Strange problem, I have controller which uses \Symfony\Component\DependencyInjection\ContainerAwareTrait
class MainController
{
use \Symfony\Component\DependencyInjection\ContainerAwareTrait;
/**
* @Route("/", name="_index")
* @Template()
*/
public function indexAction()
{
var_dump($this->container);
return array();
}
}
but result is NULL.
Tried on:
My searches have not helped me. I think the solution is easy.
Any ideas how to trace this error?
UPD: When i extend from Controller, container is available and everything is working properly. But according to symfony Controller reference extending is optional, i can use traits instead.
I'll venture a guess based on a quick glance into the Symfony source code: You still need to declare that you adhere to the ContainerAwareInterface
Interface.
This is what the code looks like whenever Symfony is setting a container on a controller.
if ($controller instanceof ContainerAwareInterface) {
$controller->setContainer($this->container);
}
So then I suppose you need to do something like this:
use Symfony\Component\DependencyInjection\ContainerAwareInterface;
use Symfony\Component\DependencyInjection\ContainerAwareTrait;
// ...
class MainController implements ContainerAwareInterface
{
use ContainerAwareTrait;
/**
* @Route("/", name="_index")
* @Template()
*/
public function indexAction()
{
var_dump($this->container);
return array();
}
}
As an aside, this is arguably a pretty good case for Duck Typing, particularly if they had named the method something a bit more specific or if it were cheaper to inspect the parameter types to methods at runtime
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