Reply To: Completely Replace Relationship Query

• John Huebner

• April 28, 2017 at 8:28 am

No, that won’t work, ACF does not actually do anything on that hook and only provides it so that you can alter the query that’s going to be run anyway.

To replace the query completely you’d need to figure out how to remove the ajax actions that are called, and unfortunately, I don’t see any way to do that….

and then I find one.

So I’ve never really given this much thought, and I cannot tell you everything that is involved, this is just a vague idea of how it could be done.

• create an ‘init’ action
• see if the request is an ajax request https://developer.wordpress.org/reference/functions/wp_doing_ajax/
• if it is, check $_POST values to see if the request is for your field
• If it is then remove all filters for the hooks wp_ajax_acf/fields/relationship/query and wp_ajax_nopriv_acf/fields/relationship/query https://codex.wordpress.org/Function_Reference/remove_all_filters
• Add your own actions for both of these hooks
• Replace everything that ACF does for these actions /advanced-custom-fields-pro/fields/relationship.php LINE ~66

EDIT: making sure that you return the values for the relationship field exactly the way that ACF returns the values