Use a service when creating a twig filter (outside a controller)

Question

I have my class MyTwigExtension extends \Twig_Extension, where i have created my filters for twig. I want to use a service in the implementation of a new filter. Something like this:

$canView = $this->get('security_service')
                ->hasClassPermission(
                        'MyBundle:MyEntity',
                        $this->get('security.context')->getToken()->getUser(), 
                        array(MaskBuilder::MASK_VIEW)
                 );

Into a controller this work fine, but outside it...

score 0 · Answer 1 · edited May 23 '17 at 12:09

Check this answer I gave on dependency injection outside a controller here.

Then check this link to see how to register your TwigExtension as a service.

Just a quick edit, sometimes, when you do TwigExtension as a service, you can't inject directly some service because it cause a ScopeWideningException. If you get this exception, then you can add scope = request to you service definition. If it still throws an exception, inject the whole dependency container and do $this->container->get('service.id.here') to retrieve the services you need.

Hope it helps.

Regards,
Matt

Use a service when creating a twig filter (outside a controller)

1 Answers1