ThemeController::actionUpdate PHP Method

    public function actionUpdate($id)
    {
        $model = $this->loadModel($id);
        // Uncomment the following line if AJAX validation is needed
        // $this->performAjaxValidation($model);
        if (isset($_POST['Theme'])) {
            $model->attributes = $_POST['Theme'];
            if ($model->save()) {
                $this->redirect(array('admin'));
            }
        }
        $this->render('update', array('model' => $model));
    }