ruby-on-rails – 如何使用设计恢复密码(Ruby on Rails)

undefined method `reset_password_sent_at=' for #<User:0x007fb78cfafb68>

任何人都可以帮助我,因为我是Ruby on Rails的新手？

使用Devise恢复密码和向用户发送电子邮件的最佳方法是什么？非常感谢你…

我用的是装饰(2.2.3)

User.rb

require 'digest/md5'

class User < ActiveRecord::Base


  # Setup accessible (or protected) attributes for your model
  belongs_to :shop

  before_create :compute_email_md5

  # Include default devise modules. Others available are:
  # :token_authenticatable,:confirmable,# :lockable,:timeoutable and :omniauthable
  devise :database_authenticatable,:recoverable,:rememberable,:trackable,:validatable,:token_authenticatable


  # Setup accessible (or protected) attributes for your model
  attr_accessible :email,:email_md5,:password,:password_confirmation,:shop_id,:role,:terms,:name,:notify_on_order_received

  validates :terms,:acceptance => true,:on => :create
end

解决方案是
将reset_password_sent_at列添加到用户表