In OpenERP first we create users and then validate to the trigger. Users register then status will not be sent if not necessary. In usres form type is user_presence.

Use this function show in given below

 def updates(self, user_presence=True):
  
        presence = self.search([('user_id', '=', self._uid)], limit=1)
        send_notification = True
        values = {
            'last_poll': time.strftime(DEFAULT_SERVER_DATETIME_FORMAT),
            'status': presence and presence.status or 'offline'
        }
        if not presence:  # create a new presence for the user
            values['status'] = 'online'
            values['user_id'] = self._uid
            self.create(values)
        else:  
            if user_presence:
                values['last_presence'] = time.strftime(DEFAULT_SERVER_DATETIME_FORMAT)
                values['status'] = 'online'
            else:
                threshold = datetime.datetime.now() - datetime.timedelta(seconds=AWAY_TIMER)
                if datetime.datetime.strptime(presence.last_presence, DEFAULT_SERVER_DATETIME_FORMAT) < threshold:
                    values['status'] = 'away'
            send_notification = presence.status != values['status']
            # write only if the last_poll is passed TIMEOUT, or if the status has changed
            delta = datetime.datetime.utcnow() - datetime.datetime.strptime(presence.last_poll, DEFAULT_SERVER_DATETIME_FORMAT)
            if delta > datetime.timedelta(seconds=TIMEOUT) or send_notification:
                # Hide transaction serialization errors, which can be ignored, the presence update is not essential
                with tools.mute_logger('openerp.sql_db'):
                    presence.write(values)
        self.env.cr.commit() # TODO : check if still necessary
        if send_notification: 
            self.env['bus.bus'].sendone((self._cr.dbname, 'bus.presence'), {'id': self._uid, 'im_status': values['status']})
       
        if random.random() < 0.01:
            self.check_users_disconnection()
        return True