function statistics_top_referrers

Page callback: Displays the "top referrers" in the access logs.

This displays the pages with the top referrers in a given time interval that haven't been flushed yet. The flush interval is set on the statistics settings form, but is dependent on cron running.

Return value

A render array containing the top referrers information.

File

modules/statistics/statistics.admin.inc, line 178

Code

function statistics_top_referrers() {
    drupal_set_title(t('Top referrers in the past %interval', array(
        '%interval' => format_interval(variable_get('statistics_flush_accesslog_timer', 259200)),
    )), PASS_THROUGH);
    $header = array(
        array(
            'data' => t('Hits'),
            'field' => 'hits',
            'sort' => 'desc',
        ),
        array(
            'data' => t('Url'),
            'field' => 'url',
        ),
        array(
            'data' => t('Last visit'),
            'field' => 'last',
        ),
    );
    $query = db_select('accesslog', 'a')->extend('PagerDefault')
        ->extend('TableSort');
    $query->addExpression('COUNT(url)', 'hits');
    $query->addExpression('MAX(timestamp)', 'last');
    $query->fields('a', array(
        'url',
    ))
        ->condition('url', '%' . $_SERVER['HTTP_HOST'] . '%', 'NOT LIKE')
        ->condition('url', '', '<>')
        ->groupBy('url')
        ->limit(30)
        ->orderByHeader($header);
    $count_query = db_select('accesslog', 'a', array(
        'target' => 'slave',
    ));
    $count_query->addExpression('COUNT(DISTINCT url)');
    $count_query->condition('url', '%' . $_SERVER['HTTP_HOST'] . '%', 'NOT LIKE')
        ->condition('url', '', '<>');
    $query->setCountQuery($count_query);
    $result = $query->execute();
    $rows = array();
    foreach ($result as $referrer) {
        $rows[] = array(
            $referrer->hits,
            _statistics_link($referrer->url),
            t('@time ago', array(
                '@time' => format_interval(REQUEST_TIME - $referrer->last),
            )),
        );
    }
    $build['statistics_top_referrers_table'] = array(
        '#theme' => 'table',
        '#header' => $header,
        '#rows' => $rows,
        '#empty' => t('No statistics available.'),
    );
    $build['statistics_top_referrers_pager'] = array(
        '#theme' => 'pager',
    );
    return $build;
}