Relationship to self in Core Data

Question

I want to create friends list in my core Data. I have entity User with relationship friends. My user have attributes (to simplify):

• userId
• name

I want that he can make friends so i add this relationship:

All friends of course will be have the same pair of attribute.

So when i look into graph i see something like this:

This is correct ? Can i managed it like separate entity? Will creating a new friend create a new user? What is keyword for apple documentation to find an example or description of this behavior?

Answer 1

The relationship is absolutely correct, except that friendship is naturally bidirectional, so inverse relation is friends too. There is no such issue as creating a friend, so it not creates a new user. You can just build a friendship relation between two existing users. The keyword you are looking for is : Core Data Programming Guide :)