Symfony: how to pass a parameter from Route to Controller with no path

Question

I have a route

 detail: path: /{code} defaults: { _controller: controller.main:detailAction }

I also have a controller for this route

 public function detailAction(Request $request, string $code, int $size, array $params): Response { }

My question is: how can I say to controller which parameters he should take as int $size and array $params ? I have found in symfony docs that I may specifically mention params in defaults section with default values like this

 detail: path: /{code} defaults: { _controller: controller.main:detailAction } size: 1 params: "Hello world!"

But that is not what I want since I shouldn't have a default value for this params but it ought to be taken directly from request. How do I do this without making my route like /{code}/{size} ? And even in this case what do I do with an array?

Are you saying sometimes there's just a code, sometimes a code + size, and sometimes a code + size + params? — Jared Farrish
– Jared Farrish, Commented Jun 23, 2017 at 12:16
no, as my detailAction() statement requires all arguments, it always must be all parameters passed. But only $code is part of the path, others I just want to have passed — hvertous
– hvertous, Commented Jun 23, 2017 at 12:21
I would make the arguments optional: detailAction(..., int $size = null, array $params = null). Then you can test if they're set, but I don't believe (?) Symfony's router will see those as required arguments. — Jared Farrish
– Jared Farrish, Commented Jun 23, 2017 at 12:45

Arcv · Accepted Answer · 2017-06-23 12:03:42Z

3

You can generate a url like this by passing parameters in your controller:

 $url = $this->generateUrl("detail", array("code" => $code, ...)); return $this->redirect($url);

And routing:

 detail: path: / defaults: { _controller: controller.main:detailAction }

edited Jun 23, 2017 at 12:03

answered Jun 23, 2017 at 12:01

Arcv

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2 Comments

tftd Over a year ago

In symfony >= 3.3 you can directly do return $this->redirectToRoute('detail', array('code' => $code....));

hvertous Over a year ago

is it the only way? Can't I state in my routing that some parameters should be clearly passed (size -> $size etc)?

svgrafov · Accepted Answer · 2017-06-26 08:40:27Z

If you want to specify parameters like this

someurl.io/action/?filter=allopenissues&orderby=created

You should typehint Request object in your action and access its query parameters bag. If your controller extends Symfony Controllers, Request will be automatically passed.

use Symfony\Component\HttpFoundation\Request; .... public function updateAction(Request $request) { $request->query->get('myParam'); // get myParam from query string }

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