Dropping second model name in nested resource route

Question

I'm using slugs for IDs, so wanting URLs like /songs/radiohead/karma-police instead of /artists/radiohead/songs/karma-police.

Slugs can be achieved with:

def to_param
  slug
end

But how is there any way to drop the model name - "songs" - from the standard RESTful URL?

Answer 1

You can override the path segment by passing the :path option to your resources call.

resources :songs, path: "songs/:artist_id"

this will generate these routes

      songs GET    /songs/:artist_id(.:format)          {:action=>"index", :controller=>"songs"}
            POST   /songs/:artist_id(.:format)          {:action=>"create", :controller=>"songs"}
   new_song GET    /songs/:artist_id/new(.:format)      {:action=>"new", :controller=>"songs"}
  edit_song GET    /songs/:artist_id/:id/edit(.:format) {:action=>"edit", :controller=>"songs"}
       song GET    /songs/:artist_id/:id(.:format)      {:action=>"show", :controller=>"songs"}
            PUT    /songs/:artist_id/:id(.:format)      {:action=>"update", :controller=>"songs"}
            DELETE /songs/:artist_id/:id(.:format)      {:action=>"destroy", :controller=>"songs"}

Answer 2

Put this in your routes.rb and it should work.

match 'artists/:artist_id/:id' => 'songs#show', :as => 'artist_song'

Make sure if you do the :as that the other routes don't take precedence over this one.

Then check out this Routing match reference