function user_block_view in Drupal 7
Implements hook_block_view().
1 call to user_block_view()
- UserBlocksUnitTests::testWhosOnlineBlock in modules/
user/ user.test - Test the Who's Online block.
File
- modules/
user/ user.module, line 1434 - Enables the user registration and login system.
Code
function user_block_view($delta = '') {
global $user;
$block = array();
switch ($delta) {
case 'login':
// For usability's sake, avoid showing two login forms on one page.
if (!$user->uid && !(arg(0) == 'user' && !is_numeric(arg(1)))) {
$block['subject'] = t('User login');
$block['content'] = drupal_get_form('user_login_block');
}
return $block;
case 'new':
if (user_access('access content')) {
// Retrieve a list of new users who have subsequently accessed the site successfully.
$items = db_query_range('SELECT uid, name FROM {users} WHERE status <> 0 AND access <> 0 ORDER BY created DESC', 0, variable_get('user_block_whois_new_count', 5))
->fetchAll();
$output = theme('user_list', array(
'users' => $items,
));
$block['subject'] = t('Who\'s new');
$block['content'] = $output;
}
return $block;
case 'online':
if (user_access('access content')) {
// Count users active within the defined period.
$interval = REQUEST_TIME - variable_get('user_block_seconds_online', 900);
// Perform database queries to gather online user lists. We use s.timestamp
// rather than u.access because it is much faster.
$authenticated_count = db_query("SELECT COUNT(DISTINCT s.uid) FROM {sessions} s WHERE s.timestamp >= :timestamp AND s.uid > 0", array(
':timestamp' => $interval,
))
->fetchField();
$output = '<p>' . format_plural($authenticated_count, 'There is currently 1 user online.', 'There are currently @count users online.') . '</p>';
// Display a list of currently online users.
$max_users = variable_get('user_block_max_list_count', 10);
if ($authenticated_count && $max_users) {
$items = db_query_range('SELECT u.uid, u.name, MAX(s.timestamp) AS max_timestamp FROM {users} u INNER JOIN {sessions} s ON u.uid = s.uid WHERE s.timestamp >= :interval AND s.uid > 0 GROUP BY u.uid, u.name ORDER BY max_timestamp DESC', 0, $max_users, array(
':interval' => $interval,
))
->fetchAll();
$output .= theme('user_list', array(
'users' => $items,
));
}
$block['subject'] = t('Who\'s online');
$block['content'] = $output;
}
return $block;
}
}