Fantastic. Thanks!
But for some reason the $content array only held an integer, not the image object. So I had to do an ugly workaround:
add_filter( 'meta_field_block_get_block_content', function ( $content,$attributes, $block, $post_id ) {
$field_name = $attributes['fieldName'] ?? '';
if ('your_image_field' === $field_name) {
$url = get_field( 'your_url_field', $post_id );
$image = get_field( 'your_image_field', $post_id );
if ( esc_url($url) ) {
$content = sprintf( '<a href="%1$s"><img src="%2$s"></a>', esc_url( $url ), $image );
}
}
return $content; }, 10, 4 );
When I added a standard Meta field block for only the image it was rendered correctly.
Note
<?php if ( current_theme_supports( "post-thumbnails" ) && isset( $instance["thumb"] ) && has_post_thumbnail() ) : ?>
<a href="<?php the_permalink(); ?>" title="<?php the_title_attribute(); ?>">
<?php the_post_thumbnail( 'latest_posts_thumb_size' . $this->id ); ?>
</a>
<?php endif; ?>
is now above the post-title section.
