public function deleteAlbumItem($share_id, $is_update = true)
 {
     $share_id = (int) $share_id;
     if (!$share_id) {
         return false;
     }
     $rec = FDB::fetchFirst('SELECT * FROM ' . FDB::table('album_rec') . ' WHERE ashare_id = ' . $share_id);
     if ($rec) {
         FDB::delete('album_rec', 'ashare_id = ' . $share_id);
         FDB::query('UPDATE ' . FDB::table('share_rec') . " SET rec_count = rec_count - 1 WHERE share_id = " . $rec['share_id']);
         $res = FDB::query('SELECT share_id FROM ' . FDB::table('share_rec') . ' WHERE rec_count = 0');
         $id_list = array();
         while ($data = FDB::fetch($res)) {
             $id_list[$data['share_id']] = $data['share_id'];
         }
         if (count($id_list) > 0) {
             $ids = implode(',', $id_list);
             $res = FDB::query('SELECT share_id FROM ' . FDB::table('share') . ' WHERE share_id IN (' . $ids . ')');
             while ($data = FDB::fetch($res)) {
                 unset($id_list[$data['share_id']]);
             }
             foreach ($id_list as $id) {
                 $key = getDirsById($id);
                 clearDir(PUBLIC_ROOT . './upload/share/' . $key, true);
             }
         }
         FDB::delete('share_rec', 'share_id = ' . $rec['share_id'] . ' AND rec_count = 0');
     }
     if ($is_update) {
         $album_id = (int) FDB::resultFirst('SELECT album_id FROM ' . FDB::table('album_share') . ' WHERE share_id = ' . $share_id);
         FDB::delete('album_share', '	share_id = ' . $share_id);
         AlbumService::updateAlbumByShare($album_id, $share_id, false);
         AlbumService::updateAlbum($album_id);
     }
     FS('Share')->deleteShare($share_id);
 }