我想将当前菜单项的CSS类（及其父类和父类）添加到当前页面主体类中。
例如，如果当前菜单项有一个CSS类“products”（如外观|菜单中所定义），那么相应页面的主体也应该有一个类“products”。
如果这对任何人都有意义的话，有什么办法吗？
我已经看过了“How to add current, parent, and ancestor menu item IDs to body_class()?“但在我的情况下，这些想法是行不通的。
将导航菜单css类添加到正文
3 个回复
SO网友:dvd3141
多亏了阿加瓦尔先生的提示，这就是我设法拼凑起来的：
function pa_assign_menu_class_to_body(){
// \'main\' is the theme_location, set earlier using register_nav_menus()
$menu_name = \'main\';
$class_list = array();
if ( ( $locations = get_nav_menu_locations() ) && isset( $locations[ $menu_name ] ) ) {
$menu = wp_get_nav_menu_object( $locations[ $menu_name ] );
$menu_items = wp_get_nav_menu_items($menu->term_id);
// _wp_menu_item_classes_by_context() adds current, current_item_parent and current_item_ancestor to the appropriate arrays in the provided variable
_wp_menu_item_classes_by_context( $menu_items );
$classes = array();
foreach($menu_items as $menu_item) {
if ($menu_item->current == 1) {
$classes[\'current\'] = $menu_item->classes;
}
if ($menu_item->current_item_parent == 1) {
$classes[\'parents\'] = $menu_item->classes;
}
if ($menu_item->current_item_ancestor == 1) {
$classes[\'ancestors\'] = $menu_item->classes;
}
}
// create a one-dimensional array of unique classes
foreach($classes as $class)
foreach ($class as $cls) $class_list[] = $cls;
$class_list = array_values(array_unique($class_list));
}
// if, for some reason, we have no results, we need to assign a default class otherwise WordPress complains
if (empty($class_list)) $class_list[] = \'default\';
return $class_list;
}
add_filter( \'body_class\', \'pa_assign_menu_class_to_body\');
menu-item-也键入类。我真正想要的是用户在WordPress菜单管理屏幕的CSS类字段中输入的自定义CSS类。任何关于如何只提取这些类的想法都是非常受欢迎的。SO网友:Mridul Aggarwal
在答案中you linked, 执行var_dump($dosmenu); 就在线的上方_wp_menu_item_classes_by_context( $dosmenu );. 该变量应该已经用您想要的类初始化。
之后，您可以调整foreach 相应地循环（&A）；将该函数用作过滤器body_class.
admin中设置的类存储为带有键的post meta_menu_item_classes 在调用中自动初始化wp_get_nav_menu_items
SO网友:Dadiocoleman
对上面发布的代码稍加修改，只获得自定义类。自定义类始终是第一项。
function pa_assign_menu_class_to_body(){
// \'main\' is the theme_location, set earlier using register_nav_menus()
$menu_name = \'main\';
$class_list = array();
if ( ( $locations = get_nav_menu_locations() ) && isset( $locations[ $menu_name ] ) ) {
$menu = wp_get_nav_menu_object( $locations[ $menu_name ] );
$menu_items = wp_get_nav_menu_items($menu->term_id);
// _wp_menu_item_classes_by_context() adds current, current_item_parent and current_item_ancestor to the appropriate arrays in the provided variable
_wp_menu_item_classes_by_context( $menu_items );
$classes = array();
foreach($menu_items as $menu_item) {
if ($menu_item->current == 1) {
$classes[\'current\'] = $menu_item->classes;
}
if ($menu_item->current_item_parent == 1) {
$classes[\'parents\'] = $menu_item->classes;
}
if ($menu_item->current_item_ancestor == 1) {
$classes[\'ancestors\'] = $menu_item->classes;
}
}
// create a one-dimensional array of unique classes
foreach($classes as $class)
foreach ($class as $cls) $class_list[] = $cls;
$class_list = array_values(array_unique($class_list));
}
// if, for some reason, we have no results, we need to assign a default class otherwise WordPress complains
if (empty($class_list)) $class_list[] = \'default\';
//Gets first class if custom. If not, returns null.
if ($class_list[0] != \'menu-item\') {
$class_list_return[] = $class_list[0];
} else {
$class_list_return[] = null;
}
return $class_list_return;
}
add_filter( \'body_class\', \'pa_assign_menu_class_to_body\');
function pa_assign_menu_class_to_body($classes){
// \'main\' is the theme_location, set earlier using register_nav_menus()
$menu_name = \'main\';
$class_list = array();
if ( ( $locations = get_nav_menu_locations() ) && isset( $locations[ $menu_name ] ) ) {
$menu = wp_get_nav_menu_object( $locations[ $menu_name ] );
$menu_items = wp_get_nav_menu_items($menu->term_id);
// _wp_menu_item_classes_by_context() adds current, current_item_parent and current_item_ancestor to the appropriate arrays in the provided variable
_wp_menu_item_classes_by_context( $menu_items );
foreach($menu_items as $menu_item) {
if ($menu_item->current == 1) {
$classes[\'current\'] = $menu_item->classes;
}
if ($menu_item->current_item_parent == 1) {
$classes[\'parents\'] = $menu_item->classes;
}
if ($menu_item->current_item_ancestor == 1) {
$classes[\'ancestors\'] = $menu_item->classes;
}
}
// create a one-dimensional array of unique classes
foreach($classes as $class)
foreach ($class as $cls) $class_list[] = $cls;
$class_list = array_values(array_unique($class_list));
}
// if, for some reason, we have no results, we need to assign a default class otherwise WordPress complains
if (empty($class_list)) $class_list[] = \'default\';
//Gets first class if custom. If not, returns null.
if ($class_list[0] != \'menu-item\') {
$class_list_return[] = $class_list[0];
} else {
$class_list_return[] = null;
}
return array_merge($classes, $class_list_return);
}
add_filter( \'body_class\', \'pa_assign_menu_class_to_body\');
结束