Rails 4.2枚舉不工作

我想在我的應用程序中使用rails枚舉字段的用戶狀態功能，但枚舉似乎沒有工作（我用Devise來管理用戶登錄，註冊.etc）。這是結果在我的rails控制檯，其狀態顯示爲status:0代替status:pendingstatus:activestatus:suspended .etcRails 4.2枚舉不工作

user = User.first User Load (1.6ms) SELECT "users".* FROM "users" ORDER BY "users"."id" ASC LIMIT 1 
=> #<User id: 1, email: "[email protected]", encrypted_password: 
"$2a$11$TFSX2XkearxEz1JlRtd6hOcvj3ScqykNKEKrkqGYLDx...", 
reset_password_token: nil, reset_password_sent_at: nil, 
remember_created_at: nil, sign_in_count: 1, current_sign_in_at: 
"2016-06-10 22:57:03", last_sign_in_at: "2016-06-10 22:57:03", 
current_sign_in_ip: "::1", last_sign_in_ip: "::1", created_at: 
"2016-06-10 22:57:03", updated_at: "2016-06-11 10:59:41", first_name: 
"John", last_name: "Smith", phone: nil, **status: 0**>

，但我已經宣佈的狀態枚舉在我user.rb

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

    enum status: [:pending, :active, :suspended] 
end

這裏是我的遷移

class AddStatusColumn < ActiveRecord::Migration 
    def change  
    add_column :users, :status, :integer, default: 0  
    end 
end

此外，當我使用user.pending?（默認）我得到一個錯誤「未定義的方法`未決？「」比如

irb(main):014:0> user.pending? 
NoMethodError: undefined method `pending?' for #<User:0x315dba8> 
     from C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/activemodel-4.2.6/lib/active_model/attribute_methods.rb:433:in `method_missing' 
     from (irb):14 
     from C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/console.rb:110:in `start' 
     from C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/console.rb:9:in `start' 
     from C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:68:in `console' 
     from C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:39:in `run_command!' 
     from C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands.rb:17:in `<top (required)>' 
     from bin/rails:4:in `require' 
     from bin/rails:4:in `<main>'

我怎麼修復與軌道枚舉這個問題？謝謝！

來源

2016-06-11 Colleen Larsen

感謝您的回覆。它返回0 –

您是否在''用戶'模型中添加了'enum'聲明後重新啓動了Rails控制檯嗎？ – spickermann

是的，它修復了它...謝謝你太多了!!!!! –

當您更改應用程序中的代碼時，您需要重新加載或重新啓動Rails控制檯。

根據變化的類型，更快的重裝可能會解決你的問題：

> reload!

在更大的變化：當您添加或刪除的app文件夾以外的寶石或更改代碼（例如初始化或某事在lib文件夾中），您需要完全退出並重新啓動控制檯：

> exit 
$ rails console

來源

2016-06-11 16:03:48 spickermann

Rails 4.2枚舉不工作

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