I'm migrating a site from another CMS to Wordpress and am writing a tutorial on it alongside.
Wordpress has simple and straightforward solutions to most of the basic features from that CMS that I need to replicate. One big exception seems to be multi-level menus.
I need to display a primary menu level ("About" being the selected item here):
HOME ABOUT PRODUCTS BUY CONTACT ^
and, in a separate container, the secondary level:
ABOUT US HISTORY PEOPLE AWARDS ^
I've done a lot of research on how to do this using
wp_nav_menu(). There are workaround solutions out there, like this WP.SE answer and wp_nav_menu_extended, which is more or less the same approach in plugin form. Those solutions hack into
wp_nav_menu() and filter out the elements that aren't in the current context.
These approaches did not work 100% for me: they wouldn't reliably filter out the right elements on every type of page.
Then there's Advanced Menu Widget that does exactly what I need, but I'd like not to have to use a
wp_nav_menu() replacement that may not have other features it has. (Also I'm not sure how to call it from within the theme's code - I absolutely would want to hard-wire this.)
The approach I'm using right now is to display the entire menu, then filter out the elements that aren't part of the current second level using CSS - but that feels clunky, too, and I'm hesitant to recommend this in a professional tutorial.
Is there no straightforward approach to this that just augments