App\services\PaymentService::bulk PHP Method

    public function bulk($ids, $action, $params = [])
    {
        if ($action == 'refund') {
            if (!$ids) {
                return 0;
            }
            $payments = $this->getRepo()->findByPublicIdsWithTrashed($ids);
            $successful = 0;
            foreach ($payments as $payment) {
                if (Auth::user()->can('edit', $payment)) {
                    $amount = !empty($params['amount']) ? floatval($params['amount']) : null;
                    if ($accountGateway = $payment->account_gateway) {
                        $paymentDriver = $accountGateway->paymentDriver();
                        if ($paymentDriver->refundPayment($payment, $amount)) {
                            $successful++;
                        }
                    }
                }
            }
            return $successful;
        } else {
            return parent::bulk($ids, $action);
        }
    }

 /**
  * @return mixed
  */
 public function bulk()
 {
     $action = Input::get('action');
     $amount = Input::get('amount');
     $ids = Input::get('public_id') ? Input::get('public_id') : Input::get('ids');
     $count = $this->paymentService->bulk($ids, $action, ['amount' => $amount]);
     if ($count > 0) {
         $message = Utils::pluralize($action == 'refund' ? 'refunded_payment' : $action . 'd_payment', $count);
         Session::flash('message', $message);
     }
     return redirect()->to('payments');
 }