设计异步/延迟作业 - 也发送带有延迟作业的自定义电子邮件？

Question

我有一个解决方案，我可以向设计“库存电子邮件”发送默认包含在 Devise with Delayed 作业中的邮件消息。以异步方式。因此我使用以下代码：

/initializers/devise_acync.rb

module Devise


  module Models

    module Confirmable
      alias_method :send_confirmation_instructions_without_delay, :send_confirmation_instructions
      handle_asynchronously :send_confirmation_instructions
    end

    module Recoverable
      alias_method :send_reset_password_instructions_without_delay, :send_reset_password_instructions
      handle_asynchronously :send_reset_password_instructions
    end

    module Lockable
      alias_method :send_unlock_instructions_without_delay, :send_unlock_instructions
      handle_asynchronously :send_unlock_instructions
    end

    module Invitable
      alias_method :deliver_invitation_without_delay, :deliver_invitation
      handle_asynchronously :deliver_invitation
    end


  end

end

在我的用户模型中设计链接到这个模型我做

def confirm!
    welcome_message
    super
  end

private

  def welcome_message
     ::Devise.mailer.welcome_instructions(self).deliver
  end

让我眼花缭乱的大问题： 我怎样才能发送这个欢迎消息真正的延迟工作？ 您将如何添加其他自定义且未包含在内的电子邮件，以便它们也发送真正的延迟工作？

Answer 1

我发现这是一个优雅的解决方案 - http://danseaver.com/blog/2011/10/18/sending-devise-emails-with-delayed-job

我稍微改变了它以处理所有传出的设计电子邮件，运行 rails 3.0.7 + DJ 3.0.1

config/initializers/devise.rb

# override Devise::Mailer to use queue outgoing mail into DJ
class DeviseMailer < Devise::Mailer

  def confirmation_instructions(record)
    Devise::Mailer.delay.confirmation_instructions(record)
  end

  def reset_password_instructions(record)
    Devise::Mailer.delay.reset_password_instructions(record)
  end

  def unlock_instructions(record)
   Devise::Mailer.delay.unlock_instructions(record)
  end
end

# Use this hook to configure devise mailer, warden hooks and so forth. The first
# four configuration values can also be set straight in your models.
Devise.setup do |config|
  # ==> Mailer Configuration
  # Configure the e-mail address which will be shown in DeviseMailer.
  config.mailer_sender = APP_CONFIG[:member_email]

  # Configure the class responsible to send e-mails.
  config.mailer = "DeviseMailer"
...

Answer 2

最好使用devise-aync gem 或查看这个小blogpost

Answer 3

我发现以上方法都不适合我。我正在使用Devise 2.0.4 和Rails 3.2.2 和delayed_job_active_record 0.3.2

devise 实际上谈到在代码中的 cmets 中执行类似操作的方式是覆盖 User 类中的方法。因此，我就这样解决了，而且效果很好：

app/models/User.rb

def send_on_create_confirmation_instructions
  Devise::Mailer.delay.confirmation_instructions(self)
end
def send_reset_password_instructions
  Devise::Mailer.delay.reset_password_instructions(self)
end
def send_unlock_instructions
  Devise::Mailer.delay.unlock_instructions(self)
end

Answer 4

您是否尝试过这样做：

def welcome_message
  ::Devise.mailer.delay.welcome_instructions(self)
end

Answer 5

（问题已经快 3 年了，但通过谷歌仍然很容易找到，所以这是我的贡献）

最佳做法是按照源 https://github.com/plataformatec/devise/blob/master/lib/devise/models/authenticatable.rb#L129 中描述的设备说明进行操作

class User
  devise :database_authenticatable, :confirmable

  after_commit :send_pending_notifications

  protected

  def send_devise_notification(notification, *args)
    # If the record is new or changed then delay the
    # delivery until the after_commit callback otherwise
    # send now because after_commit will not be called.
    if new_record? || changed?
      pending_notifications << [notification, args]
    else
      devise_mailer.send(notification, self, *args).deliver
    end
  end

  def send_pending_notifications
    pending_notifications.each do |notification, args|
      devise_mailer.send(notification, self, *args).deliver
    end

    # Empty the pending notifications array because the
    # after_commit hook can be called multiple times which
    # could cause multiple emails to be sent.
    pending_notifications.clear
  end

  def pending_notifications
    @pending_notifications ||= []
  end
end

你只需要替换 2 次出现的

devise_mailer.send(notification, self, *args).deliver

由

devise_mailer.delay.send(notification, self, *args)

Answer 6

这实际上很容易通过覆盖用户模型上的单个方法来实现。 Devise 通过send_devise_notification 方法发送所有电子邮件，因此只需将那里的代码更改为异步友好。

def send_devise_notification(notification, opts = {})
  devise_mailer.delay.send(notification, self, opts)
end

此代码假设为 Sidekiq，尽管语法可能与 Resque 或 DelayedJob 兼容。