Combining Devise with resources :users in Rails

Question

I am trying to combine Devise with a RESTful user resource using the following code in the routes.rb file:

resources :users, :only => [:index, :show]
devise_for :users

However the url localhost:3000/users/sign_up does not go to the devise sign up page, rather it produces the error "Couldn't find User with ID=sign_up", so it thinks the url is pointing to the show action of the users controller. I have found that swapping the order of the lines produces the intended behaviour:

devise_for :users
resources :users, :only => [:index, :show]

Now when you go to localhost:3000/users/sign_up you do indeed get the sign-up page, and going to localhost:3000/users/1 hits the show action of the users controller as intended.

My question is this: is changing the code order like this the correct way to get devise working together with the users resource? Or is there something deeper going wrong? I suspect that merely swapping those two lines of code round can't be the solution!

Answer 1

My advice in these situations is to check with rake routes In routes the order in which routes are defined matters since earlier routes take precedence.

So in your case resources :users, :only => [:index, :show] created a restfull /users/:id(.:format) route that pointed to {:action=>"show", :controller=>"users"} and when you went to Devise's sign up url /users/sign-up it considered 'sign-up' an :id of the user and naturally couldnt find it.

Now if you do the devise routing setup first, devise's routes take precedence over anything specified later and you get expected behaviour.

Answer 2

Yes, that's the right way to do it (see https://github.com/plataformatec/devise/wiki/How-To:-Manage-users-through-a-CRUD-interface)

Answer 3

In the link David Sulc wrote is shown that you should write a prefix to device_for or resources Example:

devise_for :users, :path_prefix => 'my'
resources :users

Or your users

devise_for :users
scope "/admin" do
  resources :users
end

Both works well for me