def purchase()

in server/store/views.py [0:0]

• 23 lines of code
• 3 McCabe index (conditional complexity)

    def purchase(self, request, pk):
        product = get_object_or_404(Product, id=pk)
        if product.inventory_count > 0:
            product.inventory_count -= 1
            product.save()
            Transaction.objects.create(
                datetime=timezone.now(), product_id=product, unit_price=product.price
            )
        else:
            log_error(
                "INVENTORY_COUNT_ERROR",
                "A purchase was attempted where there was insufficient inventory to fulfil the order.",
                product,
            )
            raise ProductPurchaseException()

        # If the transaction caused a product to sell out, log an error
        if product.inventory_count == 0:
            log_error(
                "INVENTORY_SOLDOUT_ERROR",
                "A purchase just caused a product to sell out. More inventory will be required.",
                product,
            )

        serializer = ProductSerializer(product)
        return Response(serializer.data)