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jquery - 在 Rails 3.2.6 中从开发切换到生产

转载 作者：太空宇宙 更新时间：2023-11-04 05:00:54 26 4
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我有使用 Rails 3.2.6 和 Ruby 1.9.3p0 版本的 Rails 应用程序。我的 Assets 文件夹中有许多 CSS 和 JS(使用 JQuery)文件和 Assets 管道。一切正常，但我从 切换从开发到生产，压缩到名为 application.css 和 application.js 的单个文件，然后我的大部分JQuery 代码都不起作用。我已经尝试了许多现有的解决方案，但没有任何帮助。

请帮助。提前致谢。

这是我的 application.html.erb

<!DOCTYPE html>
<html>
<head>
<title>Tritinum   <%#= controller.action_name %></title>
<%= stylesheet_link_tag    "application", :media => "all" %>
<%= javascript_include_tag "application" %>
<%= javascript_include_tag "http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.17/jquery-     ui.min.js", "jquery.rails.js" %>
<%= stylesheet_link_tag 'http://fonts.googleapis.com/css?family=Droid+Sans:400,700'%>

<%= csrf_meta_tags %>
</head>
<body>
<!-- BEGIN MAIN -->

<section id="main" class="container_16">
<p class="notice"><%#= notice %></p>
   <p class="alert"><%= alert %></p>


    <%= yield %>


 <!-- BEGIN FOOTER -->
      <section class="footer">

        <p>
<span class="left">�Copyright 2012 - All rights reserved.  </span>
   <span class="right">Web Tool v1.0 - Product By<a href="http://www.google.com">Personal.</a></span>
        </p>

        <div class="clear"></div><!-- CLEAR BOTH -->

    </section><!-- end section .footer -->
    <!-- END FOOTER -->

        </section><!-- end section #main -->
     <!-- END MAIN -->

    <!-- BEGIN LOADING OVERLAY -->
    <div id="loading_overlay">
    <div class="loading_message round_bottom">
        <%= image_tag "loading.gif" %>
    </div>
</div>
<!-- END LOADING OVERLAY -->
       </body>
   </html>

应用.rb

require File.expand_path('../boot', __FILE__)

require 'rails/all'

if defined?(Bundler)
 # If you precompile assets before deploying to production, use this line
 Bundler.require(*Rails.groups(:assets => %w(development test)))
 # If you want your assets lazily compiled in production, use this line
 # Bundler.require(:default, :assets, Rails.env)
  end

module Tritinum
class Application < Rails::Application
# Settings in config/environments/* take precedence over those specified here.
# Application configuration should go into files in config/initializers
# -- all .rb files in that directory are automatically loaded.

# Custom directories with classes and modules you want to be autoloadable.
# config.autoload_paths += %W(#{config.root}/extras)

# Only load the plugins named here, in the order given (default is alphabetical).
# :all can be used as a placeholder for all plugins not explicitly named.
# config.plugins = [ :exception_notification, :ssl_requirement, :all ]

# Activate observers that should always be running.
# config.active_record.observers = :cacher, :garbage_collector, :forum_observer

# Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
# Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.
# config.time_zone = 'Central Time (US & Canada)'

# The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
# config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
# config.i18n.default_locale = :de

# Configure the default encoding used in templates for Ruby 1.9.
config.encoding = "utf-8"

# Configure sensitive parameters which will be filtered from the log file.
config.filter_parameters += [:password]

# Use SQL instead of Active Record's schema dumper when creating the database.
# This is necessary if your schema can't be completely dumped by the schema dumper,
# like if you have constraints or database-specific column types
# config.active_record.schema_format = :sql

# Enforce whitelist mode for mass assignment.
# This will create an empty whitelist of attributes available for mass-assignment for all models
# in your app. As such, your models will need to explicitly whitelist or blacklist accessible
# parameters by using an attr_accessible or attr_protected declaration.
config.active_record.whitelist_attributes = true

# Enable the asset pipeline
  config.assets.enabled = true
  config.assets.initialize_on_precompile = false
 # config.assets.precompile = ['*.css']
# Version of your assets, change this if you want to expire all your assets
   config.assets.version = '1.0'
 end
 end

生产.rb

 Tritinum::Application.configure do
 # Settings specified here will take precedence over those in config/application.rb

 # Code is not reloaded between requests
 config.cache_classes = true

 # C hoose the compressors to use
 config.assets.js_compressor  = :uglifier
   config.assets.css_compressor = :yui
  # Full error reports are disabled and caching is turned on
  config.consider_all_requests_local       = false
  config.action_controller.perform_caching = true

 # Disable Rails's static asset server (Apache or nginx will already do this)
    config.serve_static_assets = false

   # Compress JavaScripts and CSS
   config.assets.compress = false

   # Don't fallback to assets pipeline if a precompiled asset is missed
    config.assets.compile = true

  # Generate digests for assets URLs
      config.assets.digest = true

  # Defaults to Rails.root.join("public/assets")
  # config.assets.manifest = YOUR_PATH

  # Specifies the header that your server uses for sending files
  # config.action_dispatch.x_sendfile_header = "X-Sendfile" # for apache
    # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for nginx

      # Force all access to the app over SSL, use Strict-Transport-Security, and use secure    cookies.
    # config.force_ssl = true

      # See everything in the log (default is :info)
      # config.log_level = :debug

       # Prepend all log lines with the following tags
    # config.log_tags = [ :subdomain, :uuid ]

       # Use a different logger for distributed setups
        # config.logger = ActiveSupport::TaggedLogging.new(SyslogLogger.new)

