public function actionCreate($catid, $pid = 0)
 {
     $model = new Dict();
     $model->parent_id = $pid;
     $model->category_id = $catid;
     if ($model->load(Yii::$app->request->post()) && $model->save()) {
         return $this->redirect(['index', 'pid' => $pid, 'catid' => $catid]);
     } else {
         $locals = [];
         $locals['model'] = $model;
         $locals['parent'] = $this->findModel($pid);
         $locals['parents'] = Dict::getParents($pid);
         $locals['category'] = DictCategory::findOne($catid);
         return $this->render('create', $locals);
     }
 }