def askObjectHistory(self, conn, oid, first, last):
if first >= last:
raise ProtocolError('invalid offsets')
app = self.app
if app.tm.loadLocked(oid):
raise DelayEvent
history_list = app.dm.getObjectHistory(oid, first, last - first)
if history_list is None:
p = Errors.OidNotFound(dump(oid))
else:
p = Packets.AnswerObjectHistory(oid, history_list)
conn.answer(p)
def askObjectUndoSerial(self, conn, ttid, ltid, undone_tid, oid_list):
app = self.app
findUndoTID = app.dm.findUndoTID
getObjectFromTransaction = app.tm.getObjectFromTransaction
object_tid_dict = {}
for oid in oid_list:
current_serial, undo_serial, is_current = findUndoTID(oid, ttid,
ltid, undone_tid, getObjectFromTransaction(ttid, oid))
if current_serial is None:
p = Errors.OidNotFound(dump(oid))
break
object_tid_dict[oid] = (current_serial, undo_serial, is_current)
else:
p = Packets.AnswerObjectUndoSerial(object_tid_dict)
conn.answer(p)
def askObjectUndoSerial(self, conn, ttid, ltid, undone_tid, oid_list):
app = self.app
findUndoTID = app.dm.findUndoTID
getObjectFromTransaction = app.tm.getObjectFromTransaction
object_tid_dict = {}
for oid in oid_list:
r = findUndoTID(oid, ttid, ltid, undone_tid,
getObjectFromTransaction(ttid, oid))
if r:
if not r[0]:
p = Errors.OidNotFound(dump(oid))
break
object_tid_dict[oid] = r
else:
p = Packets.AnswerObjectUndoSerial(object_tid_dict)
conn.answer(p)
