public function AuthcacheNodeHistorySetting::get in Authenticated User Page Caching (Authcache) 7.2

Determine which comments need to be marked.

Overrides AuthcacheP13nSettingInterface::get

File

modules/authcache_node_history/includes/AuthcacheNodeHistorySetting.inc, line 28

Defines a personalized setting for retrieving the last time a node was seen.

Class

AuthcacheNodeHistorySetting

Personalized setting for retrieving the last time a node was seen.

Code

public function get($params, $context) {
  global $user;
  $tsmap = array();
  if ($user->uid) {
    if (!empty($params['n']) && is_array($params['n'])) {
      $tsmap = db_query_range('SELECT nid, timestamp FROM {history} WHERE uid = :uid AND nid IN (:nids)', 0, $this->selectLimit, array(
        ':uid' => $user->uid,
        ':nids' => $params['n'],
      ))
        ->fetchAllKeyed();
      if (!empty($_SESSION['authcache_node_history_last_viewed'])) {

        // After a page was cleared from the cache, the first user requesting
        // it will trigger a node_tag_new and update its last viewed
        // timestamp. Therefore it is necessary to preserve the original
        // last-viewed timestamp in the session, such that it can be retrieved
        // during the subsequent personalization phase.
        $history =& drupal_static('node_last_viewed', array());
        $history = $_SESSION['authcache_node_history_last_viewed'];
        foreach ($params['n'] as $nid) {
          if (isset($history[$nid])) {
            $tsmap[$nid] = $history[$nid]->timestamp;
          }
        }
      }
      unset($_SESSION['authcache_node_history_last_viewed']);
    }
    if (!empty($params['u']) && is_array($params['u'])) {
      $n = min(count($params['u']), $this->updateLimit);
      for ($i = 0; $i < $n; $i++) {

        // Update the 'last viewed' timestamp of the specified node for
        // current user. We do not want to use node_tag_new here because it
        // requires a node_load. The following code is directly copied from
        // node_tag_new.
        db_merge('history')
          ->key(array(
          'uid' => $user->uid,
          'nid' => intval($params['u'][$i]),
        ))
          ->fields(array(
          'timestamp' => REQUEST_TIME,
        ))
          ->execute();
      }
    }
  }
  $result = array();
  foreach ($tsmap as $nid => $ts) {
    $result[] = array(
      'nid' => $nid,
      'ts' => $ts,
    );
  }
  return $result;
}