public function actions()
{
return array_merge(parent::actions(), ['index' => ['class' => 'yii\\rest\\IndexAction', 'modelClass' => $this->modelClass, 'checkAccess' => [$this, 'checkAccess'], 'prepareDataProvider' => function ($action) {
$m = new FormulaSearch();
$params = \Yii::$app->getRequest()->getQueryParams();
$dataProvider = $m->search($params);
return $dataProvider;
}]]);
}
