public function deny()
    {
        $app = Application::getFacadeApplication();
        $this->fvIsApproved = false;
        $this->save();
        $fve = new FileVersionEvent($this);
        $app->make(EventDispatcherInterface::class)->dispatch('on_file_version_deny', $fve);
        $app->make('cache/request')->delete('file/version/approved/' . $this->getFileID());
    }