wordpresscustom-post-typecustom-taxonomyhierarchical

Get the parent taxonomy for custom post type

I have a custom post type called 'listing' and a custom taxonomy called 'listing-category'

I am trying to create a class for the single-listing.php posts that is the slug of the parent custom taxonomy only eg:

STAY - Hotel - B&B

EAT - Cafes - Bakery

SHOP - Food - Shoes

So for single posts under hotel - I need to create a class of 'stay' as all posts under that class will have the same style.

What I hope to output is for example:

<div id="main-content" class="stay">

This previous question seems closest but I can't seem to get it working for my project: https://wordpress.stackexchange.com/questions/24794/get-the-the-top-level-parent-of-a-custom-taxonomy-term

I've been going around in circles for about two days with this so any help would be really appreciated!

Solution

  • Actually that answer you have given the link to is OK and solves your problem as well. May be you do wrong implementation.

    Here is sample code for your case:

    global $post;
$ctp_listing_cats=wp_get_post_terms( $post->ID, 'listing-category' );

if (!empty($ctp_listing_cats[0]->term_id)){
   $topparent=get_term_top_most_parent($ctp_listing_cats[0]->term_id,'listing-category');
}

//...
echo '<div id="main-content" class="'.$topparent->name.'">';

    get_term_top_most_parent() function of the given code is the function from another answer you gave link to.