..code-block::xml

..code-block::php

Referring to the Service

To refer to a controller that's defined as a service, use the single colon (:)

notation. For example, to forward to the ``indexAction()`` method of the service

defined above with the id ``app.hello_controller``::

If the service id is the fully-qualified class name (FQCN) of your controller,

you can keep using the usual notation. For example, to forward to the

``indexAction()`` method of the above ``AppBundle\Controller\HelloController``

service::

..note::

Otherwise, use the single colon (``:``) notation. For example, to forward to the

``indexAction()`` method of a service with the id ``app.hello_controller``::

You cannot drop the ``Action`` part of the method name when using this

syntax.

You can also route to the service by using the same notation when defining

the route ``_controller`` value:

..note::

You cannot drop the ``Action`` part of the method name when using the

single colon notation.

..tip::

You can also use annotations to configure routing using a controller

defined as a service. Make sure you specify the service ID in the

``@Route`` annotation. See the `FrameworkExtraBundle documentation`_ for

details.

``@Route`` annotation if your service ID is not your controller

fully-qualified class name (FQCN). See the

`FrameworkExtraBundle documentation`_ for details.

..tip::

If your controller implements the ``__invoke()`` method, you can simply

refer to the service id (``app.hello_controller``).

refer to the service id (``AppBundle\Controller\HelloController`` or

``app.hello_controller`` for example).

Alternatives to base Controller Methods

..code-block::xml

Rather than fetching the ``templating`` service from the container, you can

inject *only* the exact service(s) that you need directly into the controller.