Meta Box

Ok, thanks Peter. I will use the php.

However, I now have two questions:

1. For my radio fields it generates like 'options' => [__( 'One{/translate}', '{translate}Multiple', 'your-text-domain' )], - without my values. But my conditional logic is based on the values not the labels. Is this an error and do I need to edit the php to be something like: 'options' => [
'0' => __( 'One', 'your-text-domain' ),
'1' => __( 'Multiple', 'your-text-domain' )
],

2. Are the fields still serialized when I do it this way?

Thanks,
Yasmine

I am aware of that. My question was whether you had documentation / advice on the best way to do so.

I had some rogue custom settings and tabs when I looked into my fields, which Ive now stripped all of. So now no obvious 'critical error'. But still the form is not showing, not even with [mb_frontend_form id='research-summary' post_fields='title'] and I am still getting the following errors:

[11-Aug-2023 10:49:46 UTC] PHP Fatal error: Uncaught Error: Call to undefined function get_current_screen() in /public_html/wp-admin/includes/template.php:1481

 * @param string                 $id      Meta box ID (used in the 'id' attribute for the meta box).
 * @param string|array|WP_Screen $screen  The screen or screens on which the meta box is shown (such as a
 *                                        post type, 'link', or 'comment'). Accepts a single screen ID,
 *                                        WP_Screen object, or array of screen IDs.
 * @param string                 $context The context within the screen where the box is set to display.
 *                                        Contexts vary from screen to screen. Post edit screen contexts
 *                                        include 'normal', 'side', and 'advanced'. Comments screen contexts
 *                                        include 'normal' and 'side'. Menus meta boxes (accordion sections)
 *                                        all use the 'side' context.
 */
function remove_meta_box( $id, $screen, $context ) {
	global $wp_meta_boxes;

	if ( empty( $screen ) ) {
		$screen = get_current_screen(); // This is line 1481
	} elseif ( is_string( $screen ) ) {
		$screen = convert_to_screen( $screen );
	} elseif ( is_array( $screen ) ) {
		foreach ( $screen as $single_screen ) {
			remove_meta_box( $id, $single_screen, $context );
		}
	}

	if ( ! isset( $screen->id ) ) {
		return;
	}

	$page = $screen->id;

	if ( ! isset( $wp_meta_boxes ) ) {
		$wp_meta_boxes = array();
	}
	if ( ! isset( $wp_meta_boxes[ $page ] ) ) {
		$wp_meta_boxes[ $page ] = array();
	}
	if ( ! isset( $wp_meta_boxes[ $page ][ $context ] ) ) {
		$wp_meta_boxes[ $page ][ $context ] = array();
	}

	foreach ( array( 'high', 'core', 'default', 'low' ) as $priority ) {
		$wp_meta_boxes[ $page ][ $context ][ $priority ][ $id ] = false;
	}
}

Stack trace:
#0 /public_html/wp-content/plugins/meta-box/inc/fields/taxonomy.php(310): remove_meta_box('tagsdiv-type-of...', NULL, 'side')
#1 /public_html/wp-content/plugins/meta-box/inc/fields/taxonomy.php(301): RWMB_Taxonomy_Field::remove_default_meta_box(Array)
#2 /public_html/wp-content/plugins/meta-box/inc/field.php(535): RWMB_Taxonomy_Field::admin_enqueue_scripts(Array)
#3 /public_html/wp-content/plugins/meta-box-aio/vendor/meta-box/meta-box-group/group-field.php(52): RWMB_Field::call(Array, 'admin_enqueue_s...')
#4 /public_html/wp-content/plugins/meta-box/inc/field.php(535): RWMB_Group_Field::admin_enqueue_scripts(Array)
#5 /public_html/wp-admin/includes/template.php on line 1481

And just incase it matters - option_1 value shows

And just so you can see where I got up to (might be easier to explain where its going wrong):

add_action('init', function() {
    $args = array(
        'post_type' => 'research',
        'order' => 'DESC',
        'nopaging' => true,
    );
    $query = new WP_Query($args);

    if ($query->have_posts()) {
        while ($query->have_posts()) {
            $query->the_post();
            $valueToCopy = rwmb_meta('academicyear', '', $post->ID); // $IDofTheOriginalFieldIWantToMoveTheValueFrom
$year_groups = rwmb_meta('academicreference_group', '', $post->ID) ?? ''; // $GroupFieldID
  
foreach ($year_groups as $year_group) {
$year = $year_group['academicyear'] ?? ''; // $FieldIDInsideTheGroup 
}
rwmb_set_meta($post->ID, $year, $valueToCopy);
;
		}}}, 99);

Hi I will email the screenshots and code, as there is no way to share the images on here. Thanks for your help.

This group field is as follows:

<?php
$groups = rwmb_meta( 'resources_group' );
foreach ( $groups as $group ) {

// Field resource_or_database_type:
echo $group[ 'resource_or_database_type' ] ?? '';

// Field name_of_resource:
echo $group[ 'name_of_resource' ] ?? '';

// Field resource_details:
echo $group[ 'resource_details' ] ?? '';

// Field resource_link:
echo $group[ 'resource_link' ] ?? '';

}
?>

Which is a select, text, textarea, URL

In one case, the error showed when there were 3 group field values, that were filled as follows

FIRST GROUP FIELD CONFIG
1. Select: Value there, but not outputted
2. Text: TRUE
3. Text area: FALSE
4. URL: TRUE

SECOND GROUP FIELD CONFIG
1. Select: Value there, but not outputted
2. Text: TRUE
3. Text area: FALSE
4. URL: TRUE

THIRD GROUP FIELD CONFIG
1. Select: Value there, but not outputted
2. Text: TRUE
3. Text area: TRUE
4. URL: TRUE

The error showed beneath the first two fields, which had no value in the text area. When I added a space as the value in the text area for the first two, the error still showed. When the text area field was taken out of the MB Group Skin template, no error showed.

I think the error is due to there being no value in a field.