function onUpdate()
{
global $app, $conf;
// Check if record is existing already
$duplicate_mx = $app->db->queryOneRecord("SELECT * FROM dns_rr WHERE zone = " . $app->functions->intval($this->dataRecord["zone"]) . " AND name = '" . $app->db->quote($this->dataRecord["name"]) . "' AND type = '" . $app->db->quote($this->dataRecord["type"]) . "' AND data = '" . $app->db->quote($this->dataRecord["data"]) . "' AND id != " . $app->functions->intval($this->dataRecord["id"]) . " AND " . $app->tform->getAuthSQL('r'));
if (is_array($duplicate_mx) && !empty($duplicate_mx)) {
$app->error($app->tform->wordbook["duplicate_mx_record_txt"]);
}
parent::onUpdate();
}
