Facetwp ACF Relationship custom fields

<?php

function my_facetwp_index_row($params, $class) {
    if ('branch' == $params['facet_name']) {
        $values = (array) $params['facet_value']; // an array of post IDs (it's already unserialized)
        foreach($values as $val) {
            $params['facet_value'] = the_field('martygeocoderlatlng', $val);
            $params['facet_display_value'] = the_field('martygeocoderaddress', $val);
            $class -> insert($params); // insert each value to the database
        }
        // skip the default indexing query
        return false;
    }
    return $params;
}
add_filter('facetwp_index_row', 'my_facetwp_index_row', 10, 2);

?>