Fix: Kots with product quantity = 0 were allowed. So blank kots could be added.

barker/barker/routers/voucher/update.py

@@ -103,7 +103,11 @@ def update_route(
                         status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
                         detail="Happy hour products are not balanced.",
                     )
-            for k in (k for k in data.kots if k.id_ is None and len(k.inventories) > 0):
+            for k in (
+                k
+                for k in data.kots
+                if k.id_ is None and len([i for i in k.inventories if round(i.quantity, 2) != 0]) > 0
+            ):
                 need_to_print_kot = True
                 code = db.execute(select(func.coalesce(func.max(Kot.code), 0) + 1)).scalar_one()
                 kot = Kot(item.id, code, item.food_table_id, now, item.user_id)