Hello,
I am using an NSFetchedResultsCountroller to execute a query against a
Core Data database backed by a sqlite data store. I would like to sort
the results by an NSString property of my NSManagedObject. However, if
the property is nil or an empty string, I would like those results to
appear
You're going to need to do an in-memory sort of these objects. Your
suspicions about Core Data sorting are correct: when using the SQLite
store, it sends the sorting off to the database backend, where it's
far more efficient to do.
Have you thought instead of sorting on a dependent property of
Well, I sort dynamically on different properties so an explicit
sortIndex wouldn't be ideal. But the lack of normalization just might
work. I could create a boolean field which basically acts as
'hasProperty'. I can then hook into -willSave of the NSManagedObject
to set that to YES or NO
