Rails未保存模型字段

Question

我想知道为什么我的铁轨没有拯救我的encrypted_password场。

这是我的UserController

class UserController < ApplicationController
  require 'bcrypt'
  before_filter :save_login_state, :only => [:new, :create]
  def new
    new_user = User.new(user_params)
    new_user.numRatings = 0    
    if new_user.save
      flash[:notice] = "You signed up successfully"
      flash[:color]= "valid"
    else
      flash[:notice] = "Form is invalid"
      flash[:color]= "invalid"
    end
    redirect_to(:controller => 'sessions', :action => 'login')
  end

  def create
  end

  def update
  end

  def view
  end
  private
    def user_params
      params.require(:user).permit(:name, :email, :password, :password_confirmation)
    end
end

这是我的用户模型

class User < ActiveRecord::Base
    require 'BCrypt'
    attr_accessor :password, :encrypted_password
    EMAIL_REGEX = /\A[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}\z/i
    validates :email, :presence => true, :uniqueness => true, :format => EMAIL_REGEX
    validates :name, :presence => true
    validates :password, :confirmation => true, :presence => true, :on => :create

    before_save :encrypt_password
    after_save :clear_password

    def encrypt_password
      if password.present?
        self.salt = BCrypt::Engine.generate_salt
        self.encrypted_password = BCrypt::Engine.hash_secret(password, salt)
      end
    end

    def clear_password
      self.password = nil
    end

    def self.authenticate(username_or_email="", login_password="")
      if  EMAIL_REGEX.match(username_or_email)    
        user = User.find_by_email(username_or_email)
      end
      if user && user.match_password(login_password)
        return user
      else
        return false
      end
    end   

    def match_password(login_password="")
      encrypted_password == BCrypt::Engine.hash_secret(login_password, salt)
    end

end

此外，我使用此函数保存它

  def login_attempt
    authorized_user = User.authenticate(params["user"]["email"],params["user"]["password"])
    if authorized_user
        session[:user_id] = authorized_user.id
        flash[:notice] = "Wow Welcome again, you logged in as #{authorized_user.username}"
        redirect_to(:action => 'home')
    else
        flash[:notice] = "Invalid Username or Password"
        flash[:color]= "invalid"
        render "login"  
    end
  end

有一件事我怀疑是我创造了我的第一次迁徙

class CreateUsers < ActiveRecord::Migration
  def change
    create_table :users do |t|
      t.string :email
      t.string :password
      t.string :name
      t.float :rating
      t.integer :numRatings

      t.timestamps
    end
  end
end

然而，我将：password字段更改为：encrypted_password，它反映在表中。我已经坚持了两个小时了。我想知道是否有什么突出的地方。谢谢

日志显示，注入的数据减去加密密码

插入“用户”（“created_at”、“email”、“name”、“numRatings”、“salt”、“updated_at“）值（？、？、？？、？）[[“created_at”，“2014-08-05 06:22:41.335373”]，[“电子邮件”，“[e-mail]“]，[”name“，”w“]，“numRatings”，0]，[“salt”，“$2a$10$pagmnNzT4FWEBmaPmiLX1u”]，[更新日期”，“2014-08-05 06:22:41.335373”]]

Answer 1

您提到您将迁移< code >:密码字段更改为< code>:encrypted_password字段，但是您确定您重新初始化了模型吗？即正确地迁移了变更？最后，如果您更改了迁移，则不需要< code>encrypted_password的< code>attr_accessor。同时拥有这两者可能会导致阴影和问题。

Answer 2

您的attr_accessor ：encrypted_password 突出 - 这是用一个简单地在您的模型实例中设置一个名为 @encrypted_password 的实例变量来覆盖 Rails 生成的属性 getter/setter。