我如何在Mailer中使用资产？

Question

我无法在邮件程序中使用任何形式的资产管道,而是使用Mailer本身或视图.

以下生成并清空src图像标记.

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

空图像标记如下所示:

img alt ="Header-general"

以下通过模型附加文件并在视图中使用它的形式会附加一个空图像.

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.在电子邮件中包含图像的任何形式都会有所帮助.

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!

Answer 1

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

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

Answer 2

根据2.3.3 制作内联附件部分，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，应该是

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