在Django Rest框架中获取数据而不增加深度

在我的Django应用程序中，我得到了相关字段的'pk'值，我想用一些其他字段的组合来替换它

Json:

要将

2

替换为

first\u name

我尝试了

slugrelated字段

，如下所示：

序列化程序.py

class AtableSOSerializer(serializers.ModelSerializer):

    owner = serializers.SlugRelatedField(read_only=True, slug_field='first_name')

    class Meta:
        model = MaterialRequest
        fields = ('owner',)


class AllotmentTableSerializer(serializers.ModelSerializer):

    sales_order = AtableSOSerializer(read_only=True)
    send_from_warehouse = serializers.SlugRelatedField(read_only=True, slug_field='name')
    transport_by = serializers.SlugRelatedField(read_only=True, slug_field='name')

    class Meta:
        model = Allotment
        fields = ('transaction_no', 'dispatch_date', 'send_from_warehouse', 'model', 'vehicle_number', 'transport_by',
                  'is_delivered', 'sales_order')

我得到了第一个名字

Json:

但是如何在

所有者

字段中获得

名字

+

姓氏

的组合

此处

owner

是与用户相关的字段

用作

类AtableSOSerializer（serializers.ModelSerializer）：
所有者=序列化程序。SerializerMethodField（）
def get_所有者（自身、实例）：
返回“%s%s”%（instance.owner.first\u name，instance.owner.last\u name）
类元：
模型=物料请求
fields=（'owner'，）

这非常有帮助，非常有效！我将浏览文档以了解更多信息。谢谢

class AtableSOSerializer(serializers.ModelSerializer):

    owner = serializers.SlugRelatedField(read_only=True, slug_field='first_name')

    class Meta:
        model = MaterialRequest
        fields = ('owner',)


class AllotmentTableSerializer(serializers.ModelSerializer):

    sales_order = AtableSOSerializer(read_only=True)
    send_from_warehouse = serializers.SlugRelatedField(read_only=True, slug_field='name')
    transport_by = serializers.SlugRelatedField(read_only=True, slug_field='name')

    class Meta:
        model = Allotment
        fields = ('transaction_no', 'dispatch_date', 'send_from_warehouse', 'model', 'vehicle_number', 'transport_by',
                  'is_delivered', 'sales_order')

{
        "transaction_no": 2321,
        "dispatch_date": "2020-08-01T09:19:37Z",
        "send_from_warehouse": "Yantraksh Logistics Private limited_GGNPC1",
        "model": "Rent",
        "vehicle_number": "__________",
        "transport_by": "Market Transport Vendor",
        "is_delivered": false,
        "sales_order": {
            "owner": "Foo"
        }
    },

class AtableSOSerializer(serializers.ModelSerializer):
    owner = serializers.SerializerMethodField()

    def get_owner(self, instance):
        return "%s %s" % (instance.owner.first_name, instance.owner.last_name)

    class Meta:
        model = MaterialRequest
        fields = ('owner',)