/**
* Registers a function to be called on auth login
*
* This function will be called when the user needs a specific role
* for an action and has not yet logged in.
* It could be used to show a login screen or somehow inform user
* that the action needs a special role.
*
* @param mixed $handler function or an array of class=>method
*
* @return null
*/
public static function registerLoginHandler($handler)
{
if (is_callable($handler)) {
self::$_loginHandler = $handler;
} else {
Nexista_Error::init('Auth Login Handler Error', NX_ERROR_FATAL);
}
}
