Redirect after update

Please help,

How to redirect to previous page?


public function actionUpdate($id)

    {

        $model = $this->loadModel('FieldOption', $id);


        if (r()->isPostRequest) {

            $model->setAttributes(r()->getPost('FieldOption'));

            if ($model->save()) {

                user()->setFlash('success', Yii::t("main", "Option") . ' «' . $model->title . '» ' . Yii::t("main", "update"));

                $this->redirect(['index']);

            }

        }


        $this->render('update', ['model' => $model]);

    }

previous (referer) page:


admin/field.shtml?FieldOption%5Bid%5D=&FieldOption%5Btype_id%5D=1&FieldOption%5Btitle%5D=&FieldOption%5Burl%5D=&FieldOption_page=1&language=ru

Thanks!




$this->redirect(Yii::app()->request->urlReferrer);