Autopopulate menu item with posts by post type

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Autopopulate menu item with posts by post type as submenu items

Language

PHP

Rating

Voted: 3 by 3 user(s)

How to Setup Snippet

Install, define the $post_type variable, add CSS Class to the parent menu item, enjoy!

Codevault

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Wordpress Compatability

The author has indicated that this snippet is compatable up to wordpress version: 6.1

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History

Last modified:

28/07/2023

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Autopopulate menu item with posts by post type

 
                     1add_filter( 'wp_get_nav_menu_items', function( $items, $menu, $args ) {
 2    $child_items = array(); // here, we will add all items for the single posts
 3    $menu_order = count($items); // this is required, to make sure it doesn't push out other menu items
 4    $parent_item_id = 0; // we will use this variable to identify the parent menu item
 5    $post_type = 'custom_post_type'; // we will use this variable to define the post type to display
 6 
 7    //First, we loop through all menu items to find the one we want to be the parent of the sub-menu with all the posts.
 8  foreach ( $items as $item ) {
 9    if ( in_array("$post_type-parent", $item->classes) ){ // add this class to the parent menu item. current ex: "custom_post_type-parent"
10        $parent_item_id = $item->ID;
11    }
12  }
13 
14  if($parent_item_id > 0){
15 
16      foreach ( get_posts( "post_type=$post_type&numberposts=-1" ) as $post ) {
17        $post->menu_item_parent = $parent_item_id;
18        $post->post_type = 'nav_menu_item';
19        $post->object = 'custom';
20        $post->type = 'custom';
21        $post->menu_order = ++$menu_order;
22        $post->title = $post->post_title;
23        $post->url = get_relative_permalink( $post->ID );
24        array_push($child_items, $post);
25      }
26 
27  }
28 
29  return array_merge( $items, $child_items );
30}, 10, 3 );

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