Question

为什么在控制器内调用控制器时会出现以下错误?

Fatal error: Call to a member function get() on a non-object in /home/web/project/symfony2/vendor/symfony/src/Symfony/Bundle/FrameworkBundle/Controller/Controller.php on line 149

在控制器中,我调用了一个包含 current 的类 :

class DemoController extends Controller
{
    public function indexAction()
    {
        $object = new AcmeDemoBundleServiceObject();
        $object->method();
    }
    // ...
}

这门课是这样的:

# Acme/DemoBundle/Service/Object.php
class Object extends Controller
{
    public function method()
    {
        $em = $this->getDoctrine()->getEntityManager(); // the problem
        // ...
    }
}

当我使用 < code>$ this 调用服务、学说或控制器内类似的东西时, 错误就发生了。否则, 它就会起作用。

比如说,我该如何使用这个班级的学说呢?

Answer 1

尝试

$object->setContainer($this->container);

在调用 method () 之前

Edit: Basically it s a bad idea to have a service extend Controller but if you really need to do this, try to add this

your.service:
  class: YourClass
  arguments: [...]
  calls:
    - [ setContainer, [@service_container] ]

在您的服务配置文件中( 可能 < code> service.yml )

友情链接