protected function _logout()
{
$this->_check_login();
// If login as feature is used
if ($u = UserSession::get('main_user')) {
UserSession::set('user', $u);
UserSession::erase('main_user');
Alert::once('warning', 'Logged in as ' . $u['username'], Url::base(''));
}
UserSession::destroy();
Alert::once('warning', 'You have been logged out!', Url::base('auth/login'));
}
