【问题标题】:How can I use assets within Mailer?如何在 Mailer 中使用资产?
【发布时间】:2011-11-26 05:11:05
【问题描述】:

我无法在邮件程序中使用任何形式的资产管道,无论是邮件程序本身还是视图。

以下产生并清空 src 图像标签。

<%= image_tag "emails/header-general.png" %>

空图像标签如下所示:

img alt="标头一般"

以下通过模型附加文件并在视图中使用的形式附加一个空图像。

attachments.inline['header.jpg'] = 'emails/header-general.png'
...
<%= image_tag attachments['header.png'] %>

我确实检查了路径,甚至尝试了多条路径等等,但没有运气。 请帮忙。在电子邮件中包含任何形式的图片都会有所帮助。

这是生产环境。

Xenium::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

# Choose the compressors to use
config.assets.js_compressor  = :yui
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

# 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 = :fatal

# Use a different logger for distributed setups
# config.logger = 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://asset.xenium.bg"

# 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 = true
#config.action_mailer.perform_deliveries = true
config.action_mailer.delivery_method = :smtp
config.action_mailer.smtp_settings = {
:address              => "localhost",
:port                 => 25,
:domain               => 'xenium.bg',
#:user_name            => '<username>',
#:password             => '<password>',
#:authentication       => 'plain',
:enable_starttls_auto => 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
end

谢谢!

【问题讨论】:

  • 一些关于调试的一般提示,这也将为您提供一些额外的信息来解决这个问题。 #1。如果您在普通视图中显示相同的图像,它会显示吗?如果是这样,生成的图像 URL 是什么? #2。在mailer版本中,src属性居然是空白的?请包括在您的问题中生成的 img 标签。 #3。当您尝试不同的配置来解决此问题时,请务必小心浏览器缓存。即使您解决了问题,您的浏览器仍可能继续显示“空白”图像。 #4。将您的环境配置文件包含在此问题中。
  • 您好,感谢您的评论。我编辑了我的问题以包含更多内容。没有缓存怪异或其他东西。它似乎不起作用

标签: ruby-on-rails ruby-on-rails-3.1 actionmailer assets asset-pipeline


【解决方案1】:

根据2.3.3 Making Inline Attachments 部分,要创建内联附件,您将执行以下操作

attachments.inline['image.jpg'] = File.read('/path/to/image.jpg')

所以在你的情况下,它应该是

attachments.inline['header.jpg'] = File.read("#{Rails.root}/app/assets/images/emails/header-general.png"

【讨论】:

    【解决方案2】:

    设置 config.action_controller.asset_host 和 config.action_mailer.asset_host 效果很好。

    config.action_mailer.asset_host = URL from where pick image
    <%= image_tag image_path('logo.png') %>
    

    【讨论】:

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