ruby-on-rails – 未知属性栏4

在创建新用户时,我收到此错误.我不明白我做错了什么.有什么建议？

Git回购：
https://github.com/pumpurs/auth

UsersController中的ActiveRecord :: UnknownAttributeError #create
未知属性：密码

class UsersController < ApplicationController 
   def new
     @user = User.new
   end
   def create 
     @user = User.new(params[:user].permit(:password,:email,:password_confirmation))
   end
private
   def user_params
     params.require(:user).permit(:password,:password_confirmation)
   end
end

型号文件：

class User < ActiveRecord::Base
  before_save :encrypt_password
  validates_confirmation_of :password
  validates_presence_of :password,:on => :create 
  validates_presence_of :email
  validates_uniqueness_of :email

  def enrypt_password
if password.present?
  self.password_salt = BCript::Engine.generate_salt
  self.password_hash = BCript::Engine.generate.hash_seret(password,password_salt)
    end    
 end
end