public function add($sqlPartName, $sqlPart, $append = false)
{
if ($sqlPartName == 'select') {
if (is_array($sqlPart)) {
$i = 0;
foreach ($sqlPart as $term) {
$sqlPart[$i] = $this->quoteSelectTerm($term);
$i++;
}
} else {
$sqlPart = $this->quoteSelectTerm($sqlPart);
}
}
return parent::add($sqlPartName, $sqlPart, $append);
}