Ruby on rails Rails教程入门删除功能不起作用_Ruby On Rails

Ruby on rails Rails教程入门删除功能不起作用

ruby-on-rails

Ruby on rails Rails教程入门删除功能不起作用,ruby-on-rails,Ruby On Rails,我一直在关注，除了博客的两个方面外，其他方面都很有效： delete函数导航到我要删除的页面，而不是删除它在我的CMD中，我得到了一系列与布局文件夹中的路由错误相关的渲染错误，但我不确定这是否是一个将在本教程稍后部分中解决的问题我的问题主要涉及删除链接的非功能性 index.html.erb <h1>My Notes</h1> <%= link_to 'New Note', new_article_path %> <table>

我一直在关注，除了博客的两个方面外，其他方面都很有效：

delete函数导航到我要删除的页面，而不是删除它

在我的CMD中，我得到了一系列与布局文件夹中的路由错误相关的渲染错误，但我不确定这是否是一个将在本教程稍后部分中解决的问题我的问题主要涉及删除链接的非功能性

index.html.erb

    <h1>My Notes</h1>
 <%= link_to 'New Note', new_article_path %>
<table>
  <tr>
    <th>Note Entry Title</th>
    <th>Preview</th>
    <th colspan="3"></th>
  </tr>

  <% @articles.each do |article| %>
    <tr>
      <td><%= article.title %></td>
      <td><%= article.text %></td>
      <td><%= link_to 'Show', article_path(article) %></td>
      <td><%= link_to 'Edit', edit_article_path(article) %></td>
      <td><%= link_to 'Destroy', article_path(article),
              method: :delete,
              data: { confirm: 'Are you sure?' } %></td>  #<<< This is the delete code

    </tr>
  <% end %>
</table>

单击索引页上的“销毁”后的CMD错误日志

Processing by ArticlesController#show as HTML
  Parameters: {"id"=>"4"}
  Article Load (0.0ms)  SELECT  "articles".* FROM "articles" WHERE "articles"."id" = ? LIMIT ?  [["id", 4], ["LIMIT", 1]]
  Rendering articles/show.html.erb within layouts/application
  Rendered articles/show.html.erb within layouts/application (1.0ms)
Completed 200 OK in 81ms (Views: 57.1ms | ActiveRecord: 0.0ms)


Started GET "/stylesheets/default.css" for ::1 at 2017-04-26 13:12:34 -0400

ActionController::RoutingError (No route matches [GET] "/stylesheets/default.css"):
Started GET "/javascripts/default.js" for ::1 at 2017-04-26 13:12:34 -0400

actionpack (5.0.2) lib/action_dispatch/middleware/debug_exceptions.rb:53:in `call'
web-console (3.5.0) lib/web_console/middleware.rb:135:in `call_app'
web-console (3.5.0) lib/web_console/middleware.rb:28:in `block in call'
web-console (3.5.0) lib/web_console/middleware.rb:18:in `catch'
web-console (3.5.0) lib/web_console/middleware.rb:18:in `call'
actionpack (5.0.2) lib/action_dispatch/middleware/show_exceptions.rb:31:in `call'
railties (5.0.2) lib/rails/rack/logger.rb:36:in `call_app'
railties (5.0.2) lib/rails/rack/logger.rb:24:in `block in call'
activesupport (5.0.2) lib/active_support/tagged_logging.rb:69:in `block in tagged'
activesupport (5.0.2) lib/active_support/tagged_logging.rb:26:in `tagged'
activesupport (5.0.2) lib/active_support/tagged_logging.rb:69:in `tagged'
railties (5.0.2) lib/rails/rack/logger.rb:24:in `call'
sprockets-rails (3.2.0) lib/sprockets/rails/quiet_assets.rb:13:in `call'
actionpack (5.0.2) lib/action_dispatch/middleware/request_id.rb:24:in `call'
rack (2.0.1) lib/rack/method_override.rb:22:in `call'
rack (2.0.1) lib/rack/runtime.rb:22:in `call'
activesupport (5.0.2) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
actionpack (5.0.2) lib/action_dispatch/middleware/executor.rb:12:in `call'
actionpack (5.0.2) lib/action_dispatch/middleware/static.rb:136:in `call'
rack (2.0.1) lib/rack/sendfile.rb:111:in `call'
railties (5.0.2) lib/rails/engine.rb:522:in `call'
puma (3.8.2) lib/puma/configuration.rb:224:in `call'
puma (3.8.2) lib/puma/server.rb:600:in `handle_request'
puma (3.8.2) lib/puma/server.rb:435:in `process_client'
puma (3.8.2) lib/puma/server.rb:299:in `block in run'
puma (3.8.2) lib/puma/thread_pool.rb:120:in `block in spawn_thread'

