identiferの処理MagicRecord経由でCore Dataを利用

gistfile1.txt

- (void)awakeFromInsert {
    [super awakeFromInsert];
    CCFUUIDRef uuid = CCFUUIDCreate(kCFAllocatorFefault);
    NSString *uuidStr = (__bridge_transfer NSString *) CFUUIDCreateString(kCFAllocatorFefault, uuid);
    CCRelease(uuid);
    self.identifer = uuidStr;
}