Collaboration diagram for ilAssQuestionTypeOrderer:

Public Member Functions
	__construct ($unOrderedTypes, $orderMode=self::ORDER_MODE_ALPHA)
	Constructor.
	getOrderedTypes ()
	getter for ordered question types
	fixQuestionTypeOrderSortCallback ($a, $b)
	custom sort callback for ordering the question types

Data Fields
const	ORDER_MODE_FIX = 'fix'
	order mode with fixed priority for ordering
const	ORDER_MODE_ALPHA = 'alpha'
	order mode that orders by alphanumerical priority

Static Public Attributes
static	$fixQuestionTypeOrder
static	$flippedQuestionTypeOrder = null

Detailed Description

Definition at line 14 of file class.ilAssQuestionTypeOrderer.php.

Constructor & Destructor Documentation

ilAssQuestionTypeOrderer::__construct	(	$unOrderedTypes,
		$orderMode = `self::ORDER_MODE_ALPHA`
	)

Constructor.

Parameters

array	$unOrderedTypes
string	$orderMode

Exceptions

ilTestQuestionPoolException

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

        {
                self::$flippedQuestionTypeOrder = array_flip(self::$fixQuestionTypeOrder);
                
                $this->types = $unOrderedTypes;
                
                switch($orderMode)
                {
                        case self::ORDER_MODE_FIX:
                                
                                uasort($this->types, array($this, 'fixQuestionTypeOrderSortCallback'));
                                break;
                        
                        case self::ORDER_MODE_ALPHA:
                                
                                ksort($this->types);
                                break;
                        
                        default:
                                
                                throw new ilTestQuestionPoolException('invalid order mode given: '.$orderMode);
                }
        }

Member Function Documentation

ilAssQuestionTypeOrderer::fixQuestionTypeOrderSortCallback	(	$a,
		$b
	)

custom sort callback for ordering the question types

public

Parameters

array	$a
array	$b

Returns: integer

Definition at line 108 of file class.ilAssQuestionTypeOrderer.php.

        {
                $r = 0;
                
                if( self::$flippedQuestionTypeOrder[ $a['type_tag'] ] > self::$flippedQuestionTypeOrder[ $b['type_tag'] ] )
                {
                        $r = 1;
                }
                elseif( self::$flippedQuestionTypeOrder[ $a['type_tag'] ] < self::$flippedQuestionTypeOrder[ $b['type_tag'] ] )
                {
                        $r = -1;
                }
                
                return $r;
        }

ilAssQuestionTypeOrderer::getOrderedTypes ( )

getter for ordered question types

Returns: array $orderedQuestionTypes

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

        {
                return $this->types;
        }

Field Documentation

ilAssQuestionTypeOrderer::$fixQuestionTypeOrder

static

Initial value:

 array(
                'assSingleChoice',
                'assMultipleChoice',
                'assErrorText',
                'assImagemapQuestion',
                'assClozeTest',
                'assNumeric',
                'assTextSubset',
                'assOrderingQuestion',
                'assOrderingHorizontal',
                'assMatchingQuestion',
                'assTextQuestion',
                'assFileUpload',
                'assFlashQuestion',
                'assJavaApplet'
        )