/**
* Setup categories tree using Elgg menu
*
* @param string $hook Equals 'register'
* @param string $type Equals 'menu:categories'
* @param array $return An array of category menu items
* @param array $params Additional parameters passed to elgg_view_menu()
* 'entity' Entity
* 'depth' Depth of the tree
* 'limit' Number of subcategories to display
* 'icons' Show icons
* 'collapse' Collapse by default
*
* @return array
*/
public function setupCategoriesMenu($hook, $type, $return, $params)
{
elgg_require_js('framework/categories/menu');
$entity = elgg_extract('entity', $params, elgg_get_site_entity());
// container group or site or category
if (!$entity instanceof ElggEntity) {
return $return;
}
unset($params['name']);
$defaults = array('depth' => false, 'icons' => true, 'collapse' => true, 'limit' => false, 'badge' => true);
$params = array_merge($defaults, $params);
$root_nodes = array($entity->guid);
$tree = new TreeNode($entity, null, null, $params);
$nodes = $tree->toArray($params['depth']);
if (!$entity instanceof ElggSite) {
if (!elgg_in_context('categories-manage')) {
if ($entity instanceof ElggGroup && $this->config->allowsGroupCategories() || $entity instanceof ElggObject) {
// Add site wide categories if we are in a group context with group categories enabled
// or we are in an object context
$site = elgg_get_site_entity();
$root_nodes[] = $site->guid;
$site_tree = new TreeNode($site, null, null, $params);
$site_nodes = $site_tree->toArray($params['depth']);
$nodes = array_merge($site_nodes, $nodes);
}
}
}
if (!empty($nodes)) {
foreach ($nodes as $node_opts) {
$node_guid = elgg_extract('node_guid', $node_opts);
$parent_guid = elgg_extract('parent_guid', $node_opts);
$node = get_entity($node_guid);
$parent = get_entity($parent_guid);
if (!$node instanceof ElggEntity || in_array($node->guid, $root_nodes)) {
continue;
}
$has_children = elgg_extract('has_children', $node_opts);
$item_params = array_merge($params, array('entity' => $node, 'has_children' => $has_children));
$return[] = ElggMenuItem::factory(array('name' => "category:{$node->guid}", 'parent_name' => $parent && !in_array($parent->guid, $root_nodes) ? "category:{$parent->guid}" : null, 'text' => elgg_view('framework/categories/node', $item_params), 'href' => false, 'priority' => $node->priority ? (int) $node->priority : 999, 'data' => $item_params));
}
}
if (elgg_in_context('categories-manage')) {
// Adds an empty subcategory form
$return[] = ElggMenuItem::factory(array('name' => 'placeholder', 'text' => elgg_view('framework/categories/placeholder', array('container' => $entity->guid)), 'href' => false, 'priority' => 1000, 'data-guid' => $node->guid));
}
return $return;
}
<?php
use hypeJunction\Categories\TreeNode;
$container_guid = get_input('container_guid');
$container = get_entity($container_guid);
if (!$container) {
$container = elgg_get_site_entity();
}
$options = get_input('options', array('limit' => false));
$tree = new TreeNode($container, null, null, $options);
$nodes = array();
$children = $tree->getChildren();
foreach ($children as $child) {
$category = $child->getEntity();
if (!$category) {
continue;
}
$nodes[] = array('id' => $category->guid, 'text' => $category->getDisplayName(), 'icon' => $category->icontime ? $category->getIconURL('tiny') : false, 'children' => $child->hasChildren(), 'li_attr' => array(), 'a_attr' => array('href' => $category->getURL()));
}
echo json_encode($nodes);
