How to set custom upload directory per user after moving content directory

Question

I set the content and the wordpress directory of wordpress like described in the codex:

define('WP_SITEURL', 'https://' . $_SERVER['SERVER_NAME'] . '/wordpress');
define('WP_CONTENT_DIR', dirname(__FILE__) . '/content');

Now what I want to do is set an individual upload directory for every user, like this:

wpinstance.org/content/uploads/user-name/here-goes-the-file.jpg

I already tried a lot using

define( 'UPLOADS', dirname(__FILE__) . '/content/uploads'.$current_user->user_name.'/');

as well as many combinations without dirname() and so on. It all turned out to take the files up to wordpress/…something and leaving the user name part empty. So how can I achieve this? Any ideas?

Answer 1

With credits to petermolnar via irc://freenode.net/wordpress I can answer my own question. The key is to set an upload-dir filter in the theme's functions.php:

function per_user_upload_dir( $original ){
    // use the original array for initial setup
    $modified = $original;
    // set our own replacements
    if ( is_user_logged_in() ) {
        $current_user = wp_get_current_user();
        $subdir = $current_user->user_login;
        $modified['subdir'] = $subdir;
        $modified['url'] = $original['baseurl'] . '/' . $subdir;
        $modified['path'] = $original['basedir'] . DIRECTORY_SEPARATOR . $subdir;
    }
    return $modified;
}
add_filter( 'upload_dir', 'per_user_upload_dir');

Answer 2

function per_user_upload_dir( $original ){
    // use the original array for initial setup
    $modified = $original;
    // set our own replacements
    if ( is_user_logged_in() ) {
        $current_user = wp_get_current_user();
        $subdir = $current_user->user_login;
        $modified['subdir'] = $subdir;
        $modified['url'] = $original['baseurl'] . '/' . $subdir;
        $modified['path'] = $original['basedir'] . DIRECTORY_SEPARATOR . $subdir;
    }
    return $modified;
}
add_filter( 'upload_dir', 'per_user_upload_dir');

it's worked for me... but is it possible to make another subfolder for all users, like uploads/users/ ? i want to keep all users content into users folder under the upload directory

Answer 3

Nice solution. The uploads folder might get a bit cluttered if many users are uploading. Easy fix is to change:

$subdir = $current_user->user_login;

to

$subdir = 'user_docs/'.$current_user->user_login;

The modified example below also only does this for a specific role (instructor)

function per_user_upload_dir( $original ){
  $modified = $original;
  if ( is_user_logged_in() && current_user_can('instructor') ) {
      $current_user = wp_get_current_user();
      $subdir = 'user_docs/'.$current_user->user_login;
      $modified['subdir'] = $subdir;
      $modified['url'] = $original['baseurl'] . '/' . $subdir;
      $modified['path'] = $original['basedir'] . DIRECTORY_SEPARATOR . $subdir;
  }
  return $modified;
}
add_filter( 'upload_dir', 'per_user_upload_dir');

Answer 4

on one of my sites this code works perfectly however on another it displays this error on the home page:

Warning: call_user_func_array() expects parameter 1 to be a valid callback, function 'per_user_upload_dir' not found or invalid function name in /home/users/xxx/public_html/xxx/wp-includes/class-wp-hook.php on line

What could be the cause? The template used is: Jaxon