带有多个 SMTP 服务器的 Rails ActionMailer [英] Rails ActionMailer with multiple SMTP servers

问题描述

我需要在 Rails 应用程序中使用两个不同的 smtp 服务器.看来ActionMailer的构造方式，不可能有不同的smtp_settings一个子类.每当发送消息时，我都可以重新加载每个邮件程序类的 smtp 设置，但这会弄乱我无法控制的 ExceptionNotifier 插件(除非我也弄乱了它).有没有人有类似的解决方案/插件这个?

I have a need to use two different smtp servers in a Rails application. It appears that the way ActionMailer is constructed, it is not possible to have different smtp_settings for a subclass. I could reload the smtp settings for each mailer class whenever a message is being sent, but that messes up the ExceptionNotifier plugin which is outside my control (unless I mess with it too). Does anyone have a solution/plugin for something like this?

理想情况下我想拥有

class UserMailer < ActionMailer::Base; end

然后在environment.rb中设置

and then set in environment.rb

ActionMailer::Base.smtp_settings = standard_smtp_settings
UserMailer.smtp_settings = user_smtp_settings

因此，我的大多数邮件程序(包括 ExceptionNotifier)都会使用默认设置，但 UserMailer 会使用付费中继服务.

Thus, most of my mailers including ExceptionNotifier would pickup the default settings, but the UserMailer would use a paid relay service.

推荐答案

基于 Oreilly 的文章，我想出了我在这里写的解决方案:http://transfs.com/devblog/2009/12/03/custom-smtp-settings-for-a-specific-actionmailer-subclass

Based on the Oreilly article, I came up with the solution I wrote about here: http://transfs.com/devblog/2009/12/03/custom-smtp-settings-for-a-specific-actionmailer-subclass

以下是相关代码:

class MailerWithCustomSmtp < ActionMailer::Base
  SMTP_SETTINGS = {
    :address => "smtp.gmail.com",
    :port => 587,
    :authentication => :plain,
    :user_name => "[e-mail]",
    :password => 'password',
  }

  def awesome_email(bidder, options={})
     with_custom_smtp_settings do
        subject       'Awesome Email D00D!'
        recipients    '[e-mail]'
        from          '[e-mail]'
        body          'Hope this works...'
     end
  end

  # Override the deliver! method so that we can reset our custom smtp server settings
  def deliver!(mail = @mail)
    out = super
    reset_smtp_settings if @_temp_smtp_settings
    out
  end

  private

  def with_custom_smtp_settings(&block)
    @_temp_smtp_settings = @@smtp_settings
    @@smtp_settings = SMTP_SETTINGS
    yield
  end

  def reset_smtp_settings
    @@smtp_settings = @_temp_smtp_settings
    @_temp_smtp_settings = nil
  end
end

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