Heavily refactored the property metadata attribute logic

The new method is much more universal and fixes issue #862

src/ApiPlatform/DocumentedAPIProperties/PropertyMetadataFactory.php

@@ -0,0 +1,73 @@
+<?php
+/*
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ *  Copyright (C) 2019 - 2025 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/>.
+ */
+
+declare(strict_types=1);
+
+
+namespace App\ApiPlatform\DocumentedAPIProperties;
+
+use ApiPlatform\Metadata\ApiProperty;
+use ApiPlatform\Metadata\Property\Factory\PropertyMetadataFactoryInterface;
+use ReflectionClass;
+use Symfony\Component\DependencyInjection\Attribute\AsDecorator;
+
+/**
+ * This decorator adds the virtual properties defined by the DocumentedAPIProperty attribute to the property metadata
+ * which then get picked up by the openapi schema generator
+ */
+#[AsDecorator('api_platform.metadata.property.metadata_factory')]
+class PropertyMetadataFactory implements PropertyMetadataFactoryInterface
+{
+    public function __construct(private PropertyMetadataFactoryInterface $decorated)
+    {
+    }
+
+    public function create(string $resourceClass, string $property, array $options = []): ApiProperty
+    {
+        $metadata = $this->decorated->create($resourceClass, $property, $options);
+
+        //Only become active in the context of the openapi schema generation
+        if (!isset($options['schema_type'])) {
+            return $metadata;
+        }
+
+        if (!class_exists($resourceClass)) {
+            return $metadata;
+        }
+
+        $refClass = new ReflectionClass($resourceClass);
+        $attributes = $refClass->getAttributes(DocumentedAPIProperty::class);
+
+        //Look for the DocumentedAPIProperty attribute with the given property name
+        foreach ($attributes as $attribute) {
+            /** @var DocumentedAPIProperty $api_property */
+            $api_property = $attribute->newInstance();
+            //If attribute not matches the property name, skip it
+            if ($api_property->property !== $property) {
+                continue;
+            }
+
+            //Return the virtual property
+            return $api_property->toAPIProperty();
+        }
+
+        return $metadata;
+    }
+}