public function actionKemasancreate()
 {
     $model = new Kemasan();
     $this->layout = $this->CheckSession();
     if ($model->load(Yii::$app->request->post()) && $model->save()) {
         return $this->redirect(['warehouse/kemasanindex', 'id' => $model->Kemasan_ID]);
     } else {
         $id = $model->getLastIdKemasan();
         $model->Kemasan_ID = $id + 1;
         return $this->render('kemasan/create', ['model' => $model]);
     }
 }