没有命名参数的Symfony通配符主机路由

Question

I want to host 2 different domains inside a single Symfony 4 application, so I'm using @Route 's host parameter to declare the domain each page belongs to:

/**
 * @Route("/foo", name="foo", host="example.com")
 */

This works fine; however, for my local dev server, I will typically use a domain like example.dev instead. So the route needs to match multiple extensions. I tried using a named placeholder for this purpose:

/**
 * @Route("/foo", name="foo", host="example.{ext}")
 */

This works fine for routing, but not for URL generation. For example, if a Twig template attempts to use {{ path('foo') }} , I now get the following error:

Some mandatory parameters are missing ("ext") to generate a URL for route "foo".

Is there a way to add a wildcard for the host, while still allowing route generation without passing a parameter?

I know the question sounds odd, as routing must be bi-directional, but how is this typically handled when one needs to have a dev environment with different domains?

Is there maybe a way to provide a global, default value for the ext parameter?

Answer 1

Found it:

/**
 * @Route("/foo", name="foo", host="example.{ext}", defaults={"ext": "%ext%"})
 */

And configure the default value in config/services.yaml :

parameters:
    ext: 'com'

Or better yet, use a constant:

parameters:
    ext: '%env(DOMAIN_EXT)%'

And define it in your .env and/or .env.local as needed:

DOMAIN_EXT=com

---

Alternative

It may be even better to allow the whole host to be configurable. In this case, it looks like:

/**
 * @Route("/foo", name="foo", host="%domain.name%")
 */

And as above, configure the domain name in config/services.yaml , with or without a constant:

parameters:
    domain.name: '%env(DOMAIN_NAME)%'