NSNull handling for NSManagedObject properties values

Question

I\'m setting values for properties of my NSManagedObject, these values are coming from a NSDictionary properly serialized from a JSON file. My problem

Answer 1

Another method is

-[NSObject setValuesForKeysWithDictionary:]

In this scenario you could do

[fight setValuesForKeysWithDictionary:dict];

In the header NSKeyValueCoding.h it defines that "Dictionary entries whose values are NSNull result in -setValue:nil forKey:key messages being sent to the receiver.

The only downside is you will have to transform any keys in the dictionary to keys that are in the receiver. i.e.

dict[@"winnerID"] = dict[@"winner"];
[dict removeObjectForKey:@"winner"];