4

我的用户模型有一个多态关系。我正在使用设计。

当我尝试编辑用户的详细信息时，出现以下错误：

undefined method `primary_key' for ActiveSupport::HashWithIndifferentAccess:Class

通过表单提交的数据为：

{"utf8"=>"✓",
 "_method"=>"put",
 "authenticity_token"=>"Ap0JP2bs/w9J6iI9rZahiKR1K8UEIi7rp33a4OutMbo=",
 "user"=>{"email"=>"some_email@yahoo.com",
 "rolable"=>{"first_name"=>"Cristian",
 "last_name"=>"Gavrila",
 "city"=>"16"}},
 "commit"=>"Update"}

控制器方法是：

  def update
    @user = User.find(current_user.id)

    if @user.update_attributes(params[:user])
      redirect_to edit_user_registration_path, notice: 'Your profile was successfully updated.'
    else
      redirect_to edit_user_registration_path, error: "Something went wrong, couldn't update your profile!."
    end
  end

型号：

1. 用户

class User < ActiveRecord::Base
  belongs_to :rolable, :polymorphic => true

  # Devise business
  devise :database_authenticatable, :registerable, :recoverable, :rememberable, :trackable, :validatable

  # Setup accessible (or protected) attributes for your model
  attr_accessible :remote_avatar_url, :avatar, :login, :username, :email, :password, :password_confirmation, :remember_me

  # For authenticating with facebook
  attr_accessible :provider, :uid, :rolable
  devise :omniauthable, :omniauth_providers => [:facebook]

  # For authenticating with both username or email
  attr_accessor :login

  # Upload avatar
  mount_uploader :avatar, AvatarUploader

  # Makes username necessary
  validates :username, :presence => true
end

2. 客户

class Customer < ActiveRecord::Base
  has_one :user, :as => :rolable
  has_one :preferences, :class_name => "CustomerPreferences"
  belongs_to :city

  attr_accessible :first_name, :last_name
end

有什么问题？

4

1 回答 1

5

根据您的请求哈希，您将rolable属性传递为：

"rolable"=>{"first_name"=>"Cristian",
           "last_name"=>"Gavrila",
           "city"=>"16"}

除非您指定User模型接受rolable. 但是，您已将您的 as 设置User为属于 aRolable而不是相反。嵌套属性并非旨在处理这种反向关系 - 您可能需要重新考虑您在此处尝试完成的任务，并相应地修改关系。

例如，您可能希望将散列从里到外，并传递嵌入其中的属性rolable的属性。user或者你可能想rolable变成一个 has_one 关联。

于 2013-06-24T15:05:58.113 回答