public function actionCreate() { $category = new Category(); if ($category->load(Yii::$app->request->post()) && $category->validate()) { $category->save(); Yii::$app->getSession()->setFlash('success', 'You added new category successfully'); return $this->redirect(Yii::$app->urlManager->createUrl('category')); } return $this->render('create', ['category' => $category]); }