Prevent Authors from seeing other authors media files

Wordpress Privilege Author Media

// Prevent Authors from seeing other authors media files 
add_filter('parse_query', 'my_parse_query' );
function my_parse_query( $wp_query ) {
  // Only applicable for Media Library && Media Upload Dialog
  if (! preg_match('/wp-admin\/(?:upload|media-upload|admin-ajax).php/', $_SERVER['REQUEST_URI']) ) {
    return;
  }
  global $current_user;
  $user_roles = $current_user->roles;
  $user_role = array_shift($user_roles);
  if ($user_role && is_string($user_role) && strtolower($user_role)==='author') {
    $wp_query->set( 'author', $current_user->id );
  }
}

This is conflicting with Advanced Custom Fields, because ACF uses admin-ajax calls, so while this is the only function that hides other authors media from media upload dialog, it also prevents ACF from working in author profile.

Thanks for the heads up with ACF. I'll look into that when I get a chance! READ: Not for a while LOL

Hello
I already put this code into function.php
Right, another author only can view their own images.
But , as administrator I can not view all images in media library.
No one or more images display in media library as administrator.
Any idea ?
my site is http://www.propertypilihan.com

I am already upgrade wordpress to latest version , and as administrator I can see all images.
Your code running.
Thanks

As hlotvonen said, this code seems to conflict ACF .
So I recommend you to add .
if($wp_query->query_vars['post_type']!=='attachment'){ return; }

Regards.