Ruby on Rails undefined method user_registration_path - ruby-on-rails

Question

I'm getting an error:
NoMethodError in Devise/registrations#new
undefined method 'user_registration_path'
at this line:
<%= form_for(resource, :as => resource_name, :url => registration_path(resource_name)) do |f| %>
This is my routes:
devise_for :user, :controllers => { :registrations => "devise/registrations" }, :skip => [:registrations, :sessions] do
# devise/registrations
get 'signup' => 'devise/registrations#new', :as => :new_user_registration
post 'signup' => 'devise/registrations#create', :as => :custom_user_registration
end
Rake Routes:
new_user_registration GET /signup(.:format) devise/registrations#new
custom_user_registration POST /signup(.:format) devise/registrations#create
why am I getting the user_registration_path error?

Answer 1

Running rake routes, do you see in output smth like this:
user_registration POST /users(.:format) devise/registrations#create
I think if you wrote this line
post 'signup' => 'devise/registrations#create', :as => :custom_user_registration
Now you have:
custom_user_registration POST /signup(.:format) devise/registrations#create
And should use custom_user_registration_path(resource_name) instead of registration_path(resource_name)

Answer 2

You are skipping the registrations routes and not overriding them all with the custom routes you've defined. Remove :registrations from the skipped routes. In your routes.rb:
This
devise_for :user, :controllers => { :registrations => "devise/registrations" }, :skip => [:registrations, :sessions] do
should be
devise_for :user, :controllers => { :registrations => "devise/registrations" }, :skip => [:sessions] do
Or you can add these custom routes if you want the path to always be /signup:
devise_for :user, :controllers => { :registrations => "devise/registrations" }, :skip => [:registrations, :sessions] do
get 'signup' => 'devise/registrations#new', :as => :new_user_registration
post 'signup' => 'devise/registrations#create', as => :user_registration
delete 'signup' => 'devise/registrations#destroy', as => :destroy_user_registration
end
I don't advise changing the helper names (as => :whatever) since the devise controllers and views use them. It's fine to add new ones. I'm not sure you need to specify the controller either if it's the default.