Ojs\JournalBundle\Entity\PublisherTheme::setPublisher PHP Метод

    public function setPublisher(Publisher $publisher)
    {
        $this->publisher = $publisher;
        return $this;
    }

 /**
  * @return int
  */
 public function loadPublisherTheme()
 {
     $entity = new PublisherTheme();
     $entity->setPublisher($this->em->getRepository(Publisher::class)->find(1))->setTitle('Sample Publisher Theme')->setPublic(true)->setCss('.sample-css{}');
     $this->em->persist($entity);
     $this->em->flush();
     return $entity->getId();
 }