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这是一个相当常见的重构,Martin Fowler将其称为“移动字段”。鉴于3款:如何在活动记录模型上执行“移动字段”重构
class Person < ActiveRecord::Base
has_one :contact_details
has_one :address
end
class ContactDetails < ActiveRecord::Base
end
class Address < ActiveRecord::Base
end
我该如何重构,包括迁移,has_one地址从Person到ContactDetails?之后的车型会是什么样子:
class Person < ActiveRecord::Base
has_one :contact_details
end
class ContactDetails < ActiveRecord::Base
has_one :address
end
class Address < ActiveRecord::Base
end