anonymous). * * @param string|int $id * @return int|boolean if validated, the id as an int, otherwise false */ public static function id( $id ) { $result = false; if ( is_numeric( $id ) ) { $id = intval( $id ); //if ( $id > 0 ) { if ( $id >= 0 ) { // 0 => anonymous $result = $id; } } return $result; } /** * Returns an array of blog_ids for current blogs. * @return array of int with blog ids */ public static function get_blogs() { global $wpdb; $result = array(); if ( is_multisite() ) { $blogs = $wpdb->get_results( $wpdb->prepare( "SELECT blog_id FROM $wpdb->blogs WHERE site_id = %d AND archived = '0' AND spam = '0' AND deleted = '0' ORDER BY registered DESC", $wpdb->siteid ) ); if ( is_array( $blogs ) ) { foreach( $blogs as $blog ) { $result[] = $blog->blog_id; } } } else { $result[] = get_current_blog_id(); } return $result; } public static function get_group_tree( &$tree = null ) { global $wpdb; $group_table = _groups_get_tablename( 'group' ); if ( $tree === null ) { $tree = array(); $root_groups = $wpdb->get_results( "SELECT group_id FROM $group_table WHERE parent_id IS NULL" ); if ( $root_groups ) { foreach( $root_groups as $root_group ) { $group_id = Groups_Utility::id( $root_group->group_id ); $tree[$group_id] = array(); } } self::get_group_tree( $tree ); } else { foreach( $tree as $group_id => $nodes ) { $children = $wpdb->get_results( $wpdb->prepare( "SELECT group_id FROM $group_table WHERE parent_id = %d", Groups_Utility::id( $group_id ) ) ); foreach( $children as $child ) { $tree[$group_id][$child->group_id] = array(); } self::get_group_tree( $tree[$group_id] ); } } return $tree; } public static function render_group_tree( &$tree, &$output ) { $output .= '

'; foreach( $tree as $group_id => $nodes ) { $output .= '
• '; $group = Groups_Group::read( $group_id ); if ( $group ) { $output .= $group->name; } if ( !empty( $nodes ) ) { self::render_group_tree( $nodes, $output ); } $output .= '
'; } $output .= '

'; } /** * Compares the two object's names, used for groups and * capabilities, i.e. Groups_Group and Groups_Capability can be compared * if both are of the same class. Otherwise this will return 0. * * @param Groups_Group|Groups_Capability $o1 * @param Groups_Group|Groups_Capability $o2 must match the class of $o1 * @return number */ public static function cmp( $o1, $o2 ) { $result = 0; if ( $o1 instanceof Groups_Group && $o2 instanceof Groups_Group ) { $result = strcmp( $o1->name, $o2->name ); } else if ( $o1 instanceof Groups_Capability && $o2 instanceof Groups_Capability ) { $result = strcmp( $o1->capability->capability, $o2->capability->capability ); } return $result; } }