How to return the correct Location to route with Resources in the singular?

Question

When using the controller name in the singular, the path is prefixed with _index at the end of the route name (ex. dispute_conference_index). Inside the controller in the method create the parameter location in render receives the registration URL.

Unfortunately the name passed to location is dispute_conference_url instead of dispute_conference_index.

See below the route configuration I’m using:

resources :disputes, shallow: true do
  scope module: :dispute do
    resources :conference, except: :index
  end
end

See the details of Routes:

                 Prefix Verb    URI Pattern                                Controller#Action
conferences              GET    /conferences(.:format)                     conferences#index {:format=>:json}
dispute_conference_index POST   /disputes/:dispute_id/conference(.:format) dispute/conference#create {:format=>:json}
conference               GET    /conference/:id(.:format)                  dispute/conference#show {:format=>:json}
                         PATCH  /conference/:id(.:format)                  dispute/conference#update {:format=>:json}
                         PUT    /conference/:id(.:format)                  dispute/conference#update {:format=>:json}
                         DELETE /conference/:id(.:format)                  dispute/conference#destroy {:format=>:json}
                         PUT    /conference/:id/start(.:format)            dispute/conference#start {:format=>:json}
                         PUT    /conference/:id/cancel(.:format)           dispute/conference#cancel {:format=>:json}
                         PUT    /conference/:id/finish(.:format)           dispute/conference#finish {:format=>:json}

What is the correct way to correct this question, passing the location correct?

---

Correcting the question: The reason for the error is because of the parameter shallow: true, it alters the path routes requiring manual intervention or through a function (url_path).

When trying to rotate the method create an error will be obtained as it will not be possible to find the location.

Answer 1

After several attempts and errors the solution seemed. First it should be moved shallow: true for the call of resources and finally the attribute should be added shallow_prefix: :dispute. See below how it looks:

resources :disputes do
  scope module: :dispute, except: :index do
    resources :conference, shallow: true, shallow_prefix: :dispute
  end
end

Done that routes shall be assembled as desired:

Prefix Verb         URI Pattern Controller#Action
conferences              GET    /conferences(.:format)                     conferences#index {:format=>:json}
dispute_conference_index POST   /disputes/:dispute_id/conference(.:format) dispute/conference#create {:format=>:json}
dispute_conference       GET    /conference/:id(.:format)                  dispute/conference#show {:format=>:json}
                         PATCH  /conference/:id(.:format)                  dispute/conference#update {:format=>:json}
                         PUT    /conference/:id(.:format)                  dispute/conference#update {:format=>:json}
                         DELETE /conference/:id(.:format)                  dispute/conference#destroy {:format=>:json}
                         PUT    /conference/:id/start(.:format)            dispute/conference#start {:format=>:json}
                         PUT    /conference/:id/cancel(.:format)           dispute/conference#cancel {:format=>:json}
                         PUT    /conference/:id/finish(.:format)           dispute/conference#finish {:format=>:json}

Note that my controller is mounted on the module dispute this is also related to the problem.