的has_many与外键存储在自己的表 [英] has_many with foreign key stored in own table

问题描述

我的模型父的 HAS_ONE 孩子 。然而，对于一些合乎逻辑的理由，我需要存储在父而不是孩子外键。

I have the model Parent that has_one Child. However, for some logical reason, I need to store foreign key in Parent instead of Child.

是否有可能定义 HAS_ONE 与在父外键关系表？

Is it possible to define has_one relationship with foreign key in the Parent table?

我不想定义父 belongs_to的 孩子，因为我希望通过定义来创建父这些对象 accepts_nested_attributes_for 。

I don't want to define Parent belongs_to Child, because I want to create these objects from Parent by defining accepts_nested_attributes_for.

推荐答案

这是 HAS_ONE 的反 - 也就是 belongs_to的。

That is the inverse of has_one - that is belongs_to.

请参阅的http://guides.rubyonrails.org/association_basics.html#choosing-between-belongs-to-and-has-one了解更多信息。

See http://guides.rubyonrails.org/association_basics.html#choosing-between-belongs-to-and-has-one for more information.

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