add description

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@26954 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/TradeCondition.py

@@ -69,6 +69,9 @@ class TradeCondition(Path, Transformation):
                       )
 
     def updateAggregatedAmountList(self, context, **kw):
+      '''
+        updates exisiting movement and returns new if any
+      '''
       existing_movement_list = context.getMovementList()
       aggregated_amount_list = self.getAggregatedAmountList(context = context,
           **kw)