Ojs\CoreBundle\Command\DeleteJournalCommand::removeArticles PHP Метод

    private function removeArticles()
    {
        $journalArticles = $this->em->getRepository('OjsJournalBundle:Article')->findBy(['journal' => $this->journal]);
        $this->io->progressStart(count($journalArticles));
        foreach ($journalArticles as $article) {
            $this->io->progressAdvance();
            $this->em->remove($article);
        }
        $this->em->flush();
    }