Reply To: relationship filter – query by page-template?

• John Huebner

• August 15, 2015 at 2:33 am

I don’t understand why, but it appears that you must supply a 'relation' value. Try this

// relationship field "Fächer"
// the key of the field "Fächer"
add_filter('acf/fields/relationship/query/key=field_5593ec53f0a0c', 'my_relationship_query', 10, 3);
function my_relationship_query($args, $field, $post) {
    // show only pages with this special template
    $args['meta_query'] = array(
        'relation' => 'AND',
        array(
            'key' => '_wp_page_template',
            'value' => 'page-fach.php',
            'compare' => '='
        )
    );
    return $args;
}