On some sites with very mixed audiences I try to get people to use their full names as user names. Sometimes, couples share an account, and then I try to get them to use both of their names. This can result in some very long user names, and Drupal has a nasty habit of truncating after 15 characters.
Consider a couple with a user name of "Jane Doe and John Smith" — John probably won't be happy to get truncated...
To fix this for phptemplate themes, create or add to themes/your_theme/template.php the following code (originally taken from includes/theme.inc):
<?php /** * Catch the theme_username function (see http://drupal.org/node/11811 ) */ /** * Format a username. * * @param $object * The user object to format, usually returned from user_load(). * @return * A string containing an HTML link to the user's page if the passed object * suggests that this is a site user. Otherwise, only the username is returned. */ function phptemplate_username($object) { if ($object->uid && $object->name) { // Shorten the name when it is too long or it will break many tables. if (drupal_strlen($object->name) > 50) { //HS: raised from 20/15 to 50/48 $name = drupal_substr($object->name, 0, 48) .'...'; } else { $name = $object->name; } if (user_access('access user profiles')) { $output = l($name, 'user/'. $object->uid, array('title' => t('View user profile.'))); $output = substr_replace($output, 'style="white-space: normal;" ', 3, 0); //HS: allow line wrapping } else { $output = check_plain($name); } } else if ($object->name) { // Sometimes modules display content composed by people who are // not registered members of the site (e.g. mailing list or news // aggregator modules). This clause enables modules to display // the true author of the content. if ($object->homepage) { $output = l($object->name, $object->homepage); } else { $output = check_plain($object->name); } $output .= ' ('. t('not verified') .')'; } else { $output = variable_get('anonymous', 'Anonymous'); } return $output; } ?>
If the file is already there, then you may have to omit either or both of <?php and ?> in order to blend correctly into the context.