Here's a potential re-word. I originally thought we could make it a bit shorter (this is shorter, but not by much). Feel free to use this, or adapt it even further.

>
This page shows working with Doctrine from within a controller by using the
:method:`Symfony\\Bundle\\FrameworkBundle\\Controller\\Controller::getDoctrine`
method of the controller. This method is just a shortcut to get the ``doctrine`` service,
which means you can work with Doctrine anywhere else by injecting that service
(or the ``doctrine.orm.entity_manager`` service) where you need it. See :doc:`/book/service_container` for more on creating our own services.