Summernote Image Upload

[Dejmienwp]

Why this is not working ?
I wanna upload img summernote on folder where is ID - POST ...

I will try $id, $rows['id'] - always i have code " /169160a0-693f-489c-b5cb-0b979cb4aa68"

    /**
    * image upload from WYSIWYG
    */
    public function postEditorUpload($id = null)
    {
        header('Content-type: application/json');
        $rows = $this->db('blog')->where('id', $id)->oneArray();
        $dir    = $this->_uploads.'/'.$rows['id'];
        $error    = null;

        if (!file_exists($dir)) {
            mkdir($dir, 0777, true);
        }

        if (isset($_FILES['file']['tmp_name'])) {
            $img = new \Inc\Core\Lib\Image;

            if ($img->load($_FILES['file']['tmp_name'])) {
                $imgPath = $dir."/".time().'.'.$img->getInfos('type');
                $img->save($imgPath);
                echo json_encode(['status' => 'success', 'result' => url($imgPath)]);
            } else {
                $error = $this->lang('editor_upload_fail');
            }

            if ($error) {
                echo json_encode(['status' => 'failure', 'result' => $error]);
            }
        }
        exit();
    }