function content_lock_timeout_cron in Content locking (anti-concurrent editing) 7

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. 6 modules/content_lock_timeout/content_lock_timeout.module \content_lock_timeout_cron()
5. 7.3 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 57

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', 30);
  $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.
  $query = db_select('content_lock', 'c')
    ->fields('c', array(
    'nid',
  ))
    ->condition('c.timestamp', $last_valid_time, '<');
  $count = 0;
  foreach ($query
    ->execute() as $obj) {
    content_lock_release($obj->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,
    ));
  }
}