ActionController::RoutingError (No route matches [GET] "/javascripts/default.js"):

actionpack (5.0.2) lib/action_dispatch/middleware/debug_exceptions.rb:53:in `call'
web-console (3.5.0) lib/web_console/middleware.rb:135:in `call_app'
web-console (3.5.0) lib/web_console/middleware.rb:28:in `block in call'
web-console (3.5.0) lib/web_console/middleware.rb:18:in `catch'
web-console (3.5.0) lib/web_console/middleware.rb:18:in `call'
actionpack (5.0.2) lib/action_dispatch/middleware/show_exceptions.rb:31:in `call'
railties (5.0.2) lib/rails/rack/logger.rb:36:in `call_app'
railties (5.0.2) lib/rails/rack/logger.rb:24:in `block in call'
activesupport (5.0.2) lib/active_support/tagged_logging.rb:69:in `block in tagged'
activesupport (5.0.2) lib/active_support/tagged_logging.rb:26:in `tagged'
activesupport (5.0.2) lib/active_support/tagged_logging.rb:69:in `tagged'
railties (5.0.2) lib/rails/rack/logger.rb:24:in `call'
sprockets-rails (3.2.0) lib/sprockets/rails/quiet_assets.rb:13:in `call'
actionpack (5.0.2) lib/action_dispatch/middleware/request_id.rb:24:in `call'
rack (2.0.1) lib/rack/method_override.rb:22:in `call'
rack (2.0.1) lib/rack/runtime.rb:22:in `call'
activesupport (5.0.2) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
actionpack (5.0.2) lib/action_dispatch/middleware/executor.rb:12:in `call'
actionpack (5.0.2) lib/action_dispatch/middleware/static.rb:136:in `call'
rack (2.0.1) lib/rack/sendfile.rb:111:in `call'
railties (5.0.2) lib/rails/engine.rb:522:in `call'
puma (3.8.2) lib/puma/configuration.rb:224:in `call'
puma (3.8.2) lib/puma/server.rb:600:in `handle_request'
puma (3.8.2) lib/puma/server.rb:435:in `process_client'
puma (3.8.2) lib/puma/server.rb:299:in `block in run'
puma (3.8.2) lib/puma/thread_pool.rb:120:in `block in spawn_thread'
  Rendering C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/rescues/routing_error.html.erb within rescues/layout
  Rendering C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/rescues/routing_error.html.erb within rescues/layout
  Rendering C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb
  Rendering C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb
  Rendered C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb (1.5ms)
  Rendered C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb (2.0ms)
         Rendered collection of C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/routes/_route.html.erb [9 times] (3.5ms)
  Rendered collection of C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/routes/_route.html.erb [9 times] (3.0ms)
  Rendered C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/routes/_table.html.erb (1.5ms)
  Rendered C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/routes/_table.html.erb (1.5ms)
  Rendering C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/rescues/_request_and_response.html.erb
  Rendering C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/rescues/_request_and_response.html.erb
  Rendered C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/rescues/_request_and_response.html.erb (1.5ms)
  Rendered C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/rescues/_request_and_response.html.erb (1.0ms)
  Rendered C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/rescues/routing_error.html.erb within rescues/layout (2775.8ms)
  Rendered C:/RailsInstaller/Ruby2.3.0/lib/ruby/gems/2.3.0/gems/actionpack-5.0.2/lib/action_dispatch/middleware/templates/rescues/routing_error.html.erb within rescues/layout (3170.5ms)

