Question

我正在尝试使用django REST框架在名为cart的模型中添加多个对象。用户将多个cart对象数据发送到CartAddSerializer，序列化器将逐个添加数据库中的行。到目前为止我的代码进度如下：

models.py：

class Cart(models.Model):
    user = models.ForeignKey(User)
    product = models.ForeignKey(Product)
    sh_price = models.DecimalField(max_digits=10, decimal_places=2)
    quantity = models.IntegerField()
    date_added = models.DateTimeField(auto_now_add=True, blank=True, null=True)

class Meta:
    unique_together = ["user", "product"]

serializer.py：

class CartAddSerializer(ModelSerializer):

def __init__(self, *args, **kwargs):
    many = kwargs.pop('many', True)
    super(CartAddSerializer, self).__init__(many=many, *args, **kwargs)

class Meta:
    model = Cart
    fields = ['user', 'product', 'sh_price', 'quantity', 'date_added']
    extra_kwargs = {'date_added': {'read_only': True},
                    'sh_price': {'read_only': True},}

def create(self, data):
    product_data = data.get('product' or None)
    print(product_data)
    print(product_data.id)
    product_price = ProductPrice.objects.get(product=product_data)
    print(product_price)
    print(product_price.sh_price)
    return Cart.objects.create(sh_price=product_price.sh_price, **data)

views.py：

class CartAddAPIView(ListCreateAPIView):
    queryset = Cart.objects.all()
    serializer_class = CartAddSerializer
    lookup_field = 'pk'
    lookup_url_kwarg = 'id'

    def get(self, request, *args, **kwargs):
        try:
            cart = Cart.objects.filter(user=self.kwargs['id'])
            print(cart)
            serializer = CartDetailSerializer(cart, many=True, context={'request': request})
            return Response(serializer.data, status=status.HTTP_200_OK)
        except Exception as e:
            print(str(e))
            return Response({"status": "failed"}, status=status.HTTP_400_BAD_REQUEST)

Answer 1

通常，ListCreateAPIView由GenericAPIView，ListModelMixin，CreateModelMixin混合，因此它不提供创建列表对象功能。它有趣〜listcreateapiview

这是一个例子，你应该用json格式数据发布它。

(load-pkcs12 #P"/path/to/sslcert.p12" "password")

通过一次调用创建多个对象

1 个答案: