diff -r 000000000000 -r b97547f5f1fa sobjects/hooks.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sobjects/hooks.py	Wed Nov 05 15:52:50 2008 +0100
@@ -0,0 +1,37 @@
+"""various library content hooks
+
+:organization: Logilab
+:copyright: 2001-2008 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
+"""
+__docformat__ = "restructuredtext en"
+
+from cubicweb.server.hooksmanager import Hook
+from cubicweb.server.pool import PreCommitOperation
+
+class AddUpdateEUserHook(Hook):
+    """ensure user logins are stripped"""
+    events = ('before_add_entity', 'before_update_entity',)
+    accepts = ('EUser',)
+    
+    def call(self, session, entity):
+        if 'login' in entity and entity['login']:
+            entity['login'] = entity['login'].strip()
+
+
+class AutoDeleteBookmark(PreCommitOperation):
+    def precommit_event(self):
+        session = self.session
+        if not self.beid in session.query_data('pendingeids', ()):
+            if not session.unsafe_execute('Any X WHERE X bookmarked_by U, X eid %(x)s',
+                                          {'x': self.beid}, 'x'):
+                session.unsafe_execute('DELETE Bookmark X WHERE X eid %(x)s',
+                                       {'x': self.beid}, 'x')
+        
+class DelBookmarkedByHook(Hook):
+    """ensure user logins are stripped"""
+    events = ('after_delete_relation',)
+    accepts = ('bookmarked_by',)
+    
+    def call(self, session, subj, rtype, obj):
+        AutoDeleteBookmark(session, beid=subj)