public function actionIndex()
 {
     $dataProvider = new ActiveDataProvider(['query' => Job::find(), 'pagination' => ['pageSize' => 1]]);
     $model = new DynamicModel(['search_keyword', 'search_location', 'search_type']);
     $model->addRule('search_type', 'integer')->addRule('search_location', 'string', ['max' => 128])->addRule('search_keyword', 'string', ['max' => 128]);
     if ($model->load(Yii::$app->request->post())) {
         switch ($model->search_type) {
             case Lookup::item_code('SearchType', 'Organizations'):
                 return $this->redirect(['organization/index', 'search_keyword' => $model->search_keyword]);
                 break;
             case Lookup::item_code('SearchType', 'Opportunities'):
                 return $this->redirect(['job/index', 'search_keyword' => $model->search_keyword]);
                 break;
             default:
                 throw new NotFoundHttpException('Your search:' . $model->search_keyword);
                 break;
         }
     }
     return $this->render('index', ['model' => $model, 'dataProvider' => $dataProvider]);
 }