Administrate::Namespace#namespace_controller_paths

Created by: elquimista

I am trying to add devise for admin authentication. Here's a routes.rb file

...
namespace :admin do
  resources :subscriptions
  root to: 'subscriptions#index'
end

devise_for :admin_users, controllers: {
  sessions: 'admin_users/sessions'
}
...

Now administrate throws a weird error saying uninitialized constant AdminUsers::Session. So I decided to dig this gem source code and turns out that this line causes this problem.

def namespace_controller_paths
  all_controller_paths.select do |controller|
    controller.starts_with?(namespace.to_s)
  end
end

It should be controller.starts_with?("#{namespace.to_s}/") instead, no?