Question

我在做http://guides.rubyonrails.org/getting_started.html教程，使用Rails 5＆amp;创建博客Ruby 2.4。在复制并粘贴到第6单元：添加注释模型的末尾之后，Rails抛出了这个错误：

“文章中的NoMethodError＃Show”：未定义的方法＃article的`article_comments_path'＃

<h2>Add a comment:</h2>
<%= form_for([@article, @article.comments.build]) do |f| %><!--****Error?****-->

2014年10月26日的Stackoverflow回答说要将routes_comments_path帮助方法添加到routes.rb，如下所示：

resources :articles do
  resources :comments
end

但是语法似乎有所改变。

我的routes.rb看起来像这样：

Rails.application.routes.draw do
    resources :articles
    resources :comments#This creates comments as a nested resource within articles.
    root 'welcome#index'
    # For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html
end

我没有在终端中输入任何拼写错误，所以我不确定如何继续。非常感谢任何指导。

我的'佣金路线| grep评论的输出是：

comments GET    /comments(.:format)          comments#index
         POST   /comments(.:format)          comments#create

new_comment GET /comments/new(.:format）评论#new edit_comment获取/comments/:id/edit(.:format）评论#edit 评论GET /comments/:id(.:format）评论#show PATCH /comments/:id(.:format）评论#news PUT /comments/:id(.:format）评论#news DELETE /comments/:id(.:format）comments＃destroy

和我的rake routes输出为：

     Prefix Verb   URI Pattern                  Controller#Action
    articles GET    /articles(.:format)          articles#index
             POST   /articles(.:format)          articles#create
 new_article GET    /articles/new(.:format)      articles#new
edit_article GET    /articles/:id/edit(.:format) articles#edit
     article GET    /articles/:id(.:format)      articles#show
             PATCH  /articles/:id(.:format)      articles#update
             PUT    /articles/:id(.:format)      articles#update
             DELETE /articles/:id(.:format)      articles#destroy
    comments GET    /comments(.:format)          comments#index
             POST   /comments(.:format)          comments#create
 new_comment GET    /comments/new(.:format)      comments#new
edit_comment GET    /comments/:id/edit(.:format) comments#edit
     comment GET    /comments/:id(.:format)      comments#show
             PATCH  /comments/:id(.:format)      comments#update
             PUT    /comments/:id(.:format)      comments#update
             DELETE /comments/:id(.:format)      comments#destroy
        root GET    /                            welcome#index

有什么问题吗？

Answer 1

根据您提供的文档，您应该使用块来嵌套路由：

Rails.application.routes.draw do
  resources :articles
  resources :comments#This creates comments as a nested resource within articles.
  root 'welcome#index
end

Ruby不知道这个缩进，所以您的代码格式如下：

rake routes

编辑：您始终可以使用<div class="comment_list" v-for="comment in all_comments"> <a href="#" class="initial" v-on:click.prevent="replyBox(comment)">REPLY</a> <div id="reply-box-@{{comment.id}}" class="reply-box" v-bind:class="{active: comment.isActive}"> <div class="user_comment row"> <div class="col-md-1 col-sm-1 col-xs-1"> <div class="user_profile_image {{ isset($current_user->personal_user) ? 'bg_blue' : 'bg_green'}}"> @if(isset($current_user->avatar) && $current_user->avatar != '') <img src="{{ avatar_path($current_user->avatar)}}" alt="" /> @else <img src="{{ home_asset('img/user_icon.png') }}" alt="" /> @endif </div> </div> <div class="col-md-11 col-sm-11 col-xs-11"> <textarea class="comment_input" placeholder="Join the discussion..." @keydown.enter.prevent="postComment({{$current_user->id}}, {{$article->id}})" v-model.trim="reply_comment"></textarea> </div> </div> </div> </div>

检查cli中的路径

Answer 2

根据http://guides.rubyonrails.org/routing.html#nested-resources

的Atleast

你还需要做

resources :articles do
  resources :comments
end

设置此项时会出现哪个错误？还尝试重新启动服务器。

Ruby on Rails：文章中的NoMethodError＃Show

2 个答案: