func findSenderReceiver(db querier, msg *pandora.Message, create bool) (sid int64, rid int64, err error) { senderName, receiverName := msg.Sender(), msg.Receiver() sid, err = findInbox(db, senderName, create) if err != nil { return } rid, err = findInbox(db, receiverName, create) if err != nil { return } return }