Next major version 2 with PHP 8.1, Symfony 6, Tabler UI, 2FA ... (#2902)

src/Invoice/Calculator/WeeklyInvoiceCalculator.php

@@ -9,22 +9,19 @@
 
 namespace App\Invoice\Calculator;
 
+use App\Entity\ExportableItem;
 use App\Invoice\CalculatorInterface;
-use App\Invoice\InvoiceItemInterface;
 
 /**
  * A calculator that sums up the invoice item records per week.
  */
-class WeeklyInvoiceCalculator extends AbstractSumInvoiceCalculator implements CalculatorInterface
+final class WeeklyInvoiceCalculator extends AbstractSumInvoiceCalculator implements CalculatorInterface
 {
-    protected function calculateSumIdentifier(InvoiceItemInterface $invoiceItem): string
+    protected function calculateSumIdentifier(ExportableItem $invoiceItem): string
     {
         return $invoiceItem->getBegin()->format('W');
     }
 
-    /**
-     * @return string
-     */
     public function getId(): string
     {
         return 'weekly';