Rails路由錯誤嵌套路由（link_to user_post_path）

Question

編輯//在底部添加了一個編輯。這些問題似乎與user_post_path有關。

我想打字：

<%= link_to 'show', user_post_path(post) %> 

，但讓我的編輯之前，下面列出的錯誤。

而導致：

No route matches {:action=>"show", :controller=>"posts", :user_id=>#<Post id: 1, topic: 
"1st Post", mood: "happy", post: "I don't know. Omg this works!", created_at: 
"2012-03-30 23:42:51", updated_at: "2012-04-01 06:01:48", user_id: 1>} 

想法？

---

我看了有關這一特定問題的其他職位，但我發現我的問題沒有解決方案爲止。

我想要的是顯示與用戶關聯的帖子列表。 rake路由表示/ users /：user_id/posts應該導向索引文件，但奇怪的是錯誤消息引用了post控制器中的：show動作。爲什麼？另外，爲什麼hash_user_id爲空？

所有幫助表示讚賞。

下面是我在瀏覽器中的錯誤：

No route matches {:action=>"show", :controller=>"posts", :user_id=>#<Post id: 1, topic: 
"1st Post", mood: "happy", post: "I don't know. Omg this works!", created_at: 
"2012-03-30 23:42:51", updated_at: "2012-04-01 06:01:48", user_id: 1>} 

W¯¯

1 Testapp::Application.routes.draw do 
2 resources :users do 
3  resources :posts 
4 end 
5 
6 root to: 'home#index' 

這裏是我的耙路線：

user_posts GET /users/:user_id/posts(.:format)   posts#index 
      POST /users/:user_id/posts(.:format)   posts#create 
new_user_post GET /users/:user_id/posts/new(.:format)  posts#new 
edit_user_post GET /users/:user_id/posts/:id/edit(.:format) posts#edit 
user_post GET /users/:user_id/posts/:id(.:format)  posts#show 
      PUT /users/:user_id/posts/:id(.:format)  posts#update 
      DELETE /users/:user_id/posts/:id(.:format)  posts#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 
     root  /          home#index 

Posts控制器：

class PostsController < ApplicationController 
    # GET /posts 
    # GET /posts.json 
    def index 
    @posts = Post.find_by_user_id(params[:user_id]) 

    respond_to do |format| 
     format.html # index.html.erb 
     format.json { render json: @posts } 
    end 
    end 

    # GET /posts/1 
    # GET /posts/1.json 
    def show 
    @post = Post.find(params[:id]) 

    respond_to do |format| 
     format.html # show.html.erb 
     format.json { render json: @post } 
    end 
    end 

    # GET /posts/new 
    # GET /posts/new.json 
    def new 
    @post = Post.new 

    respond_to do |format| 
     format.html # new.html.erb 
     format.json { render json: @post } 
    end 
    end 

    # GET /posts/1/edit 
    def edit 
    @post = Post.find(params[:id]) 
    end 

    # POST /posts 
    # POST /posts.json 
    def create 
    @post = Post.new(params[:post]) 

    respond_to do |format| 
     if @post.save 
     format.html { redirect_to @post, notice: 'Post was successfully created.' } 
     format.json { render json: @post, status: :created, location: @post } 
     else 
     format.html { render action: "new" } 
     format.json { render json: @post.errors, status: :unprocessable_entity } 
     end 
    end 
    end 

    # PUT /posts/1 
    # PUT /posts/1.json 
    def update 
    @post = Post.find(params[:id]) 

    respond_to do |format| 
     if @post.update_attributes(params[:post]) 
     format.html { redirect_to @post, notice: 'Post was successfully updated.' } 
     format.json { head :no_content } 
     else 
     format.html { render action: "edit" } 
     format.json { render json: @post.errors, status: :unprocessable_entity } 
     end 
    end 
    end 

    # DELETE /posts/1 
    # DELETE /posts/1.json 
    def destroy 
    @post = Post.find(params[:id]) 
    @post.destroy 

    respond_to do |format| 
     format.html { redirect_to posts_url } 
     format.json { head :no_content } 
    end 
    end 
end 

編輯//

我將問題的範圍縮小到了link_to。

14 <% @posts.each do |post| %> 
15 <tr> 
16  <td><%= post.topic %></td> 
17  <td><%= post.mood %></td> 
18  <td><%= post.post %></td> 
19  <td><%= post.user_id %></td> 
20  <td><%= link_to user_post_path(post) %> #this is giving me an error 
21 </tr> 
22 <% end %> 
23 </table> 

Answer 1

由於這些是嵌套路徑，您是否考慮過傳遞用戶以及Post？最終網址需要一個user_id以及一個post_id，所以你可能需要調用如下：

<%= link_to user_post_path(post.user, post) %> 

的文檔是在這裏：Rails Guide on Nested Resources