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<?php
/**
* @package Sven.Bluege
* @subpackage com_eventgallery
*
* @copyright Copyright (C) 2005 - 2019 Sven Bluege All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
namespace Svenbluege\Component\Eventgallery\Site\Library\Helper;
use Joomla\CMS\Factory;
defined('_JEXEC') or die;
class UserGroups
{
/**
* @var array of id=>name
*/
static $userGroupNames;
static $userGroupPaths;
static $userGroups;
/**
* Returns an array of id=>name
*/
public static function getUserGroupNames()
{
if (self::$userGroupNames == null ) {
$db = Factory::getDbo();
$query = $db->getQuery(true)
->select('a.id AS value, a.title AS text')
->from('#__usergroups AS a');
// Get the options.
$db->setQuery($query);
$objects = $db->loadObjectList();
$userGroupNames = array();
foreach($objects as $object) {
$userGroupNames[$object->value] = $object->text;
}
self::$userGroupNames = $userGroupNames;
}
return self::$userGroupNames;
}
/**
* Resolve an usergroup id into a name
* @param $id
* @return string
*/
public static function getUserGroupName($id) {
$userGroupNames = self::getUserGroupNames();
return $userGroupNames[$id];
}
/**
* Gets the parent groups that a leaf group belongs to in its branch back to the root of the tree
* (including the leaf group id).
*
* @param mixed $groupId An integer or array of integers representing the identities to check.
*
* @return mixed array with the parent user groups.
*
* @since 11.1
*/
public static function getGroupPath($groupId)
{
// Preload all groups
if (empty(self::$userGroups))
{
$db = Factory::getDbo();
$query = $db->getQuery(true)
->select('parent.id, parent.lft, parent.rgt')
->from('#__usergroups AS parent')
->order('parent.lft');
$db->setQuery($query);
self::$userGroups = $db->loadObjectList('id');
}
// Get parent groups and leaf group
if (!isset(self::$userGroupPaths[$groupId]))
{
self::$userGroupPaths[$groupId] = array();
foreach (self::$userGroups as $group)
{
if ($group->lft <= self::$userGroups[$groupId]->lft && $group->rgt >= self::$userGroups[$groupId]->rgt)
{
self::$userGroupPaths[$groupId][] = $group->id;
}
}
}
return self::$userGroupPaths[$groupId];
}
}