JHtmlAccess/usergroups

static JHtmlAccess::usergroups($name, $selected)

jimport( 'joomla.html.html.access' );

        public static function usergroups($name, $selected)
        {
                static $count;
 
                $count++;
 
                $db = &JFactory::getDbo();
                $db->setQuery(
                        'SELECT a.*, COUNT(DISTINCT b.id) AS level' .
                        ' FROM #__usergroups AS a' .
                        ' LEFT JOIN `#__usergroups` AS b ON a.lft > b.lft AND a.rgt < b.rgt' .
                        ' GROUP BY a.id' .
                        ' ORDER BY a.lft ASC'
                );
                $groups = $db->loadObjectList();
 
                // Check for a database error.
                if ($db->getErrorNum()) {
                        JError::raiseNotice(500, $db->getErrorMsg());
                        return null;
                }
 
                $html = array();
 
                $html[] = '<ul class="checklist usergroups">';
 
                for ($i=0, $n=count($groups); $i < $n; $i++)
                {
                        $item = &$groups[$i];
 
                        // Setup  the variable attributes.
                        $eid = $count.'group_'.$item->id;
                        // don't call in_array unless something is selected
                        $checked = '';
                        if ($selected) {
                                $checked = in_array($item->id, $selected) ? ' checked="checked"' : '';
                        }
                        $rel = ($item->parent_id > 0) ? ' rel="'.$count.'group_'.$item->parent_id.'"' : '';
 
                        // Build the HTML for the item.
                        $html[] = '     <li>';
                        $html[] = '             <input type="checkbox" name="'.$name.'[]" value="'.$item->id.'" id="'.$eid.'"';
                        $html[] = '                             '.$checked.$rel.' />';
                        $html[] = '             <label for="'.$eid.'">';
                        $html[] = '             '.str_repeat('<span class="gi">|&mdash;</span>', $item->level).$item->title;
                        $html[] = '             </label>';
                        $html[] = '     </li>';
                }
                $html[] = '</ul>';
 
                return implode("\n", $html);
        }