// Implementation of hook_user().
//
// This just add a field in the user profile showing how much
//  quota this user has left.
function quota_by_role_user($op, &$edit, &$account, $category = NULL) {
  switch ($op) {
    case 'view':
      //We are in "My Account"
      //We check the quota of the user
      $sql_result1 = db_query("SELECT q.limit_to, q.per FROM {quota_by_role_rules} q JOIN {role} r ON (q.rid = r.rid) JOIN {users_roles} dur ON (r.rid = dur.rid) WHERE dur.uid = %d ORDER BY q.weight ASC,q.qid ASC LIMIT 1", $account->uid);
      //if useful, we check his posts
      if ($quota = db_fetch_object($sql_result1) and $account->uid != 1) {
        $count = (int)_quota_by_role_fetch_count('all', $quota->per, $account->uid);
        switch($quota->per) {
          case 60           : $per = t('minute'); break;
          case 60*60        : $per = t('hour');   break;
          case 60*60*24     : $per = t('day');    break;
          case 60*60*24*7   : $per = t('week');   break;
          case 60*60*24*30  : $per = t('month');  break;
          case 999999999    : $per = t('forever'); break;
        }
        return array(
          t('Quota left') => array(
            'Quota' => array(
              'title' => 'quota left',
              'value' => t('You have @left / @total posts left for the @period .', array('@left' => $quota->limit_to - $count, '@total' => $quota->limit_to, '@period' => $per)),
              'class' => 'member'
          )));
      }
      else {
        return array( t('Quota left') => array('Quota' =>array('title' => 'Global quota left', 'value' => t('You are not limited by any quota.'), 'class' => 'member')));
      }
      break;
  }
}