function content_lock_timeout_cron in Content locking (anti-concurrent editing) 6

Same name and namespace in other branches

1. 8.2 modules/content_lock_timeout/content_lock_timeout.module \content_lock_timeout_cron()
2. 8 modules/content_lock_timeout/content_lock_timeout.module \content_lock_timeout_cron()
3. 6.2 modules/content_lock_timeout/content_lock_timeout.module \content_lock_timeout_cron()
4. 7.3 modules/content_lock_timeout/content_lock_timeout.module \content_lock_timeout_cron()
5. 7 modules/content_lock_timeout/content_lock_timeout.module \content_lock_timeout_cron()
6. 7.2 modules/content_lock_timeout/content_lock_timeout.module \content_lock_timeout_cron()

Implementation of hook_cron().

Breaks batches of stale locks whenever the cron hooks are run. Inspired by original content_lock_cron() (leftover from the checkout module).

File

modules/content_lock_timeout/content_lock_timeout.module, line 56

Allowed time-based automatic unlocking of nodes locked for editing with content_lock.

Code

function content_lock_timeout_cron() {
  $timeout_minutes = variable_get('content_lock_timeout_minutes', 120);
  $last_valid_time = time() - 60 * $timeout_minutes;

  // We call content_lock_release() for each lock so that the
  // hook_content_lock_released may be invoked.
  $result = db_query('SELECT nid FROM {content_lock} WHERE timestamp < %d', $last_valid_time);
  $count = 0;
  while ($nid = db_result($result)) {
    content_lock_release($nid);
    $count++;
  }
  if ($count) {
    $period = format_interval($timeout_minutes * 60);
    watchdog('content_lock_timeout', 'Released @count stale node locks which lasted at least @period.', array(
      '@count' => $count,
      '@period' => $period,
    ));
  }
}