'ids' ) ); if ( ! is_wp_error( $menus ) && ! empty( $menus[0] ) ) { $menu_id = (int) $menus[0]; $ordered_menu_items = wp_get_nav_menu_items( $menu_id ); $menu_item_data = (array) wp_setup_nav_menu_item( get_post( $menu_item_id ) ); // setup the data we need in one pass through the array of menu items $dbids_to_orders = array(); $orders_to_dbids = array(); foreach( (array) $ordered_menu_items as $ordered_menu_item_object ) { if ( isset( $ordered_menu_item_object->ID ) ) { if ( isset( $ordered_menu_item_object->menu_order ) ) { $dbids_to_orders[$ordered_menu_item_object->ID] = $ordered_menu_item_object->menu_order; $orders_to_dbids[$ordered_menu_item_object->menu_order] = $ordered_menu_item_object->ID; } } } // get next in order if ( isset( $orders_to_dbids[$dbids_to_orders[$menu_item_id] + 1] ) ) { $next_item_id = $orders_to_dbids[$dbids_to_orders[$menu_item_id] + 1]; $next_item_data = (array) wp_setup_nav_menu_item( get_post( $next_item_id ) ); // if not siblings of same parent, bubble menu item up but keep order if ( ! empty( $menu_item_data['menu_item_parent'] ) && ( empty( $next_item_data['menu_item_parent'] ) || $next_item_data['menu_item_parent'] != $menu_item_data['menu_item_parent'] ) ) { $parent_db_id = in_array( $menu_item_data['menu_item_parent'], $orders_to_dbids ) ? (int) $menu_item_data['menu_item_parent'] : 0; $parent_object = wp_setup_nav_menu_item( get_post( $parent_db_id ) ); if ( ! is_wp_error( $parent_object ) ) { $parent_data = (array) $parent_object; $menu_item_data['menu_item_parent'] = $parent_data['menu_item_parent']; update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] ); } // make menu item a child of its next sibling } else { $next_item_data['menu_order'] = $next_item_data['menu_order'] - 1; $menu_item_data['menu_order'] = $menu_item_data['menu_order'] + 1; $menu_item_data['menu_item_parent'] = $next_item_data['ID']; update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] ); wp_update_post($menu_item_data); wp_update_post($next_item_data); } // the item is last but still has a parent, so bubble up } elseif ( ! empty( $menu_item_data['menu_item_parent'] ) && in_array( $menu_item_data['menu_item_parent'], $orders_to_dbids ) ) { $menu_item_data['menu_item_parent'] = (int) get_post_meta( $menu_item_data['menu_item_parent'], '_menu_item_menu_item_parent', true); update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] ); } } } break; case 'move-up-menu-item' : check_admin_referer( 'move-menu_item' ); $menu_item_id = isset( $_REQUEST['menu-item'] ) ? (int) $_REQUEST['menu-item'] : 0; if ( is_nav_menu_item( $menu_item_id ) ) { $menus = isset( $_REQUEST['menu'] ) ? array( (int) $_REQUEST['menu'] ) : wp_get_object_terms( $menu_item_id, 'nav_menu', array( 'fields' => 'ids' ) ); if ( ! is_wp_error( $menus ) && ! empty( $menus[0] ) ) { $menu_id = (int) $menus[0]; $ordered_menu_items = wp_get_nav_menu_items( $menu_id ); $menu_item_data = (array) wp_setup_nav_menu_item( get_post( $menu_item_id ) ); // setup the data we need in one pass through the array of menu items $dbids_to_orders = array(); $orders_to_dbids = array(); foreach( (array) $ordered_menu_items as $ordered_menu_item_object ) { if ( isset( $ordered_menu_item_object->ID ) ) { if ( isset( $ordered_menu_item_object->menu_order ) ) { $dbids_to_orders[$ordered_menu_item_object->ID] = $ordered_menu_item_object->menu_order; $orders_to_dbids[$ordered_menu_item_object->menu_order] = $ordered_menu_item_object->ID; } } } // if this menu item is not first if ( ! empty( $dbids_to_orders[$menu_item_id] ) && ! empty( $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1] ) ) { // if this