public function __construct($dbInstanceKey = null)
{
if ($dbInstanceKey === null) {
$this->dbInstanceKey = MySqlDbManager::getDefaultInstanceKey();
} else {
$this->dbInstanceKey = $dbInstanceKey;
}
$this->init();
}
private static function getCallerDbInstanceKey()
{
$backtrace = debug_backtrace();
if (!empty($backtrace[2]['object']) and method_exists($backtrace[2]['object'], 'getDbInstanceKey')) {
return $backtrace[2]['object']->getDbInstanceKey();
} else {
return MySqlDbManager::getDefaultInstanceKey();
}
}
