Can a route ignore inherited prefix for its own path helper?

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1

Hi,

I’d like to ignore the inherited prefix from Phoenix.Router.resources and Phoenix.Router.scope when I define a route for its own generated path/url helpers (because they are injected by a macro). Is it possible? How could I achieve this?

For example:

scope "/foo", as: :foo do
  resources "/bar", MyAppWeb.BarController, only: ~W[new create]a, as: :name
end

Will generate the helper foo_name_path but I’d like to get name_path instead, by ignoring/getting rid of the inherited foo part (to be clear: in my real case, I can’t change the as, scope is defined by the user but resources is injected by a macro). Maybe my approach is inadequate? Have I miss some point in Phoenix.Router’s documentation?

Many thanks if you have a solution or a lead.

2

Hello!

The scope is all about grouping routes with a common prefix and plugs. So by adding as: :foo you’re saying you want all routes within the block to be prefixed by foo_.

You can, however, duplicate the scope block and not add the as: :foo.

scope "/foo", as: :foo do
  # other routes that requires the foo_ prefix
  resources "/other", MyAppWeb.OtherController
end

scope "/foo" do
  # keep /foo in the URL but don't prefix this route
  resources "/bar", MyAppWeb.BarController, only: ~W[new create]a, as: :name
end

Edit:
Oops, looks like I missed an important point where the user defines the scope but you want to inject routes using a macro.
After going through the docs again looks like you can’t do exactly what you want without the user duplicating the scope.

3

Thanks for your answer.

After going through the docs again looks like you can’t do exactly what you want without the user duplicating the scope.

Yeah, that’s what I wished to avoid.

4

Hi,

a follow up after reading this other topic How to shorten a too long phoenix router path helper name?

Enclosing the injected routes in a “dummy” scope as: false, alias: false do … end block seems to do the trick since as: false resets route’s prefix name.

From my initial example:

scope "/foo", as: :foo do
  # <injected by a macro>
  scope as: false, alias: false do
    resources "/bar", MyAppWeb.BarController, only: ~W[new create]a, as: :name
  end
  # </injected by a macro>
end

The generated route will have /foo/bar as HTTP path (path is still inherited from outer scopes) and the _path function will be named name_path as wished.

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