user_block

• Drupal 4.6
• Drupal 4.7
• Drupal 5
• Drupal 6

Versions

4.6 – 6

user_block($op = 'list', $delta = 0, $edit = array())

Implementation of hook_block().

Code

modules/user.module, line 479

<?php
function user_block($op = 'list', $delta = 0, $edit = array()) {
  global $user;

  if ($op == 'list') {
     $blocks[0]['info'] = t('User login');
     $blocks[1]['info'] = t('Navigation');
     $blocks[2]['info'] = t('Who\'s new');
     $blocks[3]['info'] = t('Who\'s online');

     return $blocks;
  }
  else if ($op == 'configure' && $delta == 3) {
    $period = drupal_map_assoc(array(30, 60, 120, 180, 300, 600, 900, 1800, 2700, 3600, 5400, 7200, 10800, 21600, 43200, 86400), 'format_interval');
    $output = form_select(t('User activity'), 'user_block_seconds_online', variable_get('user_block_seconds_online', 900), $period, t('A user is considered online for this long after they have last viewed a page.'));
    $output .= form_select(t('User list length'), 'user_block_max_list_count', variable_get('user_block_max_list_count', 10), drupal_map_assoc(array(0, 5, 10, 15, 20, 25, 30, 40, 50, 75, 100)), t('Maximum number of currently online users to display.'));

    return $output;
  }
  else if ($op == 'save' && $delta == 3) {
    variable_set('user_block_seconds_online', $edit['user_block_seconds_online']);
    variable_set('user_block_max_list_count', $edit['user_block_max_list_count']);
  }
  else if ($op == 'view') {
    $block = array();

    switch ($delta) {
      case 0:
        // For usability's sake, avoid showing two login forms on one page.
        if (!$user->uid && !(arg(0) == 'user' && !is_numeric(arg(1)))) {
          $edit = $_POST['edit'];

          $output = "<div class=\"user-login-block\">\n";

          // NOTE: special care needs to be taken because on pages with forms,
          // such as node and comment submission pages, the $edit variable
          // might already be set.

          $output .= form_textfield(t('Username'), 'name', $edit['name'], 15, 64);
          $output .= form_password(t('Password'), 'pass', $pass, 15, 64);
          $output .= form_submit(t('Log in'));
          $output .= "</div>\n";

          $output  = form($output, 'post', url('user/login', drupal_get_destination()));

          if (variable_get('user_register', 1)) {
            $items[] = l(t('Create new account'), 'user/register', array('title' => t('Create a new user account.')));
          }
          $items[] = l(t('Request new password'), 'user/password', array('title' => t('Request new password via e-mail.')));

          $output .= theme('item_list', $items);

          $block['subject'] = t('User login');
          $block['content'] = $output;
        }
        return $block;

      case 1:
        if ($menu = theme('menu_tree')) {
           $block['subject'] = $user->uid ? check_plain($user->name) : t('Navigation');
           $block['content'] = '<div class="menu">'. $menu .'</div>';
        }
        return $block;

      case 2:
        if (user_access('access content')) {
          $result = db_query_range('SELECT uid, name FROM {users} WHERE status != 0 ORDER BY uid DESC', 0, 5);
          while ($account = db_fetch_object($result)) {
            $items[] = format_name($account);
          }

          $output = theme('user_list', $items);

          $block['subject'] = t('Who\'s new');
          $block['content'] = $output;
        }
        return $block;

      case 3:
        if (user_access('access content')) {
          // Count users with activity in the past defined period.
          $time_period = variable_get('user_block_seconds_online', 2700);

          // Perform database queries to gather online user lists.
          $guests = db_fetch_object(db_query('SELECT COUNT(sid) AS count FROM {sessions} WHERE timestamp >= %d AND uid = 0', time() - $time_period));
          $users = db_query('SELECT DISTINCT(uid), MAX(timestamp) AS max_timestamp FROM {sessions} WHERE timestamp >= %d AND uid != 0 GROUP BY uid ORDER BY max_timestamp DESC', time() - $time_period );
          $total_users = db_num_rows($users);

          // Format the output with proper grammar.
          if ($total_users == 1 && $guests->count == 1) {
            $output = t('There is currently %members and %visitors online.', array('%members' => format_plural($total_users, '1 user', '%count users'), '%visitors' => format_plural($guests->count, '1 guest', '%count guests')));
          }
          else {
            $output = t('There are currently %members and %visitors online.', array('%members' => format_plural($total_users, '1 user', '%count users'), '%visitors' => format_plural($guests->count, '1 guest', '%count guests')));
          }

          // Display a list of currently online users.
          $max_users = variable_get('user_block_max_list_count', 10);
          if ($max_users) {
            $items = array();

            while ($max_users-- && $uid = db_fetch_object($users)) {
              $items[] = format_name(user_load(array('uid' => $uid->uid)));
            }

            if ($items) {
              if (db_fetch_object($users)) {
                $items[] = '...';
              }
              $output .= theme('item_list', $items, t('Online users:'));
            }
          }

          $block['subject'] = t('Who\'s online');
          $block['content'] = $output;
        }
        return $block;
    }
  }
}
?>

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