public void LoadOSMToDatabase(Action <Task> continuation)
        {
            _phase = MainControllerStates.LoadToDb;
            _watch.Start();

            _dbLoader.QueryString = Model.QueryString;
            var tasks = _dbLoader.BeginLoadWays(4);

            Task.Factory.StartNew(() =>
            {
                Task.WaitAll(tasks);
                continuation(null);
                _watch.Stop();
                _phase = MainControllerStates.Idle;
            });
        }