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Symfony2 – Franz Jordán 2011
}
And just like when creating a controller for a route, the order of the arguments
to fancyActiondoesn't matter. Symfony2 matches the index key names (e.g. name) with the
method argument names (e.g. $name). If you change the order of the arguments, Symfony2 will
still pass the correct value to each variable.
Like other base Controller methods, the forward method is just a shortcut for core
Symfony2 functionality. A forward can be accomplished directly via the http_kernelservice. A
forward returns a Response object:
$httpKernel = $this->container->get('http_kernel');
$response = $httpKernel->forward('AcmeHelloBundle:Hello:fancy', array(
'name' => $name,
'color' => 'green',
));
Rendering Templates
Though not a requirement, most controllers will ultimately render a template that's responsible
for generating the HTML (or other format) for the controller. The renderView() method
renders a template and returns its content. The content from the template can be used to create
a Responseobject:
$content = $this->renderView('AcmeHelloBundle:Hello:index.html.twig', array('name' =>
$name));
return new Response($content);
This can even be done in just one step with the render() method, which returns
a Response object containing the content from the template:
return $this->render('AcmeHelloBundle:Hello:index.html.twig', array('name' => $name));
In both cases, the Resources/views/Hello/index.html.twig template inside
the AcmeHelloBundlewill be rendered.
The Symfony templating engine is explained in great detail in the Templating chapter.
The renderView method is a shortcut to direct use of the templating service.
Thetemplating service can also be used directly:
$templating = $this->get('templating');
$content = $templating->render('AcmeHelloBundle:Hello:index.html.twig', array('name' =>
$name));
Accessing other Services
When extending the base controller class, you can access any Symfony2 service via
the get()method. Here are several common services you might need:
$request = $this->getRequest();
$response = $this->get('response');
$templating = $this->get('templating');
$router = $this->get('router');
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