Meta Box

Hi Peter,

thanks for your reply.

Thank you — however, I’d like to clarify something: as you can see in the attached screenshot, it is possible to enable timestamp on a regular time field in the UI (I’m using the latest MetaBox version).

The issue only appears once the field is placed inside a cloneable group — in that case, the timestamp option disappears and can no longer be enabled.

So to summarize:
• Time field outside a cloneable group → timestamp option is available
• Same time field inside a cloneable group → timestamp option is missing

Could you please check whether this is expected behavior or possibly a bug?

Thanks a lot for your help.

Best regards
Simon

I found the error. It doesn’t work when the second taxonomy is in a group.

Hi Peter,

Thank you so much for your prompt and helpful response! Your guidance was spot on, and using the rwmb_meta() function worked perfectly for our use case. We’re grateful for the detailed explanation and the resources you shared. 🙏

For anyone who might face a similar issue in the future, here’s the working code that generates a post title from custom fields stored in a custom table created with Metabox. This example is for a custom post type called veranstalter with the fields person_vorname and person_nachname in the custom table.

<?php
// Hook into Metabox's action after all custom fields in the "person" field group are saved
add_action('rwmb_person_after_save_post', function ($post_id) {
    // Ensure this only runs for the custom post type "veranstalter"
    if (get_post_type($post_id) !== 'veranstalter') {
        return;
    }

    // Use rwmb_meta() to retrieve values directly from the custom table
    $first_name = rwmb_meta('person_vorname', '', $post_id);
    $last_name = rwmb_meta('person_nachname', '', $post_id);

    // Check if both fields have values
    if (!empty($first_name) && !empty($last_name)) {
        // Generate the title by combining first and last name
        $title = trim("$first_name $last_name");

        // Generate a unique slug for the post
        $unique_slug = wp_unique_post_slug(sanitize_title($title), $post_id, 'publish', 'veranstalter', 0);

        // Update the post title and slug
        wp_update_post([
            'ID'         => $post_id,
            'post_title' => $title,
            'post_name'  => $unique_slug,
        ]);
    } else {
        error_log("First name or last name is missing for post_id $post_id");
    }
});

Screenshots