Transaction comments and user log for limited services

Added transactino comments and userlog enteries for maximum services.
Currently if basic transaction or custominvoice limits are reached
nothing happens. If main service gets paid, child service gets paid
to maximum limit.

Signed-off-by: Erkki Hietaranta <erkki.hietaranta@gmail.com>

utils/businesslogic.py

@@ -316,14 +316,12 @@ def _check_transaction_pays_custominvoice(transaction):
                     )
                 if inlimit == True:
                     BusinessLogic._service_paid_by_transaction(subscription, transaction, invoice.days)
-                    transaction.comment = transaction.comment + f" by {invoice}"
-                    transaction.save()
                 else: 
                     subscription.user.log(
                         f"Payment of {invoice} would extend {subscription.service} paid to date over maximum by {inlimit} days. Transaction is not used"
                     )
-                    transaction.comment = (
-                        f"Service {subscription.service} paid untill date would get over maximum limit by {inlimit} days. Transaction is not used"
+                    transaction.comment += (
+                        f"Service {subscription.service} paid untill date would get over maximum limit by {inlimit} days. Transaction is not used\n"
                     )
                     transaction.save()                     
             else:
@@ -390,8 +388,8 @@ def _updatesubscription(user, subscription, servicesubscriptions):
                         f"Payment would extend {subscription.service} paid to date over maximum by {inlimit} days. {transaction} is not used"
                     )
                     transaction.user = subscription.user
-                    transaction.comment = (
-                        f"Service {subscription.service} paid untill date would get over maximum limit by {inlimit} days. Transaction is not used"
+                    transaction.comment += (
+                        f"Service {subscription.service} paid untill date would get over maximum limit by {inlimit} days. Transaction is not used\n"
                     )
                     transaction.save()
             else: