Description
| Q | A |
|---|---|
| Bug report? | yes |
| Feature request? | no |
| BC Break report? | no |
| Symfony version | 3.3.2 |
I'm migrating my app from Symfony 2.8 to Symfony 3.3.
NOTE: I'm not upgrading the 2.8 version, but installed a fresh project of Symfony 3.3 and moving all relvant files to it from the old 2.8 Symfony project.
From inside a controller of mine I have this:
public function indexAction()
{
$email = new Email();
$form = $this->createForm(GetStartedType::class, $email, [
'action' => $this->generateUrl('get_started_end'),
'method' => 'POST',
]);
return [
'form' => $form->createView(),
];
}
But I receive this exception:
Call to a member function get() on null
My controller extends Symfony\Bundle\FrameworkBundle\Controller\Controller:
/**
* {@inheritdoc}
*/
class DefaultController extends Controller
{
...
}
So I have access to the container.
Putting some dumps around in the Symfony's code, I see that the container is correctly set:
namespace Symfony\Component\DependencyInjection;
/**
* ContainerAware trait.
*
* @author Fabien Potencier <[email protected]>
*/
trait ContainerAwareTrait
{
/**
* @var ContainerInterface
*/
protected $container;
/**
* Sets the container.
*
* @param ContainerInterface|null $container A ContainerInterface instance or null
*/
public function setContainer(ContainerInterface $container = null)
{
dump('Here in the ContainerAwareTrait');
dump(null === $container);
$this->container = $container;
}
}
This dumps
Here in the ContainerAwareTrait
false
So the autowiring works well and sets the container.
But in the ControllerTrait I have this:
trait ControllerTrait
{
/**
* Generates a URL from the given parameters.
*
* @param string $route The name of the route
* @param mixed $parameters An array of parameters
* @param int $referenceType The type of reference (one of the constants in UrlGeneratorInterface)
*
* @return string The generated URL
*
* @see UrlGeneratorInterface
*/
protected function generateUrl($route, $parameters = array(), $referenceType = UrlGeneratorInterface::ABSOLUTE_PATH)
{
dump('Here in the ControllerTrait');
die(dump(null === $this->container));
return $this->container->get('router')->generate($route, $parameters, $referenceType);
}
...
this is the dump:
Here in the ControllerTrait
true
So here the container is null and this causes the error.
Anyone can help me solve this issue?
Why is the container null?
If may help, this is the services.yml configuration (the default that cames with Symfony):
# controllers are imported separately to make sure they're public
# and have a tag that allows actions to type-hint services
AppBundle\Controller\:
resource: '../../src/AppBundle/Controller'
public: true
tags: ['controller.service_arguments']
This issue is a copy and paste of a Stackoverflow question I opened.