added AssetService class

src/PimcoreDevkitBundle/Resources/config/services.yml

@@ -13,3 +13,4 @@ services:
     PimcoreDevkitBundle\Service\UserService: ~
     PimcoreDevkitBundle\Service\WorkspaceService: ~
     PimcoreDevkitBundle\Service\DocTypeService: ~
+    PimcoreDevkitBundle\Service\AssetService: ~

src/PimcoreDevkitBundle/Service/AssetService.php

@@ -0,0 +1,57 @@
+<?php
+/**
+ * @date        29/01/2018
+ * @author      Wojciech Peisert <wpeisert@divante.pl>
+ * @copyright   Copyright (c) 2018 DIVANTE (http://divante.pl)
+ */
+
+declare(strict_types=1);
+
+namespace PimcoreDevkitBundle\Service;
+
+use Pimcore\Model\Asset\Folder;
+use Pimcore\Model\Asset;
+
+/**
+ * Class AssetService
+ *
+ * @package PimcoreDevkitBundle\Service
+ */
+class AssetService
+{
+    /**
+     * Returns asset folder. If not existent, creates it.
+     *
+     * @param int $parentId
+     * @param string $key
+     * @return Folder
+     * @internal param string $name
+     */
+    public function getOrCreateAssetFolder($parentId, $key)
+    {
+        /** @var Asset $parent */
+        $parent = Asset::getById($parentId);
+        $key    = Asset\Service::getValidKey($key, 'folder');
+        $path = $parent->getRealFullPath() . '/' . $key;
+
+        $folder = Folder::getByPath($path);
+        if (!$folder instanceof Folder) {
+            $folder = Folder::create(
+                $parentId,
+                [
+                    'parentId'         => $parentId,
+                    'creationDate'     => time(),
+                    'userOwner'        => 0,
+                    'userModification' => 0,
+                    'path'             => $key,
+                    'published'        => true,
+                    'type'             => 'folder',
+                    'locked'           => true,
+                    'filename'         => $key,
+                ]
+            );
+        }
+
+        return $folder;
+    }
+}