dynamically limit depth of wp_list_pages

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I guess that this should be an easy one but I haven’t yet find the proper solution.

I want to limit the depth of wp_list_pages so as not to display the pages of the last level. So supposing that parent page A has 3 levels of pages I only want to list first 2 levels. I was looking for a function to count the maximum depth of children for a page but no success.

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Till now my code is 

$parents = get_post_ancestors($post->ID);
if (count($parents)>1) {
    $parent = $parents[count($parents)-2];
} else  {
    $parent = $post->ID;
}

$args = array(
        'depth'        => 0,  // this should be set dynamically
        'child_of'     => $parent,
        'sort_column'  => 'menu_order, post_title',
        'post_type'    => 'page',
        'post_status'  => 'publish'
    ); 

wp_list_pages( $args );

Any help is greatly appreciated

Post Views: 1

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1 comment

  1. This is a little tricky, and my solution may not be the best for the performance. You may add this Value as a Custom Field to the Page, so you do not have to query it everytime.

    // get the ancestors of the page, and check if the page is toplevel
$parent = array_reverse( get_post_ancestors( $post->ID ) );
if ( isset( $parent[0] ) ) {
    $toplevel = $parent[0];
} else {
    $toplevel = $post->ID;
}

// get the children of this toplevelpage
$children = get_page_hierarchy( get_pages(), $toplevel );
$depth = 0;
foreach ( $children as $child => $slug ) {

    // check how many ancestors this page has
    $count = count( get_ancestors( $child, 'page' ) );
    // if more than the current depth, set the depth to the new value
    if ( $count > $depth ) {
        $depth = $count;
    }

}
echo $depth; //total depth below this toplevelpage, you can delete this part afterwards

$depth_without_last = $depth - 1;

    Just insert the varible instead of the 0 at the depth in your $args, this should work 🙂