Arggg, So Many Dependencies!

Is it normal that I have to create so many dependencies by hand? No. It is common to use a Dependency Injection component or a Service Container with such capabilities. Again, Symfony comes to the rescue, however, you can also check PHP-DI 4.

Let's see the resulting code in Listing 14 after applying Symfony Service Container component to our application:

class IdeaController extends ContainerAwareController
{
    public function rateAction()
    {
        $ideaId = $this->request->getParam('id');
        $rating = $this->request->getParam('rating');

        $useCase = $this->get('rate_idea_use_case');
        $response = $useCase->execute(
            new RateIdeaRequest($ideaId, $rating)
        );

        $this->redirect('/idea/' . $response->idea->getId());
    }
}

The controller has been modified to have access to the container...