public function action_logout()
{
Kohana::$log->add(Kohana::DEBUG, 'Executing Controller_Auth::action_logout');
$this->a1->logout();
Kohana::$log->add('ACCESS', 'Successful logout made by user.');
Message::instance()->info(Kohana::message('a2', 'logout.success'));
if (!$this->_internal) {
$this->request->redirect(Route::get('admin')->uri());
}
}