search

magicalpanda / MagicalRecord

Super Awesome Easy Fetching for Core Data!
Other
10.8k stars 1.8k forks source link

MR_aggregateOperation throws exception #1166

Open donnerluetjen opened 8 years ago

donnerluetjen commented 8 years ago

Is this a bug or am I doing it wrong? I have an entity DLAccountItem with an attribute amount of type Decimal. Trying to use this aggregate function:

sum = [DLAccountItem MR_aggregateOperation:@"sum:" onAttribute:@"amount" withPredicate:nil inContext:moc];

the following error is thrown:

-[NSDecimalNumber count]: unrecognized selector sent to instance 0x608000223600
2016-01-12 23:16:26.373 TherAccount[72461:28525114] An uncaught exception was raised
2016-01-12 23:16:26.373 TherAccount[72461:28525114] -[NSDecimalNumber count]: unrecognized selector sent to instance 0x608000223600
2016-01-12 23:16:26.373 TherAccount[72461:28525114] (
    0   CoreFoundation                      0x00007fff8b132ae2 __exceptionPreprocess + 178
    1   libobjc.A.dylib                     0x00007fff949fff7e objc_exception_throw + 48
    2   CoreFoundation                      0x00007fff8b135b9d -[NSObject(NSObject) doesNotRecognizeSelector:] + 205
    3   CoreFoundation                      0x00007fff8b06e601 ___forwarding___ + 1009
    4   CoreFoundation                      0x00007fff8b06e188 _CF_forwarding_prep_0 + 120
    5   Foundation                          0x00007fff98448ff6 +[_NSPredicateUtilities _getCommonTypeFor:] + 76
    6   Foundation                          0x00007fff9844930a +[_NSPredicateUtilities sum:] + 144
    7   Foundation                          0x00007fff982aecff -[NSFunctionExpression expressionValueWithObject:context:] + 1094
    8   CoreData                            0x00007fff8ec58f8a -[NSMappedObjectStore executeFetchRequest:withContext:] + 2122
    9   CoreData                            0x00007fff8ecb3288 __65-[NSPersistentStoreCoordinator executeRequest:withContext:error:]_block_invoke + 4120
    10  CoreData                            0x00007fff8ecbdb63 gutsOfBlockToNSPersistentStoreCoordinatorPerform + 179
    11  libdispatch.dylib                   0x00007fff95b0933f _dispatch_client_callout + 8
    12  libdispatch.dylib                   0x00007fff95b0a926 _dispatch_barrier_sync_f_invoke + 74
    13  CoreData                            0x00007fff8ecac662 _perform + 194
    14  CoreData                            0x00007fff8ebf05c5 -[NSPersistentStoreCoordinator executeRequest:withContext:error:] + 533
    15  CoreData                            0x00007fff8ebeed4a -[NSManagedObjectContext executeFetchRequest:error:] + 586
    16  CoreData                            0x00007fff8ec3845b -[NSManagedObjectContext(_NestedContextSupport) _parentObjectsForFetchRequest:inContext:error:] + 427
    17  CoreData                            0x00007fff8ec70834 __82-[NSManagedObjectContext(_NestedContextSupport) executeRequest:withContext:error:]_block_invoke + 388
    18  CoreData                            0x00007fff8ec38274 internalBlockToNSManagedObjectContextPerform + 68
    19  libdispatch.dylib                   0x00007fff95b0933f _dispatch_client_callout + 8
    20  libdispatch.dylib                   0x00007fff95b0a926 _dispatch_barrier_sync_f_invoke + 74
    21  CoreData                            0x00007fff8ec381ac _perform + 220
    22  CoreData                            0x00007fff8ec37fcf -[NSManagedObjectContext(_NestedContextSupport) executeRequest:withContext:error:] + 351
    23  CoreData                            0x00007fff8ebeed4a -[NSManagedObjectContext executeFetchRequest:error:] + 586
    24  TherAccount                         0x000000010002e072 __67+[NSManagedObject(MagicalRecord) MR_executeFetchRequest:inContext:]_block_invoke + 66
    25  CoreData                            0x00007fff8ec37ce4 developerSubmittedBlockToNSManagedObjectContextPerform + 196
    26  CoreData                            0x00007fff8ec37bae -[NSManagedObjectContext performBlockAndWait:] + 206
    27  TherAccount                         0x000000010002debf +[NSManagedObject(MagicalRecord) MR_executeFetchRequest:inContext:] + 303
    28  TherAccount                         0x000000010002e34a +[NSManagedObject(MagicalRecord) MR_executeFetchRequestAndReturnFirstObject:inContext:] + 122
    29  TherAccount                         0x0000000100027f43 +[NSManagedObject(MagicalAggregation) MR_aggregateOperation:onAttribute:withPredicate:inContext:] + 803
    30  TherAccount                         0x0000000100005304 -[DLAccountant balance] + 884
blwinters commented 7 years ago

@donnerluetjen I'm also seeing issues when using the Decimal type. Did you figure this out?