/**
* Merge Sub Menu
*
* @param Menu $menu
*
* @return static
*/
public function mergeSubMenu(Menu $menu)
{
$name = $menu->getId();
if (array_key_exists($name, $this->subMenus)) {
/** @var $current Menu */
$current = $this->subMenus[$name];
if ($current->conflictsWith($menu)) {
while (array_key_exists($name, $this->subMenus)) {
if (preg_match('/_(\\d+)$/', $name, $m)) {
$name = preg_replace('/_\\d+$/', $m[1]++, $name);
} else {
$name .= '_2';
}
}
$menu->setId($name);
$this->subMenus[$name] = $menu;
} else {
$current->setProperties($menu->getProperties());
foreach ($menu->subMenus as $child) {
$current->mergeSubMenu($child);
}
}
} else {
$this->subMenus[$name] = $menu;
}
return $this->subMenus[$name];
}
