如何在一个菜单显示两种数据

你可以在crud里添加共同的字段，在序列化时用serializerMethod字段动态返回数据，或者用to_representation方法返回更多属性，这两种方式都能够实现返回更多的数据，不只是你的表里的字段，也没有表的限制，也可以是其他表，like this

class DockingModelSerializer(CustomModelSerializer):
    """
    序列化器
    """

    # oid = serializers.SerializerMethodField()  # 订单ID
    # itemId = serializers.SerializerMethodField()  # 商品ID
    # itemImgUrl = serializers.SerializerMethodField()  # 商品图
    # itemTitle = serializers.SerializerMethodField()  # 商品标题
    # itemPrice = serializers.SerializerMethodField()  # 商品价格
    # cpsOrderStatus = serializers.SerializerMethodField()  # 订单状态

    # def get_oid(self, obj):
    #     return OrderModel.objects.get(itemId=obj.itemId).oid

    # def get_itemImgUrl(self, obj):
    #     print(GoodsModel.objects.get(itemId=obj.itemId))
    #     return 'test'
    #
    # def get_itemTitle(self, obj):
    #     return GoodsModel.objects.get(itemId=obj.itemId).itemTitle
    #
    # def get_itemPrice(self, obj):
    #     return GoodsModel.objects.get(itemId=obj.itemId).itemPrice
    #
    # def get_cpsOrderStatus(self, obj):
    #     return GoodsModel.objects.get(itemId=obj.itemId).cpsOrderStatus

    sales = serializers.SerializerMethodField()  # 销量
    regimentalPromotionAmount = serializers.SerializerMethodField()  # 预估

    def get_sales(self, obj):
        return GoodsModel.objects.filter(itemId=obj.itemId).count()

    def get_regimentalPromotionAmount(self, obj):
        return round(random.random(), 2)

    def to_representation(self, instance):
        data = super().to_representation(instance)
        if OrderModel.objects.filter(itemId=instance.itemId).exists():
            data['oid'] = OrderModel.objects.filter(itemId=instance.itemId)[0].oid
        else:
            data['oid'] = ''
        data['itemImgUrl'] = GoodsModel.objects.filter(itemId=instance.itemId)[0].itemImgUrl
        data['itemTitle'] = GoodsModel.objects.filter(itemId=instance.itemId)[0].itemTitle
        data['itemPrice'] = GoodsModel.objects.filter(itemId=instance.itemId)[0].itemPrice / 100
        data['itemStatus'] = GoodsModel.objects.filter(itemId=instance.itemId)[0].get_itemStatus_display()
        data['itemAuditStatus'] = GoodsModel.objects.filter(itemId=instance.itemId)[0].get_itemAuditStatus_display()
        data['itemStock'] = GoodsModel.objects.filter(itemId=instance.itemId)[0].itemStock
        return data

    class Meta:
        model = DockingModel
        fields = "__all__"