function _forum_topics_unread

Calculates the number of new posts in a forum that the user has not yet read.

Nodes are new if they are newer than NODE_NEW_LIMIT.

Parameters

$term: The term ID of the forum.

$uid: The user ID.

Return value

The number of new posts in the forum that have not been read by the user.

File

modules/forum/forum.module, line 883

Code

function _forum_topics_unread($term, $uid) {
    $query = db_select('node', 'n');
    $query->join('forum', 'f', 'n.vid = f.vid AND f.tid = :tid', array(
        ':tid' => $term,
    ));
    $query->leftJoin('history', 'h', 'n.nid = h.nid AND h.uid = :uid', array(
        ':uid' => $uid,
    ));
    $query->addExpression('COUNT(n.nid)', 'count');
    return $query->condition('status', 1)
        ->condition('n.created', NODE_NEW_LIMIT, '>')
        ->isNull('h.nid')
        ->addTag('node_access')
        ->execute()
        ->fetchField();
}