Jarves\Controller\Admin\BackendController::getCustomJsAction PHP Метод

    public function getCustomJsAction(ParamFetcher $paramFetcher)
    {
        $bundle = $paramFetcher->get('bundle');
        $code = $paramFetcher->get('code');
        $onLoad = $paramFetcher->get('onLoad');
        $module = preg_replace('[^a-zA-Z0-9_-]', '', $bundle);
        $code = preg_replace('[^a-zA-Z0-9_-]', '', $code);
        $onLoad = preg_replace('[^a-zA-Z0-9_-]', '', $onLoad);
        $bundle = $this->jarves->getBundle($module);
        $file = $bundle->getPath() . '/Resources/public/admin/js/' . $code . '.js';
        if (!file_exists($file)) {
            $content = "contentCantLoaded_" . $onLoad . "('{$file}');\n";
        } else {
            $content = file_get_contents($file);
            $content .= "\n";
            $content .= "contentLoaded_" . $onLoad . '();' . "\n";
        }
        $response = new Response($content);
        $response->headers->set('Content-Type', 'text/javascript');
        return $response;
    }