在我的 Django 应用程序中:
模型.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')
序列化器:
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')
如你看到的,中间目的地是一个多对多字段。
我的问题是——如何 POST 到 ManyToMany 字段?
对于常规字段,我可以使用这样的 json 进行 POST,从我的安卓应用程序:
{ "destination" : "LA", "num_of_spots" : "3", "leaving_time" : "14:35"}
etc.
如何 POST 到 ManyToMany 字段?
先谢谢了!