public function getIndex(TariffRepository $tariffRepository)
 {
     $parents = ParentModel::all();
     $tariffs = $tariffRepository->getTariffForSelect();
     return view('parents.parentsIndex', compact('parents', 'tariffs'));
 }
 /**
  * @return \Illuminate\Support\Collection
  */
 public function getParentsForSelect()
 {
     return ParentModel::all()->pluck('fio', 'id');
 }