/** * Lists all Category models. * @return mixed */ public function actionIndex() { $tree = Category::sortTree(); return $this->render('index', ['cate' => $tree]); // $searchModel = new CategorySearch(); // $dataProvider = $searchModel->search(Yii::$app->request->queryParams); // return $this->render('index', [ // 'searchModel' => $searchModel, // 'dataProvider' => $dataProvider, // ]); }