serializers.py 文件源码

def create(self, validated_data, *args, **kwargs):
        city = self.Meta.model.look_up_city(latitude=validated_data['latitude'],
                                            longitude=validated_data['longitude'] ,
                                            )
        validated_data['city'] = city
        place_qs = self.Meta.model.objects.filter(city=validated_data['city'],
                                                  name=validated_data['name']
                                                  )
        if place_qs:
            raise APIException('city: "{}"??????"{}"???,?????'.format(
                validated_data['city'], validated_data['name']))

        return super(PlaceSerializer, self).create(validated_data, *args, **kwargs)