How to implement a baseclass for Symfony2 controllers

Question

There are some articles around which touch this topic, but none of them seemed to be a practical usable solution for me. My goal is to put some basic methods (those I need in each controller anyway) into a basecontroller, e.g.

   $this->getEntityManager();
   $this->getRequest();
   $this->getRepository($entityName);

How can this be done?

AFAIK we have to inject the services into the basecontroller, but how do I tell classes to use a service for their superclass? There is some decent article about Controllers and Dependency Injection [1], but finally I got stuck with that approach too, see my comment here: [2]

[1] http://miller.limethinking.co.uk/2011/04/15/symfony2-controller-as-service/

[2] http://miller.limethinking.co.uk/2011/04/15/symfony2-controller-as-service/#comment-579

Koc · Accepted Answer · 2011-04-27 08:27:10Z

3

pseudocode

MyBaseController impliments Symfony\Component\Di\ContainerAwareInterface
  setContainer($container)
    $this->container = $container

  getEntityManager
    return $this->container->get('doctrine.orm.entity_manager')

answered Apr 27, 2011 at 8:27

Koc

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3 Comments

stoefln Over a year ago

Thanks for the hint. When I make use of the basecontroller i get following error message: "Fatal error: Declaration of ...Bundle\Controller\BaseController::setContainer() must be compatible with that of Symfony\Component\DependencyInjection\ContainerAwareInterface::setContainer() in /Library/WebServer/Documents/...Bundle/Controller/BaseController.php on line 9". Setter looks like this:

function setContainer(\Symfony\Component\DependencyInjection\ContainerInterface $container){ 		$this->container = $container; }

Koc Over a year ago

$container can be null, so should be (...\ContainerInterface$container = null)

renoirb Over a year ago

BAD IDEA. It's like loading everything and saying it's lean. I suggest you simply do an abstract class MyBaseController with protected methods. But do not inject all stuff like this. See "problematic"'s post series "Controller in a diet" it explains A LOT.

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