Many thanks for the info.
The following works perfectly:
add_filter( 'ajax_query_attachments_args', 'show_audio_attachments', 10, 1 );
function show_audio_attachments( $query=array() ) {
if( $_POST['query']['_acfuploader'] && $_POST['query']['_acfuploader'] == 'field_589471f6b171a' ) {
$query['post_mime_type'] = 'audio';
}
return $query;
}
The downside may be is that it relies on hard coded field reference, but if I’m to change the fields structure I’ll have other problems to deal with anyways.
Also I have to make it work with Media Library Assistant plugin.
I’ll keep you posted…
