private function buildSaleDiscountsLinesViews(Model\SaleInterface $sale)
    {
        if (!$sale->hasAdjustments(Model\AdjustmentTypes::TYPE_DISCOUNT)) {
            return;
        }

        foreach ($sale->getAdjustments(Model\AdjustmentTypes::TYPE_DISCOUNT) as $adjustment) {
            $this->view->addDiscount($this->buildDiscountLine($adjustment));
        }
    }