protected function getData($field, $order, $limit, $offset)
 {
     Wind::import('SRV:forum.vo.PwThreadSo');
     $so = new PwThreadSo();
     $time = Pw::getTime();
     $so->setDisabled(0);
     $field['tids'] && $so->setTid(explode(' ', $field['tids']));
     if ($field['usernames']) {
         $usernames = explode(' ', $field['usernames']);
         foreach ($usernames as &$username) {
             $username = trim($username);
         }
         $users = Wekit::load('user.PwUser')->fetchUserByName($usernames);
         $uids = array_keys($users);
         if ($uids) {
             $so->setAuthorId($uids);
         } else {
             return array();
         }
     }
     $field['keywords'] && $so->setKeywordOfTitle(trim($field['keywords']));
     $field['mapFid'] && $so->setFid($field['mapFid']);
     //修正后的fids
     $field['special'] && $so->setSpecial($field['special']);
     $field['istop'] && $so->setTopped($field['istop']);
     $field['ispic'] && $so->setHasImage($field['ispic']);
     //$field['isattach'] && $so->setIsattach($field['isattach']);
     $field['isdigest'] && $so->setDigest($field['isdigest']);
     $field['createdtime'] && $so->setCreateTimeStart($time - intval($field['createdtime']));
     $field['createdtime'] && $so->setCreateTimeEnd($time);
     $field['posttime'] && $so->setLastpostTimeStart($time - intval($field['posttime']));
     $field['posttime'] && $so->setLastpostTimeEnd($time);
     switch ($order) {
         case '2':
             $so->orderbyLastPostTime(false);
             break;
         case '1':
             $so->orderbyCreatedTime(false);
             break;
         case '3':
             $so->orderbyReplies(false);
             break;
         case '4':
             $so->orderbyHits(false);
             break;
         case '5':
             $so->orderbyLike(false);
             break;
     }
     $list = Wekit::load('forum.PwThread')->searchThread($so, $limit, $offset);
     return $this->_buildSignKey($list, $field['ishighlight']);
 }