hectr / mrfetchedresultscontroller Goto Github PK
View Code? Open in Web Editor NEWExtensible drop-in replacement for NSFetchedResultsController.
License: MIT License
Extensible drop-in replacement for NSFetchedResultsController.
License: MIT License
I'm attempting to convert my code from using NSFetchedResultsController
to MRFetchedResultsController
in order to support OS X 10.11.
When switching my code over, I noticed a bug where when I was calling NSManagedObjectContext.mr_default().mr_saveToPersistentStoreAndWait()
, that my MRFetchedResultsControllerDelegate
getting the controller didChange
method called twice in a row with a ChangeType of .insert
. My fetchedResultsController is using the NSManagedObjectContext.mr_default()
as its context.
However, when I change my fetchedResultsController to instead use NSManagedObjectContext.mr_rootSaving()
, then it only gets called once. This isn't ideal since this context exists in a background thread and I had to wrap the contents in my controller didChange
, controllerWillChangeContent()
, and controllerDidChangeContent()
methods in a DispatchQueue.main.async
since I was making UI updates.
It seems to only happen for insert as far as I can tell.
P.S. I'm using Swift but happy to try to translate to objective-c syntax if that's easier.
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