protected function getSortTokens(PlFilter $uf)
{
$toks = $uf->getNameTokens();
$scores = array();
// If there weren't any sort tokens, we shouldn't sort by score, sort by NULL instead
if (count($toks) == 0) {
return 'NULL';
}
foreach ($toks as $sub => $token) {
$scores[] = XDB::format('SUM(' . $sub . '.score + IF (' . $sub . '.token = {?}, 5, 0) )', $token);
}
return implode(' + ', $scores);
}
