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

显示uninitialized constant Services

之类的错误

Answer 1

你不必写服务只写： -

MailService.new

Answer 2

试试这个

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