Django 在公共外键上合并两个序列化查询集的正确方法

假设我有（作为一个人为的例子）两个模型

狗

和

房子

，它们的主人有外键。在本例中，假设每个

所有者最多可以有一只
狗
和一所
房子

class Dog(models.Model):
    name = models.CharField(max_length=36)
    fk_owner = models.ForeignKey(Owner)

class House(models.Model):
    address = models.CharField(max_length=128)
    color = models.CharField(max_length=6) #hexcode
    fk_owner = models.ForeignKey(Owner)

我从API获取序列化数据。我可以分别为
狗
和
房子
对象获取它，如下所示：

序列化程序.py

from rest_framework import serializers
from my_app import Dog

class DogSerializer(serializers.ModelSerializer):
    owner = serializers.CharField(source=fk_owner.name, read_only=True)
    class Meta:
        model = Dog
        fields = ('name', 'owner')
        #same thing for House

dog_api.py

from my_app.views import DogSerializer
from my_app.models import Dog
from rest_framework import generics
from django.utils.decorators import method_decorator
from rest_framework.decorators import api_view

@method_decorator(api_view(['GET']), name='dispatch')
class DogAPI(generics.ListAPIView):
    model=Dog
    serializer_class=DogSerializer
    queryset = Dog.objects.all()

这将给我JSON:
[{“name”：“snoopdog”，“owner”：“Bob Jones”}，等等]

问题是：
组合两个拥有相同
所有者的JSON查询的最佳实践方法是什么（记住每个
所有者只拥有一个
房子
和
狗
）？DRF可以吗，或者我需要编写自己的合并函数吗？我想生成这个JSON：

[{"name":"SnoopDogg", "owner":"Bob Jones", "house":
    {"address":"1 Main St", "color":"FC09A9"}
},
{"name":"Snoopy", "owner":"Charlie Brown", "house":
    {"address":"1 Comic Strip", "color":"00FF00"}
},
etc...
]

首先，如果一个主人只能养一只狗和一所房子，那么你应该用一只狗而不是一只猫

class Dog(models.Model):
    name = models.CharField(max_length=36)
    fk_owner = models.OneToOneField(Owner)

class House(models.Model):
    address = models.CharField(max_length=128)
    color = models.CharField(max_length=6) #hexcode
    fk_owner = models.OneToOneField(Owner)

如果我没弄错的话，您希望
DogAPI
视图也能返回主人/狗居住的房子。您可以通过在
DogSerializer
中定义
HouseSerializer
和
SerializerMethodField
来实现这一点：

from rest_framework import serializers
from my_app import Dog, House

class HouseSerializer(serializers.ModelSerializer):

    class Meta:
        model = House

class DogSerializer(serializers.ModelSerializer):
    owner = serializers.CharField(source=fk_owner.name, read_only=True)
    house = serializers.SerializerMethodField()

    class Meta:
        model = Dog
        fields = ('name', 'owner', 'house')

    def get_house(self, obj):
        """
        Return serialized house data
        """
        house = obj.fk_owner.house
        return HouseSerializer(house).data