ilTestShuffler Class Reference

Collaboration diagram for ilTestShuffler:

Public Member Functions
	__construct (protected Refinery $refinery)
	getAnswerShuffleFor (int $question_id, int $active_id, int $pass_id)

Data Fields
const	FIXED_SHUFFLER_SEED_MIN_LENGTH = 8

Protected Member Functions
	buildFixedShufflerSeed (int $question_id, int $pass_id, int $active_id)

Detailed Description

Definition at line 29 of file class.ilTestShuffler.php.

Constructor & Destructor Documentation

__construct()

ilTestShuffler::__construct

(

protected Refinery

$refinery

)

Definition at line 33 of file class.ilTestShuffler.php.

      {
    }

Member Function Documentation

buildFixedShufflerSeed()

ilTestShuffler::buildFixedShufflerSeed ( int  $question_id, int  $pass_id, int  $active_id  )

protected

Definition at line 47 of file class.ilTestShuffler.php.

                                                                                             : int
    {
        $seed = ($question_id + $pass_id) * $active_id;
        if (is_float($seed) && is_float($seed = $active_id + $pass_id)) {
            $seed = $active_id;
        }
 
        $div = ceil((10 ** (self::FIXED_SHUFFLER_SEED_MIN_LENGTH - 1)) / $seed);
        if ($div > 1) {
            $seed = $seed * ($div + $seed % 10);
        }
        return (int) $seed;
    }

getAnswerShuffleFor()

ilTestShuffler::getAnswerShuffleFor	(	int	$question_id,
		int	$active_id,
		int	$pass_id
	)

Definition at line 38 of file class.ilTestShuffler.php.

     : ShuffleTransformation {
        $fixedSeed = $this->buildFixedShufflerSeed($question_id, $pass_id, $active_id);
        return $this->refinery->random()->shuffleArray(new GivenSeed($fixedSeed));
    }

Field Documentation

FIXED_SHUFFLER_SEED_MIN_LENGTH

const ilTestShuffler::FIXED_SHUFFLER_SEED_MIN_LENGTH = 8

Definition at line 31 of file class.ilTestShuffler.php.

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

• components/ILIAS/Test/classes/class.ilTestShuffler.php