ilAssLacEmptyAnswerExpression Class Reference

Class EmptyAnswerExpression. More...

Inheritance diagram for ilAssLacEmptyAnswerExpression:

Collaboration diagram for ilAssLacEmptyAnswerExpression:

Public Member Functions
	getValue ()
	Get the value of this Expression. More...
	getDescription ()
	Get a human readable description of the Composite element. More...
	checkResult ($result, $comperator, $index=null)
Public Member Functions inherited from ilAssLacAbstractExpression
	parseValue ($value)
	Parses the delivered Value and sets the relevant information for an Expression as attributes. More...
Public Member Functions inherited from ilAssLacAbstractComposite
	addNode (ilAssLacCompositeInterface $node)
	Adds an ilAssLacCompositeInterface object to the node array which represents the condition tree structure. More...
	describe ()
	Describes a Composite tree Structure as human readable string. More...
	addNode (ilAssLacCompositeInterface $node)
	Adds an CompositeInterface object to the node array which represents the condition tree structure. More...
	describe ()
	Describes a Composite tree Structure as human readable string. More...
	getDescription ()
	Get a human readable description of the Composite element. More...
	getValue ()
	Get the value of this Expression. More...
	parseValue ($value)
	Parses the delivered Value and sets the relevant information for an Expression as attributes. More...
	checkResult ($result, $comperator, $index=null)

Static Public Attributes
static	$pattern = '/(\?)/'
static	$identifier = "?"

Protected Member Functions
	getPattern ()
	Get the Pattern to match relevant informations for an Expression. More...
	setMatches ($matches)
	Sets the result of the parsed value by a specific expression pattern. More...
	getPattern ()
	Get the Pattern to match relevant informations for an Expression. More...
	setMatches ($matches)
	Sets the result of the parsed value by a specific expression pattern. More...

Protected Attributes
	$matched

Additional Inherited Members
Data Fields inherited from ilAssLacAbstractComposite
	$nodes = array()

Detailed Description

Class EmptyAnswerExpression.

Date: 15.05.14 Time: 08:51

Author

Thomas Joußen tjous.nosp@m.sen@.nosp@m.datab.nosp@m.ay.d.nosp@m.e

Definition at line 13 of file ilAssLacEmptyAnswerExpression.php.

Member Function Documentation

checkResult()

ilAssLacEmptyAnswerExpression::checkResult	(		$result,
			$comperator,
			$index = null
	)

Parameters

ilUserQuestionResult	$result
string	$comperator
null | int	$index

Returns

bool

Implements ilAssLacSolutionExpressionInterface.

Definition at line 54 of file ilAssLacEmptyAnswerExpression.php.

    {
        if ($index == null) {
            switch ($comperator) {
                case "=":
                    return !$result->hasSolutions();
                    break;
                case "<>":
                    return $result->hasSolutions();
                    break;
                default:
                    return false;
            }
        } else {
            $solution = $result->getSolutionForKey($index);
            switch ($comperator) {
                case "=":
                    return $solution == null;
                    break;
                case "<>":
                    return $solution != null;
                    break;
                default:
                    return false;
            }
        }
    }

References $index, and $result.

getDescription()

ilAssLacEmptyAnswerExpression::getDescription

(

)

Get a human readable description of the Composite element.

Returns

string

Implements ilAssLacCompositeInterface.

Definition at line 42 of file ilAssLacEmptyAnswerExpression.php.

    {
        return " nicht beantwortet";
    }

getPattern()

ilAssLacEmptyAnswerExpression::getPattern ( )

protected

Get the Pattern to match relevant informations for an Expression.

Returns

string

Reimplemented from ilAssLacAbstractExpression.

Definition at line 24 of file ilAssLacEmptyAnswerExpression.php.

    {
        return '/(\?)/';
    }

getValue()

ilAssLacEmptyAnswerExpression::getValue

(

)

Get the value of this Expression.

Returns

string

Implements ilAssLacExpressionInterface.

Definition at line 33 of file ilAssLacEmptyAnswerExpression.php.

    {
        return "?";
    }

setMatches()

ilAssLacEmptyAnswerExpression::setMatches (   $matches )

protected

Sets the result of the parsed value by a specific expression pattern.

See also

ExpressionInterface::parseValue()

ExpressionInterface::getPattern()

Parameters

array

$matches

Reimplemented from ilAssLacAbstractExpression.

Definition at line 89 of file ilAssLacEmptyAnswerExpression.php.

    {
        $this->matched = true;
    }

Field Documentation

$identifier

ilAssLacEmptyAnswerExpression::$identifier = "?"

static

Definition at line 17 of file ilAssLacEmptyAnswerExpression.php.

$matched

ilAssLacEmptyAnswerExpression::$matched

protected

Definition at line 22 of file ilAssLacEmptyAnswerExpression.php.

$pattern

ilAssLacEmptyAnswerExpression::$pattern = '/(\?)/'

static

Definition at line 15 of file ilAssLacEmptyAnswerExpression.php.

Referenced by ilAssLacExpressionManufacturer\getPattern(), and ilAssLacExpressionManufacturer\manufacture().

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

• Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Expressions/ilAssLacEmptyAnswerExpression.php