diff -r 39437617f3f0 -r 97505b798975 server/sources/pyrorql.py
--- a/server/sources/pyrorql.py	Fri Apr 29 16:34:31 2011 +0200
+++ b/server/sources/pyrorql.py	Mon May 02 15:06:20 2011 +0200
@@ -437,7 +437,7 @@
         cu = session.pool[self.uri]
         cu.execute('SET %s WHERE X eid %%(x)s' % ','.join(relations), kwargs)
         self._query_cache.clear()
-        entity.clear_all_caches()
+        entity.cw_clear_all_caches()
 
     def delete_entity(self, session, entity):
         """delete an entity from the source"""
@@ -453,8 +453,8 @@
                    {'x': self.eid2extid(subject, session),
                     'y': self.eid2extid(object, session)})
         self._query_cache.clear()
-        session.entity_from_eid(subject).clear_all_caches()
-        session.entity_from_eid(object).clear_all_caches()
+        session.entity_from_eid(subject).cw_clear_all_caches()
+        session.entity_from_eid(object).cw_clear_all_caches()
 
     def delete_relation(self, session, subject, rtype, object):
         """delete a relation from the source"""
@@ -463,8 +463,8 @@
                    {'x': self.eid2extid(subject, session),
                     'y': self.eid2extid(object, session)})
         self._query_cache.clear()
-        session.entity_from_eid(subject).clear_all_caches()
-        session.entity_from_eid(object).clear_all_caches()
+        session.entity_from_eid(subject).cw_clear_all_caches()
+        session.entity_from_eid(object).cw_clear_all_caches()
 
 
 class RQL2RQL(object):