function rewind()
{
if ($this->numRows()) {
$this->db->dataSeek($this, 0);
}
$this->pos = 0;
$this->currentRow = null;
}
/**
* Cache page existence for performance
*
* @param DatabaseBase $db
* @param ResultWrapper $res
*/
function preprocessResults($db, $res)
{
$batch = new LinkBatch();
foreach ($res as $row) {
$batch->add($row->namespace, $row->title);
$batch->addObj($this->getRedirectTarget($row));
}
$batch->execute();
// Back to start for display
if ($res->numRows() > 0) {
// If there are no rows we get an error seeking.
$db->dataSeek($res, 0);
}
}