如何使用Sonata Notification Bundle？

我想在我的symfony（2.8）项目中添加Notifications系统，我认为Sonata Notification Bundle可以提供帮助，但事实证明我不知道如何使用它，我安装得很好，但我不知道如何使用它在我的项目中 . 我需要一些关于这个包的帮助，一些教程左右 . 还是有其他方式使用通知系统，请告诉我，提前谢谢 That the controller that i want to use notification bundle

namespace LocationBundle \ Controller;

使用Symfony \ Component \ HttpFoundation \ Request;使用Symfony \ Bundle \ FrameworkBundle \ Controller \ Controller;

使用LocationBundle \ Entity \ Agence;使用Symfony \ Component \ HttpFoundation \ JsonResponse;

/ ** * Agence控制器 . * * /类AgenceController扩展Controller {/ ** *列出所有Agence实体 . * * / public function indexAction（）{
$ em = $ this-> getDoctrine（） - > getManager（）;

$agences = $em->getRepository('LocationBundle:Agence')->findAll();

    return $this->render('agence/index.html.twig', array(
        'agences' => $agences,            
    ));
}

/**
 * Creates a new Agence entity.
 *
 */
public function newAction(Request $request)
{
    $agence = new Agence();
    $form = $this->createForm('LocationBundle\Form\AgenceType', $agence);
    $form->handleRequest($request);

    if ($form->isSubmitted() && $form->isValid()) {
        $em = $this->getDoctrine()->getManager();
        $em->persist($agence);
        $em->flush();

        return $this->redirectToRoute('agence_show', array('id' => $agence->getId()));
    }

    return $this->render('agence/new.html.twig', array(
        'agence' => $agence,
        'form' => $form->createView(),
    ));
}

/**
 * Finds and displays a Agence entity.
 *
 */
public function showAction(Agence $agence)
{
    $deleteForm = $this->createDeleteForm($agence);

    return $this->render('agence/show.html.twig', array(
        'agence' => $agence,
        'delete_form' => $deleteForm->createView(),
    ));
}

/**
 * Displays a form to edit an existing Agence entity.
 *
 */
public function editAction(Request $request, Agence $agence)
{
    $deleteForm = $this->createDeleteForm($agence);
    $editForm = $this->createForm('LocationBundle\Form\AgenceType', $agence);
    $editForm->handleRequest($request);

    if ($editForm->isSubmitted() && $editForm->isValid()) {
        $em = $this->getDoctrine()->getManager();
        $em->persist($agence);
        $em->flush();

        return $this->redirectToRoute('agence_edit', array('id' => $agence->getId()));
    }

    return $this->render('agence/edit.html.twig', array(
        'agence' => $agence,
        'edit_form' => $editForm->createView(),
        'delete_form' => $deleteForm->createView(),
    ));
}

/**
 * Deletes a Agence entity.
 *
 */
public function deleteAction(Request $request, Agence $agence)
{
    $form = $this->createDeleteForm($agence);
    $form->handleRequest($request);

    if ($form->isSubmitted() && $form->isValid()) {
        $em = $this->getDoctrine()->getManager();
        $em->remove($agence);
        $em->flush();
    }

    return $this->redirectToRoute('agence_index');
}

/**
 * Creates a form to delete a Agence entity.
 *
 * @param Agence $agence The Agence entity
 *
 * @return \Symfony\Component\Form\Form The form
 */
private function createDeleteForm(Agence $agence)
{
    return $this->createFormBuilder()
        ->setAction($this->generateUrl('agence_delete', array('id' => $agence->getId())))
        ->setMethod('DELETE')
        ->getForm()
    ;
}