解决方案现在包含在插件中！
<?php
/**
* Plugin Name: CE WP-Menu per Page
* Plugin URI: http://ppfeufer.de/wordpress-plugin/ce-wp-menu-per-page/
* Description: This plugin allows you to select a menu on a per page basis.
* Version: 1.2
* Author: Codeenterprise (H.-Peter Pfeufer)
* Author URI: http://codeenterprise.de
* Text Domain: ce-wp-menu-per-page
* Domain Path: /l10n
*/
/**
* Constructor (old style)
*
* @uses __construct
*/
function Ce_Wp_Menu_Per_Page() {
self::__construct();
} // END function Ce_Wp_Menu_Per_Page()
/**
* Constructor
*/
function __construct() {
// Backend
if(is_admin()) {
add_action(\'admin_init\', array(
$this,
\'_plugin_init\'
));
add_action(\'add_meta_boxes\', array(
$this,
\'_add_meta_box\'
));
add_action(\'save_post\', array(
$this,
\'_save_page_menu\'
));
} // END if(is_admin())
// Frontend
if(!is_admin()) {
add_filter(\'wp_nav_menu_args\', array(
$this,
\'_menu_per_page\'
));
} // END if(!is_admin())
} // END function __construct()
function _plugin_init() {
/**
* Sprachdatei wählen
*/
if(function_exists(\'load_plugin_textdomain\')) {
load_plugin_textdomain($this->textdomain, false, dirname(plugin_basename( __FILE__ )) . \'/l10n/\');
} // END if(function_exists(\'load_plugin_textdomain\'))
} // END function _plugin_init()
/**
* Metabox am System anmelden
*/
function _add_meta_box() {
add_meta_box($this->metaboxID, __(\'Select the menu for this page\', $this->textdomain), array(
$this,
\'the_meta_box\'
), $this->posttype, \'normal\', \'high\');
} // END function _add_meta_box()
/**
* Metabox erstellen
*/
function the_meta_box() {
global $post;
// Menüs abholen
$menues = wp_get_nav_menus();
$menu_locations = get_registered_nav_menus();
if(!empty($menues) && count($menues) != 0) {
// Use nonce for verification
wp_nonce_field(plugin_basename( __FILE__ ), $this->noncename);
// Ist bereits ein Menü gewählt?
$menuslug = get_post_meta($post->ID, $this->metaname_menu, true);
$menuposition = get_post_meta($post->ID, $this->metaname_menu_position, true);
// Setting the defaultmenu
if(empty($menuslug)) {
$menuslug = $this->defaultmenu;
} // END if(empty($menu_name))
$array_DefaultMenu[\'wp-default\'] = new stdClass();
$array_DefaultMenu[\'wp-default\']->name = __(\'Wordpress Default\', $this->textdomain);
$array_DefaultMenu[\'wp-default\']->slug = \'wp-default\';
$menues = array_merge($array_DefaultMenu, (array) $menues);
echo sprintf(\'<p>%1$s</p>\', __(\'Please select the menu which should be displayed on this page.\', $this->textdomain));
echo \'<select name="\' . $this->menu_selectname . \'">\';
foreach($menues as $menu) {
if(!empty($menuslug)) {
$selected = \'\';
if($menuslug == $menu->slug) {
$selected = \' selected="selected"\';
} // END if($menu_name == $menu->slug)
} // END if(!empty($menu_name))
echo \'<option value="\' . $menu->slug . \'"\' . $selected . \'>\' . $menu->name . \'</option>\';
} // END foreach($menues as $menu)
echo \'</select>\';
if(is_array($menu_locations) && count($menu_locations) != 0) {
echo sprintf(\'<p>%1$s</p>\', __(\'Please select the menu location, where your menu should appear\', $this->textdomain));
echo \'<select name="\' . $this->position_selectname . \'">\';
foreach($menu_locations as $slug => $position) {
if(!empty($menuposition)) {
$selected = \'\';
if($menuposition == $slug) {
$selected = \' selected="selected"\';
} // END if($menu_name == $menu->slug)
} // END if(!empty($menu_name))
echo \'<option value="\' . $slug . \'"\' . $selected . \'>\' . $position . \'</option>\';
} // END foreach($menues as $menu)
echo \'</select>\';
} // END if(is_array($menu_locations) && count($menu_locations) != 0)
} // END if(!empty($menues) && count($menues) != 0)
} // END function the_meta_box()
/**
* Daten speichern
*
* @param int $post_id
*/
function _save_page_menu($post_id) {
// Erst mal schauen wir, ob der Nutzer das überhaupt darf
if(!current_user_can($this->userright, $post_id)) {
return;
}
// Dann prüfen wir die Nonces
if(!isset($_REQUEST[$this->noncename]) || !wp_verify_nonce($_REQUEST[$this->noncename], plugin_basename(__FILE__))) {
return;
} // END if(!isset($_REQUEST[\'vokabel_page_menu\']) || !wp_verify_nonce($_REQUEST[\'vokabel_page_menu\'], plugin_basename(__FILE__)))
// und nun wird der ganze Hokuspokus gespeichert
$post_id = $_REQUEST[\'post_ID\'];
/**
* Saving the Settings
*/
if($_REQUEST[$this->menu_selectname] == $this->defaultmenu) {
// Get the old slug
$menuslug = get_post_meta($post->ID, $this->metaname_menu, true);
if(empty($menuslug)) {
delete_post_meta($post_id, $this->metaname_menu);
delete_post_meta($post_id, $this->metaname_menu_position);
} // END if(empty($menu_name))
} else {
// Metainformationen hinzufügen oder aktualisieren
add_post_meta($post_id, $this->metaname_menu, $_REQUEST[$this->menu_selectname], true) or update_post_meta($post_id, $this->metaname_menu, $_REQUEST[$this->menu_selectname]);
add_post_meta($post_id, $this->metaname_menu_position, $_REQUEST[$this->position_selectname], true) or update_post_meta($post_id, $this->metaname_menu_position, $_REQUEST[$this->position_selectname]);
} // END // END if($_REQUEST[$this->menu_selectname] == $this->defaultmenu)
} // END function _save_page_menu($post_id)
/**
* Menü im Frontend anzeigen
*
* @param array $args
* @return Ambigous <mixed, string, multitype:, boolean, array, string>
*/
function _menu_per_page($args = \'\') {
global $post;
if(!empty($post)) {
$menuslug = get_post_meta($post->ID, $this->metaname_menu, true);
$menuposition = get_post_meta($post->ID, $this->metaname_menu_position, true);
if(empty($menuposition)) {
$menuposition = $this->defaultmenu_position;
} // END if(empty($menuposition))
if(is_page() && $args[\'theme_location\'] == $menuposition) {
if(!empty($menuslug) && is_nav_menu($menuslug)) {
$args[\'menu\'] = $menuslug;
} // END if(!empty($menu_name) && is_nav_menu($menu_name))
} // END if(is_page())
} // END if(!empty($post))
return $args;
} // END function _menu_per_page($args = \'\')
} // END class Ce_Wp_Menu_Per_Page
// Klasse starten
new Ce_Wp_Menu_Per_Page();
} // END if(!class_exists(\'Ce_Wp_Menu_Per_Page\'))
