JeroenNoten\LaravelAdminLte\Menu\Filters\SubmenuFilter::transform PHP Метод

    public function transform($item, Builder $builder)
    {
        if (isset($item['submenu'])) {
            $item['submenu'] = $builder->transformItems($item['submenu']);
            $item['submenu_open'] = $item['active'];
            $item['submenu_classes'] = $this->makeSubmenuClasses();
            $item['submenu_class'] = implode(' ', $item['submenu_classes']);
        }
        return $item;
    }