CoreData Father, mother children relationship, Can a CoreData subclass have a same relationship with two subclasses?

Question

I am so struck with this problem

I have a "Person" Coredata Subclass,

Obviously a Person has a father(Person), mother(Person),Spouse(Person) and Children(List of Persons)

(represented in terms of relationship)

If a person is one of the children of his father he is one of the children of his mother two.

So "children" has to be related to Mother and Father.

I cant do that in Core data, Am I missing anything? Is there a way to solve this problem?

Answer 1

如果你正在使用CoreData，你应该知道它是SQLite的说唱歌手，所以你需要像在SQL中那样建立你的关系。 人“孩子”是父亲和母亲的n：1实现。 为实例MotherToChild建模一个新实体，您可以在其中执行映射，如SQL中的规范化。