Class for cloze question numeric answers. More...

Inheritance diagram for assAnswerCloze:

Collaboration diagram for assAnswerCloze:

Public Member Functions
	__construct ($answertext="", $points=0.0, $order=0)
	assAnswerCloze constructor
	setLowerBound ($bound)
	Sets the lower boind.
	setUpperBound ($bound)
	Sets the upper bound.
	getLowerBound ()
	Returns the lower bound.
	getUpperBound ()
	Returns the upper bound.
Public Member Functions inherited from ASS_AnswerSimple
	__construct ($answertext="", $points=0.0, $order=0, $id=-1)
	ASS_AnswerSimple constructor.
	getId ()
	Gets the answer id.
	getAnswertext ()
	Gets the answer text.
	getPoints ()
	Gets the points.
	checkPoints ($a_points)
	Checks, if the point value is numeric.
	getOrder ()
	Gets the sort/display order.
	setOrder ($order=0)
	Sets the order.
	setId ($id=-1)
	Sets the answer id.
	setAnswertext ($answertext="")
	Sets the answer text.
	setPoints ($points=0.0)
	Sets the points.

Protected Member Functions
	getNumericValueFromAnswerText ()

Protected Attributes
	$lowerBound
	$upperBound
Protected Attributes inherited from ASS_AnswerSimple
	$answertext
	$points
	$order
	$id

Detailed Description

Class for cloze question numeric answers.

assAnswerCloze is a class for cloze questions numeric answers.

Author: Helmut Schottmüller helmu.nosp@m.t.sc.nosp@m.hottm.nosp@m.uell.nosp@m.er@ma.nosp@m.c.co.nosp@m.m; Maximilian Becker mbeck.nosp@m.er@d.nosp@m.ataba.nosp@m.y.de

Version

Id:: class.assAnswerCloze.php 51350 2014-07-11 12:42:35Z bheyser

See Also: ASS_AnswerBinaryState

Rework class to represent bounds as numerics instead of strings.

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

Constructor & Destructor Documentation

assAnswerCloze::__construct	(	$answertext = `""`,
		$points = `0.0`,
		$order = `0`
	)

assAnswerCloze constructor

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

Parameters

string	$answertext	A string defining the answer text
double	$points	The number of points given for the selected answer
integer	$order	A nonnegative value representing a possible display or sort order

Returns: assAnswerCloze See if the initialization of the bounds to null can be avoided to have them string/numeric at all times.

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

References ASS_AnswerSimple\$answertext, ASS_AnswerSimple\$order, and ASS_AnswerSimple\$points.

        {
                parent::__construct($answertext, $points, $order, -1);
                $this->lowerBound = NULL;
                $this->upperBound = NULL;
        }

Member Function Documentation

assAnswerCloze::getLowerBound ( )

Returns the lower bound.

Returns: null|string

Definition at line 129 of file class.assAnswerCloze.php.

References $lowerBound.

        {
                return $this->lowerBound;
        }

assAnswerCloze::getNumericValueFromAnswerText ( )

protected

Definition at line 116 of file class.assAnswerCloze.php.

References ASS_AnswerSimple\getAnswertext(), and ilUtil\stripSlashes().

Referenced by setUpperBound().

        {
                include_once("./Services/Math/classes/class.EvalMath.php");
                $eval = new EvalMath();
                $eval->suppress_errors = true;
                return $eval->e(str_replace(",", ".", ilUtil::stripSlashes($this->getAnswertext(), FALSE)));
        }

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assAnswerCloze::getUpperBound ( )

Returns the upper bound.

Returns: null|string

Definition at line 139 of file class.assAnswerCloze.php.

References $upperBound.

        {
                return $this->upperBound;
        }

assAnswerCloze::setLowerBound ( $bound )

Sets the lower boind.

Parameters

$bound string A string defining the lower bound of an answer for numeric gaps. : Refactor method to get rid of "locale magic".

Definition at line 70 of file class.assAnswerCloze.php.

References ASS_AnswerSimple\getAnswertext().

        {
                $bound = str_replace(",", ".", $bound); 
                if ($bound > $this->getAnswertext() || strlen($bound) == 0) 
                {
                        $bound = $this->getAnswertext();
                }
                
                if ( is_numeric($bound) )
                {
                        $this->lowerBound = $bound;
                }
                else
                {
                        // unreachable
                        // $this->lowerBound = $this->getAnswertext();
                }
        }

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assAnswerCloze::setUpperBound ( $bound )

Sets the upper bound.

Parameters

$bound string A string defining the upper bound of an answer for numeric gaps. : Refactor method to get rid of "locale magic".

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

References ASS_AnswerSimple\getAnswertext(), and getNumericValueFromAnswerText().

        {
                $bound = str_replace(",", ".", $bound);
                $value = $this->getNumericValueFromAnswerText();
                
                if ($bound < $value || strlen($bound) == 0)
                {
                        $bound = $value;
                }
                
                if ( is_numeric($bound) )
                {
                        $this->upperBound = $bound;
                }
                else
                {
                        $this->upperBound = $this->getAnswertext();
                }
        }