function MenuTreeStorage::loadTreeData

Overrides MenuTreeStorageInterface::loadTreeData

File

core/lib/Drupal/Core/Menu/MenuTreeStorage.php, line 847

Class

MenuTreeStorage

Provides a menu tree storage using the database.

Namespace

Code

public function loadTreeData($menu_name, MenuTreeParameters $parameters) {
    $tree_cid = "tree-data:{$menu_name}:" . serialize($parameters);
    $cache = $this->menuCacheBackend
        ->get($tree_cid);
    if ($cache && isset($cache->data)) {
        $data = $cache->data;
        // Cache the definitions in memory so they don't need to be loaded again.
        $this->definitions += $data['definitions'];
        unset($data['definitions']);
    }
    else {
        $links = $this->loadLinks($menu_name, $parameters);
        $data['tree'] = $this->doBuildTreeData($links, $parameters->activeTrail, $parameters->minDepth);
        $data['definitions'] = [];
        $data['route_names'] = $this->collectRoutesAndDefinitions($data['tree'], $data['definitions']);
        $this->menuCacheBackend
            ->set($tree_cid, $data, Cache::PERMANENT, [
            'config:system.menu.' . $menu_name,
        ]);
        // The definitions were already added to $this->definitions in
        // $this->doBuildTreeData()
        unset($data['definitions']);
    }
    return $data;
}