TestMailer错误的参数数量错误

时间:2008-09-25 10:10:05

标签: ruby-on-rails ruby ar-mailer

我在发送电子邮件时遇到了一个奇怪的问题。我得到了这个例外:

ArgumentError (wrong number of arguments (1 for 0)):
/usr/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/base.rb:642:in `initialize'
/usr/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/base.rb:642:in `new'
/usr/lib/ruby/gems/1.8/gems/activerecord-2.1.1/lib/active_record/base.rb:642:in `create'
/usr/lib/ruby/gems/1.8/gems/ar_mailer-1.3.1/lib/action_mailer/ar_mailer.rb:92:in `perform_delivery_activerecord'
/usr/lib/ruby/gems/1.8/gems/ar_mailer-1.3.1/lib/action_mailer/ar_mailer.rb:91:in `each'
/usr/lib/ruby/gems/1.8/gems/ar_mailer-1.3.1/lib/action_mailer/ar_mailer.rb:91:in `perform_delivery_activerecord'
/usr/lib/ruby/gems/1.8/gems/actionmailer-2.1.1/lib/action_mailer/base.rb:508:in `__send__'
/usr/lib/ruby/gems/1.8/gems/actionmailer-2.1.1/lib/action_mailer/base.rb:508:in `deliver!'
/usr/lib/ruby/gems/1.8/gems/actionmailer-2.1.1/lib/action_mailer/base.rb:383:in `method_missing'
/app/controllers/web_reservations_controller.rb:29:in `test_email'

在我的web_reservations_controller中,我有一个简单的方法调用

TestMailer.deliver_send_email

我的TesMailer就像:

class TestMailer < ActionMailer::ARMailer
  def send_email
    @recipients = "xxx@example.com"
    @from = "xxx@example.com"
    @subject = "TEST MAIL SUBJECT"
    @body = "<br>TEST MAIL MESSAGE"
    @content_type = "text/html"
  end
end

你有什么想法吗?

谢谢! 罗伯特

2 个答案:

答案 0 :(得分:1)

问题在于ar_mailer用于存储消息的模型。您可以在回溯中看到异常来自ActiveRecord :: Base.create,当它调用initialize时。通常,ActiveRecord构造函数接受一个参数,但在这种情况下,它看起来像你的模型没有。 ar_mailer应该使用名为Email的模型。你的app / models目录中有这个类吗?如果是这样,是否有任何覆盖初始化?如果你要覆盖初始化,请务必给它参数并调用super。

class Email < ActiveRecord::Base
  def initialize(attributes)
    super
    # whatever you want to do
  end
end

答案 1 :(得分:0)

检查email_class设置是否正确:http://seattlerb.rubyforge.org/ar_mailer/classes/ActionMailer/ARMailer.html#M000002

也不要使用实例变量。尝试:

class TestMailer < ActionMailer::ARMailer
  def send_email
    recipients "roberto.druetto@gmail.com"
    from "roberto.druetto@gmail.com"
    subject "TEST MAIL SUBJECT"
    content_type "text/html"
  end
end

来自docs:body方法有特殊行为。它需要一个哈希,它生成一个以哈希中每个键命名的实例变量,该键包含该键指向的值。

所以这样的东西添加到上面的方法中:

body :user => User.find(1)

允许您在模板中使用@user