add modules and upload file

kernel/modules/user/service/UserService.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace kernel\modules\user\service;
+
+use app\helpers\Debug;
+use kernel\modules\user\models\User;
+use kernel\FormModel;
+
+class UserService
+{
+
+    public function create(FormModel $form_model): false|User
+    {
+        $model = new User();
+        $model->username = $form_model->getItem('username');
+        $model->email = $form_model->getItem('email');
+        $model->password_hash = password_hash($form_model->getItem('password'), PASSWORD_DEFAULT);
+        if ($model->save()){
+            return $model;
+        }
+
+        return false;
+    }
+
+    public function update(FormModel $form_model, User $user): false|User
+    {
+        $user->username = $form_model->getItem('username');
+        $user->email = $form_model->getItem('email');
+        $user->password_hash = password_hash($form_model->getItem('password'), PASSWORD_DEFAULT);
+        if ($user->save()){
+            return $user;
+        }
+
+        return false;
+    }
+
+    public static function createUsernameArr(): array
+    {
+        foreach (User::all()->toArray() as $user) {
+
+            $userArr[$user['id']] = $user['username'];
+        }
+        if (!empty($userArr)) {
+            return $userArr;
+        }
+        return [];
+    }
+
+}