如何在django模型中使用外键获取对象的所有属性

Question

我使用 Djangorestframework 创建了 rest api。我在我的应用国家和州有两个模型。我使用外键方法将相关国家模型转换为状态模型，但是在获取状态 api 中的状态列表时，我正在获取状态名称，但在国家的地方我正在获取国家主键 ID 而不是它的名称如何我可以获取国家/地区的所有字段而不是 PK id

----------
Models.py code
class countries(models.Model):
    country = models.CharField(max_length=10)


    def __str__(self):
        return  self.country


class states(models.Model):
    state = models.CharField(max_length=15)
    country = models.ForeignKey(countries, on_delete=models.PROTECT)

    def __str__(self):
        return self.state

    ----------
    Serializers.py code

    from rest_framework import  serializers
    from .models import countries, states

    class countiresSerializers(serializers.ModelSerializer):

        class Meta:
            model = countries
            fields = '__all__'

    class statesSerializers(serializers.ModelSerializer):

        class Meta:
            model = states
            fields = '__all__'

    ----------
    Viewset.py code--
    from django.shortcuts import render

    from django.http import HttpResponse
    from django.shortcuts import get_object_or_404
    from rest_framework.views import APIView
    from rest_framework.response import Response
    from rest_framework import status
    from.models import countries, states
    from .serializers import countiresSerializers, statesSerializers


    class countryList(APIView):


        def get(self, request):
            country1 = countries.objects.all()
            serializer = countiresSerializers(country1, many=True)
            return Response (serializer.data)


        def __pos__(self):
            pass


    class statesList(APIView):

        def get(self, request):
            state = states.objects.all()
            serializer = statesSerializers(state, many=True)
            return Response (serializer.data)

        def __pos__(self):
            pass

我附上了图片，你可以看到显示主要 ID 而不是名称的国家/地区，我如何获得名称和国家/地区的所有其他相关字段..

Answer 1

您可以使用 depth 序列化程序的选项：

class statesSerializers(serializers.ModelSerializer):

    class Meta:
        model = states
        fields = '__all__'
        depth = 1

如何在django模型中使用外键获取对象的所有属性

How to get all the properties of objects using foreign key in django model

django

django-serializer

django-rest-framework