ruby-on-rails – 邮箱不发送电子邮件：参数数量错误(1表示0)

Sent mail to You should add method :mail_email in your Messageable model (2093ms
)
Date: Wed,07 Nov 2012 14:08:50 +0100
From: mail@myemail.com
to: You should add method :mail_email in your Messageable model

以及Mailbox gem的初始化程序：

Mailboxer.setup do |config|

  #Configures if you applications uses or no the email sending for Notifications and Messages
  config.uses_emails = true

  #Configures the default from for the email sent for Messages and Notifications of Mailboxer
  config.default_from = "mail@myemail.com"

  #Configures the methods needed by mailboxer
  config.email_method = :mail_email
  config.name_method = :name

  #Configures if you use or not a search engine and wich one are you using
  #Supported enignes: [:solr,:sphinx] 
  config.search_enabled = false
  config.search_engine = :solr
end

在我的用户模型中,我有：

acts_as_messageable
  def name
    email
  end

 def mail_email
    @mail_email = self.email
 end

但是在发送消息时我看到了这个错误：

ArgumentError in ConversationsController#reply

wrong number of arguments (1 for 0)

Rails.root: C:/rails/sitesale
Application Trace | Framework Trace | Full Trace

app/models/user.rb:17:in `mail_email'
app/controllers/conversations_controller.rb:22:in `reply'

并且控制器方法回复：

def reply
    current_user.reply_to_conversation(conversation,*message_params(:body,:subject))
    redirect_to conversation
  end