Speed up your Core Data Stack in 10 Minutes
summary
Shows how to run an NSBatchDeleteRequest on a background context, set the result type to return object IDs, build a changes dictionary and call NSManagedObjectContext.mergeChanges(fromRemoteContextSave:into:) so the main UI context sees deletions without blocking. Notes that batch deletes write synchronously to the store so merging is mandatory. Recommends a private background context parented to the main context (or a persistent coordinator pattern) so heavy fetch/delete work moves off the main thread and UI stays responsive.
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chapters (5)
- 0:00Introduction
- 1:06Why Core Data is hated
- 1:55Why Core Data is good
- 3:46Core Data Stack
- 6:38Batch Delete
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