private function processModifiers(QC $q)
{
$sql = '';
if ($groupBy = $q->getModifier('groupBy')) {
$sql .= ' GROUP BY ' . $this->escapeSqlName($groupBy[0]);
}
if ($orderBy = $q->getModifier('orderBy')) {
$sql .= ' ORDER BY ' . $this->escapeSqlName($orderBy[0]);
}
if ($q->getModifier('one')) {
$sql .= ' LIMIT 1';
} elseif ($limit = $q->getModifier('limit')) {
if (count($limit) > 1) {
$limit[0] = implode(', ', $limit);
}
$sql .= ' LIMIT ' . $limit[0];
}
return $sql;
}