Assigning JSON values to a Core Data Managed Object

JSONCoreData.m

NSEntityDescription	*entityDescription	= nil;
NSArray				*attributeNames		= nil;
NSDictionary		*mappedValues		= nil;

entityDescription = [managedObject entity];
attributeNames = [[entity attributesByName] allKeys];
mappedValues = [jsonObject dictionaryWithValuesForKeys:attributeKeys];
[managedObject setValuesForKeysWithDictionary:mappedValues];