# HG changeset patch
# User Sylvain Thénault <sylvain.thenault@logilab.fr>
# Date 1251397371 -7200
# Node ID 82e0b12054a8e45d778c1993596a991fee3e90c2
# Parent  5d09f157add0fafdc42ed91c0e3e730b3da50284
fix potential session cache effect: entity's rset may have been emptied

diff -r 5d09f157add0 -r 82e0b12054a8 sobjects/notification.py
--- a/sobjects/notification.py	Thu Aug 27 13:01:17 2009 +0200
+++ b/sobjects/notification.py	Thu Aug 27 20:22:51 2009 +0200
@@ -56,7 +56,10 @@
 class RenderAndSendNotificationView(PreCommitOperation):
     """delay rendering of notification view until precommit"""
     def precommit_event(self):
-        if self.view.rset and self.view.rset[0][0] in self.session.transaction_data.get('pendingeids', ()):
+        view = self.view
+        if view.rset is not None and not view.rset:
+            return # entity added and deleted in the same transaction (cache effect)
+        if view.rset and view.rset[0][0] in self.session.transaction_data.get('pendingeids', ()):
             return # entity added and deleted in the same transaction
         self.view.render_and_send(**getattr(self, 'viewargs', {}))