enhance to rollback if any issues occur within the transaction and commit if everything is successful

shared/selene/util/db/transaction.py

@@ -19,7 +19,13 @@ def use_transaction(func):
             prev_autocommit = instance.db.autocommit
             instance.db.autocommit = False
             with instance.db:
-                return_value = func(*args, **kwargs)
+                try:
+                    return_value = func(*args, **kwargs)
+                except:
+                    instance.db.rollback()
+                    raise
+                else:
+                    instance.db.commit()
             instance.db.autocommit = prev_autocommit
 
         return return_value