核心数据NSPredicate NSDate过滤只是为了时间

Question

I have a NSManagedObject in Coredata with a NSDate property.

These NSDate contain different Days and Times,

I'd like to filter with NSPredicate but just by time, for example something like any day from 9:00 to 11:00.

Any idea?

Answer 1

You could use predicateWithBlock: Core Data supports this method in the in-memory and atomic stores, but not in the SQLite-based store. If you use the SQLite-based store, fetch all objects and then filter.