/**
  * Save request inputs into account's incoming transfer
  * @param  \Illuminate\Http\Request $request
  * @param  \App\Account $account Account
  * @param  \App\Operation|null $operation Operation
  * @return void
  */
 public function saveIncomingTransfer(Request $request, Account $account, $operation)
 {
     if (is_null($operation)) {
         $operation = new Transfer();
     }
     $operation->fill(['from_account_id' => $request->get('from_account_id'), 'to_account_id' => $account->id, 'name' => $request->get('name'), 'amount' => $request->get('amount'), 'date' => Carbon::createFromFormat('d/m/Y', $request->get('date'))->startOfDay()])->save();
 }