NSFetchedResultsController Doesn't Respect Return Type of NSFetchRequest

Originator:craig
Number:rdar://21791991 Date Originated:13-Jul-2015 01:32 PM
Status:Open Resolved:
Product:iPhone/iPod touch Product Version:3.1
Classification:Serious Bug Reproducible:Always
 
This is a duplicate of rdar://7274887

Summary:
The objects returned by -[NSFetchedResultsController objectAtIndexPath:] and -[NSFetchedResultsController fetchedObjects] are full NSManagedObjects even if the resultType of the NSFetchRequest used by the NSFetchedResultsController is set to be NSManagedObjectIDResultType or NSDictionaryResultType.

Steps to Reproduce:
1. Create a Navigation-based Application from the iphone templates and check the box for using Core Data.
2. Insert the line "[fetchRequest setResultType:NSDictionaryResultType];" on line 206 of RootViewController.m
3. Insert the line "NSLog(@"%@", [fetchedResultsController objectAtIndexPath:indexPath]);" between 129 and 130 of the same file.
4. Build and Debug the application.
5. Tap the + button.

Expected Results:
The line printed to the debugger should be a typical NSLog from an NSDictionary.

Actual Results:
The line printed shows it's an NSManagedObject.

Regression:
Values that existed before the current run and loaded from the data store are actual NSDictionaries while the values added at runtime are NSManagedObjects.

Comments


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