Meta Box

Thanks Peter, I was able to restore a backup in staging and recover the post types and their custom fields and views in the database.

Typo, but result is the same...

jQuery(document).ready(function($) {
    // This fires when MB Frontend Form finishes saving
    $(document).on('rwmb_frontend_after_save', function(e, data) {
        console.log("✅ MB form saved, reloading now...", data);
        window.location.reload();
    });
});

You're right.
As the frontend submission form is loaded within a popup window and I have only the memberid (which is the page title) a used a get_posts with just 1 post.
I've changed it: upon clicking the pencil icon I store the post-id in a user meta field which I read in the View (from where the frontend submission is called).
Now it saves properly.

Now just another question arises: I've set the redirect url, but it doesn't reload the entire page. Ajax=false.
How can I reload the entire page, so that the saved changes become visible right after?

Peter, that's not what I want.

To illustrate this image: https://drive.google.com/file/d/1z-Leoi2ysHyBy6Ek1r7KldYSSp0Qs7UN/view?usp=sharing

I want to toggle, with immediate effect on the images shown. I don't want to submit.
How can I do that?

(It's just that the documentation says that it's saved in the database. So I added it as a user meta field. But I actually just need the toggle, switch on / off)

Hi,

I got a response from the support unit of my hosting provider.

After further investigation, I found that the issue is with the Metabox plugin, which is not compatible with the Object Caching feature. This explains why it functions correctly on the staging site, where Object Caching is not active.
Please note that disabling Object Cache is not recommended, as it can significantly impact server performance. I suggest reaching out to the developers of the Metabox plugin to inform them of this issue, as it seems their plugin is not designed to be compatible with the server’s Object Caching.

Can you pls have this checked and see if this can be resolved?
Thanks a lot, regards,
Eddy

I made a fresh copy in staging, and there it's working nicely.
I'm checking with the support team of my hosting provider. Hoepfully they can help solve it, or at least help understanding what / where to investigate. I may get back here.

OK, I was hoping / expecting that there would be an easy way to get this.

Gemini helped me.
This is the function I added to my functions.php:

/**
 * Gets a specific query string value from the URL.
 *
 * @param string $param_name The name of the query parameter to retrieve.
 * @return string|null The sanitized value or null if the parameter is not found.
 */
function get_query_param($param_name) {
    if (isset($_GET[$param_name])) {
        // Use sanitize_text_field to prevent security issues.
        return sanitize_text_field($_GET[$param_name]);
    }

    return null;
}

With mb.get_query_param('username') it's working nicely.

Perhaps others may benefit of this code, too.

Thanks Peter.

But then still, I get the error message 'Invalid request. Please try again' It's caused by the Redirect option. The URL I specify there is correct, pasting it to the url bar of the prowser shows the page correctly, but the redirect doesn't.

How to have the redirect working properly?