public function initializeTree()
{
if (!isset(self::$tree)) {
$root = aPageTable::retrieveBySlugWithTitles('/');
$rootInfo['id'] = $root['id'];
$rootInfo['lft'] = $root['lft'];
$rootInfo['rgt'] = $root['rgt'];
$rootInfo['title'] = $root['title'];
$rootInfo['slug'] = $root['slug'];
$tree = $root->getTreeInfo(false);
$rootInfo['children'] = $tree;
self::$tree = array($rootInfo);
self::createHashTable(self::$tree, $rootInfo);
}
}
