/**
  * Create Instuments in $data
  * @param $data : array containing basic instruments to create
  * @return void
  */
 protected function create_instrument(array $data)
 {
     if ($data != []) {
         foreach ($data as $d) {
             Instrument::create(['name' => $d]);
         }
     }
 }
 /**
  * Store a newly created resource in storage.
  *
  * @return Response
  */
 public function store(Request $request)
 {
     $validator = $this->validator($request->all());
     if ($validator->fails()) {
         Flash::error('Impossible d\'ajouter cet instrument.');
         return Redirect::back()->withErrors($validator->errors());
     }
     $instru = Instrument::create(['name' => $request->name]);
     Modification::create(['table' => 'instruments', 'user_id' => Auth::user()->id, 'message' => 'added instrument "' . $request->name . '"']);
     Flash::success('L\'instrument a bien été créé !');
     return Redirect::back();
 }