<?php

class Qs_Auth extends Qs_Sys_Auth
{
    protected $_siteChangeLogin = false;

    public function authenticate(Zend_Auth_Adapter_Interface $adapter)
    {
        if ($this->isSiteChangeLogin()) {
            $adapter->setSiteChangeLogin();
        }
        $result = parent::authenticate($adapter);
        if ($result->isValid() && $this->isSiteChangeLogin()) {
            $storageData = $this->getStorage()->read();
            $storageData['isSiteChangeLogin'] = true;
            $this->getStorage()->write($storageData);
        }
        return $result;
    }

    public function setSiteChangeLogin($flag = true)
    {
        $this->_siteChangeLogin = $flag;
        return $this;
    }

    public function isSiteChangeLogin()
    {
        return (bool) $this->_siteChangeLogin;
    }

}