Rails: Can a Nested STI Inherit Custom Methods

Question

I have a resource that inherits its table and controller from its parent. Its parent also has custom routing that I want to pass to it, though I'm not sure how (or if it's even possible). The routes currently look like this:

resources :publications do
  resources :editions, :controller => :publications
  collection do
    get :autocomplete, :claim, :current_users_publications, :lightbox, :lookup
    post :review
  end
  member do
    get :audit, :reassign_prompt
    post :approve, :audit_vote
    put :reassign
  end
end

With the current setup, the editions model does not have access to custom methods like "audit" or "autocomplete." Is it possible to do something like ":routes => :publications"?

Answer 1

Check out Routing Concerns

# Define the concern
concern :somethingable do
  collection do
    get :autocomplete, :claim, :current_users_publications, :lightbox, :lookup
    post :review
  end
  member do
    get :audit, :reassign_prompt
    post :approve, :audit_vote
    put :reassign
  end
end

# And now your routing
resources :publications, concerns: :somethingable do
  resources :editions, controller: :publications, concerns: :somethingable
end

I'm sure you can think of a better term than :somethingable to describe the common behavior

Update

Because the above is for rails master branch, there are a couple alternatives you can utilize

1. There is a gem that abstracts this behavior for use in Rails 3.2+

2. Instead of using concern, just create a method in your routing file.

   def somethingable
     collection do
       get :autocomplete, :claim, :current_users_publications, :lightbox, :lookup
       post :review
     end
     member do
       get :audit, :reassign_prompt
       post :approve, :audit_vote
       put :reassign
     end
   end
   

   then your routes might look like

   resources :publications do
     somethingable
   
     resources :editions, controller: :publications do
       somethingable
     end
   end