menu item is a child of the previous if ( ! empty( $menu_item_data['menu_item_parent'] ) && in_array( $menu_item_data['menu_item_parent'], array_keys( $dbids_to_orders ) ) && isset( $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1] ) && ( $menu_item_data['menu_item_parent'] == $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1] ) ) { $parent_db_id = in_array( $menu_item_data['menu_item_parent'], $orders_to_dbids ) ? (int) $menu_item_data['menu_item_parent'] : 0; $parent_object = wp_setup_nav_menu_item( get_post( $parent_db_id ) ); if ( ! is_wp_error( $parent_object ) ) { $parent_data = (array) $parent_object; // if there is something before the parent and parent a child of it, make menu item a child also of it if ( ! empty( $dbids_to_orders[$parent_db_id] ) && ! empty( $orders_to_dbids[$dbids_to_orders[$parent_db_id] - 1] ) && ! empty( $parent_data['menu_item_parent'] ) ) { $menu_item_data['menu_item_parent'] = $parent_data['menu_item_parent']; // else if there is something before parent and parent not a child of it, make menu item a child of that something's parent } elseif ( ! empty( $dbids_to_orders[$parent_db_id] ) && ! empty( $orders_to_dbids[$dbids_to_orders[$parent_db_id] - 1] ) ) { $_possible_parent_id = (int) get_post_meta( $orders_to_dbids[$dbids_to_orders[$parent_db_id] - 1], '_menu_item_menu_item_parent', true); if ( in_array( $_possible_parent_id, array_keys( $dbids_to_orders ) ) ) $menu_item_data['menu_item_parent'] = $_possible_parent_id; else $menu_item_data['menu_item_parent'] = 0; // else there isn't something before the parent } else { $menu_item_data['menu_item_parent'] = 0; } // set former parent's [menu_order] to that of menu-item's $parent_data['menu_order'] = $parent_data['menu_order'] + 1; // set menu-item's [menu_order] to that of former parent $menu_item_data['menu_order'] = $menu_item_data['menu_order'] - 1; // save changes update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] ); wp_update_post($menu_item_data); wp_update_post($parent_data); } // else this menu item is not a child of the previous } elseif ( empty( $menu_item_data['menu_order'] ) || empty( $menu_item_data['menu_item_parent'] ) || ! in_array( $menu_item_data['menu_item_parent'], array_keys( $dbids_to_orders ) ) || empty( $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1] ) || $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1] != $menu_item_data['menu_item_parent'] ) { // just make it a child of the previous; keep the order $menu_item_data['menu_item_parent'] = (int) $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1]; update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] ); wp_update_post($menu_item_data); } } } } break; case 'delete-menu-item': $menu_item_id = (int) $_REQUEST['menu-item']; check_admin_referer( 'delete-menu_item_' . $menu_item_id ); if ( is_nav_menu_item( $menu_item_id ) ) { if ( wp_delete_post( $menu_item_id, true ) ) { $messages[] = '
' . __('The menu item has been successfully deleted.') . '
' . $delete_nav_menu->get_error_message() . '
' . __('The menu has been successfully deleted.') . '
' . $_nav_menu_selected_id->get_error_message() . '
' . sprintf( __('The %s menu has been successfully created.'), $nav_menu_selected_title ) . '
' . __('Please enter a valid menu name.') . '
' . $_nav_menu_selected_id->get_error_message() . '
' . $menu_item_db_id->get_error_message() . '
' . sprintf( __('The %s menu has been updated.'), $nav_menu_selected_title ) . '
' . __('The current theme does not natively support menus, but you can use the “Custom Menu” widget to add any menus you create here to the theme’s sidebar.') . '