ruby-on-rails - 如何从 Model rails 调用类方法

Question

应用程序/服务/mail_service

class MailService
 def subscribe
  code
 end 
end

用户模型

class User < ActiveRecord::Base
 after_create :user_subscribe
 def user_subscribe
    Services::MailService.new
 end
end

它显示错误，例如uninitialized constant Services

Answer 1

您不必编写服务只需编写：-

MailService.new

Answer 2

尝试这个

require 'MailService.rb'
class User < ActiveRecord::Base
 after_create :user_subscribe
 def user_subscribe
    MailService.new
 end
end