public function doFormat($id, $input)
 {
     $tp = TP::findOrFail($id);
     $ordres = $input['ordre'];
     $questions = $tp->questions();
     foreach ($ordres as $id => $ordre) {
         $questions->updateExistingPivot($id, ['ordre' => $ordre], false);
     }
     if (isset($input['break'])) {
         $breaks = $input['break'];
         foreach ($breaks as $id => $value) {
             $questions->updateExistingPivot($id, ['breakafter' => 1], false);
         }
     }
     return true;
 }