Don't crash when encountering nil in the mapping results dictionary

blakewatters · blakewatters · commit a9a1c3dc48c1 · 2012-12-13T18:12:50.000-05:00
diff --git a/Code/Network/RKManagedObjectRequestOperation.m b/Code/Network/RKManagedObjectRequestOperation.m
@@ -355,7 +355,9 @@ - (BOOL)deleteLocalObjectsMissingFromMappingResult:(RKMappingResult *)result atK
     NSDictionary *mappingResultDictionary = result.dictionary;
     for (NSString *keyPath in keyPaths) {
         id managedObjects = [mappingResultDictionary valueForKeyPath:keyPath];
-        if ([managedObjects isKindOfClass:[NSManagedObject class]]) {
+        if (! managedObjects) {
+            continue;
+        } else if ([managedObjects isKindOfClass:[NSManagedObject class]]) {
             [managedObjectsInMappingResult addObject:managedObjects];
         } else if ([managedObjects isKindOfClass:[NSSet class]]) {
             [managedObjectsInMappingResult unionSet:managedObjects];
