Ruby on Rails 全局 ActiveRecord::Enum [英] Ruby on Rails Global ActiveRecord::Enum

问题描述

我真的很喜欢 Rails 4 的新 Enum 特性，但我想使用我的 enum

枚举状态:[:active, :inactive, :deleted]

在每个模型中.我找不到任何方法来声明例如 config/initializes/enums.rb 并包含每个模型

我是 Ruby on Rails 的新手，需要你的帮助来寻找解决方案

解决方案

使用 ActiveSupport::Concern 这个功能是为 drying up 模型代码而创建的:

#app/models/concerns/my_enums.rb模块 MyEnums扩展 ActiveSupport::关注包括做枚举状态:[:active, :inactive, :deleted]结尾结尾# app/models/my_model.rb类 MyModel 

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I really like Rails 4 new Enum feature, but I want to use my enum

enum status: [:active, :inactive, :deleted]

in every model. I cannot find any way how to declare for example in config/initializes/enums.rb and include every model

I'm very new in Ruby on Rails and need your help to find solution

解决方案

Use ActiveSupport::Concern this feature created for drying up model codes:

#app/models/concerns/my_enums.rb
module MyEnums
  extend ActiveSupport::Concern

  included do
    enum status: [:active, :inactive, :deleted]
  end
end

# app/models/my_model.rb
class MyModel < ActiveRecord::Base
  include MyEnums
end

# app/models/other_model.rb
class OtherModel
  include MyEnums
end

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