Ojs\AdminBundle\Controller\AdminPublisherDesignController::createAction PHP Method

    public function createAction(Request $request)
    {
        $entity = new PublisherDesign();
        $form = $this->createCreateForm($entity);
        $form->handleRequest($request);
        if ($form->isValid()) {
            $em = $this->getDoctrine()->getManager();
            $entity->setContent($this->prepareDesignContent($entity->getEditableContent()));
            $em->persist($entity);
            $em->flush();
            $this->successFlashBag('successful.create');
            return $this->redirectToRoute('ojs_admin_publisher_design_show', ['id' => $entity->getId()]);
        }
        return $this->render('OjsAdminBundle:AdminPublisherDesign:new.html.twig', array('entity' => $entity, 'form' => $form->createView()));
    }