Different main nav menus for site section

***SOLVED****
Further to this, for anyone wanting to solve this challenge of having conditional man navigation menus based on the site section, the below set of functions:

1. Setup specific menus for your audiences (Patient and HCP in this example)
2. Creates an is_child function that determines if the page has a parent page called something specific (you can also do this by page ID or page slug of the parent but I want to re-use it for other sites so using the page name)
3. Provides the conditional swap logic “my_custom_wp_nav_menu_args” to swap out the main nav and defaults to the Enfold Main Nav otherwise.

So to set this up:

Create the following in the child theme functions.php
Create your section home pages
Create your sub-pages and then set their parent page as the section home page

I hope this helps someone.

function register_my_menus() {
register_nav_menus(
array(
‘patient-menu’ => __( ‘Patient Menu’ ),
‘HCP-menu’ => __( ‘HCP Menu’ )
)
);
}
add_action( ‘init’, ‘register_my_menus’ );

/**
* Child page conditional
* @ Accept’s page ID, page slug or page title as parameters
* https://sridharkatakam.com/useful-functions-checking-pages-sub-pages-wordpress/
*/
function is_child( $parent = ” ) {
global $post;
$parent_obj = get_page( $post->post_parent, ARRAY_A );
$parent = (string) $parent;
$parent_array = (array) $parent;
if ( in_array( (string) $parent_obj[‘ID’], $parent_array ) ) {
return true;
} elseif ( in_array( (string) $parent_obj[‘post_title’], $parent_array ) ) {
return true;
} elseif ( in_array( (string) $parent_obj[‘post_name’], $parent_array ) ) {
return true;
} else {
return false;
}
}

add_filter( ‘wp_nav_menu_args’, ‘my_custom_wp_nav_menu_args’ );

/**
* CManu switch based on page/parent relationship for HCP, Patient or others
* @ Accept’s page ID, page slug or page title as parameters
* PJE – RESOLVE
*/

function my_custom_wp_nav_menu_args( $args = ” ) {

if($args[‘theme_location’] === ‘avia’)
if ( is_child( ‘HCP Home’ ) ) {
$args[‘menu’] = ‘HCP’;
} elseif ( is_child( ‘Patient Home’ ) ) {
$args[‘menu’] = ‘Patient’;
} else {
//* otherwise set the default as defined in the enfold-child theme as Main Menu
$args[‘menu’] = ‘avia-menu’;
}
return $args;
}

Thanks Yigit – unless I have misunderstood – your solution just looks at having different menus (Main nav, top nav, footer etc). This creates a different MAIN Nav for a section based on the conditions of where the page is in the hierarchy.

I am currently trying to hook into the very top nav to do the same. (header_secondary_menu) which I see you have avf_execute_avia_meta_header

You define this as avia2 in the helper-main-menu.php (lines 62-64)

//display the small submenu
      $avia_theme_location = 'avia2';
			                $avia_menu_class = $avia_theme_location . '-menu';

So I have modified the following but it doesn’t appear to work. What am I missing?

Thanks

function my_custom_wp_nav_menu_args( $args = '' ) {

if($args['theme_location'] === 'avia2') 
	if ( is_child( 'HCP Home' ) ) {
		  $args['menu'] = 'Top Menu HCP'; 
	} elseif ( is_child( 'Patient Home' ) ) {
		  $args['menu'] = 'Top Menu Patient'; 		
	} else {
		//* otherwise set the default as defined in the enfold-child theme as Secondary Menu
		$args['menu'] = 'avia2';
	}
return $args;

Mike – thanks so much for that, it worked perfectly.

Much appreciated.

Philip.