public static function numerateIssue(Issue $issue, ObjectManager $entityManager)
{
$journal = $issue->getJournal();
if ($issue->getNumerator() === null) {
try {
$numerator = $entityManager->getRepository('OjsJournalBundle:Numerator')->getIssueNumerator($journal);
$last = $numerator->getLast() + 1;
$numerator->setLast($last);
$issue->setNumerator($last);
} catch (NoResultException $exception) {
$numerator = new Numerator();
$numerator->setJournal($journal);
$numerator->setType('issue');
$numerator->setLast(1);
$issue->setNumerator(1);
}
$entityManager->persist($issue);
$entityManager->persist($numerator);
$entityManager->flush();
}
}