

Referenced by assTextSubset::fromXML(), assTextQuestion::fromXML(), assSingleChoice::fromXML(), assOrderingQuestion::fromXML(), assNumeric::fromXML(), assMultipleChoice::fromXML(), assMatchingQuestion::fromXML(), assJavaApplet::fromXML(), assImagemapQuestion::fromXML(), and assClozeTest::fromXML().

        {
                $this->obj_id = $obj_id;
        }

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assQuestion::setOutputType ( $ outputType = OUTPUT_HTML )

Sets the output type.

Sets the output type

Parameters:

integer

$outputType The output type of the question public

See also:: $outputType

Reimplemented in assMultipleChoice, and assSingleChoice.

Definition at line 354 of file class.assQuestion.php.

References $outputType.

        {
                $this->outputType = $outputType;
        }

assQuestion::setOwner ( $ owner = "" )

Sets the creator/owner.

Sets the creator/owner ID of the assQuestion object

Parameters:

integer

$owner A numerical ID to identify the owner/creator public

See also:: $owner

Definition at line 448 of file class.assQuestion.php.

References $owner.

Referenced by assTextSubset::fromXML(), assTextQuestion::fromXML(), assSingleChoice::fromXML(), assOrderingQuestion::fromXML(), assNumeric::fromXML(), assMultipleChoice::fromXML(), assMatchingQuestion::fromXML(), assJavaApplet::fromXML(), assImagemapQuestion::fromXML(), and assClozeTest::fromXML().

        {
                $this->owner = $owner;
        }

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assQuestion::setPoints ( $ a_points )

Sets the maximum available points for the question.

Sets the maximum available points for the question

Parameters:

integer

$a_points The points public

Definition at line 1877 of file class.assQuestion.php.

Referenced by assTextQuestion::fromXML(), and assJavaApplet::fromXML().

        {
                $this->points = $a_points;
        }

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assQuestion::setShuffle ( $ shuffle = true )

Sets the shuffle flag.

Sets the shuffle flag

Parameters:

boolean

$shuffle A flag indicating whether the answers are shuffled or not public

See also:: $shuffle

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

References $shuffle.

Referenced by assSingleChoice::fromXML(), assOrderingQuestion::fromXML(), assMultipleChoice::fromXML(), assMatchingQuestion::fromXML(), assSingleChoice::loadFromDb(), and assMultipleChoice::loadFromDb().

        {
                if ($shuffle)
                {
                        $this->shuffle = 1;
                }
                        else
                {
                        $this->shuffle = 0;
                }
        }

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assQuestion::setSuggestedSolution	(	$	solution_id = `""`,
		$	subquestion_index = `0`,
		$	is_import = `false`
	)

Sets a suggested solution for the question.

Sets a suggested solution for the question. If there is more than one subquestion (i.e. close questions) may enter a subquestion index.

Parameters:

	string	$solution_id An internal link pointing to the suggested solution
	integer	$subquestion_index The index of a subquestion (i.e. a close test gap). Usually 0
	boolean	$is_import A boolean indication that the internal link was imported from another ILIAS installation public

Definition at line 1588 of file class.assQuestion.php.

References _resolveInternalLink().

Referenced by assTextSubset::fromXML(), assTextQuestion::fromXML(), assSingleChoice::fromXML(), assOrderingQuestion::fromXML(), assNumeric::fromXML(), assMultipleChoice::fromXML(), assMatchingQuestion::fromXML(), assJavaApplet::fromXML(), assImagemapQuestion::fromXML(), and assClozeTest::fromXML().

        {
                if (strcmp($solution_id, "") != 0)
                {
                        $import_id = "";
                        if ($is_import)
                        {
                                $import_id = $solution_id;
                                $solution_id = $this->_resolveInternalLink($import_id);
                        }
                        $this->suggested_solutions[$subquestion_index] = array(
                                "internal_link" => $solution_id,
                                "import_id" => $import_id
                        );
                }
        }

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assQuestion::setTestId ( $ id = -1 )

Sets the test id.

Sets the test id of the assQuestion object

Parameters:

integer

$id A unique integer value public

See also:: $test_id

Definition at line 326 of file class.assQuestion.php.

References $id.

