fix excepton if user has no orders.

django/didgeridoo/webshop/views.py

@@ -169,36 +169,37 @@ def profile(request):
     currency_name = ""
     person = Person.objects.get(user=request.user)
     orders = Order.objects.filter(user=request.user)
-    orders_list = list(orders)
-    for idx1, order in enumerate(orders_list):
-        # get all items in the Order:
-        order_positions = OrderPosition.objects.filter(order=order)
-        if (order_positions.count()) > 0:
-            order_position_list = list(order_positions)
-            for idx2, order_position in enumerate(order_position_list):
-                # get currencyname to display:
-                if order.exchange_rate is not None:
-                    print('order.exchange_rate', order.exchange_rate, order.exchange_rate.id)
-                    # get price of position in order and append to a list:
-                    rate = ExchangeRate.objects.get(id=order.exchange_rate.id)
-                    order_position.price_in_chf = round(
-                        rate.exchange_rate_to_chf * order_position.price_in_chf,
-                        2)
-                    currency_name = order.exchange_rate
-                else:
-                    currency_name = 'CHF'
-                totalprice_list.append(order_position.price_in_chf)
-                order_position_list[idx2] = order_position
-                total = sum(totalprice_list)
-            currency_list.append(currency_name)
-            total_list.append(total)
-            order_positions_count = order_positions.count()
-        order_positions_count_list.append(order_positions_count)
-    orders_list[idx1] = order
-    order_list_zip = zip(orders_list,
-                         order_positions_count_list,
-                         total_list,
-                         currency_list)
+    if orders:
+        orders_list = list(orders)
+        for idx1, order in enumerate(orders_list):
+            # get all items in the Order:
+            order_positions = OrderPosition.objects.filter(order=order)
+            if (order_positions.count()) > 0:
+                order_position_list = list(order_positions)
+                for idx2, order_position in enumerate(order_position_list):
+                    # get currencyname to display:
+                    if order.exchange_rate is not None:
+                        print('order.exchange_rate', order.exchange_rate, order.exchange_rate.id)
+                        # get price of position in order and append to a list:
+                        rate = ExchangeRate.objects.get(id=order.exchange_rate.id)
+                        order_position.price_in_chf = round(
+                            rate.exchange_rate_to_chf * order_position.price_in_chf,
+                            2)
+                        currency_name = order.exchange_rate
+                    else:
+                        currency_name = 'CHF'
+                    totalprice_list.append(order_position.price_in_chf)
+                    order_position_list[idx2] = order_position
+                    total = sum(totalprice_list)
+                currency_list.append(currency_name)
+                total_list.append(total)
+                order_positions_count = order_positions.count()
+            order_positions_count_list.append(order_positions_count)
+        orders_list[idx1] = order
+        order_list_zip = zip(orders_list,
+                             order_positions_count_list,
+                             total_list,
+                             currency_list)
     # assert False
     return render(request, 'registration/profile.html',
                   {'person': person,