In my CloudKit setup I have a Person record type and each person has a Friend attribute which is a CKReference to another Person object.
I fetch all Person CKRecords. I list these people in a table and list their friends with them. Currently I just take the CKReference and individually fetch each friend using the recordID.
This is the only way I can see to do it, but what would be best practice? Particularly as I am fetching potentially a very large number of friends. It seems counterintuitive to fetch all these objects individually.
I was wondering if there was a method much like CoreData, where you can choose to fetch related objects in the main fetch? So for example, when I fetch a Person it automatically fetched the friends too.
You could use an 'in' predicate query to fetch multiple id's. You can define a predicate like this:
NSPredicate(format: "To_ID in %@", [recordIdMe, recordIdOther])!
In your case where you see the recordIdMe and recordIdOther you should have an array of valid CKReference objects.
In CloudKit there is no functionality to automatically fetch related records.