functions Facets ACF Relationship Fields

gistfile1.txt

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