See scandipwa/scandipwa#4896 Fixed the issue when downloadable produc…

…t with changed sku crashed the order page

Model/LinkRepository.php

@@ -0,0 +1,23 @@
+<?php
+/**
+ * ScandiPWA - Progressive Web App for Magento
+ *
+ * Copyright © Scandiweb, Inc. All rights reserved.
+ * See LICENSE for license details.
+ *
+ * @license OSL-3.0 (Open Software License ("OSL") v. 3.0)
+ */
+declare(strict_types=1);
+
+namespace ScandiPWA\SalesGraphQl\Model;
+
+use Magento\Downloadable\Model\LinkRepository as SourceLinkRepository;
+
+class LinkRepository extends SourceLinkRepository {
+    public function getListById(int $id): array
+    {
+        /** @var \Magento\Catalog\Model\Product $product */
+        $product = $this->productRepository->getById($id);
+        return $this->getLinksByProduct($product);
+    }
+}

Model/OrderItem/OptionsProcessor.php

@@ -13,7 +13,7 @@
 
 use Magento\SalesGraphQl\Model\OrderItem\OptionsProcessor as SourceOptionsProcessor;
 use Magento\Sales\Api\Data\OrderItemInterface;
-use Magento\Downloadable\Api\LinkRepositoryInterface;
+use ScandiPWA\SalesGraphQl\Model\LinkRepository;
 
 /**
  * Process order item options to format for GraphQl output
@@ -46,7 +46,7 @@ class OptionsProcessor extends SourceOptionsProcessor
     protected $linkRepository;
 
     public function __construct(
-        LinkRepositoryInterface $linkRepository
+        LinkRepository $linkRepository
     ) {
         $this->linkRepository = $linkRepository;
     }
@@ -152,12 +152,13 @@ protected function processBundleOptions(array $bundleOptions)
      * @param $product
      * @param array $links
      */
-    protected function processDownloadableLinksOptions($product, array $links) {
-        // Get the product downloadable links
-        $productLinks = $this->linkRepository->getList($product->getSku());
-        $linksOutput = [ 'label' => 'Links', 'linkItems' => []];
+    protected function processDownloadableLinksOptions($product, array $links)
+    {
+        $productLinks = $this->linkRepository->getListById((int)$product->getProductId());
+
+        $linksOutput = ['label' => 'Links', 'linkItems' => []];
 
-        foreach($productLinks as $link) {
+        foreach ($productLinks as $link) {
             if (in_array($link->getId(), $links)) {
                 $linksOutput['linkItems'][] = $link->getTitle();
             }