CoreData Update Record Sample

CoreDataUpdateRecord.m

	Statistic *statistic = nil;

	NSFetchRequest *request = [[NSFetchRequest alloc] init];
	request.entity = [NSEntityDescription entityForName:@"Statistic" inManagedObjectContext:context];
	request.predicate = [NSPredicate predicateWithFormat:@"level = %i", _level];

	statistic = [[context executeFetchRequest:request error:nil] lastObject];
	[request release];

	float currentHighScore = [statistic.score floatValue];

	if (currentHighScore < _score) {
		[statistic setValue:[NSNumber numberWithInt:_level] forKey:@"level"];
		[statistic setValue:[NSNumber numberWithFloat:_score] forKey:@"score"];
		[statistic setValue:[NSNumber numberWithInt:_touches] forKey:@"touches"];
		[statistic setValue:[NSNumber numberWithFloat:_time] forKey:@"time"];
		[statistic setValue:[NSNumber numberWithInt:_cleared] forKey:@"cleared"];
	}