Question

I’m trying to generate a URL for a model which is namespaced from a controller which is not. For example:

module SomeStuff
  class Widget < ActiveRecord::Base; end
end

class WidgetsController < ApplicationController
  def create
    w = Widget.create(params)
    location = url_for w
    render :json => w, :location => location
  end
end

The problem is Rails wants a “some_stuff_widget_path” to exist and it doesn’t because the controller is not namespaced. I tried the solutions given in another post (http://stackoverflow.com/questions/4404440/rails-url-for-and-namespaced-models) but they didn’t seem to work.

My models are technically in a separate gem which is namespaced and then my Rails app includes that gem and provides controllers. Without changing that setup, is there a way to get “url_for” to work?

Answer 1

As mentioned in one of your comments above, you have

resources :widgets

in your config/routes.rb. In the location you’re trying to set above with the url_for, you’re trying to match the following route

widget GET    /widgets/:id(.:format)    widgets#show

But as you said, url_for w is instead causing rails to guess you’re looking for the (non-existent) some_stuff_widget_path route. Instead change that line to

location = url_for widget_path(w)