Hi.
I have two entities: Mission and Favorite. Favorite has a single relation to
Mission. I need to fetch all Mission objects that exist in Favorite. I'm using
an NSFetchResultsController.
I created an array with all the Mission objects found in the Favorite entity.
Then I tried to create a predicate like this:
NSPredicate* pred = [NSPredicate predicateWithFormat: @"in %@",
favoriteMissions];
and use that on a fetch of Mission objects. But it complains that it can't
parse that format string.
Clearly, this approach isn't going to work. I could store the Mission's key in
the Favorite table instead, but that's less elegant. Might be the only way to
go.
Any suggestions?
tia,
Rick
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