Add the callback "sync" for Connection.

git-svn-id: https://svn.erp5.org/repos/neo/branches/prototype3@225 71dcc9de-d417-0410-9af5-da40c76e7ee4

neo/client/Storage.py

@@ -187,4 +187,6 @@ class Storage(BaseStorage.BaseStorage,
     def history(self, oid, version, length=1, filter=None):
         return self.app.history(oid, version, length, filter)
 
+    def sync(self):
+        self.app.sync()
 

neo/client/app.py

@@ -877,3 +877,6 @@ class Application(object):
         for conn in self.em.getConnectionList():
             conn.close()
     close = __del__
+
+    def sync(self):
+        self._waitMessage()

neo/client/handler.py

@@ -397,9 +397,11 @@ class ClientEventHandler(EventHandler):
                 # ZODB required a dict with oid as key, so create it
                 oids = {}
                 for oid in oid_list:
-                    oids[oid] = 1
-                    if app.mq_cache.has_key(oid):
+                    oids[oid] = tid
+                    try:
                         del app.mq_cache[oid]
+                    except KeyError:
+                        pass
                 if app._db is not None:
                     app._db.invalidate(tid, oids)
             finally: