Ojs\CoreBundle\Service\SampleObjectLoader::loadJournalPost PHP Method

    public function loadJournalPost()
    {
        $journal = $this->em->getRepository(Journal::class)->find(1);
        $entity = new JournalPost();
        $entity->setCurrentLocale('tr')->setTitle('Post Title')->setSlug('post-title')->setContent('Content')->setJournal($journal);
        $this->em->persist($entity);
        $this->em->flush();
        return $entity->getId();
    }