4

我的生产环境——

# Code is not reloaded between requests
  config.cache_classes = true
  config.assets.enabled = 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 = true
  config.static_cache_control = "public, max-age=31536000"

  # Compress JavaScripts and CSS
  config.assets.compress = true
  config.assets.js_compressor  = :uglifier
  #config.assets.css_compressor = :yui

  # 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

  # See everything in the log (default is :info)
  config.log_level = :warn
  config.log_tags = [:remote_ip, lambda { |req| Time.now }]

  # Enable serving of images, stylesheets, and JavaScripts from an asset server
  ActionController::Base.asset_host = Proc.new { |source|
    unless source.starts_with?('/stylesheets' || '/javascripts')
      "//dddd.cloudfront.net/"
    end
   }

但是,当我使用 image_tag 时,它仍然会返回我的 '/assets..' 相对 url,而不是资产主机的绝对 url。

irb(main):034:0> helper.image_tag('noimage.gif')
=> "<img alt=\"Noimage\" src=\"/assets/noimage.gif\" />"
irb(main):035:0> helper.image_path('noimage.gif')

我似乎无法弄清楚可能缺少什么。我什至尝试过简单的 config.asset_host 设置,但它仍然无法识别该设置。

4

2 回答 2

3

您是否尝试过设置指定的配置?

config.action_controller.asset_host = 'https://abcd.cloudfront.net'

不确定它是否适用于协议相关网址。我只是在我的应用程序中使用 https。

值得注意的是,action mailer 也有类似的设置:

config.action_mailer.asset_host = 'https://abcd.cloudfront.net'
于 2012-08-06T18:07:14.093 回答
-1

Rails 配置中有一些奇怪的地方。根据文档asset_host应该只保留host部分('yoursite.com')。我用帮手解决了:

module EmailsHelper

  def email_image_tag(src) 
    protocol = ActionMailer::Base.default_url_options[:protocol] || 'http'
    image_tag asset_path(src, protocol: protocol)
  end

end

在您的邮件中配置它:

class EmailNotificationsMailer < ActionMailer::Base

  add_template_helper(EmailsHelper)
  ...

end

除了将 URL 传递给它之外,没有办法强制 image_tag 使用 URL。

于 2013-02-26T11:25:34.713 回答