Newscoop\NewscoopBundle\Services\TopicService::saveNewTopic PHP Метод

    public function saveNewTopic(Topic $node, $locale = null)
    {
        $node->setTranslatableLocale($locale ?: $node->getTranslatableLocale());
        $topicTranslation = $this->getTopicRepository()->createQueryBuilder('t')->join('t.translations', 'tt')->where('tt.locale = :locale')->andWhere('tt.content = :title')->andWhere("tt.field = 'title'")->setParameters(array('title' => $node->getTitle(), 'locale' => $node->getTranslatableLocale()))->getQuery()->getOneOrNullResult();
        if ($topicTranslation) {
            throw new ResourcesConflictException('Topic already exists', 409);
        }
        if (!$node->getParent()) {
            $qb = $this->getTopicRepository()->createQueryBuilder('t');
            $maxOrderValue = $qb->select('MAX(t.topicOrder)')->setMaxResults(1)->getQuery()->getSingleScalarResult();
            $node->setOrder((int) $maxOrderValue + 1);
        }
        $node->addTranslation(new TopicTranslation($locale ?: $node->getTranslatableLocale(), 'title', $node->getTitle(), true));
        $this->em->persist($node);
        $metadata = $this->em->getClassMetaData(get_class($node));
        $metadata->setIdGeneratorType(\Doctrine\ORM\Mapping\ClassMetadata::GENERATOR_TYPE_NONE);
        $this->em->flush();
        $this->dispatcher->dispatch('topic.create', new GenericEvent($this, array('title' => $node->getTitle(), 'id' => array('id' => $node->getId()), 'diff' => (array) $node)));
        return true;
    }