757       case 'votereset':

   758         if ( !$this->perms->get_permissions('history_rollback_extra') )

   759           return 'Denied!';

   760         

   761         // pull existing vote data

   762         $q = $db->sql_query('SELECT delvotes, delvote_ips FROM ' . table_prefix . "pages WHERE urlname = '$this->page_id' AND namespace = '$this->namespace';");

   763         if ( !$q )

   764           $db->_die();

   765         

   766         if ( $db->numrows() < 1 )

   767           return array(

   768               'success' => false,

   769               'error' => 'page_not_exist',

   770               'action' => $log_entry['action']

   771             );

   772           

   773         list($curr_delvotes, $curr_delvote_ips) = $db->fetchrow_num();

   774         $db->free_result();

   775         

   776         // merge with existing votes

   777         $old_delvote_ips = unserialize($log_entry['page_text']);

   778         $new_delvote_ips = unserialize($curr_delvote_ips);

   779         $new_delvote_ips['u'] = array_unique(array_merge($new_delvote_ips['u'], $old_delvote_ips['u']));

   780         $new_delvote_ips['ip'] = array_unique(array_merge($new_delvote_ips['ip'], $old_delvote_ips['ip']));

   781         $new_delvotes = count($new_delvote_ips['ip']);

   782         $new_delvote_ips = $db->escape(serialize($new_delvote_ips));

   783         

   784         // update pages table

   785         $q = $db->sql_query('UPDATE ' . table_prefix . "pages SET delvotes = $new_delvotes, delvote_ips = '$new_delvote_ips' WHERE urlname = '$this->page_id' AND namespace = '$this->namespace';");

   786         

   787         $cache->purge('page_meta');

   788         

   789         return array(

   790             'success' => true,

   791             'dateline' => $dateline,

   792             'action' => $log_entry['action']

   793           );

   794         break;