Rails 4 - explicit model name for resource id route

Question

When defining the following route in routes.rb:

resources :streams

Rails generates the following urls:

        streams    GET    /streams(.:format)
                   POST   /streams(.:format)
        new_stream GET    /streams/new(.:format)
       edit_stream GET    /streams/:id/edit(.:format)
            stream GET    /streams/:id(.:format)
                   PATCH  /streams/:id(.:format)
                   PUT    /streams/:id(.:format)
                   DELETE /streams/:id(.:format)

I would like to have an explicit resource id, i.e. :stream_id instead of :id.

edit:

For simple resources the solution is like @user2262149 and @vimsha mentioned:

resources :streams, :param => :stream_id

The problem is with nested resources. If I do this:

resources :streams do
  resource :comment, :param => :comment_id
end

I will get this route (which is ok):

stream_comments   GET  streams/:stream_id/comments(.:format)

but on the other hand for the parent resource (again, :id instead of :stream_id):

streams   GET  streams/:id(.:format)

So....
If I try to solve it adding :param => :stream_id to the parent resource:

resources :streams, :param => :stream_id do
  resource :comment, :param => :comment_id
end

Then for the parent resource the route is ok:

stream GET    /api/streams/:stream_id(.:format)

but I get a real mess for the child resource:

stream_comments GET    /api/streams/:stream_stream_id/comments(.:format)

Do you have an idea how to solve this problem??

Answer 1

I'm not sure if this is what you are looking for but, in your routes.rb,

If you use

resources :streams, param: :stream_id

Rails will generate the following urls:

          streams GET      /streams(.:format)                       streams#index
                  POST     /streams(.:format)                       streams#create
       new_stream GET      /streams/new(.:format)                   streams#new
      edit_stream GET      /streams/:stream_id/edit(.:format)       streams#edit
           stream GET      /streams/:stream_id(.:format)            streams#show
                  PATCH    /streams/:stream_id(.:format)            streams#update
                  PUT      /streams/:stream_id(.:format)            streams#update
                  DELETE   /streams/:stream_id(.:format)            streams#destroy

Hope this helps

UPDATE:

I'm not sure if this is best practices or not or if there is a better way but what if you try:

resources :streams, param: :stream_id

resources :streams, only: [] do
  resource :comment, param: :comment_id
end

Rails would generate the following urls:

            streams GET      /streams(.:format)                         streams#index
                    POST     /streams(.:format)                         streams#create
         new_stream GET      /streams/new(.:format)                     streams#new
        edit_stream GET      /streams/:stream_id/edit(.:format)         streams#edit
             stream GET      /streams/:stream_id(.:format)              streams#show
                    PATCH    /streams/:stream_id(.:format)              streams#update
                    PUT      /streams/:stream_id(.:format)              streams#update
                    DELETE   /streams/:stream_id(.:format)              streams#destroy
     stream_comment POST     /streams/:stream_id/comment(.:format)      comments#create
 new_stream_comment GET      /streams/:stream_id/comment/new(.:format)  comments#new
edit_stream_comment GET      /streams/:stream_id/comment/edit(.:format) comments#edit
                    GET      /streams/:stream_id/comment(.:format)      comments#show
                    PATCH    /streams/:stream_id/comment(.:format)      comments#update
                    PUT      /streams/:stream_id/comment(.:format)      comments#update
                    DELETE   /streams/:stream_id/comment(.:format)      comments#destroy

Hope this helps

Answer 2

Try

resources :streams, :param => :stream_id

UPDATE:

What happens when you do this?

resources :streams, :param => :stream_id do
  resource :comment, :param => :comment_id
end

Answer 3

Similar to the post above but without the []: I used:

resources :tickets, param: :ticket_id

resources :tickets do
  resources :entries, param: :entry_id
end