ilTestRandomQuestionSetQuestionCollection Class Reference

Collaboration diagram for ilTestRandomQuestionSetQuestionCollection:

Public Member Functions
	setQuestions ($questions)
	getQuestions ()
	addQuestion (ilTestRandomQuestionSetQuestion $question)
	isGreaterThan ($amount)
	isSmallerThan ($amount)
	getMissingCount ($amount)
	shuffleQuestions ()
	mergeQuestionCollection (self $questionCollection)
	getUniqueQuestionCollection ()
	getRelativeComplementCollection (self $questionCollection)
	getInvolvedQuestionIds ()
	getRandomQuestionCollection ($requiredAmount)

Private Member Functions
	getRandomArrayKeys ($array, $numKeys)

Private Attributes
	$questions = array()

Detailed Description

Definition at line 12 of file class.ilTestRandomQuestionSetQuestionCollection.php.

Member Function Documentation

addQuestion()

ilTestRandomQuestionSetQuestionCollection::addQuestion

(

ilTestRandomQuestionSetQuestion

$question

)

Definition at line 26 of file class.ilTestRandomQuestionSetQuestionCollection.php.

        {
                $this->questions[] = $question;
        }

getInvolvedQuestionIds()

ilTestRandomQuestionSetQuestionCollection::getInvolvedQuestionIds

(

)

Definition at line 93 of file class.ilTestRandomQuestionSetQuestionCollection.php.

        {
                $questionIds = array();
 
                foreach($this->getQuestions() as $question)
                {
                        $questionIds[] = $question->getQuestionId();
                }
 
                return $questionIds;
        }

References getQuestions().

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getMissingCount()

ilTestRandomQuestionSetQuestionCollection::getMissingCount

(

$amount

)

Definition at line 41 of file class.ilTestRandomQuestionSetQuestionCollection.php.

        {
                return $amount - count($this->questions);
        }

getQuestions()

ilTestRandomQuestionSetQuestionCollection::getQuestions

(

)

Definition at line 21 of file class.ilTestRandomQuestionSetQuestionCollection.php.

        {
                return $this->questions;
        }

References $questions.

Referenced by getInvolvedQuestionIds(), getRelativeComplementCollection(), and getUniqueQuestionCollection().

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getRandomArrayKeys()

ilTestRandomQuestionSetQuestionCollection::getRandomArrayKeys (   $array,   $numKeys  )

private

Definition at line 119 of file class.ilTestRandomQuestionSetQuestionCollection.php.

        {
                if( $numKeys < 1 )
                {
                        return array();
                }
 
                if( $numKeys > 1 )
                {
                        return array_rand($array, $numKeys);
                }
 
                return array( array_rand($array, $numKeys) );
        }

Referenced by getRandomQuestionCollection().

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getRandomQuestionCollection()

ilTestRandomQuestionSetQuestionCollection::getRandomQuestionCollection

(

$requiredAmount

)

Definition at line 105 of file class.ilTestRandomQuestionSetQuestionCollection.php.

        {
                $randomKeys = $this->getRandomArrayKeys($this->questions, $requiredAmount);
 
                $randomQuestionCollection = new self();
 
                foreach($randomKeys as $randomKey)
                {
                        $randomQuestionCollection->addQuestion( $this->questions[$randomKey] );
                }
 
                return $randomQuestionCollection;
        }

References getRandomArrayKeys().

Referenced by ilTestRandomQuestionSetBuilder\fetchQuestionsFromStageRandomly().

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getRelativeComplementCollection()

ilTestRandomQuestionSetQuestionCollection::getRelativeComplementCollection

(

self

$questionCollection

)

Definition at line 76 of file class.ilTestRandomQuestionSetQuestionCollection.php.

        {
                $questionIds = array_flip( $questionCollection->getInvolvedQuestionIds() );
 
                $relativeComplementCollection = new self();
 
                foreach($this->getQuestions() as $question)
                {
                        if( !isset($questionIds[$question->getQuestionId()]) )
                        {
                                $relativeComplementCollection->addQuestion($question);
                        }
                }
 
                return $relativeComplementCollection;
        }

References getQuestions().

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getUniqueQuestionCollection()

ilTestRandomQuestionSetQuestionCollection::getUniqueQuestionCollection

(

)

Definition at line 56 of file class.ilTestRandomQuestionSetQuestionCollection.php.

        {
                $uniqueQuestions = array();
 
                foreach($this->getQuestions() as $question)
                {
                        /* @var ilTestRandomQuestionSetQuestion $question */
 
                        if( !isset($uniqueQuestions[$question->getQuestionId()]) )
                        {
                                $uniqueQuestions[$question->getQuestionId()] = $question;
                        }
                }
 
                $uniqueQuestionCollection = new self();
                $uniqueQuestionCollection->setQuestions($uniqueQuestions);
 
                return $uniqueQuestionCollection;
        }

References getQuestions().

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isGreaterThan()

ilTestRandomQuestionSetQuestionCollection::isGreaterThan

(

$amount

)

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

        {
                return count($this->questions) > $amount;
        }

isSmallerThan()

ilTestRandomQuestionSetQuestionCollection::isSmallerThan

(

$amount

)

Definition at line 36 of file class.ilTestRandomQuestionSetQuestionCollection.php.

        {
                return count($this->questions) < $amount;
        }

mergeQuestionCollection()

ilTestRandomQuestionSetQuestionCollection::mergeQuestionCollection

(

self

$questionCollection

)

Definition at line 51 of file class.ilTestRandomQuestionSetQuestionCollection.php.

        {
                $this->questions = array_merge( $this->questions, $questionCollection->getQuestions() );
        }

setQuestions()

ilTestRandomQuestionSetQuestionCollection::setQuestions

(

$questions

)

Definition at line 16 of file class.ilTestRandomQuestionSetQuestionCollection.php.

        {
                $this->questions = $questions;
        }

References $questions.

shuffleQuestions()

ilTestRandomQuestionSetQuestionCollection::shuffleQuestions

(

)

Definition at line 46 of file class.ilTestRandomQuestionSetQuestionCollection.php.

        {
                shuffle($this->questions);
        }

Referenced by ilTestRandomQuestionSetBuilder\handleQuestionOrdering().

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Field Documentation

$questions

ilTestRandomQuestionSetQuestionCollection::$questions = array()

private

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

Referenced by getQuestions(), and setQuestions().

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

• Modules/Test/classes/class.ilTestRandomQuestionSetQuestionCollection.php