Dynamic Data

Hi Cris,

I would recommend using a static headline to show the label.

Then add a CSS class to the static headline, eg.hide-when-empty and the below PHP snippet, when the post meta field is empty, the static headline will not appear. Please replace the post_meta_field_name with your post meta field name.

add_filter( 'render_block', function( $block_content, $block ) {
    if (  ! empty( $block['attrs']['className'] ) && strpos( $block['attrs']['className'], 'hide-when-empty' ) !== false &&  empty (get_field('post_meta_field_name'))){
        $block_content = "";
    }

    return $block_content;
}, 10, 2 );

Adding PHP: https://docs.generatepress.com/article/adding-php/

Thanks Ying!
It works perfect but I want to make it for 8 different field labels. Do I repeat the process for each of them or is there another way?

Hi there,

is this in a GP Element ?

Hi David,

Yes, this is a Block Element of GP

In the GP Element the Container Block has a special option called: REMOVE CONTAINER CONDITION in its Layout Settings.
You can set it to No Post Meta and add you ACF Field name. Then use that as a wrapper for your Label and Field.

That works great! I could even put anything inside the block and it would still disappear.
Thanks a lot, David!

One more thing:
One of the custom fields contains emails and when displayed I would like it to do a "mailto:"
It could be done?

Try this PHP Snippet:

function db_rerender_email_url( $block_content, $block ) {
    if(!is_admin()){
        if ( 
            ! empty( $block['attrs']['className'] ) 
            && 'is-email' === $block['attrs']['className']  
        ) {
            $my_search='href="';
            $my_replace='href="mailto:';
            $new_content = str_replace($my_search, $my_replace, $block_content);
            return $new_content;
        } 
    }
    return $block_content;
}
add_filter( 'render_block', 'db_rerender_email_url', 10, 2 );

And the block that has the email field give it a class of is-email

It does not work

Did you give the block the class of is-email ?

Yes, I tried in the container block and in the headline block where the meta field is

Can i see the site where this meta is displayed?

okay
I'll send you a link in private

So that custom field you need to also set it as the Link Source. As the snippet above searches for the href in the <a> and currently you're just outputting it as static text.