/**
* Close a Paper that is not finished (because the Exercise does not allow interruption).
*
* @param Paper $paper
*/
public function closePaper(Paper $paper)
{
if (!$paper->getEnd()) {
$paper->setEnd(new \DateTime());
}
$paper->setInterupt(true);
// keep track that the user has not finished
$paper->setScore($this->calculateScore($paper->getId()));
$this->om->flush();
$this->checkPaperEvaluated($paper);
}
