public static function saveRecord($desk, $client, $status, $accountId)
 {
     $chatConversation = new ChatConversation();
     $channelName = self::getChannelName($desk->_id, $client['openId']);
     $chatConversation->conversation = $channelName;
     $chatConversation->status = $status;
     $chatConversation->desk = ['id' => $desk->_id, 'badge' => $desk->badge, 'email' => $desk->email, 'avatar' => $desk->avatar, 'name' => $desk->name];
     $chatConversation->client = $client;
     $chatConversation->accountId = $accountId;
     $chatConversation->lastChatTime = TimeUtil::msTime();
     if (!$chatConversation->save()) {
         LogUtil::error(['message' => 'save chat conversation failed', 'error' => $chatConversation->errors], 'helpdesk');
         throw new ServerErrorHttpException('save chatConversation failed');
     } else {
         HelpDesk::incClientCount($desk->_id);
     }
     return $chatConversation;
 }