function recently_read_exit in Recently Read 7

Same name and namespace in other branches

1. 6 recently_read.module \recently_read_exit()
2. 7.2 recently_read.module \recently_read_exit()

Implements hook_exit().

File

./recently_read.module, line 121

Recently read module file. Displays a history of recently read nodes by currently logged in user.

Code

function recently_read_exit($destination = NULL) {
  global $user;

  //  drupal_bootstrap(DRUPAL_BOOTSTRAP_PATH);
  // track history for authenticated user
  if (arg(0) == 'node' && is_numeric(arg(1)) && arg(2) == '') {
    $nid = arg(1);

    // get node type
    $type = db_query('SELECT type FROM {node} WHERE nid = :nid', array(
      ':nid' => $nid,
    ))
      ->fetchField();

    // track history for authenticated user
    if (recently_read_is_enabled($type) && $user->uid) {
      $record = new stdClass();
      $record->nid = $nid;
      $record->type = $type;
      $record->uid = $user->uid;
      $record->timestamp = REQUEST_TIME;
      $count = db_query('SELECT COUNT(*) FROM {recently_read_nodes} WHERE nid = :nid AND uid = :uid AND type = :type', array(
        ':nid' => $nid,
        ':uid' => $user->uid,
        ':type' => $type,
      ))
        ->fetchField();

      // a node has been viewed before, make an update
      if ($count > 0) {
        drupal_write_record('recently_read_nodes', $record, array(
          'nid',
          'uid',
        ));
      }
      else {
        drupal_write_record('recently_read_nodes', $record);
      }
    }

    // track history for anonymous user
    if (recently_read_is_enabled($type) && !$user->uid && variable_get('recently_read_anonymous_enabled', FALSE)) {
      $key = "recently_read-{$type}";
      if (!isset($_SESSION[$key])) {
        $_SESSION[$key] = array();
      }

      // remove previous entry, if present
      unset($_SESSION[$key][$nid]);

      // add new entry at the beginning of array
      $title = db_query('SELECT title FROM {node} WHERE nid = :nid', array(
        ':nid' => $nid,
      ))
        ->fetchField();
      $entry = array(
        'nid' => $nid,
        'title' => $title,
        'type' => $type,
        'timestamp' => time(),
      );
      $_SESSION[$key] = array(
        $nid => $entry,
      ) + $_SESSION[$key];
      while (count($_SESSION[$key]) > variable_get('recently_read_max_entries', 10)) {
        array_pop($_SESSION[$key]);
      }
    }

    // remove old entries
    $nids = array();
    $first = variable_get('recently_read_max_entries', 10) + 1;
    $result = db_query_range("SELECT nid FROM {recently_read_nodes}\n      WHERE uid = :uid ORDER BY timestamp DESC", $first, 1000, array(
      ':uid' => $user->uid,
    ));
    while ($nid = $result
      ->fetchField()) {
      $nids[] = $nid;
    }
    if (count($nids)) {
      db_query("DELETE FROM {recently_read_nodes} WHERE uid = :uid AND nid IN(:nids)", array(
        ':uid' => $user->uid,
        ':nids' => $nids,
      ));
    }
  }
}