/**
* If the current menu item holds a submenu, we recursively build again a
* new menu group.
*
* @param array|null $group Current item's submenus array.
* @return string rendered menu content
*/
public function render($group = null)
{
$this->config('content.url', Router::url($this->config('content.url')));
$content = $this->formatTemplate('content', $this->config('content'));
if ($group) {
$this->config(array_shift($this->_config['childConfig']));
$menu = new MenuGroup([$this->config()], $this->_here);
$content .= $menu->render($group);
$this->_active = $this->_active || $menu->active();
}
return $content;
}
