private function populate()
{
$article = new Article();
$article->setTitle('title in en');
$article->setContent('content in en');
$comment1 = new Comment();
$comment1->setSubject('subject1 in en');
$comment1->setMessage('message1 in en');
$comment2 = new Comment();
$comment2->setSubject('subject2 in en');
$comment2->setMessage('message2 in en');
$article->addComment($comment1);
$article->addComment($comment2);
$this->em->persist($article);
$this->em->persist($comment1);
$this->em->persist($comment2);
$this->em->flush();
$this->articleId = $article->getId();
$this->em->clear();
}