        {
                $this->test_id = $id;
        }

assQuestion::setTitle ( $ title = "" )

Sets the title string.

Sets the title string of the assQuestion object

Parameters:

string

$title A title string to describe the question public

See also:: $title

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

References $title.

Referenced by assTextSubset::fromXML(), assTextQuestion::fromXML(), assSingleChoice::fromXML(), assOrderingQuestion::fromXML(), assNumeric::fromXML(), assMultipleChoice::fromXML(), assMatchingQuestion::fromXML(), assJavaApplet::fromXML(), assImagemapQuestion::fromXML(), assClozeTest::fromXML(), and assQuestionTypeTemplate::loadFromDb().

        {
                $this->title = $title;
        }

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assQuestion::syncWithOriginal ( )

Reimplemented in assClozeTest, assImagemapQuestion, assJavaApplet, assMatchingQuestion, assMultipleChoice, assNumeric, assOrderingQuestion, assQuestionTypeTemplate, assSingleChoice, assTextQuestion, and assTextSubset.

Definition at line 1764 of file class.assQuestion.php.

References $query, $result, ilInternalLink::_deleteAllLinksOfSource(), and ilInternalLink::_saveLink().

        {
                global $ilDB;
                
                include_once "./content/classes/Pages/class.ilInternalLink.php";
                $query = sprintf("DELETE FROM qpl_suggested_solutions WHERE question_fi = %s",
                        $ilDB->quote($this->original_id . "")
                );
                $result = $ilDB->query($query);
                ilInternalLink::_deleteAllLinksOfSource("qst", $this->original_id);
                foreach ($this->suggested_solutions as $index => $solution)
                {
                        $query = sprintf("INSERT INTO qpl_suggested_solutions (suggested_solution_id, question_fi, internal_link, import_id, subquestion_index, TIMESTAMP) VALUES (NULL, %s, %s, %s, %s, NULL)",
                                $ilDB->quote($this->original_id . ""),
                                $ilDB->quote($solution["internal_link"] . ""),
                                $ilDB->quote($solution["import_id"] . ""),
                                $ilDB->quote($index . "")
                        );
                        $ilDB->query($query);
                        if (preg_match("/il_(\d*?)_(\w+)_(\d+)/", $solution["internal_link"], $matches))
                        {
                                ilInternalLink::_saveLink("qst", $this->original_id, $matches[2], $matches[3], $matches[1]);
                        }
                }
        }

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assQuestion::to_xml ( )

Returns a QTI xml representation of the question.

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 public

Definition at line 243 of file class.assQuestion.php.

        {
                // to be implemented in the successor classes of assQuestion
        }

Field Documentation

assQuestion::$author

Definition at line 84 of file class.assQuestion.php.

Referenced by assClozeTest::assClozeTest(), assImagemapQuestion::assImagemapQuestion(), assJavaApplet::assJavaApplet(), assMatchingQuestion::assMatchingQuestion(), assMultipleChoice::assMultipleChoice(), assNumeric::assNumeric(), assOrderingQuestion::assOrderingQuestion(), assQuestion(), assQuestionTypeTemplate::assQuestionTypeTemplate(), assSingleChoice::assSingleChoice(), assTextQuestion::assTextQuestion(), assTextSubset::assTextSubset(), assTextSubset::duplicate(), assTextQuestion::duplicate(), assSingleChoice::duplicate(), assQuestionTypeTemplate::duplicate(), assOrderingQuestion::duplicate(), assNumeric::duplicate(), assMultipleChoice::duplicate(), assMatchingQuestion::duplicate(), assJavaApplet::duplicate(), assImagemapQuestion::duplicate(), assClozeTest::duplicate(), and setAuthor().

assQuestion::$comment

Definition at line 64 of file class.assQuestion.php.

Referenced by assClozeTest::assClozeTest(), assImagemapQuestion::assImagemapQuestion(), assJavaApplet::assJavaApplet(), assMatchingQuestion::assMatchingQuestion(), assMultipleChoice::assMultipleChoice(), assNumeric::assNumeric(), assOrderingQuestion::assOrderingQuestion(), assQuestion(), assQuestionTypeTemplate::assQuestionTypeTemplate(), assSingleChoice::assSingleChoice(), assTextQuestion::assTextQuestion(), assTextSubset::assTextSubset(), and setComment().

assQuestion::$domxml

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

assQuestion::$est_working_time

Definition at line 104 of file class.assQuestion.php.

assQuestion::$id

Definition at line 46 of file class.assQuestion.php.

