Meta Box

Hi Reinhard,

The Meta Box AIO plugin still requires Meta Box to work. MB Custom Post Type is a part of Meta Box AIO, and thus still needs Meta Box. The Meta Box AIO has all the extensions, but not Meta Box.

So, please just install Meta Box separately and they'll work. You'll need only Meta Box and Meta Box AIO.

Hi Sam, can you give a little more details on the bug? Do you see any error in the console?

Hi Hazmi,

The image field don't have any ajax request. It's a simple HTML5 file field. That probably is the reason why it's fast.

we have problems only in administration of website. The frontend is super fast with no problem and no errors. I read a lot of blog posts about admin-ajax that says that this file in more use cause WP very slow – that’s right.

Interesting. That might be related to the WP backend. Probably WP doesn't optimize the back end too much, especially if there are many plugins behave poorly on the back end.

What do you mean the old validation? It's still the same one. I just improved it.

Hi TGHP,

I've just updated the plugin to the version 2.0.0 with better server-side validation. Please see the updated documentation for details.

Sometimes, the Geocoder doesn't return precise coordinates (in some countries where OSM / Google Maps don't have enough data). In that case we should allow users to drag the pin to correct address.

I'll include the library into OSM field. Thanks for suggesting!

Can we validate after form submit using php backend validation if the image field is empty in-case as the front validation not works

Yes, you can do that. Here is a simple code that check for the field value before processing the form, and if it fails, redirect users to an error page:

add_filter( 'rwmb_frontend_validate', function( $is_valid, $config ) {
    if ( 'meta-box-id' !== $config['id'] ) {
        return $is_valid;
    }
    if ( empty( $_POST['image_upload_field'] ) ) {
        $is_valid = false;
    }
    return $is_valid;
}, 10, 2 );

Hi Neil,

I think your code snippet in the first reply works pretty well. I modify it a little bit to creates a shortcode for showing website screenshot. It takes URL from a field.

add_action( 'init', function() {
    add_shortcode( 'screenshot', function( $atts ) {
        $atts = shortcode_atts( [
            'width'  => 300,
            'height' => 300,
            'field'  => 'website_url',
        ], $atts );
        $url = rwmb_meta( $atts['field'] );
        if ( ! $url ) {
            return '';
        }
        $query_url =  'http://s.wordpress.com/mshots/v1/' . urlencode( $url ) . "?w={$width}&h={$height}";
        $image_tag = "<img width='$width' height='$height' src='$query_url'>";
        return "<a href='$url'>$image_tag</a>";
    } );
} );