old_contents: from django.shortcuts import render
  from rest_framework.views import APIView
  from rest_framework.response import Response
  from rest_framework import status
  from rest_framework.permissions import IsAuthenticated
  
  class ShopAPIView(APIView):
      permission_classes = (IsAuthenticated,)
  
  
  class OrdersView(ShopAPIView):
      """
      Place an order. Create the "order" record with general informations, create the "order_details" records with
      the details of the order. During this transaction any stamp earned by the user is added to the database and
      at the end voucher(s) are created if there are enough stamps available for that user.
      """
      def post(self, request, format=None):
          return Response({'success': True})
  
new_contents: from django.shortcuts import render
  from rest_framework.views import APIView
  from rest_framework.response import Response
  from rest_framework import status
  from rest_framework.permissions import IsAuthenticated
  from django.db import transaction
  
  class ShopAPIView(APIView):
      permission_classes = (IsAuthenticated,)
  
  class OrdersView(ShopAPIView):
      """
      Place an order. Create the "order" record with general informations, create the "order_details" records with
      the details of the order. During this transaction any stamp earned by the user is added to the database and
      at the end voucher(s) are created if there are enough stamps available for that user.
      """
      def post(self, request, format=None):
          with transaction.atomic():
              return Response({'success': True})
  
subject: Add transaction support to the orders view