Prevent comment author name from truncating

Question

In Drupal 8, long comment author names are truncated. These comments are from anonymous users. When I use the following preprocess function, Drupal responds with a HTTP 500 code, and I have to restore the site from backup.

function THEME_preprocess_username(&$vars) {
    $vars['name'] = check_plain($vars['name_raw']);
}

Is there another way of removing the truncation from author names in comments?

Answer 1

You are likely getting an error because the check_plain() function doesn't exist in Drupal 8. Your error logs should be able to confirm that.

If you check the main template_preprocess_username() function where the truncated version of the name is set, you can see it uses User::getDisplayName() and then truncates that.

So you could do this:

function THEME_preprocess_username(&$variables) {
  $account = $variables['account'] ?: new AnonymousUserSession();
  $variables['name'] = $account->getDisplayName();
}

If you want to keep with the check_plain() approach from your example, in Drupal 8 you can use Html::escape().