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我已经编写了一些 Django 模型并为公交车时刻表系统加载了一些数据，但是在编写查询时遇到了麻烦。以下是模型：

class VehicleJourney(models.Model):
    vehicle_journey = models.CharField(primary_key=True, max_length=100)
    journey_pattern = models.ForeignKey('JourneyPattern')
    departure_time = models.TimeField()

class TimingLink(models.Model):
    timing_link = models.CharField(primary_key=True, max_length=100)
    journey_pattern = models.ForeignKey('JourneyPattern')
    from_seq_no = models.IntegerField()
    from_stop = models.ForeignKey('Stop', related_name='+')
    to_seq_no = models.IntegerField()
    to_stop = models.ForeignKey('Stop', related_name='+')
    runtime = models.IntegerField()

class Stop(models.Model):
    stop_point = models.CharField(primary_key=True, max_length=100)
    common_name = models.CharField(max_length=250)

class JourneyPattern(models.Model):
    journey_pattern = models.CharField(primary_key=True, max_length=100)
    direction = models.CharField(max_length=100)
    service = models.ForeignKey('Service')

class Service(models.Model):
   service_code = models.CharField(primary_key=True, max_length=100)
   registered_operator_ref = models.ForeignKey('Operator')
   mode = models.CharField(max_length=100)
   description = models.CharField(max_length=250)
   start_date = models.DateField()
   end_date = models.DateField()
   origin = models.CharField(max_length=250)
   destination = models.CharField(max_length=250)

该查询输入 from_stop、to_stop 和到达时间，以查找从 from_stop 出发并在到达时间到达 to_stop 的 3 辆下一辆公共汽车。

我想返回 from_stop 和 to_stop 之间的 TimingLinks，每个运行时依次添加到 VehicleJourney.departure_time 中，给出每个站点的出发时间。

关于如何最好地解决这个问题的任何见解？

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