Reply To: Custom Fields on post Preview

• niq1982

• January 23, 2023 at 4:17 am

The options doesn’t work with the above fixes. I hooked to the hook in the end and simplified abit and it seems this works all the way: previews, blocks, post acf fields _and_ options:

function fix_acf_field_post_id_on_preview($post_id, $original_post_id)
{
    // Don't do anything to options
    if (is_string($post_id) && str_contains($post_id, 'option')) {
        return $post_id;
    }
    // Don't do anything to blocks
    if (is_string($original_post_id) && str_contains($original_post_id, 'block')) {
        return $post_id;
    }

    // This should only affect on post meta fields
    if (is_preview()) {
        return get_the_ID();
    }

    return $post_id;
}
add_filter('acf/validate_post_id', __NAMESPACE__ . '\fix_acf_field_post_id_on_preview', 10, 2);