public static function getQuizAnwsers(QuizData $qd, Quizset $quizset)
{
$users = $qd->getUsersWhoFinished($quizset->getId());
if (!$users && empty($users)) {
throw new \InvalidArgumentException("There is no users");
}
$quizAnsCollection = QuizCollection::create($qd, $users);
return $quizAnsCollection->getOutcome();
}
public function setAnwsers(QuizData $qd)
{
$anwsers = $qd->getUserAnwsers($this->id, $this->idSet);
$this->anwserCollection = new AnwserCollection($anwsers);
}
