Home Forums ACF PRO Customizing the Post Relationship search field…


Customizing the Post Relationship search field…

  • Is it possible to modify which fields the Post Relationship search box searches (in admin)?

    By default it seems to search both title and post content, but on a site with many hundreds of posts that often returns a super long posts list. I’d like to modify it so that it only search by post title, not the_content.


  • When performing the search ACF uses the standard WP search feature.

    You would need to add a filter

    In this filter you would add a second filter following this

    add_filter('acf/fields/relationship/query/name={YOUR FIELD NAME}', 'my_acf_fields_relationship_query', 10, 3);
    function my_acf_fields_relationship_query( $args, $field, $post_id ) {
      add_filter('posts_search', '__search_by_title_only', 500, 2);
      return $args;
    function __search_by_title_only($search, &$wp_query) {
      // code from stack
  • Thanks John! This looks perfect. I’ll give it a try first thing tomorrow.

  • Nevermind. It worked perfectly. But you definitely have to use the field name, not the field ID. I thought the latter would work better since the field was nested in a repeater. Nope. 🙂

    Thanks again.

  • You can use the field name or field key, the ID is not useful. Inside a repeater I would suggest using the field key, sometimes the field name does not work.

    Your issue was here


    to use the key is should be

  • Your issue was here

    Yep, you’re right. Fixed that and it works perfectly with the key. Thanks again! 🙂

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