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class VerificationCode < ActiveRecord::Base
#status：发送状态
#code_type：发送类型：type 1：注册手机验证码 2：找回密码手机验证码 3：找回密码邮箱验证码 4：绑定手机 5：绑定邮箱 6：手机验证码登录 7：邮箱验证码登录 8：邮箱注册验证码
attr_accessible :code, :code_type, :email, :phone, :status
def valid_code?
(Time.now.to_i - created_at.to_i) <= 10*60
end
