Rails Namespace Routes and form_for

Question

I have a namespace on my routes. rb

namespace :businesses do resources :registration end 

My controller is located in the subdirectory business / registration_controller.

 def new @business = Business.new end 

In my opinion, I want to do this form_for @business do |f| ... form_for @business do |f| ... but I get the following error:

No route matches {:controller=>"businesses", :action=>"create"}

Reboot the server and I also get the following:

undefined method business_path 'for # <#: 0x10339bb20> `

Here are my rake routes:

  home_index GET /home/index(.:format) {:action=>"index", :controller=>"home"} new_user_session GET /users/sign_in(.:format) {:action=>"new", :controller=>"devise/sessions"} user_session POST /users/sign_in(.:format) {:action=>"create", :controller=>"devise/sessions"} destroy_user_session GET /users/sign_out(.:format) {:action=>"destroy", :controller=>"devise/sessions"} user_password POST /users/password(.:format) {:action=>"create", :controller=>"devise/passwords"} new_user_password GET /users/password/new(.:format) {:action=>"new", :controller=>"devise/passwords"} edit_user_password GET /users/password/edit(.:format) {:action=>"edit", :controller=>"devise/passwords"} user_password PUT /users/password(.:format) {:action=>"update", :controller=>"devise/passwords"} cancel_user_registration GET /users/cancel(.:format) {:action=>"cancel", :controller=>"devise/registrations"} user_registration POST /users(.:format) {:action=>"create", :controller=>"devise/registrations"} new_user_registration GET /users/sign_up(.:format) {:action=>"new", :controller=>"devise/registrations"} edit_user_registration GET /users/edit(.:format) {:action=>"edit", :controller=>"devise/registrations"} user_registration PUT /users(.:format) {:action=>"update", :controller=>"devise/registrations"} user_registration DELETE /users(.:format) {:action=>"destroy", :controller=>"devise/registrations"} users GET /users(.:format) {:action=>"index", :controller=>"users"} users POST /users(.:format) {:action=>"create", :controller=>"users"} new_user GET /users/new(.:format) {:action=>"new", :controller=>"users"} edit_user GET /users/:id/edit(.:format) {:action=>"edit", :controller=>"users"} user GET /users/:id(.:format) {:action=>"show", :controller=>"users"} user PUT /users/:id(.:format) {:action=>"update", :controller=>"users"} user DELETE /users/:id(.:format) {:action=>"destroy", :controller=>"users"} full_tree_admin_categories GET /admin/categories/full_tree(.:format) {:action=>"full_tree", :controller=>"admin/categories"} admin_categories GET /admin/categories(.:format) {:action=>"index", :controller=>"admin/categories"} admin_categories POST /admin/categories(.:format) {:action=>"create", :controller=>"admin/categories"} new_admin_category GET /admin/categories/new(.:format) {:action=>"new", :controller=>"admin/categories"} edit_admin_category GET /admin/categories/:id/edit(.:format) {:action=>"edit", :controller=>"admin/categories"} admin_category GET /admin/categories/:id(.:format) {:action=>"show", :controller=>"admin/categories"} admin_category PUT /admin/categories/:id(.:format) {:action=>"update", :controller=>"admin/categories"} admin_category DELETE /admin/categories/:id(.:format) {:action=>"destroy", :controller=>"admin/categories"} businesses_registration_index GET /businesses/registration(.:format) {:action=>"index", :controller=>"businesses/registration"} businesses_registration_index POST /businesses/registration(.:format) {:action=>"create", :controller=>"businesses/registration"} new_businesses_registration GET /businesses/registration/new(.:format) {:action=>"new", :controller=>"businesses/registration"} edit_businesses_registration GET /businesses/registration/:id/edit(.:format) {:action=>"edit", :controller=>"businesses/registration"} businesses_registration GET /businesses/registration/:id(.:format) {:action=>"show", :controller=>"businesses/registration"} businesses_registration PUT /businesses/registration/:id(.:format) {:action=>"update", :controller=>"businesses/registration"} businesses_registration DELETE /businesses/registration/:id(.:format) {:action=>"destroy", :controller=>"businesses/registration"} root /(.:format) {:action=>"index", :controller=>"home"} 

Answer 1

If you have paths with names, the best way is:

 class Admin::BusinessesController < ApplicationController def new @business = Business.new end end 

in routes.rb:

 namespace :admin do resources :businesses end 

In sight:

 form_for [:admin, @business] do |f|... 

Documents: http://guides.rubyonrails.org/form_helpers.html section 2.3.1 Working with namespaces

Regarding your case:

Everything is ok in routes.rb. In the view, you must explicitly write url, because you have a variable in the controller that is different from the controller name:

 form_for @business, :url => business_registration_path do |f|... 

I suppose in business / registration_controller you have something like this:

 class Businesses::RegistrationController < ApplicationController def new @business = Business.new end end 

And one note: I would not create register_controller to register a new business. I think that saving business actions in business_controller is much clearer.

Answer 2

In fact, I think there is a better solution.

 form_for [:admin, @business] 

the problem with providing the url is that if you format the form as a partial view, you will have to deal with the create and update situations. They point to different URLs and end up containing @url in the controller.