def form_valid(self, form):
response = super().form_valid(form)
order = self.object
try:
order.user = self.request.user
except ValueError:
order.user = None
order.save()
session = Session.objects.get(session_key=self.request.session.session_key)
cart_products = Cart.objects.filter(session=session)
products = []
order_products = []
for item in cart_products:
if item.product.amount >= item.qty:
product = item.product
qty = item.qty
product.amount -= qty
products.append(product)
order_product = OrderProduct(order=order, product=product, qty=qty)
order_products.append(order_product)
OrderProduct.objects.bulk_create(order_products)
Product.objects.bulk_update(products, ('amount',))
cart_products.delete()
return response
def form_valid(self, form):
response = super().form_valid(form)
order = self.object
# оптимально:
# цикл сам ничего не создаёт, не обновляет, не удаляет
# цикл работает только с объектами в памяти
# и заполняет два списка: products и order_products
try:
order.user = self.request.user
except ValueError:
order.user = None
order.save()
cart_products = Cart.objects.all()
products = []
order_products = []
for item in cart_products:
product = item.product
qty = item.qty
product.amount -= qty
products.append(product)
order_product = OrderProduct(order=order, product=product, qty=qty)
order_products.append(order_product)
# массовое создание всех товаров в заказе
OrderProduct.objects.bulk_create(order_products)
# массовое обновление остатка у всех товаров
Product.objects.bulk_update(products, ('amount', ))
# массовое удаление всех товаров в корзине
cart_products.delete()
return response
def form_valid(self, form):
response = super().form_valid(form)
order = self.object
# оптимально:
# цикл сам ничего не создаёт, не обновляет, не удаляет
# цикл работает только с объектами в памяти
# и заполняет два списка: products и order_products
basket_products = Basket.objects.all()
products = []
order_products = []
for item in basket_products:
product = item.product
amount = item.amount
product.amount -= amount
products.append(product)
order_product = OrderProduct(order=order,
product=product,
amount=amount)
order_products.append(order_product)
# массовое создание всех товаров в заказе
OrderProduct.objects.bulk_create(order_products)
# массовое обновление остатка у всех товаров
Product.objects.bulk_update(products, ('amount', ))
# массовое удаление всех товаров в корзине
basket_products.delete()
return response
def post(self, request, *args, **kwargs):
data = request.data
object = Order.objects.create(name=data['name'],
address=data['address'],
phone=data['phone'])
cart_products = Cart.objects.all()
products = []
order_products = []
for item in cart_products:
product = item.product
qty = item.qty
product.amount -= qty
products.append(product)
order_product = OrderProduct(order=object,
product=product,
qty=qty)
order_products.append(order_product)
# массовое создание всех товаров в заказе
OrderProduct.objects.bulk_create(order_products)
# массовое обновление остатка у всех товаров
Product.objects.bulk_update(products, ('amount', ))
# массовое удаление всех товаров в корзине
cart_products.delete()
return Response({"message": "Заказ создан"}, status=200)
def form_valid(self, form):
response = super().form_valid(form)
order = self.object
cart_products = Cart.objects.all()
products = []
order_products = []
if self.request.user.is_authenticated:
user = self.request.user
order.user = user
order.save()
for item in cart_products:
product = item.product
qty = item.qty
product.amount -= qty
products.append(product)
order_product = OrderProduct(order=order, product=product, qty=qty)
order_products.append(order_product)
OrderProduct.objects.bulk_create(order_products)
Product.objects.bulk_update(products, ('amount', ))
cart_products.delete()
return response
def form_valid(self, form):
response = super().form_valid(form)
order = self.object
# оптимально:
# цикл сам ничего не создаёт, не обновляет, не удаляет
# цикл работает только с объектами в памяти
# и заполняет два списка: products и order_products
cart_products = Basket.objects.all()
products = []
order_products = []
for item in cart_products:
product = item.product
qty = item.qty
product.amount -= qty
products.append(product)
order_product = OrderProduct(order=order, product=product, qty=qty)
order_products.append(order_product)
OrderProduct.objects.bulk_create(order_products)
Product.objects.bulk_update(products, ('amount', ))
cart_products.delete()
return response