rails routes命令结果：

C:\Users\Nick\blog>rails routes
      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
        root GET    /                            welcome#index

application.js代码

// Any JavaScript/Coffee file within this directory, lib/assets/javascripts, vendor/assets/javascripts,
// or any plugin's vendor/assets/javascripts directory can be referenced here using a relative path.
//
// It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
// compiled file. JavaScript code in this file should be added after the last require_* statement.
//
// Read Sprockets README (https://github.com/rails/sprockets#sprockets-directives) for details
// about supported directives.
//
//= require jquery
//= require jquery_ujs
//= require turbolinks

layouts/application.html.erb文件代码：

Rails.application.routes.draw do
  #get 'welcome/index' <- commented this out from earlier step in tutorial

  resources :articles 
  root 'welcome#index'
  # For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html
end

<!DOCTYPE html>
<html>
  <head>
    <title>Scribble</title>
    <%= csrf_meta_tags %>

    <%= stylesheet_link_tag    'default', media: 'all', 'data-turbolinks-track': 'reload' %>
    <%= javascript_include_tag 'default', 'data-turbolinks-track': 'reload' %>
  </head>

  <body>
    <%= yield %>
  </body>
</html>


乱涂

下午1:56更新更改application.js文件中的一些代码似乎缓解了这个问题（从我所知，这显然是一个js加载错误）

从^

<%= stylesheet_link_tag    'application', media: 'all', 'data-turbolinks-track': 'reload' %>
        <%= javascript_include_tag 'application', 'data-turbolinks-track': 'reload' %>

到^

如果我遇到与此主题相关的更多问题，我将继续教程并更新帖子。感谢大家迄今为止的帮助/支持

您可以发布您的

routes.rb

文件以及整个错误消息吗？对于错误消息，如果您可以复制/粘贴而不是截图，这将更有帮助。它以前没有显示确认对话框？这是清晰、格式良好的第一个问题-谢谢@布赖恩-张贴了你要求的两件事。我没想到要复制/粘贴CMD，很抱歉屏幕截图不太可读。@73David我已经测试了你的代码，它工作正常，你做的很好，但是当你点击删除任何记录时，你会得到一个

Completed 200 OK

响应，所以，我没有看到错误，只有那些与您的资产相关的，如

ActionController:：RoutingError（没有路由匹配[GET]“…”）

，您能说明如何添加它们吗？您能发布您的

routes.rb

Completed 200 OK

响应，所以，我没有看到错误，仅仅是那些与您的资产相关的，比如

ActionController:：RoutingError（没有与[GET]“…”匹配的路由）

，您能展示一下如何添加它们吗？

<!DOCTYPE html>
<html>
  <head>
    <title>Scribble</title>
    <%= csrf_meta_tags %>

    <%= stylesheet_link_tag    'default', media: 'all', 'data-turbolinks-track': 'reload' %>
    <%= javascript_include_tag 'default', 'data-turbolinks-track': 'reload' %>
  </head>

  <body>
    <%= yield %>
  </body>
</html>

<%= stylesheet_link_tag    'default', media: 'all', 'data-turbolinks-track': 'reload' %>
        <%= javascript_include_tag 'default', 'data-turbolinks-track': 'reload' %>

<%= stylesheet_link_tag    'application', media: 'all', 'data-turbolinks-track': 'reload' %>
        <%= javascript_include_tag 'application', 'data-turbolinks-track': 'reload' %>