symfony – 在Sonata管理实体的show模板中添加自定义表单

public function approveOrderAction($id = null)
{
    $request = $this->getRequest();

    $id = $request->get($this->admin->getIdParameter());
    $order = $this->admin->getObject($id);

    $approveForm = $this->createFormBuilder($order)
        ->add('reqSecondApprover','checkbox',array('label' => 'Require second Approval','required' => false))
        ->add('secondApprover','choice',array('choices' => Crud::getWhatever(array('Developer')),'required' => false))
        ->getForm();

    $approveForm->handleRequest($request);

    if ($approveForm->isSubmitted() && $approveForm->isValid()) {
        $secondApproval = $request->request->get('form');
        $approval = $approveForm->getData();

        if (isset($secondApproval['reqSecondApprover'])) {
            $order->setStatus(PmodOrder::STATUS_PARTLY_APPROVED);
        } else {
            $order->setStatus(PmodOrder::STATUS_APPROVED);
            $order->setSecondApprover(null);
        }   

        $em->persist($approval);
        $em->flush();

        return new RedirectResponse($this->admin->generateUrl('show'));
    }

    return $this->render('AppBundle:PmodOrder:order_approve.html.twig',array(
        'order' => $order,'form' => $approveForm->createView(),));
}

在我的orderAdmin中,我有configShowFields方法;

protected function configureShowFields(ShowMapper $showMapper)
{
    $order = $this->getSubject();

    $showMapper
        ->with('General')
            ->add('createdBy',null,array('label' => 'Requested By'))
            ->add('createdAt',array('label' => 'Date Requested'))
        ->with('Order Details')
            ->add('orderRows',NULL,array('template' => 'AppBundle:PmodOrderRow:orderrow_overview.html.twig'))
        ->end()
        ->with('Actions')
            ->add('actions',array('template' => 'AppBundle:PmodOrderAction:order_actions.html.twig','route' => 'approve'))
        ->end()
    ;
}

order_actions模板如下所示,将根据订单状态和登录人员显示相关功能,从而如何处理这么多不同的路由？

<td>
    {% if app.user.id == object.firstApprover and object.status == 1%}
        {{ render(controller('AppBundle:PmodOrderCRUD:approveOrder',{ 'id': object.id })) }}
    {% elseif app.user.id == object.secondApprover and object.status == 2 %}
        <a href="{{ path('order_second_approve',{ 'id': object.id })}}" class="btn btn-primary"><i class="fa fa-check"></i> Approve</a>
        <a href="{{ path('order_disapprove',{ 'id': object.id })}}" class="btn btn-default"><i class="fa fa-times"></i> Disapprove</a>
    {% elseif app.user == object.createdBy and object.status == 3 %}
        <a href="{{ path('order_place',{ 'id': object.id })}}" class="btn btn-primary">Place Order</a>
        <a href="{{ path('order_place',{ 'id': object.id })}}" class="btn btn-default">Cancel Order</a>
    {% else %}
        -
    {% endif %}
</td>

尝试这个时我得到一个错误;

An exception has been thrown during the rendering of a template
(“There is no _sonata_admin defined for the controller
ApBundleControllerPmodOrderCRUDController and the
current route “”) in
AppBundle:PmodOrderAction:order_actions.html.twig at line 3.

我从documentation了解到我需要使用这个configureRoutes方法;

protected function configureRoutes(RouteCollection $collection)
{
    $collection->add('clone',$this->getRouterIdParameter().'/clone');
}

但我不能让它工作,我不知道如何渲染表单而不是简单的链接按钮.

有人可以帮我解决我的问题吗？