I have a settings page with 9 meta boxes and I need to fire some code after the settings page is saved.
It looks like as of right now the only hook I can use is rwmb_after_{$meta_box_id}. Do I need to do an add_action 9 times or do you have a hook that will fire when a settings page is saved, like the WordPress action wp_insert_post?
If you don't, it would be nice and more efficient to trigger one action when all meta boxes in a page is saved.
Yes, you can do that with the hook mb_settings_page_load. It's the internal hook used to save the fields' values after the settings page is loaded. The process uses priority 10, so if you want to do something after that, you should use a higher priority, such as 20.
Here is an example:
add_action( 'mb_settings_page_load', function ( $args ) {
if ( $args['id'] === 'YOUR SETTINGS PAGE ID' ) {
// Do something
}
}, 20 );
.
