Count relationships

• [email protected]

• February 12, 2020 at 7:46 pm

Hi,

I’ve created the following function in order to return the number of posts attached (via relationship field) to a custom post type :

function acf_save_post_nombre_avis ($post_id) {

$nombre_avis = count(get_field('avis_clients'));

update_field('nombre_avis', $nombre_avis, $post_id);

}

add_action('acf/save_post', 'acf_save_post_nombre_avis', 20);

It works well, except when there are no post attached, the function returns 1 instead of 0….

Any idea of what I am doing wrong ?

Thanks !

• John Huebner

• February 13, 2020 at 5:42 am

2 issues

1) you need to supply the post ID for both getting and setting a field.

2) count may be giving an error if no value is being returned

function acf_save_post_nombre_avis ($post_id) {
  $nombre_avis = 0;
  $avis_clients= get_field('avis_clients', $post_id);
  if (!empty($avis_clients)) {
    $nombre_avis = count($avis);
  }
  update_field('nombre_avis', $nombre_avis, $post_id);
}

add_action('acf/save_post', 'acf_save_post_nombre_avis', 20);