为什么 django-rest-framework 不显示 OneToOneField 数据 - django

Question

我想在我的站点中设置 restful API。我使用了 django-rest-framework。当我从数据库中获取一个对象时，它没有显示相关对象。

下面的片段是我的第一个模型（父模型）：

class Profile(models.Model):
    user = models.OneToOneField(settings.AUTH_USER_MODEL, related_name='profile',on_delete=models.CASCADE)
    name = models.CharField(max_length=30)
    family = models.CharField(max_length=50)

下面的片段是我的第二个模型（子模型）：

class Klass(models.Model):
    title = models.CharField(max_length=50)
    description = models.CharField(max_length=500)
    teacher = models.ForeignKey(Profile,related_name='teacher', on_delete=models.CASCADE)
    university = models.CharField(max_length=50, blank=True, null=True)

如您在第二个片段中所见，teacher 从 Profile 模型中获取其值。

但是在 django-rest-framework API 视图中，显示的不是教师的名字，而是 pk.

下面的片段是我的序列化器和视图：

# serializer
class KlassSerializer(serializers.ModelSerializer):

    class Meta:
        model = Klass
        fields = ('id', 'title', 'description', 'teacher')

# view
class KlassView(APIView):

    def get(self, request, pk=None):
        if pk is not None:
            klass = Klass.objects.filter(pk=pk).get()
            serializer = KlassSerializer(klass)
            return Response({'message': 'class get ', 'data': serializer.data,})

这是结果：

{
    "message": "class get ",
    "data": {
        "id": 13,
        "title": "ُThe First Class",
        "description": "Nothing for now!",
        "teacher": 2
    }
}

我该如何解决这个问题？谢谢

Answer 1

试试看，更详细nested-relationships

class TeacherSerializer(serializers.ModelSerializer):

    class Meta:
        model = Profile
        fields = ('name')

class KlassSerializer(serializers.ModelSerializer):
    teacher = TeacherSerializer(read_only=True)

    class Meta:
        model = Klass
        fields = ('id', 'title', 'description', 'teacher')

为什么 django-rest-framework 不显示 OneToOneField 数据 - django

Why django-rest-framework doesn't display OneToOneField data - django

django

django-rest-framework

django-orm

django-serializer