使用 rails 4 时删除 URL 的问题

Question

我正在使用 rails v4.2.4。我无法让模型“发布”的删除功能正常工作。相关日志、配置和代码复制如下：

浏览器中的 HTML

<td><a data-confirm="Are you sure?" rel="nofollow" data-method="delete" href="/posts/1">Destroy</a></td>

我在销毁行中尝试了@post、post & posts_path(post) 和posts_path(@path)，但没有成功。 index.html.erb

 <tbody>
    <% @posts.each do |post| %>
      <tr>
        <td><%= post.title %></td>
        <td><%= post.body %></td>
        <td><%= link_to 'Show', post %></td>
        <td><%= link_to 'Edit', edit_post_path(post) %></td>
        <td><%= link_to 'Destroy', post, method: :delete, data: { confirm: 'Ar
e you sure?' } %></td>
      </tr>
    <% end %>
  </tbody>

routes.rb

Rails.application.routes.draw do
  resources :posts
 # get 'posts/index'

  # The priority is based upon order of creation: first created -> highest pri
ority.
  # See how all your routes lay out with "rake routes".

  # You can have the root of your site routed with "root"
# I commented out the two lines below after adding them when troubleshooting
 #  delete 'posts' => 'posts#destroy'
 #  root 'posts#index'

后控制器

class PostsController < ApplicationController
  before_action :set_post, only: [:show, :edit, :update, :destroy]

  # DELETE /posts/1
  # DELETE /posts/1.json
  def destroy
    @post = Post.find(params[:id])
    @post.destroy
   # flash[:success] = "Post deleted"
    respond_to do |format|
      format.html { redirect_to posts_url, notice: 'Post was successfully destroyed.' }
      format.json { head :no_content }
    end
  end

日志文件

Started GET "/posts/4" for x.x.x.x at 2015-09-13 03:39:15 -0400
Processing by PostsController#show as HTML
  Parameters: {"id"=>"4"}
  Post Load (0.3ms)  SELECT  "posts".* FROM "posts" WHERE "posts"."id" = ? LIMIT 1  [["id", 4]]
  Rendered posts/show.html.erb within layouts/application (0.9ms)

我也尝试将我的 IP 地址列入白名单，但这并没有解决问题。呈现的 HTML 文件中的删除 URL 应该是“/posts/1/delete”还是“/posts/1/destroy”或其他？如何让帖子的销毁功能正常工作？ JS 在浏览器上启用。

更新 application.js

//= require jquery
//= require jquery_ujs
//= require turbolinks
//= require_tree .

宝石文件

gem 'jquery-rails'

application.rb

Rails.application.configure do

# Settings specified here will take precedence over those in config/application.rb.

  # In the development environment your application's code is reloaded on
  # every request. This slows down response time but is perfect for development
  # since you don't have to restart the web server when you make code changes.
  config.cache_classes = false

  # Do not eager load code on boot.
  config.eager_load = false

  # Show full error reports and disable caching.
  config.consider_all_requests_local       = true
  config.action_controller.perform_caching = false

  # Don't care if the mailer can't send.
  config.action_mailer.raise_delivery_errors = false

  # Print deprecation notices to the Rails logger.
  config.active_support.deprecation = :log

  # Raise an error on page load if there are pending migrations.
  config.active_record.migration_error = :page_load

  # Debug mode disables concatenation and preprocessing of assets.
  # This option may cause significant delays in view rendering with a large
  # number of complex assets.
  config.assets.debug = true

  # Asset digests allow you to set far-future HTTP expiration dates on all assets,
  # yet still be able to expire them through the digest params.
  config.assets.digest = true

  # Adds additional error checking when serving assets at runtime.
  # Checks for improperly declared sprockets dependencies.
  # Raises helpful error messages.
  config.assets.raise_runtime_errors = true

  # Raises error for missing translations
  # config.action_view.raise_on_missing_translations = true
end

在浏览器上呈现的 HTML 所有 JS 文件都会出现 503 服务错误。

 <script src="/assets/jquery.self-a714331225dda820228db323939889f149aec0127aeb06255646b616ba1ca419.js?body=1"></script>
<script src="/assets/jquery_ujs.self-d456baa54c1fa6be2ec3711f0a72ddf7a5b2f34a6b4f515f33767d6207b7d4b3.js?body=1"></script>
<script src="/assets/turbolinks.self-c37727e9bd6b2735da5c311aa83fead54ed0be6cc8bd9a65309e9c5abe2cbfff.js?body=1"></script>
<script src="/assets/application.self-3b8dabdc891efe46b9a144b400ad69e37d7e5876bdc39dee783419a69d7ca819.js?body=1"></script>
  <script src="/assets/jquery.self-a714331225dda820228db323939889f149aec0127aeb06255646b616ba1ca419.js?body=1" data-turbolinks-track="true"></script>
<script src="/assets/jquery_ujs.self-d456baa54c1fa6be2ec3711f0a72ddf7a5b2f34a6b4f515f33767d6207b7d4b3.js?body=1" data-turbolinks-track="true"></script>
<script src="/assets/turbolinks.self-c37727e9bd6b2735da5c311aa83fead54ed0be6cc8bd9a65309e9c5abe2cbfff.js?body=1" data-turbolinks-track="true"></script>
<script src="/assets/application.self-3b8dabdc891efe46b9a144b400ad69e37d7e5876bdc39dee783419a69d7ca819.js?body=1" data-turbolinks-track="true"></script>
  <meta name="csrf-param" content="authenticity_token" />
<meta name="csrf-token" content="2z8rPBN8GkxpFVpQjDK+Bnd2fX/FSYG23VdVX+FxdvlOsa2ggi60psjDNQ31Y05FDbXKIQyM3WLhh19BCuGRGA==" />
</head>

问题已解决： 这个问题是由于我在 Rails 前面运行的代理服务器配置错误引起的。此代理将静态资产的流量路由到不正确的地址，导致 JS 文件无法被拾取。修复此问题后，删除/销毁功能正常工作！！

Answer 1

您生成的 HTML、路由和控制器看起来都不错。听起来您的应用程序和浏览器中启用了正确的 js，但在您的日志中，您的请求是 GET 而不是 DELETE。这使我相信您的 javascript 中的其他地方一定有错误，这会阻止页面上的所有 javascript 执行。我推荐firebug 来定位错误。

Answer 2

你能在 crome 浏览器中重现这个吗？我的意思是它是特定于浏览器的还是无处不在？

你可以清理你的资产并再次预编译

rake assets:clean
rake assets:precompile