django rest_frameworks未获取数据

Question

我正在尝试从我的模型数据库中获取日期。当我请求获取所有对象时，它只显示{}。

我想使用django-restapi获取并发布一个日期

下面是我的代码：

我的序列化程序：

from rest_framework import serializers
from .models import prediction_model


class predserializer(serializers.Serializer):

    class Meta:
        model = prediction_model
        field = '__all__'

我的模型：

from django.db import models


# Create your models here.

class prediction_model(models.Model):
    date = models.DateField()

    def meta(self):
        return self.date

我的views.py：

from django.shortcuts import render
from rest_framework import status
from rest_framework.response import Response
from .models import prediction_model
from .serializers import predserializer

# Create your views here.
from rest_framework.decorators import api_view


def index(request):
    return render(request, 'homesite/index.html')


@api_view(['GET', 'POST'])
def get_date(request):
    if request.method == 'GET':
        prediction = prediction_model.objects.all()
        serializer = predserializer(prediction)
        return Response(serializer.data)


def post_date(request):
    if request.method == 'POST':
        serializer = predserializer(data=request.data)
        return Response(serializer.data, status=status.HTTP_201_CREATED)

Answer 1

您需要从serializers.ModelSerializer继承

class predserializer(serializers.ModelSerializer):

在将查询集传递给序列化程序时，需要传递many=True

serializer = predserializer(prediction, many=True)

Answer 2

serializers.py文件应为：

from rest_framework import serializers
from .models import prediction_model


class predserializer(serializers.ModelSerializer):

    class Meta:
        model = prediction_model
        field = '__all__'

在views.py中，应该是：

from django.shortcuts import render
from rest_framework import status
from rest_framework.response import Response
from .models import prediction_model
from .serializers import predserializer

# Create your views here.
from rest_framework.decorators import api_view


def index(request):
    return render(request, 'homesite/index.html')


@api_view(['GET', 'POST'])
def get_date(request):
    if request.method == 'GET':
        prediction = prediction_model.objects.all()
        serializer = predserializer(prediction, many=True)
        return Response(serializer.data)


def post_date(request):
    if request.method == 'POST':
        serializer = predserializer(data=request.data)
        return Response(serializer.data, status=status.HTTP_201_CREATED)