Added dropdowns for quick generating labels for different profiles.

src/Services/LabelSystem/LabelProfileDropdownHelper.php

@@ -0,0 +1,57 @@
+<?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;
+
+
+use App\Entity\LabelSystem\LabelProfile;
+use App\Services\UserCacheKeyGenerator;
+use Doctrine\ORM\EntityManagerInterface;
+use Symfony\Contracts\Cache\ItemInterface;
+use Symfony\Contracts\Cache\TagAwareCacheInterface;
+
+class LabelProfileDropdownHelper
+{
+    private $cache;
+    private $entityManager;
+    private $keyGenerator;
+
+    public function __construct(TagAwareCacheInterface $cache, EntityManagerInterface $entityManager, UserCacheKeyGenerator $keyGenerator)
+    {
+        $this->cache = $cache;
+        $this->entityManager = $entityManager;
+        $this->keyGenerator = $keyGenerator;
+    }
+
+    public function getDropdownProfiles(string $type): array
+    {
+        $secure_class_name = str_replace('\\', '_', LabelProfile::class);
+        $key = 'profile_dropdown_'.$this->keyGenerator->generateKey().'_'.$secure_class_name . '_' . $type;
+
+        $repo = $this->entityManager->getRepository(LabelProfile::class);
+
+        return $this->cache->get($key, function (ItemInterface $item) use ($repo, $type, $secure_class_name) {
+            // Invalidate when groups, a element with the class or the user changes
+            $item->tag(['groups', 'tree_treeview', $this->keyGenerator->generateKey(), $secure_class_name]);
+
+            return $repo->getDropdownProfiles($type);
+        });
+    }
+}