AttachmentController

Attachment.php

    public function createAction($ownerObj)
    {
        $attachment = new Attachment();
        $ownerObj->addAttachment($attachment);
        $request = $this->getRequest();
        $form = $this->createForm(new AttachmentType(), $attachment);
        if ($request->getMethod() == 'POST') {
                if ($form->isValid()) {
                    $em = $this->getDoctrine()
                               ->getEntityManager();
                    $em->persist($attachment);
                    $em->persist($ownerObj);
                    $em->flush();

                    return $this->redirect($this->generateUrl('StanoSasDocumentBundle_gara_show', array( $ownerObj->getId() )));
                }
        }
        return $this->render('StanoSasDocumentBundle:Attachment:form', array(
        'ownerObj'   => $ownerObj,    
        'form'       => $form->createView()
        ));
    }