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Asked: 2026-06-11T03:58:18+00:00

Hi I’m trying to create a follower-following model (like Twitter) in Core Data. Maybe

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Trying to get my head around a following-follower model in Core Data

Hi I’m trying to create a follower-following model (like Twitter) in Core Data. Maybe I’m too used to using IDs, I’m not sure if this correct. If possible, can someone please give me some advice.

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  1. Editorial Team

    If I understand your problem correctly, you need only the “BDOUser” entity and a “many-to-many” relationship from “BDOUser” to itself.

    • Define “followers” as to-many relationship from “BDOUser” to “BDOUser”.
    • Define “followings” as to-many relationship from “BDOUser” to “BDOUser”.
    • Set “followings” as inverse relationship to “followers”.

    Now you can do things like

    [userA addFollowersObject:userB];

    That will

    • add “userB” to the followers of “userA”, and automatically also
    • add “userA” to the followings of “userB”.
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