Reply To: Update Taxonomy of posts selected by acf relation field

• John Huebner

• September 13, 2019 at 9:49 pm

Is list the name of your taxonomy? That’s about the only thing I think will cause an issue.

This line should be limiting your the adding of terms to only things that have the values set

if( $PostList ): 

The post ID passed to your function for a term would be something like “term_100” where 100 will be the id of the term. You need to extract this.

$term_id = intval(str_replace('term_', $post_id));

and now that I’m looking at it the order of your arguments are also wrong.

$posts = get_field('downloads_listing', $post_id);
$term_id = intval(str_replace('term_', $post_id));
if ($posts) {
  foreach ($posts as $post) {
    // make sure "list" is the taxonomy name and not the term name
    wp_set_post_terms($post->ID, $term_id, 'list', true);
  }
}