Auto Submenu

常见问题

How do I use it?

Here’s a walkthrough:

1. Create a page with title “Page 1”
2. Save the page
3. Create a child page with title “Child Page 1” and parent “Page 1”
4. Save the child page
5. Go to Appearances > Menus (or via Appearance > Customize or Appearance > Editor, in WordPress 5.4 or higher)
6. Add your page named “Page 1”
7. Open the menu item and check “Automatically create submenu with child pages”
8. Save the menu

If you now look at your website, “Page 1” has a submenu with “Child Page 1” below it. Add additional child page and you will automatically see these additional child pages in the menu.

Missing CSS classes

The CSS class ‘current-post-ancestor’ is not applied correctly. This is a bug in WordPress that I have reported here: https://core.trac.wordpress.org/ticket/32918 This is not something I am able to fix in the plugin, it has to be fixed in WordPress. I’m sorry for the inconvenience.

Performance issues

The plugin is potentially very expensive, especially when you have a lot of pages and child pages.

The solution would be to cache the menu using transients, as reported here https://wordpress.org/support/topic/performance-problem-many-database-queries?replies=11#post-7829450

$my_cached_menu = get_transient( ‘my_cached_menu’);

if( $my_cached_menu === false )

{

$my_cached_menu = wp_nav_menu( … );

set_transient( “my_cached_menu_”, $my_cached_menu, YEAR_IN_SECONDS );

}

echo $my_cached_menu;

Can’t see it working in any way

Problem: “I can’t see what effect it has had. Nothing has changed (not that I can see) in the Appearance > Menu/Customize/Editor pages. It’s just like before.”

If you are using a recent version of Auto Submenu and an updated version of WordPress, the problem can only occur due to your theme or other plugins conflicting with Auto Submenu. Please disable all themes and plugins except ASM; verify that the ASM fields show; enable other plugins and themes one by one to determine which plugin/theme conflicts with ASM.

Note: A theme must either call wp_nav_menu() or apply_filters( ‘wp_nav_menu_objects’, … ) for ASM to be triggered.

Does not work for scheduled pages

Automatically adding future dated child pages doesn’t work due to what appears to be a bug in the WordPress core. Future dated top-level pages don’t seem to get added to custom menus either.