        # Use a different cache store in production
           # config.cache_store = :mem_cache_store

          # Enable serving of images, stylesheets, and JavaScripts from an asset server
          # config.action_controller.asset_host = "http://assets.example.com"

       # Precompile additional assets (application.js, application.css, and all non-JS/CSS are already added)
      # config.assets.precompile += %w( search.js )

      # Disable delivery errors, bad email addresses will be ignored
         # config.action_mailer.raise_delivery_errors = false

        # Enable threaded mode
              # config.threadsafe!

       # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
        # the I18n.default_locale when a translation can not be found)
        config.i18n.fallbacks = true

    #  Send deprecation notices to registered listeners
        config.active_support.deprecation = :notify

          # Log the query plan for queries taking more than this (works
           # with SQLite, MySQL, and PostgreSQL)
             # config.active_record.auto_explain_threshold_in_seconds = 0.5
         end

同时，我在使用此命令编译后在生产环境中启动 Rails 服务器

  RAILS_ENV=production bundle exec rake assets:precompile

我的大部分 JQuery 代码都停止工作了。

gem 文件

 source 'https://rubygems.org'

 gem 'rails', '3.2.3'
 gem 'haml'

 # Bundle edge Rails instead:
 # gem 'rails', :git => 'git://github.com/rails/rails.git'
gem 'wkhtmltopdf-binary'
gem 'sqlite3'
gem 'devise'
gem 'cancan'
gem 'faker'
gem 'rb-readline'
gem 'paperclip'
gem 'wicked_pdf'
gem "nested_form", :git => 'https://github.com/ryanb/nested_form.git'



 # Gems used only for assets and not required
 # in production environments by default.
 group :assets do
 gem 'sass-rails',   '~> 3.2.3'
 gem 'coffee-rails', '~> 3.2.1'

 # See https://github.com/sstephenson/execjs#readme for more supported runtimes
  # gem 'therubyracer', :platform => :ruby

   gem 'uglifier', '>= 1.0.3'
    end

 gem 'jquery-rails'

 # To use ActiveModel has_secure_password
    # gem 'bcrypt-ruby', '~> 3.0.0'

      # To use Jbuilder templates for JSON
      # gem 'jbuilder'

     # Use unicorn as the app server
       # gem 'unicorn'

      # Deploy with Capistrano
      # gem 'capistrano'

     # To use debugger
      # gem 'ruby-debug19', :require => 'ruby-debug'

app/assets/javascripts/application.js 文件

// This is a manifest file that'll be compiled into application.js, which will include all the files
// listed below.
//
// Any JavaScript/Coffee file within this directory, lib/assets/javascripts, vendor/assets/javascripts,
// or vendor/assets/javascripts of plugins, if any, 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
// the compiled file.
//
// WARNING: THE FIRST BLANK LINE MARKS THE END OF WHAT'S TO BE PROCESSED, ANY BLANK LINE SHOULD
// GO AFTER THE REQUIRES BELOW.
//
//= require jquery_nested_form
//= require jquery
//= require jquery_ujs
//= require_tree .
  function remove_fields(link) {
    $(link).previous("input[type=hidden]").value = "1";
    $(link).up(".fields").hide();
  }
  $(document).ready(function(){
    $("select#finding_category_id").change(function(){
        var id_value_string = $(this).val();
        if (id_value_string == "") {
            // if the id is empty remove all the sub_selection options from being selectable and do not do any ajax
            $("select#finding_finding_template_id option").remove();
            var row = "<option value=\"" + "" + "\">" + "" + "</option>";
            $(row).appendTo("select#finding_finding_template_id");
         }
        else {
            // Send the request and update sub category dropdown
            $.ajax({
                dataType: "json",
                cache: false,
                url: '/finding_templates/for_categoryid/' + id_value_string,
                error: function(XMLHttpRequest, errorTextStatus, error){
                    alert("Failed to submit : "+ errorTextStatus+" ;"+error);
                },
                success: function(data){                    
                    // Clear all options from sub category select
                    $("select#finding_finding_template_id option").remove();
                    //put in a empty default line
                    var row = "<option value=\"" + "Select" + "\">" + "" + "</option>";
                    $(row).appendTo("select#finding_finding_template_id");                        
                    // Fill sub category select
                    $.each(data, function(i, j){
                        row = "<option value=\"" + j.finding_template.id + "\">" +          j.finding_template.name + "</option>";  
                        $(row).appendTo("select#finding_finding_template_id");                    
                    });            
                 }
            });
        };
            });
  });

请别人帮忙

最佳答案 

config.assets.initialize_on_precompile = false

^ application.rb 中的那一行是告诉预编译函数延迟预编译。这意味着它只会在您的主应用程序中预编译 Assets 。如果将此设置为 true，它将能够预编译其他引用的 Gem 中包含的 Assets 。因此，除非您在应用程序的 Assets 文件夹中显式 拥有 jquery 文件，否则它可能会在预编译时丢失 - 因此它不会包含在您的 应用程序中。 js.

注意

这一行:config.assets.compile = true 应该告诉您的应用程序在缺少预编译 Assets 时回退到 Assets 管道 - 理想情况下这将意味着它将从普通管道中找到 jquery Assets 。

但是我的猜测是，由于技术上它确实找到了 application.js，您的应用程序不知道有一个丢失的 Assets ，所以它加载预编译了 application.js 然后它就无法获取 jquery 代码。

解决方案

抱歉冗长的解释，但请尝试以下操作 - 在您的 config/application.rb

中设置以下行 
config.assets.initialize_on_precompile

为真

然后您当然必须重建和重新部署 :) 如果这有帮助请告诉我!!

关于jquery - 在 Rails 3.2.6 中从开发切换到生产，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/11554694/

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