我可以使用现有的 oscar oscar-api 对象模型来实现单项购物篮吗？

Question

我正在处理修改后的结帐视图，该视图接受单一 product/price/quantity、客户信息（姓名、地址、电子邮件）和运费。

问题：我可以为此使用现有的 django-oscar-api 方法吗？换句话说，我想强制执行一个仅包含单一产品的篮子模型，并在进行更新时使用 (LIFO) 后进先出。

这是我的第一次尝试：

# This method is a hybrid of two oscarapi methods
# 1. oscarapi/basket/add-product
# 2. oscarapi/checkout
# It only allows one product to be added to the
# basket and immediately freezes it so that the
# customer can checkout
def post(self, request, format=None):
    # deserialize the product from json
    p_ser = self.add_product_serializer_class(
        data=request.data['addproduct'], context={'request': request})
    if p_ser.is_valid():
        # create a basket
        basket = operations.get_basket(request)
        # load the validate the product
        product = p_ser.validated_data['url']
        # load the validated quantity
        quantity = p_ser.validated_data['quantity']
        # load any options
        options = p_ser.validated_data.get('options', [])
        #validate the basket
        basket_valid, message = self.validate(
            basket, product, quantity, options)
        if not basket_valid:
            return Response(
                {'reason': message},
                status=status.HTTP_406_NOT_ACCEPTABLE)

        # add the product to the validated basket
        basket.add_product(product, quantity=quantity, options=options)

        # apply offers
        operations.apply_offers(request, basket)
        ###### from oscarapi.views.checkout
        # deserialize the checkout object and complete the order
        co_data = request.data['checkout']
        co_data['basket'] = "http://127.0.0.1:8000/oscar-api/baskets/"+str(basket.pk)+"/"
        c_ser = self.checkout_serializer(
            data=co_data, context={'request': request})
        if c_ser.is_valid():
            order = c_ser.save()
            basket.freeze()
            o_ser = self.order_serializer_class(
                order, context={'request': request})
            oscarapi_post_checkout.send(
                sender=self, order=order, user=request.user,
                request=request, response=response)
            return response.Response(o_ser.data)

        return response.Response(c_ser.errors, status.HTTP_406_NOT_ACCEPTABLE)

Answer 1

原始答案是肯定的。

现在...

您肯定已经注意到，使用 oscar-api 实现此任务并非易事。 oscar-api 它只是没有实现对这些功能的思考。它是一个 REST API，没有别的。

最简单的方法...

我建议更深入地分叉 basket 应用程序并覆盖 Basket.add_product 方法以确保您想要的，简单。

0f course this is only valid if you own the backend implementation or have some decision power over it.

看这个：

class Basket(AbstractBasket):
    # ...
    def add_product(self, product, quantity=1, options=None):
        if quantity > 1:
            # Throw an error, set it to 1, is up to you
        # Remove all lines.
        self.flush()
        # Do as usual.
        super(Basket, self).add_product(product, quantity, options)

非常非常简单！

我可以使用现有的 oscar oscar-api 对象模型来实现单项购物篮吗？

Can I use the existing oscar oscar-api object model to implement a single-item only basket?

python

django

django-oscar