ruby-on-rails - 未知 Action :找不到RegistrationsController的 Action “创建”？

我决定注册一个registrationscontroller，这样我就可以在注册时将用户重定向到一个特定的页面。唯一的问题是用户甚至没有被创建，因为我得到了错误：

Started POST "/users" for 127.0.0.1 at 2012-06-12 14:01:22 -0400

AbstractController::ActionNotFound (The action 'create' could not be found for R
egistrationsController):

我的路线和控制器：

devise_for :users, :controllers => { :registrations => "registrations" }
  devise_scope :user do
    get "/sign_up" => "devise/registrations#new"
    get "/login" => "devise/sessions#new"
    get "/log_out" => "devise/sessions#destroy"
    get "/account_settings" => "devise/registrations#edit"
    get "/forgot_password" => "devise/passwords#new", :as => :new_user_password
    get 'users', :to => 'pages#home', :as => :user_root
  end

class RegistrationsController < ApplicationController
  protected

  def after_sign_up_path_for(resource)
    redirect_to start_path
  end

  def create # tried it with this but no luck.

  end
end

怎么回事？这是怎么解决的？
更新
我把create动作放在protected之外，但现在得到Missing template registrations/create。删除该操作将使我返回Unknown action: create。

最佳答案

看起来问题在于设置RegistrationsController的方式。如果您查看the Devise wiki page explaining how to do this，您将看到以下示例：

class RegistrationsController < Devise::RegistrationsController
  protected

  def after_sign_up_path_for(resource)
    '/an/example/path'
  end
end

注意RegistrationsController是从Devise::RegistrationsController继承的，而不是从ApplicationController继承的。这样做的目的是让您的自定义控制器从designe继承所有正确的行为，包括create操作。