Set requirements for get request parameters in symfony's controller - symfony

Question

I have a controller which handles a GET request. I need to set requirement parameters for GET request, e.g.: 'http://localhost/site/main?id=10&sort=asc
My controller class
class IndexController extends Controller {
` /**
* #Route
* (
* "/site/main",
* name="main"
* )
*
* #Method("GET")
*/
public function mainAction(Request $request)
{
return new Response('', 200);
}
}
How could I do that?
UPD: I need to set requirement for URL parameters like
id: "\d+",
sort: "\w+"
Etc.
The same as symfony allows to do with POST request.

Answer 1

You can specify the requirements in the "#Route" annotation like this:
class IndexController extends Controller {
` /**
* #Route
* (
* "/site/main",
* name="main",
* requirements={
* "id": "\d+",
* "sort": "\w+"
* })
* )
*
* #Method("GET")
*/
public function mainAction(Request $request)
{
return new Response('', 200);
}
}

Answer 2

#Method is what you need http://symfony.com/doc/current/bundles/SensioFrameworkExtraBundle/annotations/routing.html#route-method
If you try to use this route with POST, you will have 404

Answer 3

I couldn't understand your question well.
However, if what you need is to set up a filter mechanism for the GET method parameters as it is already available for the URL using route requirements, I think there is no ready to use tools for this in the Route component, as commented #Yoshi.
I had to do this kind of work myself and used this. I hope it helps you too
public function indexAction(Request $request)
{
// Parameter names used in the current request
$current_request_params=array_keys($request->query->all());
// $ALLOWED_INDEX_PARAMS should be declared as Class static property array and hold names of the query parameters you want to allow for this method/action
$unallowed_request_params=array_diff($current_request_params,PersonController::$ALLOWED_INDEX_PARAMS);
if (!empty($unallowed_request_params))
{
$result=array("error"=>sprintf("Unknown parameters: %s. PLease check the API documentation for more details.",implode($unallowed_request_params,", ")));
$jsonRsp=$this->get("serializer")->serialize($result,"json");
return new Response($jsonRsp,Response::HTTP_BAD_REQUEST,array("Content-Type"=>"application/json"));
}
// We are sure all parameters are correct, process the query job ..
}