function invoke($request)
{
//save
global $_SESSION, $config;
session_start();
if(isset($request["password"]) and $request["password"]===$config["password"] )
{
$_SESSION["password"] = $request["password"];
}
if(isset($request["save"]) and $_SESSION["password"]===$config["password"])
{
ArticleModel::save($request);
}
$view = new HtmlView($request);
$view->put();
}
