如何处理Django Rest框架中的嵌套序列化程序字段？

from rest_framework import serializers

# 嵌套序列化器类
class NestedSerializer(serializers.Serializer):
    nested_field1 = serializers.CharField()
    nested_field2 = serializers.CharField()

# 主序列化器类
class MainSerializer(serializers.Serializer):
    field1 = serializers.CharField()
    field2 = serializers.CharField()
    nested_field = serializers.SerializerMethodField()

    def get_nested_field(self, obj):
        nested_obj = obj.get_nested_object() # 获取嵌套对象的方法
        nested_serializer = NestedSerializer(nested_obj)
        return nested_serializer.data

# 在视图中使用主序列化器进行序列化和反序列化
class MyView(APIView):
    def get(self, request):
        data = MyModel.objects.all()
        serializer = MainSerializer(data, many=True)
        return Response(serializer.data)

    def post(self, request):
        serializer = MainSerializer(data=request.data)
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data, status=status.HTTP_201_CREATED)
        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)