Add a comment about the implication of deleting the XMLMatrix.newCellContent() method

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@3182 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/Delivery.py

@@ -68,17 +68,24 @@ class TempDeliveryCell(DeliveryCell):
   def activate(self):
     return self
 
+
 # XXX FIXME: to be deleted
 class XMLMatrix(TempXMLMatrix):
 
   def newCellContent(self, id,**kw):
     """
-          This method can be overriden
+      If you delete this method, please check the code of the method
+      ERP5/Document/InventoryLine.newCellContent() and delete it.
+      If nothing has changed from the date I wrote this comment, the
+      behaviour of InventoryLine will be the same without
+      InventoryLine.newCellContent(), because Inventory line is a subclass
+      of Delivery which is a subclass of XMLMatrix (Kev).
     """
     new_temp_object = TempDeliveryCell(id)
     self._setObject(id, new_temp_object)
     return self.get(id)
 
+
 # XXX FIXME: to be deleted
 class Group(Implicit):
   """
@@ -212,6 +219,7 @@ class Group(Implicit):
 InitializeClass(Group)
 #allow_class(Group)
 
+
 class Delivery(XMLObject):
     """
         Each time delivery is modified, it MUST launch a reindexing of