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...

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

Protected Member Functions
	getPattern ()
	setMatches ($matches)
	Sets the result of the parsed value by a specific expression pattern. More...
Protected Member Functions inherited from ilAssLacAbstractExpression
	getPattern ()
	Get the Pattern to match relevant informations for an Expression. More...
	setMatches ($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 55 of file ilAssLacEmptyAnswerExpression.php.

References $result.

        {
                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;
                        }
                }

        }

getDescription()

ilAssLacEmptyAnswerExpression::getDescription

(

)

Get a human readable description of the Composite element.

Returns

string

Implements ilAssLacCompositeInterface.

Definition at line 43 of file ilAssLacEmptyAnswerExpression.php.

        {
                return " nicht beantwortet";
        }

getPattern()

ilAssLacEmptyAnswerExpression::getPattern ( )

protected

Definition at line 25 of file ilAssLacEmptyAnswerExpression.php.

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

getValue()

ilAssLacEmptyAnswerExpression::getValue

(

)

Get the value of this Expression.

Returns

string

Implements ilAssLacExpressionInterface.

Definition at line 34 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

Definition at line 96 of file ilAssLacEmptyAnswerExpression.php.

        {
                $this->matched = true;
        }

Field Documentation

$identifier

ilAssLacEmptyAnswerExpression::$identifier = "?"

static

Definition at line 18 of file ilAssLacEmptyAnswerExpression.php.

$matched

ilAssLacEmptyAnswerExpression::$matched

protected

Definition at line 23 of file ilAssLacEmptyAnswerExpression.php.

$pattern

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

static

Definition at line 16 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