django如何将字段序列化为DateTimeRangeField

Question

我在将字段序列化为DateTimeRangeField时遇到了一些问题。请求当前必须具有以下格式：

data = {"time":
         {
           "lower": timeThing,
           "upper": laterTimeThing
         }
       }

我希望它在请求上是这样的：

data = {
           "start": timeThing,
           "end": laterTimeThing
       }

这样我就可以将start/end序列化为lower/upper。这是我的模型：

class Example(models.Model):
    time = DateTimeRangeField()
    user = models.ForeignKey('user.User')

class ExampleAPI(ListCreateAPIView):
    serializer_class = ExampleSerializer
    pagination_class = None
    queryset = Example.objects.all()

    def perform_create(self, serializer):
        serializer.save(user=self.request.user)

class ExampleSerializer(serializers.ModelSerializer):
    time = DateTimeRangeField(write_only=True)
    user = serializers.ReadOnlyField(source='user.id')

    class Meta:
        model = Example
        exclude = ['user']

我尝试过创建一个custom field，但它似乎没有进入被覆盖的to_representation或to_internal_value中。我得到的错误消息是{'time'：‘这个字段是必需的。’}

Answer 1

你可以试试这个

import datetime

from rest_framework import serializers
from drf_extra_fields.fields import DateRangeField


class RangeSerializer(serializers.Serializer):
    ranges = DateRangeField()


serializer = RangeSerializer(data={'ranges': {'lower': datetime.date(2015, 1, 1), 'upper': datetime.date(2015, 2, 1)}})