我有一个自定义的帖子类型“product”。我需要从主菜单访问其索引，因此我添加了一个自定义菜单项，只需将“/works/”作为url值。问题是：如果我查看的是单个产品，则主索引菜单链接不会收到当前的\\u menu\\u祖先类。知道怎么解决吗？
register_post_type( \'product\',
array(
\'labels\' => array(
\'name\' => __( \'Works\' ),
\'singular_name\' => __( \'Work\' ),
\'add_new\' => _x(\'Add New\', \'Work\'),
\'add_new_item\' => __(\'Add New Work\'),
\'edit_item\' => __(\'Edit Work\'),
\'new_item\' => __(\'New Work\'),
\'view_item\' => __(\'View Work\'),
\'search_items\' => __(\'Search Works\'),
\'not_found\' => __(\'No Work found\'),
\'not_found_in_trash\' => __(\'No Work found in Trash\'),
\'menu_name\' => \'Works\'
),
\'public\' => true,
\'publicly_queryable\' => true,
\'exclude_from_search\'=>false,
\'show_ui \'=>true,
\'query_var\' => true,
\'show_in_menu \'=>true,
\'show_in_nav_menus \'=>true,
\'has_archive\' => \'works\',
\'rewrite\' => array(\'slug\'=>\'work\',\'with_front\'=>false),
\'menu_position\' => 2,
\'menu_icon\' => get_stylesheet_directory_uri() . \'/library/images/custom-post-icon.png\',
\'capability_type\' => \'post\',
\'hierarchical\' => false,
\'supports\'=>array(\'title\',\'editor\',\'thumbnail\',\'excerpt\'),
\'taxonomies\'=>array(\'post_tag\')
)
);
最合适的回答,由SO网友:Pontus Abrahamsson 整理而成
把这个放在你的函数中。php：
function additional_active_item_classes($classes = array(), $menu_item = false){
global $wp_query;
if(in_array(\'current-menu-item\', $menu_item->classes)){
$classes[] = \'current-menu-item\';
}
if ( $menu_item->post_name == \'product\' && is_post_type_archive(\'product\') ) {
$classes[] = \'current-menu-item\';
}
if ( $menu_item->post_name == \'product\' && is_singular(\'product\') ) {
$classes[] = \'current-menu-item\';
}
return $classes;
}
add_filter( \'nav_menu_css_class\', \'additional_active_item_classes\', 10, 2 );
此代码检查您是否在页面产品存档或单个产品上，如果是，则添加类当前菜单项
