/**
* CONCAT for oracle allows only the concatenation of two values
* @param object $a_values
* @param object $a_allow_null [optional]
* @return
*/
public function concat($a_values, $a_allow_null = true)
{
if (count($a_values) <= 2) {
return parent::concat($a_values, false);
}
$first = true;
foreach ($a_values as $field_info) {
if (!$first) {
$concat_value = parent::concat(array(array($concat_value, $concat_type), array($field_info[0], $field_info[1])), false);
} else {
$first = false;
$concat_value = $field_info[0];
$concat_type = $field_info[1];
}
}
return $concat_value;
}
