If you're following along with this example, you'll need to create a

route that points to this action to see it work.

..tip::

This page shows working with Doctrine within a controller. You may also

want to work with Doctrine elsewhere in your application. The

:method:`Symfony\\Bundle\\FrameworkBundle\\Controller\\Controller::getDoctrine`

method of the controller returns the ``doctrine`` service, you can work with

this in the same way elsewhere by injecting this into your own

services. See:doc:`/book/service_container` for more on creating

your own services.

Take a look at the previous example in more detail:

* **lines 9-12** In this section, you instantiate and work with the ``$product``