public function earlyPreviewAction(Request $request)
{
$em = $this->getDoctrine()->getManager();
$currentHost = $request->getHttpHost();
$journal = $em->getRepository(Journal::class)->findOneBy(array('domain' => $currentHost, 'status' => JournalStatuses::STATUS_PUBLISHED));
$this->throw404IfNotFound($journal);
$response = $this->forward('OjsSiteBundle:Journal:earlyPreviewIndex', array('slug' => $journal->getSlug(), 'isJournalHosting' => true));
return $response;
}