protected function orderConversations($sn, $lastId)
 {
     $oc = new Model_OrderConversation();
     $lastId = intval($lastId);
     return $oc->fetchPagedList(1, 999999, array(Db::RAW_WHERE_KEY => 'id>' . $lastId, 'sn' => $sn), 'id ASC')['rows'];
 }
 public function orderConversationAction()
 {
     $this->view->sn = $sn = trim($this->_getParam('sn', ''));
     $lastId = intval(trim($this->_getParam('lastId', 0)));
     $getConversation = $this->_getParam('getConversation');
     if (empty($getConversation)) {
         return;
     }
     $oc = new Model_OrderConversation();
     $lastId = intval($lastId);
     $result = $oc->fetchPagedList(1, 999999, array(Db::RAW_WHERE_KEY => 'id>' . $lastId, 'sn' => $sn), 'id ASC')['rows'];
     $arp = new AjaxResponse();
     $arp->setStatus(AjaxResponse::STATUS_OK);
     $arp->setMessage($result);
     $this->json($arp);
 }