Referenced by setId(), and setTestId().

assQuestion::$ilias

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

Referenced by assQuestion().

assQuestion::$lng

Definition at line 158 of file class.assQuestion.php.

Referenced by assQuestion(), and assClozeTest::updateAllGapParams().

assQuestion::$obj_id

Definition at line 131 of file class.assQuestion.php.

Referenced by delete(), and setObjId().

assQuestion::$outputType

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

Referenced by setOutputType().

assQuestion::$owner

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

Referenced by assClozeTest::assClozeTest(), assImagemapQuestion::assImagemapQuestion(), assJavaApplet::assJavaApplet(), assMatchingQuestion::assMatchingQuestion(), assMultipleChoice::assMultipleChoice(), assNumeric::assNumeric(), assOrderingQuestion::assOrderingQuestion(), assQuestion(), assQuestionTypeTemplate::assQuestionTypeTemplate(), assSingleChoice::assSingleChoice(), assTextQuestion::assTextQuestion(), assTextSubset::assTextSubset(), assTextSubset::duplicate(), assTextQuestion::duplicate(), assSingleChoice::duplicate(), assQuestionTypeTemplate::duplicate(), assOrderingQuestion::duplicate(), assNumeric::duplicate(), assMultipleChoice::duplicate(), assMatchingQuestion::duplicate(), assJavaApplet::duplicate(), assImagemapQuestion::duplicate(), assClozeTest::duplicate(), and setOwner().

assQuestion::$points

Definition at line 95 of file class.assQuestion.php.

assQuestion::$shuffle

Definition at line 113 of file class.assQuestion.php.

Referenced by assClozeTest::addAnswer(), assClozeTest::createCloseTextFromArray(), assTextSubset::fromXML(), assSingleChoice::fromXML(), assOrderingQuestion::fromXML(), assMultipleChoice::fromXML(), assMatchingQuestion::fromXML(), assClozeTest::fromXML(), assClozeTest::setClozeText(), assClozeTest::setGapShuffle(), and setShuffle().

assQuestion::$suggested_solutions

Definition at line 178 of file class.assQuestion.php.

assQuestion::$test_id

Definition at line 122 of file class.assQuestion.php.

Referenced by insertIntoTest().

assQuestion::$title

Definition at line 55 of file class.assQuestion.php.

Referenced by assClozeTest::assClozeTest(), assImagemapQuestion::assImagemapQuestion(), assJavaApplet::assJavaApplet(), assMatchingQuestion::assMatchingQuestion(), assMultipleChoice::assMultipleChoice(), assNumeric::assNumeric(), assOrderingQuestion::assOrderingQuestion(), assQuestion(), assQuestionTypeTemplate::assQuestionTypeTemplate(), assSingleChoice::assSingleChoice(), assTextQuestion::assTextQuestion(), assTextSubset::assTextSubset(), assTextSubset::copyObject(), assTextQuestion::copyObject(), assSingleChoice::copyObject(), assQuestionTypeTemplate::copyObject(), assOrderingQuestion::copyObject(), assNumeric::copyObject(), assMultipleChoice::copyObject(), assMatchingQuestion::copyObject(), assJavaApplet::copyObject(), assImagemapQuestion::copyObject(), assClozeTest::copyObject(), assTextSubset::duplicate(), assTextQuestion::duplicate(), assSingleChoice::duplicate(), assQuestionTypeTemplate::duplicate(), assOrderingQuestion::duplicate(), assNumeric::duplicate(), assMultipleChoice::duplicate(), assMatchingQuestion::duplicate(), assJavaApplet::duplicate(), assImagemapQuestion::duplicate(), assClozeTest::duplicate(), getSuggestedSolutionTitle(), questionTitleExists(), and setTitle().

assQuestion::$tpl

Definition at line 149 of file class.assQuestion.php.

Referenced by assQuestion().

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

assessment/classes/class.assQuestion.php

assQuestion Class Reference

Public Member Functions

Data Fields

Detailed Description

Member Function Documentation

Field Documentation