Question

在我的django应用程序中：

models.py：

class Destination(models.Model):
    name=models.CharField(max_length=30)

class Ride(models.Model):
    driver = models.ForeignKey('auth.User', related_name='rides_as_driver')
    destination=models.ForeignKey(Destination, related_name='rides_as_final_destination')
    leaving_time=models.TimeField()
    num_of_spots=models.IntegerField()
    passengers=models.ManyToManyField('auth.User', related_name="rides_as_passenger")
    mid_destinations=models.ManyToManyField(Destination, related_name='rides_as_middle_destination')

串行器：

class RideSerializer(serializers.ModelSerializer):
    driver = serializers.ReadOnlyField(source='driver.username')

    class Meta:
        model = Ride
        fields = ('id', 'driver', 'destination', 'leaving_time',
                  'num_of_spots', 'passengers', 'mid_destinations')
        read_only_fields = ('id', 'driver', 'passengers', 'mid_destinations')

如您所见， mid_destinations 是一个ManyToMany字段。

我的问题是 - 如何发布到ManyToMany字段？

到常规字段我可以用这样的json POST，来自我的 android app ：

{ "destination" : "LA", "num_of_spots" : "3", "leaving_time" : "14:35"}等。

如何POST到ManyToMany字段？

提前致谢！

Answer 1

两个步骤： 1.从PLATFORM列表中删除'mid_destinations' 2.发送read_only_fields

等POST数据

我假设您使用的是DRF 3.

DRF - 发布到ManyToMany字段

1 个答案: