class.ilTestRandomQuestionCollectionSubsetApplication.php

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<?php

class ilTestRandomQuestionCollectionSubsetApplication extends ilTestRandomQuestionSetQuestionCollection
{
    protected $applicantId;

    protected $requiredAmount;

    public function getApplicantId(): int
    {
        return $this->applicantId;
    }

    public function setApplicantId($applicantId)
    {
        $this->applicantId = $applicantId;
    }

    public function getRequiredAmount(): int
    {
        return $this->requiredAmount;
    }

    public function setRequiredAmount($requiredAmount)
    {
        $this->requiredAmount = $requiredAmount;
    }

    /*
     * returns the fact if required amount is still positive
     */
    public function hasRequiredAmountLeft(): bool
    {
        return $this->getRequiredAmount() > 0;
    }

    public function decrementRequiredAmount()
    {
        $this->setRequiredAmount($this->getRequiredAmount() - 1);
    }

    public function hasQuestion($questionId): bool
    {
        return $this->getQuestion($questionId) !== null;
    }

    public function getQuestion($questionId): ?ilTestRandomQuestionSetQuestion
    {
        foreach ($this as $question) {
            if ($question->getQuestionId() != $questionId) {
                continue;
            }

            return $question;
        }

        return null;
    }
}