I use ACF to built a theme for my hiking blog… To be short each Hike(CPT) can have many Summit(CPT) and each Summit(CPT) has 1 Location(CPT).

When I add a Hike, i can add 1 or many summit in the box. That part work great. But for example if in one Hike i’ve had to choose Black Mountain, i face off with multiple “Black Mountain” choice without knowing which one is the good. I would like to show the location next to the Summit Name.

What I’ve so far

 add_filter('acf/fields/relationship/result/name=sommet_rel', 'id_relationship_result', 10, 4);
function id_relationship_result($title, $post, $field, $post_id){
 
    $location = get_field('location', $post->ID);
    $title.= ' ' .  $location->$post_title;
    
    return $title;
} 

My structure

Hike ( Custome Post Type)

• Summit (Bi-directionnale relationship)

Summit (custom Post Type)

• Hike (Bi-Directionnale relationship)

• Location (Relationship)

Location (Custom Post Type)

I know that for the filter i’m in the good place because when I put some hard coded values it’s ok… But there’s is now way to dig into the relationship.

I’ve try to var_dump many value with no success.

I’m lost on this one and there is very little information on the net about this filter.

I’m lost on this one and there is very little information on the net about this filter.