/**
* Flush menu tree cache for root page
*
* @param string $event the name of the event
* @param string $type the type of the event
* @param ElggObject $object the object affected
*
* @return void
*/
function pages_tools_cache_handler($event, $type, ElggObject $object)
{
if (!pages_tools_is_valid_page($object)) {
return;
}
$ia = elgg_set_ignore_access(true);
$root_page = pages_tools_get_root_page($object);
pages_tools_flush_tree_html_cache($root_page);
elgg_set_ignore_access($ia);
}
function pages_tools_get_root_page(ElggObject $entity)
{
$result = false;
if (pages_tools_is_valid_page($entity)) {
if (elgg_instanceof($entity, "object", "page_top")) {
$result = $entity;
} elseif (isset($entity->parent_guid)) {
$parent = get_entity($entity->parent_guid);
$result = pages_tools_get_root_page($parent);
}
}
return $result;
}
/**
* Get the options_values array for the edit form parent selector
*
* @param ElggEntity $entity the page entity being edited
*
* @return false|array
*/
function pages_tools_get_parent_selector_options(ElggEntity $entity)
{
if (!pages_tools_is_valid_page($entity)) {
return false;
}
$root_page = pages_tools_get_root_page($entity);
$result = array($root_page->getGUID() => $root_page->title);
$result += pages_tools_get_parent_selector_children($root_page, $entity->getGUID());
return $result;
}
<?php
$entity = elgg_extract('entity', $vars);
if (!pages_tools_is_valid_page($entity)) {
return;
}
$root_page = pages_tools_get_root_page($entity);
$tree_data = pages_tools_get_tree_html_from_cache($root_page);
if ($tree_data !== false) {
echo $tree_data;
return;
}
if (!pages_tools_register_navigation_tree($entity)) {
return;
}
// get the navigation menu
$tree_data = elgg_view_menu('pages_nav', array('class' => 'pages-nav', 'sort_by' => 'priority'));
pages_tools_save_tree_html_to_cache($root_page, $tree_data);
echo $tree_data;
