关于在我的rails应用中组织.js文件的建议

Question

我有一个rails应用程序，快把我逼疯了。我不明白为什么我会收到重复的js调用。我猜测这与application.js require语句的顺序或组织以及.js文件的位置有关。我也尝试过使用production.rb，通常只会让.js完全崩溃。下面是我得到的信息：

app
|assets
||javascripts
|||+data_centers
|||-data_center.js
||-application.js
||-rails.js


vendor
|assets
||javascripts
||-autocomplete-rails.js
||-jquery-1.9.1.js
||-jquery-ui-1.10.2.custom.js

application.js具有以下require语句：

//= require jquery-1.9.1
//= require jquery-ui-1.10.2.custom
//= require twitter/bootstrap
//= require bootstrap-typeahead
//= require rails
//= require autocomplete-rails

data_center.js具有以下require语句：

//= require highcharts
//= require highcharts/modules/canvas-tools
//= require highcharts/modules/exporting

以前，我在app/assets中有来自vendor/assets的.js文件，但有人建议我将所有外部.js保存在vendor/assets位置。重点是这不起作用。

我的production.rb看起来像这样：

MyApp::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

  # Full error reports are disabled and caching is turned on
  config.consider_all_requests_local = false
  #default false ^^
  config.action_controller.perform_caching = true

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

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

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

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

  # Defaults to nil and saved in location specified by config.assets.prefix
  # 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 )
  # config.assets.precompile += %w( jquery.js )
  # config.assets.precompile += %w( jquery_ujs.js )
  # config.assets.precompile += %w( jquery-ui-1.10.2.custom.js )
  # config.assets.precompile += %w( twitter/bootstrap.js )
  # config.assets.precompile += %w( bootstrap-typeahead.js )
  # config.assets.precompile += %w( rails.js )
  # config.assets.precompile += %w( autocomplete-rails.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

如果你有什么想法，请告诉我。谢谢。

Answer 1

您可以尝试在production.rb中使用config.assets.debug = true，以便更好地了解情况，但我建议您首先尝试调试开发中资产的问题。

一些gem或它们的依赖项可能正在加载您可能没有意识到的资产。

在您感兴趣的环境中的Rails控制台中(例如，您可能需要ssh到服务器等，和/或在命令中/之前设置环境)：

rails c

您可以使用以下内容从链轮获取有关当前资源的更多信息：

Rails.application.assets.each_file {|path| begin; Rails.application.assets[path].dependencies.each{|d| puts "#{path} dependencies: /assets/#{d.logical_path}"}; rescue; puts "#{path}"; end}

然后，您可以在您的prod环境中查看gem list，或者查看Gemfile.lock以了解gem bundler使用的是什么。也许正在加载您不知道的资产。

资产组织请参见the guide。

此外，考虑到guide suggests some different settings比您在生产配置中使用的配置，例如，它建议使用config.assets.compress = true和设置config.serve_static_assets = false，并让apache或nginx服务静态资产，出于性能原因。