Added tests for various label services.

src/Services/LabelSystem/Barcodes/BarcodeContentGenerator.php

@@ -76,7 +76,7 @@ final class BarcodeContentGenerator
     public function get1DBarcodeContent(AbstractDBElement $target): string
     {
         $prefix = $this->classToString(self::PREFIX_MAP, $target);
-        $id = sprintf('%04d', $target->getID());
+        $id = sprintf('%04d', $target->getID() ?? 0);
         return $prefix  . $id;
     }
 

src/Services/LabelSystem/Barcodes/BarcodeRedirector.php

@@ -0,0 +1,69 @@
+<?php
+/**
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ * Copyright (C) 2019 - 2020 Jan Böhmer (https://github.com/jbtronics)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+namespace App\Services\LabelSystem\Barcodes;
+
+
+use App\Entity\Parts\PartLot;
+use Doctrine\ORM\EntityManagerInterface;
+use Doctrine\ORM\EntityNotFoundException;
+use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
+
+final class BarcodeRedirector
+{
+    private $urlGenerator;
+    private $em;
+
+
+    public function __construct(UrlGeneratorInterface $urlGenerator, EntityManagerInterface $entityManager)
+    {
+        $this->urlGenerator = $urlGenerator;
+        $this->em = $entityManager;
+    }
+
+    /**
+     * Determines the URL to which the user should be redirected, when scanning a QR code
+     * @param  string  $type The type of the element that was scanned (e.g. 'part', 'lot', etc.)
+     * @param  int  $id The ID of the element that was scanned
+     * @return string The URL to which should be redirected.
+     * @throws EntityNotFoundException
+     */
+    public function getRedirectURL(string $type, int $id): string
+    {
+        switch ($type) {
+            case 'part':
+                return $this->urlGenerator->generate('app_part_show', ['id' => $id]);
+            case 'lot':
+                //Try to determine the part to the given lot
+                $lot = $this->em->find(PartLot::class, $id);
+                if ($lot === null) {
+                    throw new EntityNotFoundException();
+                }
+
+                return $this->urlGenerator->generate('app_part_show', ['id' => $lot->getPart()->getID()]);
+
+            case 'location':
+                return $this->urlGenerator->generate('part_list_store_location', ['id' => $id]);
+
+            default:
+                throw new \InvalidArgumentException('Unknown $type: ' . $type);
+        }
+    }
+}