public static function getInstance($config = null, $className = null, $dbName = null)
{
if (!self::$instance) {
self::$instance = new Pdo($config);
} else {
if (Request::isLongServer()) {
self::$instance->ping();
}
}
if ($className) {
self::$instance->setClassName($className);
}
if ($dbName) {
self::$instance->setDBName($dbName);
}
return self::$instance;
}
public function add($attr)
{
$this->useDb();
return $this->_db->replace($attr, \array_keys(\get_object_vars($attr)));
}
