django - 在 Django Rest Framework 中根据 ID 在 API 中检索数据

Question

我做了一个django函数的APIView

Views.py

class TakenQuizListViewAPI(APIView):

    def get(self, request, *args, **kwargs):
        queryset = self.request.user.supplier.taken_quizzes.select_related('quiz', 'quiz__truck_type').order_by(
            'quiz__posted_on')

        query = suppliertakenquizSerializer(queryset, many=True).data

        return Response(query)

它返回这样的数据:

    {
        "id": 5,
        "score": 0.0,
        "date": "2019-08-20T13:31:15.156691",
        "least_bid": 99,
        "confirmed": "Not Confirmed",
        "supplier": 32,
        "quiz": 16
    },

如何在 API 中获取测验的所有详细信息？？

预期输出:

{
    "id": 5,
    "score": 0.0,
    "date": "2019-08-20T13:31:15.156691",
    "least_bid": 99,
    "confirmed": "Not Confirmed",
    "supplier": 32,
    "quiz": { "foo": "",
              "bar": ""
             }
},

序列化器:

class suppliertakenquizSerializer(serializers.ModelSerializer):

  class Meta:
    model = TakenQuiz
    fields = "__all__"

模型.py:

class TakenQuiz(models.Model):
    supplier = models.ForeignKey(Supplier, on_delete=models.CASCADE, related_name='taken_quizzes')
    quiz = models.ForeignKey(Quiz, on_delete=models.CASCADE, related_name='taken_quizzes')
    score = models.FloatField()
    date = models.DateTimeField(auto_now_add=True)
    least_bid = models.IntegerField(default=0)
    confirmed = models.CharField(max_length=100, default='Not Confirmed')

更新我尝试了什么:

我更新了序列化程序，当它获得测验 ID 时它应该返回测验数据，但我不确定这是否正确

class suppliertakenquizSerializer(serializers.ModelSerializer):
    quiz = serializers.SerializerMethodField()

    def get_items(self, obj):
        try:
            serializer = createrfqSerializer(Quiz.objects.get(pk=int(obj.)))
            quiz_data = serializer.data
        except ItemBatch.DoesNotExist:
            pass
        return quiz_data


    class Meta:
        model = TakenQuiz
        fields = "__all__"

Answer 1

我们在序列化器元类中有 depth 参数。我们可以像下面这样使用它。 depth=1 将检索关系的所有字段。

class suppliertakenquizSerializer(serializers.ModelSerializer):

  class Meta:
    model = TakenQuiz
    fields = "__all__"
    depth = 1

引用:https://www.django-rest-framework.org/api-guide/serializers/#specifying-nested-serialization