createFormBuilder()在哪里？

Question

我正在使用symfony2和FOSUserBundle

我想在ProfileController中使用'createFormBuilder'

use Symfony\Bundle\FrameworkBundle\Controller\Controller;

use Symfony\Component\HttpFoundation\Response;
use Acme\UserBundle\Entity\AttrMutor;


class ProfileController extends ContainerAware
{
      $attrMutor = new AttrMutor();
      $form = $this->createFormBuilder($attrMutor);    

它显示如

FatalErrorException: Error: Call to undefined method Acme\UserBundle\Controller\ProfileController::createFormBuilder() 

我怎么解决这个问题？

我可以在其他Controller中使用$ this-> createFormBuilder

class DefaultController extends Controller
{
      $attrMutor = new AttrMutor();
      $form = $this->createFormBuilder($attrMutor);   //OK

我认为扩展ContainerAware和扩展Controller之间存在差异

Answer 1

该createFormBuilder方法在Symfony的基Controller类中.(http://api.symfony.com/2.3/index.html?q=createFormBuilder)

如果你只想有你的控制器扩展ContainerAware,而不是Controller,你仍然可以从服务容器表单生成器:

$builder = $this->container->get('form.factory')->createBuilder('form', $data, $options);