Question

图片导致我的heroku应用程序出现问题，因此我在production.rb中将config.assets.compile = false更改为config.assets.compile = true。然后我运行rake assets:precompile并推送到heroku服务器。 Jquery在应用程序网站上运行正常，但不再适用于我的本地副本。在javascript控制台中没有抛出任何错误。以下是他们现在的一些重要文件。

Production.rb

Nonogrammed::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
  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 = true

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

  # 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

的application.js

//= require jquery
//= require jquery_ujs
//= require jquery.ui.core
//= require jquery.ui.widget
//= require jquery.ui.mouse
//= require jquery.ui.draggable
//= require twitter/bootstrap
//= require_tree .


$(function() {
    $( "#draggable" ).draggable({ handle: "#handle" , containment: [0,0,1200,1000] , cursor: "crosshair" });
  });

更新：这是因为删除图像，制作具有相同名称的新图像，然后推送到heroku。不要那样做！

Answer 1

您无需在本地预编译。 Sprockets在服务器启动时自动编译静态资产。

要解决问题，请删除public/assets目录中的已编译文件，提交更改，然后再次部署到Heroku。

然后， in Heroku ，通过从命令行运行以下命令来编译资产：

# from command line via the Heroku Toolbelt
rake run assets:precompile

您的本地资源将在服务器启动时编译（从而再次使jQuery可用），并且Heroku上的资源将预编译到public/assets目录中。

<强>更新：

您可能需要清除浏览器缓存以确保更新的资产路径已加载到您的标记中。

Jquery在预编译后无法正常工作

1 个答案: