嵌套的路線和form_for和NoMethodError

作爲錯誤消息下面所述，我不使用「user_profiles_path」作爲複數，因爲我在嵌套的資源中定義「資源：配置文件」。嵌套的路線和form_for和NoMethodError

NoMethodError in Profiles#new

顯示/home/smileymike/rails_projects/bffmapp_v2/app/views/profiles/new.html.erb其中行＃20所提出：

undefined method `user_profiles_path' for #<#<Class:0x90266ac>:0xa041294>

型號：

class User < ActiveRecord::Base 
    has_one :profile 

class Profile < ActiveRecord::Base 
    attr_accessible :name, :surname 
    belongs_to :user

routes.rb：

resources :users do 
    resource :profile (note: has_one) 
    end

v IEW：簡檔/ new.html.erb

<div class="row"> 
    <div class="span6 offset3"> 
    <%= form_for([@user, @profile]) do |f| %> 
     <%= f.label :name %> 
     <%= f.text_field :name %> 

     <%= f.label :surname %> 
     <%= f.text_field :surname %> 

     <%= f.submit "Create my profile", class: "btn btn-large btn-primary" %> 
    <% end %> 
    </div> 
</div>

路由

user_profile POST /users/:user_id/profile(.:format)  profiles#create 
new_user_profile GET /users/:user_id/profile/new(.:format) profiles#new 
edit_user_profile GET /users/:user_id/profile/edit(.:format) profiles#edit 
        GET /users/:user_id/profile(.:format)  profiles#show 
        PUT /users/:user_id/profile(.:format)  profiles#update 
        DELETE /users/:user_id/profile(.:format)  profiles#destroy 
      users GET /users(.:format)      users#index 
        POST /users(.:format)      users#create 
     new_user GET /users/new(.:format)     users#new 
     edit_user GET /users/:id/edit(.:format)    users#edit 
      user GET /users/:id(.:format)     users#show 
        PUT /users/:id(.:format)     users#update 
        DELETE /users/:id(.:format)     users#destroy 
     sessions POST /sessions(.:format)     sessions#create 
     new_session GET /sessions/new(.:format)    sessions#new 
      session DELETE /sessions/:id(.:format)    sessions#destroy 
      root  /         static_pages#home 
      signup  /signup(.:format)      users#new 
      signin  /signin(.:format)      sessions#new 
      signout DELETE /signout(.:format)      sessions#destroy 
      help  /help(.:format)      static_pages#help 
      about  /about(.:format)      static_pages#about 
      contact  /contact(.:format)      static_pages#contact

控制器：

class ProfilesController < ApplicationController 
    def show 
    end 

    def new 
    @user = current_user 
    @profile = current_user.build_profile() 
    end 

    def edit 
    end 

    def create 
    end 

    def update 
    end 

    def destroy 
    end 
end

下面

是一種在profiles_controller.rb

module SessionsHelper 
    def sign_in(user) 
    cookies.permanent[:remember_token] = user.remember_token 
    self.current_user = user 
    end 

    def signed_in? 
    !current_user.nil? 
    end 

    def current_user=(user) 
    @current_user = user 
    end 

    def current_user 
    @current_user ||= User.find_by_remember_token(cookies[:remember_token]) 
    end 

    def sign_out 
    self.current_user = nil 
    cookies.delete(:remember_token) 
    end 
end

來源

2012-07-05 smileyUser

你試過'form_for（[@ profile，@ user]）'嗎？ –

是的，我也試過。奇怪的是，我繼續加載網頁而沒有改變上面顯示的細節。問題消失了。 – smileyUser

我以前見過這種情況，有時我必須在routes.rb被修改時重新啓動應用程序，即使在開發模式下也是如此。 –

說明CURRENT_USER的使用多態r的形式像這樣的東西總是會用新的記錄的複數路徑。你需要在你的形式明確：

form_for([@user, @profile], :url => user_profile_path(@user))

好消息雖然，create路線是一樣的update路線。

來源

2012-07-05 01:55:57

它運作得非常好。但是，它沒有使用外部圓括號（括號）。 – smileyUser

嵌套的路線和form_for和NoMethodError

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