Ojs\CoreBundle\Service\SampleObjectLoader::loadJournalIndex PHP Метод

    public function loadJournalIndex()
    {
        $journal = $this->em->getRepository(Journal::class)->find(1);
        $index = $this->em->getRepository(Index::class)->find(1);
        $entity = new JournalIndex();
        $entity->setIndex($index);
        $entity->setLink('http://ojs.io');
        $entity->setJournal($journal);
        $this->em->persist($entity);
        $this->em->flush();
        return $entity->getId();
    }