Add the CategoryAttribute data type

src/Attribute/DataType/Attribute.php

@@ -37,7 +37,7 @@ public function getEshopModel(): EshopAttributeModel
      */
     public function getTitle(): string
     {
-        return (string)$this->attribute->getRawFieldData('oxtitle');
+        return (string)($this->attribute->getRawFieldData('oxtitle') ?? $this->attribute->getTitle());
     }
 
     public static function getModelClass(): string

src/Category/DataType/CategoryAttribute.php

@@ -0,0 +1,61 @@
+<?php
+
+/**
+ * Copyright © OXID eSales AG. All rights reserved.
+ * See LICENSE file for license details.
+ */
+
+declare(strict_types=1);
+
+namespace OxidEsales\GraphQL\Storefront\Category\DataType;
+
+use OxidEsales\Eshop\Application\Model\Attribute as EshopAttributeModel;
+use OxidEsales\GraphQL\Base\DataType\ShopModelAwareInterface;
+use OxidEsales\GraphQL\Storefront\Attribute\DataType\Attribute;
+use TheCodingMachine\GraphQLite\Annotations\Field;
+use TheCodingMachine\GraphQLite\Annotations\Type;
+
+/**
+ * @Type()
+ */
+final class CategoryAttribute implements ShopModelAwareInterface
+{
+    /** @var EshopAttributeModel */
+    private $attribute;
+
+    public function __construct(EshopAttributeModel $attribute)
+    {
+        $this->attribute = $attribute;
+    }
+
+    public function getEshopModel(): EshopAttributeModel
+    {
+        return $this->attribute;
+    }
+
+    /**
+     * @Field()
+     */
+    public function getAttribute(): Attribute
+    {
+        return new Attribute($this->attribute);
+    }
+
+    /**
+     * @Field()
+     *
+     * @return string[]
+     */
+    public function getValues(): array
+    {
+        return $this->attribute->getValues();
+    }
+
+    /**
+     * @return class-string
+     */
+    public static function getModelClass(): string
+    {
+        return EshopAttributeModel::class;
+    }
+}

src/Category/Infrastructure/Category.php

@@ -0,0 +1,43 @@
+<?php
+
+/**
+ * Copyright © OXID eSales AG. All rights reserved.
+ * See LICENSE file for license details.
+ */
+
+declare(strict_types=1);
+
+namespace OxidEsales\GraphQL\Storefront\Category\Infrastructure;
+
+use OxidEsales\Eshop\Application\Model\Attribute as EshopAttributeModel;
+use OxidEsales\Eshop\Application\Model\AttributeList as EshopAttributeListModel;
+use OxidEsales\GraphQL\Storefront\Category\DataType\Category as CategoryDataType;
+use OxidEsales\GraphQL\Storefront\Category\DataType\CategoryAttribute as CategoryAttributeDataType;
+
+use function count;
+use function is_iterable;
+
+final class Category
+{
+    /**
+     * @return CategoryAttributeDataType[]
+     */
+    public function getAttributes(CategoryDataType $category): array
+    {
+        /** @var EshopAttributeListModel $categoryAttributes */
+        $categoryAttributes = $category->getEshopModel()->getAttributes();
+
+        if (!is_iterable($categoryAttributes) || count($categoryAttributes) === 0) {
+            return [];
+        }
+
+        $attributes = [];
+
+        /** @var EshopAttributeModel $attribute */
+        foreach ($categoryAttributes as $key => $attribute) {
+            $attributes[$key] = new CategoryAttributeDataType($attribute);
+        }
+
+        return $attributes;
+    }
+}

src/Category/Service/RelationService.php

@@ -21,11 +21,13 @@
 use OxidEsales\GraphQL\Storefront\Product\DataType\Product;
 use OxidEsales\GraphQL\Storefront\Product\DataType\ProductFilterList;
 use OxidEsales\GraphQL\Storefront\Product\DataType\Sorting as ProductSorting;
+use OxidEsales\GraphQL\Storefront\Category\Infrastructure\Category as CategoryInfrastructure;
 use OxidEsales\GraphQL\Storefront\Product\Service\Product as ProductService;
 use OxidEsales\GraphQL\Storefront\Shared\DataType\Seo;
 use TheCodingMachine\GraphQLite\Annotations\ExtendType;
 use TheCodingMachine\GraphQLite\Annotations\Field;
 use TheCodingMachine\GraphQLite\Types\ID;
+use OxidEsales\GraphQL\Storefront\Category\DataType\CategoryAttribute;
 
 /**
  * @ExtendType(class=Category::class)
@@ -38,12 +40,17 @@ final class RelationService
     /** @var CategoryService */
     private $categoryService;
 
+    /** @var CategoryInfrastructure */
+    private $categoryInfrastructure;
+
     public function __construct(
         ProductService $productService,
-        CategoryService $categoryService
+        CategoryService $categoryService,
+        CategoryInfrastructure $categoryInfrastructure
     ) {
         $this->productService = $productService;
         $this->categoryService = $categoryService;
+        $this->categoryInfrastructure = $categoryInfrastructure;
     }
 
     /**
@@ -127,4 +134,14 @@ private function getCategoryById(ID $id): ?Category
 
         return $result;
     }
+
+    /**
+     * @Field()
+     *
+     * @return CategoryAttribute[]
+     */
+    public function getAttributes(Category $category): array
+    {
+        return $this->categoryInfrastructure->getAttributes($category);
+    }
 }