未定义的方法attr_accessible

时间:2014-05-02 22:23:54

标签: ruby-on-rails ruby

我对rails很新,我正在尝试创建用户登录。我查看了here找到的教程。最后它让我为质量分配添加“attr_accessible”。但是,当我这样做时,我收到以下错误:

undefined method `attr_accessible' for #<Class:0x007ff70f276010>

我在post看到了我所需要的&lt;的ActiveRecord :: Base的。但我确实包含了这一点。以下是我的用户模型的代码:

class User < ActiveRecord::Base

  attr_accessor :password
  EMAIL_REGEX = /\A[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}\z/i
  validates :username, :presence => true, :uniqueness => true, :length => { :in => 3..20 }
  validates :email, :presence => true, :uniqueness => true, :format => EMAIL_REGEX
  validates :password, :confirmation => true #password_confirmation attr
  validates_length_of :password, :in => 6..20, :on => :create
  before_save :encrypt_password
  after_save :clear_password
  attr_accessible :username, :email, :password, :password_confirmation

  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

end

对于可能导致此问题的任何其他想法将非常感谢,谢谢!

编辑:On Rails 4.1。看起来它不再适用了。谢谢fotanus

2 个答案:

答案 0 :(得分:79)

Rails 4.1不允许进行质量分配

而不是在模型中使用attr_accessible :username, :email, :password, :password_confirmation,请使用strong parameters。 您将在UsersController中执行此操作:

    def user_params
      params.require(:user).permit(:username, :email, :password, :password_confirmation)
    end

然后在控制器操作中调用user_params方法。

答案 1 :(得分:15)

Rails 4.1不允许进行质量分配

你必须尝试这样的事情。

class Person
  has_many :pets
  accepts_nested_attributes_for :pets
end

class PeopleController < ActionController::Base
  def create
    Person.create(person_params)
  end

  ...

  private

    def person_params
      # It's mandatory to specify the nested attributes that should be whitelisted.
      # If you use `permit` with just the key that points to the nested attributes hash,
      # it will return an empty hash.
      params.require(:person).permit(:name, :age, pets_attributes: [ :name, :category ])
    end
end

参见

https://github.com/rails/strong_parameters