/**
  * Display a listing of the resource.
  *
  * @return \Illuminate\Http\Response
  */
 public function index()
 {
     $bahagian = Bahagian::all();
     foreach ($bahagian as $key => $bhg) {
         if ($bhg->bahagian_id != 0) {
             $bahagian[$key]->parent = Bahagian::where('id', $bhg->bahagian_id)->first(['nama', 'id']);
         }
     }
     return $bahagian;
 }