public function get_List_Page()
 {
     if (!Helpers::isAdmin()) {
         return redirect('/');
     }
     $specialites = Specialite::all();
     return response()->view('specialite/specialiteList', ['specialites' => $specialites]);
 }
 public function get_Update_Page($parcours)
 {
     if (!Helpers::isAdmin()) {
         return redirect('/');
     }
     $specialites = Specialite::all();
     return response()->view('parcours/ParcoursModification', ['parcours' => $parcours, 'specialites' => $specialites]);
 }