Order/EventListener/OrderListener.php
protected function handleContentChange(SaleInterface $sale)
    {
        $changed = parent::handleContentChange($sale);

        if (null !== $margin = $this->marginCalculator->calculateSale($sale)) {
            $amount = $margin->getAmount();
        } else {
            $amount = 0;
        }

        if ($sale->getMarginTotal() != $amount) {
            $sale->setMarginTotal($amount);
            $changed = true;
        }

        if ($sale->getItemsCount() != $count = $sale->getItems()->count()) {
            $sale->setItemsCount($count);
            $changed = true;
        }

        return $changed;
    }
protected function handleContentChange(SaleInterface $sale)
    {
        $changed = parent::handleContentChange($sale);

        if (null !== $margin = $this->marginCalculator->calculateSale($sale)) {
            $amount = $margin->getAmount();
        } else {
            $amount = 0;
        }

        if ($sale->getMarginTotal() != $amount) {
            $sale->setMarginTotal($amount);
            $changed = true;
        }

        if ($sale->getItemsCount() != $count = $sale->getItems()->count()) {
            $sale->setItemsCount($count);
            $changed = true;
        }

        return $changed;
    }
@inheritDoc

@param OrderInterface $sale