ruby – 轨道模型的“未定义方法”

我正在使用带有rails的Devise,我想添加一个方法“getAllComments”,所以我写这个：

class User < ActiveRecord::Base
      # Include default devise modules. Others available are:
      # :token_authenticatable,:encryptable,:confirmable,:lockable,:timeoutable and :omniauthable
      devise :database_authenticatable,:registerable,:recoverable,:rememberable,:trackable,:validatable

      # Setup accessible (or protected) attributes for your model
      attr_accessible :email,:password,:password_confirmation,:remember_me,:city,:newsletter_register,:birthday,:postal_code,:address_complement,:address,:lastname,:firstname,:civility

      has_many :hotels_comments

      class << self # Class methods
          def getAllComments
             true
          end
      end
    end

在我的控制器中：

def dashboard
  @user = current_user
  @comments = @user.getAllComments();
end

当我去我的网址时,我得到了

undefined method `getAllComments' for #<User:0x00000008759718>

我做错了什么？

谢谢

解决方法

因为getAllComments是一个类方法,并且您尝试将其作为实例方法进行访问.

您需要访问它：

User.getAllComments

或者将其重新定义为实例方法：

class User < ActiveRecord::Base
  #...

  def getAllComments
    true
  end
end

def dashboard
  @user = current_user
  @comments = @user.getAllComments
end