Question

I created new bundle (AcmeNotificationBundle) and I want to use it like a service like this:

$notification = $this->get( 'notification' );
$mess = $notification->getNotification( 'Some notification message' )->createView();

But in my bundle I need a twig service to render notification templates. I understand that I need something like this in Resources\config\services.yml file:

services:
twig:
    class: Path\To\Twig\Class

But I don’t know what is the right path to twig class. Аnyone encountered this problem? What is the right way to add twig service to bundle?

Answer 1

Templating service is already avaiable in your bundle. You can retrieve it from the container:

$container->get('templating');

You should be able to access twig service in a similar way:

$container->get('twig');

Rest of my answer uses templating service but you can easily replace it with twig if you really need to.

I think what you need is passing templating service to your notification service.

services:
    notification:
        class:     Acme\NotificationBundle\Notification
        arguments: [@templating]

Your Notification class would take the templating as a constructor parameter:

use Symfony\Bundle\TwigBundle\TwigEngine;

class Notification
{
    /**
     * @var Symfony\Bundle\TwigBundle\TwigEngine $templating
     */
    private $templating = null;

    /**
     * @param Symfony\Bundle\TwigBundle\TwigEngine $templating
     *
     * @return null
     */
    public function __construct(TwigEngine $templating)
    {
        $this->templating = $templating;
    }
}

Instead of $notification->getNotification('Some notification message')->createView() I’d probably do $notification->createNotificationView('Some notification message'). I’m assuming notification message is an entity and there’s no need to pass templating to the entity.

Related documentation: Referencing (Injecting) Services