Question

我无法弄清楚这一点。一切似乎都正确设置。创建注释工作正常，但当我尝试销毁它时，给我一个丢失的模板错误。我已经搜索并尝试了我能想到的一切。我的一部分认为它是一个JS问题但是当我查看我的日志时，它似乎工作正常。我也使用设计和FYI。任何帮助都会很棒。感谢。

浏览器错误

Missing template comments/show, application/show with {:locale=>[:en], :formats=>[:html], :variants=>[], :handlers=>[:erb, :builder, :raw, :ruby, :jbuilder, :coffee]}.

_comment.html.erb

<p>

  <strong>Comment:</strong>
  <%= comment.body %>
  <p>posted by: <%= comment.user.name %></p>

</p>

  <p>
   <%= link_to 'Destroy Comment', [@pit, comment],
               method: :delete,
               data: { confirm: 'Are you sure?' } %>
</p>

评论控制器

class CommentsController < ApplicationController


 def create
  @pit= Pit.find(params[:pit_id])
  @comment = @pit.comments.build(comments_params)
  @comment.user = current_user
  @comment.save

  redirect_to pit_path(@pit)
end

def destroy
    @pit = Pit.find(params[:pit_id])
    @comment = @pit.comments.find(params[:id])
    @comment.destroy
    redirect_to pit_path(@pit)
end

def show  
end

  private

def comments_params
    params.require(:comment).permit(:body, :user_id)
end

end

坑控制器

def index
  @pit = Pit.all
  @user = User.find_by(params[:id])
  @pit = @user.pits
  @pits = Pit.order('created_at DESC').group_by { |pit| pit.created_at.strftime("%B %Y") }
end

def create
  @user = current_user
  @pit = current_user.pits.create(pit_params)
    if @pit.save
      redirect_to @pit
    else
      render 'new'
    end
end

def show
  @pit = Pit.find(params[:id])
end

def edit
end

def update
end


private

def pit_params
    params.require(:pit).permit(:topic, :summary, :image, :video_url, :author, :user_id)
end

end

路线

Rails.application.routes.draw do

  devise_for :users, :controllers => { registrations: 'registrations' }
  devise_scope :user do
    get 'users/sign_in' => 'devise/sessions#new'
    get 'users/sign_out' => 'devise/sessions#destroy'
    match 'users/:id', to: 'users#show', as: 'user', via: 'get'
  end

  resources :pits do
    resources :comments
  end




  root to: 'pages#home'
  get '/about' => 'pages#about'
end

路线

Prefix Verb   URI Pattern                               Controller#Action
        new_user_session GET    /users/sign_in(.:format)                  devise/sessions#new
            user_session POST   /users/sign_in(.:format)                  devise/sessions#create
    destroy_user_session DELETE /users/sign_out(.:format)                 devise/sessions#destroy
           user_password POST   /users/password(.:format)                 devise/passwords#create
       new_user_password GET    /users/password/new(.:format)             devise/passwords#new
      edit_user_password GET    /users/password/edit(.:format)            devise/passwords#edit
                         PATCH  /users/password(.:format)                 devise/passwords#update
                         PUT    /users/password(.:format)                 devise/passwords#update
cancel_user_registration GET    /users/cancel(.:format)                   registrations#cancel
       user_registration POST   /users(.:format)                          registrations#create
   new_user_registration GET    /users/sign_up(.:format)                  registrations#new
  edit_user_registration GET    /users/edit(.:format)                     registrations#edit
                         PATCH  /users(.:format)                          registrations#update
                         PUT    /users(.:format)                          registrations#update
                         DELETE /users(.:format)                          registrations#destroy
           users_sign_in GET    /users/sign_in(.:format)                  devise/sessions#new
          users_sign_out GET    /users/sign_out(.:format)                 devise/sessions#destroy
                    user GET    /users/:id(.:format)                      users#show
            pit_comments GET    /pits/:pit_id/comments(.:format)          comments#index
                         POST   /pits/:pit_id/comments(.:format)          comments#create
         new_pit_comment GET    /pits/:pit_id/comments/new(.:format)      comments#new
        edit_pit_comment GET    /pits/:pit_id/comments/:id/edit(.:format) comments#edit
             pit_comment GET    /pits/:pit_id/comments/:id(.:format)      comments#show
                         PATCH  /pits/:pit_id/comments/:id(.:format)      comments#update
                         PUT    /pits/:pit_id/comments/:id(.:format)      comments#update
                         DELETE /pits/:pit_id/comments/:id(.:format)      comments#destroy
                    pits GET    /pits(.:format)                           pits#index
                         POST   /pits(.:format)                           pits#create
                 new_pit GET    /pits/new(.:format)                       pits#new
                edit_pit GET    /pits/:id/edit(.:format)                  pits#edit
                     pit GET    /pits/:id(.:format)                       pits#show
                         PATCH  /pits/:id(.:format)                       pits#update
                         PUT    /pits/:id(.:format)                       pits#update
                         DELETE /pits/:id(.:format)                       pits#destroy
                    root GET    /                                         pages#home
                   about GET    /about(.:format)                          pages#about
                    page GET    /pages/*id

Answer 1

由于您正在讨论“JS问题”，我假设您希望AJAX请求调用destroy操作。由于嵌套路由看起来很好，并且您还分配了正确的HTTP谓词，但您错过了将remote：true分配给执行AJAX请求的链接，如：

    <%= link_to 'Destroy Comment', [@pit, comment],
           method: :delete,
           remote: true,
           data: { confirm: 'Are you sure?' } %>

此外：你最终在show动作中的原因是两个请求的资源URL是相同的（所以你的嵌套路由工作正常）。但似乎错过了HTTP动词请做：
1.）发布生成的HTML链接
2.）发布请求标题（特别是X-Requested-With和Accept）
3.）在你的application.js中禁用除jQuery之外的所有自定义JS（在RAILS_ENV =开发中重启你的webserver）并测试删除请求是否仍然失败
如果在application.js中禁用自定义JS适用于链接，那么搜索，自定义JS会使其失败...

销毁在评论中不起作用的路径但我可以创建评论

1 个答案: