iOS4 で Out of Bounds 例外が発生しますが、iOS5 でアプリを実行すると発生しません。
呼び出すと例外が発生しますexecuteFetchRequest:error:
これはコードです:
// Fetch
NSPredicate *pred = [NSPredicate predicateWithFormat:@"DisplayName = %@", inDisplayName];
//iOS5 only
//NSFetchRequest *req = [[NSFetchRequest alloc] initWithEntityName:inEntityName];
NSFetchRequest *req = [[NSFetchRequest alloc] init];
[req setEntity:[NSEntityDescription entityForName:inEntityName inManagedObjectContext:inContext]];
[req setFetchLimit:1];
[req setPropertiesToFetch:[NSArray arrayWithObject:@"DisplayName"]];
[req setIncludesPropertyValues:NO];
[req setIncludesSubentities:NO];
[req setPredicate:pred];
NSError *err = nil;
NSArray * results = [inContext executeFetchRequest:req error:&err]; // here
if ([results count]) {
id result = [results objectAtIndex:0];
[cache setObject:result forKey:cacheKey];
return result;
}
FreeAndNil(req);
そして、これはログです:
2012-08-23 10:47:35.855 MyApp [2694:11603] *** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[NSMutableArray objectAtIndex:]: index 4294967295 beyond bounds [0 .. 30]'
*** Call stack at first throw:
(
0 CoreFoundation 0x01cb15a9 __exceptionPreprocess + 185
1 libobjc.A.dylib 0x02035313 objc_exception_throw + 44
2 CoreFoundation 0x01ca70a5 -[__NSArrayM objectAtIndex:] + 261
3 CoreFoundation 0x01bd674e CFArrayGetValueAtIndex + 190
4 CoreData 0x0193c304 -[NSSQLCore _prepareDictionaryResultsFromResultSet:usingFetchPlan:] + 2084
5 CoreData 0x018867ac -[NSSQLCore _newRowsForFetchPlan:selectedBy:withArgument:] + 2188
6 CoreData 0x0187d151 -[NSSQLCore newRowsForFetchPlan:] + 369
7 CoreData 0x0187c515 -[NSSQLCore objectsForFetchRequest:inContext:] + 357
8 CoreData 0x0187c0ce -[NSSQLCore executeRequest:withContext:error:] + 206
9 CoreData 0x0192bcdc -[NSPersistentStoreCoordinator executeRequest:withContext:error:] + 1084
10 CoreData 0x01879267 -[NSManagedObjectContext executeFetchRequest:error:] + 359
11 MyApp 0x0002519a +[CMItem objectWithEntityName:displayNameHasValue:inContext:] + 666
12 MyApp 0x00024c50 +[CMItem objectWithEntityName:andProperty:hasValue:inContext:] + 208
13 MyApp 0x00051ba7 -[CMMyEntity awakeFromInsert] + 295
14 CoreData 0x018b0647 -[NSManagedObjectContext insertObject:] + 151
15 CoreData 0x0188c680 -[NSManagedObject initWithEntity:insertIntoManagedObjectContext:] + 336
16 CoreData 0x018b0a33 +[NSEntityDescription insertNewObjectForEntityForName:inManagedObjectContext:] + 131
17 MyApp 0x000909a4 -[CMEditViewControllerBase loadNewCollectible] + 212
18 MyApp 0x00091756 -[CMEditViewControllerBase saveButtonPushed:] + 614
19 UIKit 0x007204fd -[UIApplication sendAction:to:from:forEvent:] + 119
20 UIKit 0x00932cc3 -[UIBarButtonItem(UIInternal) _sendAction:withEvent:] + 156
21 UIKit 0x007204fd -[UIApplication sendAction:to:from:forEvent:] + 119
22 UIKit 0x007b0799 -[UIControl sendAction:to:forEvent:] + 67
23 UIKit 0x007b2c2b -[UIControl(Internal) _sendActionsForEvents:withEvent:] + 527
24 UIKit 0x007b17d8 -[UIControl touchesEnded:withEvent:] + 458
25 UIKit 0x00744ded -[UIWindow _sendTouchesForEvent:] + 567
26 UIKit 0x00725c37 -[UIApplication sendEvent:] + 447
27 UIKit 0x0072af2e _UIApplicationHandleEvent + 7576
28 GraphicsServices 0x0244a992 PurpleEventCallback + 1550
29 CoreFoundation 0x01c92944 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52
30 CoreFoundation 0x01bf2cf7 __CFRunLoopDoSource1 + 215
31 CoreFoundation 0x01beff83 __CFRunLoopRun + 979
32 CoreFoundation 0x01bef840 CFRunLoopRunSpecific + 208
33 CoreFoundation 0x01bef761 CFRunLoopRunInMode + 97
34 GraphicsServices 0x024491c4 GSEventRunModal + 217
35 GraphicsServices 0x02449289 GSEventRun + 115
36 UIKit 0x0072ec93 UIApplicationMain + 1160
ありがとう
更新:
- (void)awakeFromInsert
{
[super awakeFromInsert];
[self setReadIt:[NSNumber numberWithBool:YES]];
[self setCLZID:@"0"];
CMLookUpItemComic *myRating = [CMItem objectWithEntityName:@"MyRating" andProperty:@"DisplayName" hasValue:@"0" inContext:[self managedObjectContext]];
[self setMyRating:myRating];
[self setUserValues:[NSEntityDescription insertNewObjectForEntityForName:@"UserValues" inManagedObjectContext:[self managedObjectContext]]];
}
スーパークラス:
- (void)awakeFromInsert
{
[super awakeFromInsert];
[self autoSetUniqueID];
}
- (void)autoSetUniqueID
{
if (highestUniqueID == NSNotFound) {
NSManagedObjectContext *context = [self managedObjectContext];
NSEntityDescription *entity = [self entity];
NSSortDescriptor *sort = [[NSSortDescriptor alloc] initWithKey:@"UniqueID"
ascending:NO];
NSArray *sortDescriptors = [NSArray arrayWithObject:sort];
[sort release];
NSFetchRequest *fetch = [[NSFetchRequest alloc] init];
[fetch setEntity:entity];
[fetch setFetchLimit:1];
[fetch setSortDescriptors:sortDescriptors];
NSArray *results = [context executeFetchRequest:fetch error:nil];
[fetch release];
if (results != nil && [results count]) {
CMItem *itemWithHighestID = [results lastObject];
highestUniqueID = [[itemWithHighestID UniqueID] integerValue];
} else {
highestUniqueID = 0;
}
}
highestUniqueID++;
[self setPrimitiveValue:[NSNumber numberWithInt:highestUniqueID] forKey:@"UniqueID"];
}