function node_last_viewed

7.x node.module	`node_last_viewed($nid)`
6.x node.module	`node_last_viewed($nid)`

Retrieves the timestamp for the current user's last view of a specified node.

Parameters

$nid: A node ID.

Return value

If a node has been previously viewed by the user, the timestamp in seconds of when the last view occurred; otherwise, zero.

2 calls to node_last_viewed()

comment_num_new in drupal-7.x/modules/comment/comment.module: Get number of new comments for current user and specified node.
node_mark in drupal-7.x/modules/node/node.module: Determines the type of marker to be displayed for a given node.

File

drupal-7.x/modules/node/node.module, line 328: The core that allows content to be submitted to the site. Modules and scripts may programmatically submit nodes using the usual form API pattern.

Code

function node_last_viewed($nid) {
  global $user;
  $history = &drupal_static(__FUNCTION__, array());

  if (!isset($history[$nid])) {
    $history[$nid] = db_query("SELECT timestamp FROM {history} WHERE uid = :uid AND nid = :nid", array(':uid' => $user->uid, ':nid' => $nid))->fetchObject();
  }

  return (isset($history[$nid]->timestamp) ? $history[$nid]->timestamp : 0);
}