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我在我的 Rails 应用程序上设置了活动管理员。我运行生成器来创建用户资源,但是当我单击管理仪表板上的用户链接时,我得到:

NoMethodError in Admin/users#index

Showing /Users/nelsonkeating/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/1.9.1/gems/activeadmin-0.4.4/app/views/active_admin/resource/index.html.arb where line #1 raised:

undefined method `city_id_contains' for #<MetaSearch::Searches::User:0x007fde92d69840>
Extracted source (around line #1):

1: render renderer_for(:index)

我不知道是什么产生了这个或错误来自哪里..有什么想法吗?谢谢!(如果您需要查看任何其他文件,请告诉我)

楷模:

user.rb

  class User < ActiveRecord::Base
   rolify

  devise :database_authenticatable, :registerable, :confirmable,
         :recoverable, :rememberable, :trackable, :validatable

  attr_accessible :province_id, :city_id
  belongs_to :province
  belongs_to :city

省份.rb

 class Province < ActiveRecord::Base
      has_many :cities
      has_many :users
    end

城市.rb

class City < ActiveRecord::Base
  belongs_to :province
  has_many :users
end

架构.rb

  create_table "users", :force => true do |t|
    t.string   "email",                  :default => "", :null => false
    t.string   "encrypted_password",     :default => "", :null => false
    t.string   "reset_password_token"
    t.datetime "reset_password_sent_at"
    t.datetime "remember_created_at"
    t.integer  "sign_in_count",          :default => 0
    t.datetime "current_sign_in_at"
    t.datetime "last_sign_in_at"
    t.string   "current_sign_in_ip"
    t.string   "last_sign_in_ip"
    t.datetime "created_at",                             :null => false
    t.datetime "updated_at",                             :null => false
    t.string   "name"
    t.date     "date_of_birth"
    t.string   "address"
    t.string   "gender"
    t.integer  "zipcode"
    t.string   "city"
    t.string   "status"
    t.string   "confirmation_token"
    t.datetime "confirmed_at"
    t.datetime "confirmation_sent_at"
    t.string   "unconfirmed_email"
    t.integer  "province_id"
    t.integer  "city_id"
  end

 create_table "provinces", :force => true do |t|
    t.string   "name"
    t.datetime "created_at", :null => false
    t.datetime "updated_at", :null => false
  end

 create_table "cities", :force => true do |t|
    t.string   "name"
    t.integer  "province_id"
    t.datetime "created_at",  :null => false
    t.datetime "updated_at",  :null => false
  end
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1 回答 1

6

这个问题帮助我解决了我的问题。我必须阅读评论才能弄清楚如何解决它,所以我在这里提供答案:

如果您有一个包含belongs_to 关系的模型,如果您的列名与您的属于外键id 列名匹配,Active Admin 将不会喜欢它。

例如,在这种情况下,您的外键是“city_id”,但您还有一个名为“city”的列。活动管理员不喜欢这样。同样,从该专栏开始也确实没有意义。因为您将通过关系访问城市。

要解决此问题,您应该创建一个删除城市列的迁移。

class RemoveCityFromUser < ActiveRecord::Migration    
  def up 
    remove_column :users, :city
  end
end
于 2013-01-13T23:04:01.083 回答