问iPhone测试中的核心数据问题

EN

DetailTaxi *detailView = [[DetailTaxi alloc] initWithNibName:nil bundle:[NSBundle mainBundle]];


NSString *nomville = [[_jsonDict objectAtIndex:indexPath.row] objectForKey:@"label"];
NSString *idVille = [[_jsonDict objectAtIndex:indexPath.row] objectForKey:@"id"];

detailView.title = nomville;
detailView.idVille = idVille;

NSLog(@"Valor: %@", nomville);
NSLog(@"Valor: %@", idVille);

AppDelegate *appDelegate = [[UIApplication sharedApplication] delegate];

NSManagedObjectContext *context = [appDelegate managedObjectContext];
NSManagedObject *villesR = [NSEntityDescription
                                   insertNewObjectForEntityForName:@"Ville"
                                   inManagedObjectContext:context];
[villesR setValue:idVille forKey:@"idV"];
[villesR setValue:nomville forKey:@"nom"];