View file File name : PriceInvoiceCalculator.php Content :<?php /* * This file is part of the Kimai time-tracking app. * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace App\Invoice\Calculator; use App\Invoice\CalculatorInterface; use App\Invoice\InvoiceItemInterface; /** * A calculator that sums up the invoice item records by price. */ class PriceInvoiceCalculator extends AbstractSumInvoiceCalculator implements CalculatorInterface { protected function calculateSumIdentifier(InvoiceItemInterface $invoiceItem): string { if (null !== $invoiceItem->getFixedRate()) { return 'fixed_' . $invoiceItem->getFixedRate(); } return 'hourly_' . $invoiceItem->getHourlyRate(); } /** * @return string */ public function getId(): string { return 'price'; } }