A lot of things.

Service/Club/CreatorService.php

@@ -0,0 +1,99 @@
+<?php
+
+namespace RomhackPlaza\Master\Service\Club;
+
+use RomhackPlaza\Master\Entity\Club;
+use RomhackPlaza\Master\XF\Entity\Forum;
+use XF\App;
+use XF\Entity\Node;
+use XF\Entity\User;
+use XF\Http\Upload;
+use XF\Service\AbstractService;
+use XF\Service\ValidateAndSavableTrait;
+use XF\Util\File;
+
+class CreatorService extends AbstractService
+{
+    use ValidateAndSavableTrait;
+
+    /**
+     * @var Club
+     */
+    protected $club;
+
+    /**
+     * @var Upload
+     */
+    protected $bannerUpload;
+
+    /**
+     * @var User
+     */
+    protected $user;
+
+    public function __construct(App $app, User $creator)
+    {
+        parent::__construct($app);
+        $this->club = $this->em()->create('RomhackPlaza\Master:Club');
+        $this->setUser($creator);
+        $this->setupDefaults();
+    }
+
+    protected function setupDefaults()
+    {
+        $this->club->club_state = 'moderated';
+    }
+
+    public function getClub()
+    {
+        return $this->club;
+    }
+
+    public function getUser()
+    {
+        return $this->user;
+    }
+
+    public function setUser(User $user)
+    {
+        $this->user = $user;
+        $this->club->user_id = $this->user->user_id;
+    }
+
+    public function setContent(string $title, string $description )
+    {
+        $this->club->title = $title;
+        $this->club->description = $description;
+    }
+
+    public function setBannerUpload(?Upload $upload = null)
+    {
+        if ($upload) {
+            $upload->requireImage();
+            if($upload->isValid()){
+                $this->bannerUpload = $upload;
+            }
+        }
+    }
+
+    protected function _validate()
+    {
+        $this->club->preSave();
+        return $this->club->getErrors();
+    }
+
+    protected function _save()
+    {
+        $this->club->save();
+
+        if( $this->bannerUpload ){
+            $path = 'data://club_banners/' . $this->club->club_id . '.jpg';
+            if( File::copyFileToAbstractedPath($this->bannerUpload->getFileWrapper()->getFilePath(), $path) ){
+                $this->club->banner_date = \XF::$time;
+                $this->club->save();
+            }
+        }
+
+        return $this->club;
+    }
+}