public function accessRules()
{
return [['allow', 'roles' => ['admin']], ['allow', 'actions' => ['index'], 'roles' => ['Delivery.DeliveryBackend.Index']], ['allow', 'actions' => ['create'], 'roles' => ['Delivery.DeliveryBackend.Create']], ['allow', 'actions' => ['update', 'sortable', 'inline'], 'roles' => ['Delivery.DeliveryBackend.Update']], ['allow', 'actions' => ['delete', 'multiaction'], 'roles' => ['Delivery.DeliveryBackend.Delete']], ['deny']];
}