/**
  * Bootstrap the application services.
  *
  * @return void
  */
 public function boot()
 {
     //
     Movement::created(function ($movement) {
         $i = $movement->item;
         $i->quantity += $movement->quantity;
         $movement->result_quantity = $i->quantity;
         $movement->save();
         $i->save();
     });
 }