function cron_site_data_daily()
{
require_once get_config('libroot') . 'registration.php';
$current = site_data_current();
$time = db_format_timestamp(time());
// Total users
insert_record('site_data', (object) array('ctime' => $time, 'type' => 'user-count-daily', 'value' => $current['users']));
// Logged-in users
$interval = is_postgres() ? "'1 day'" : '1 day';
$where = "lastaccess >= DATE(?) AND lastaccess < DATE(?)+ INTERVAL {$interval}";
insert_record('site_data', (object) array('ctime' => $time, 'type' => 'loggedin-users-daily', 'value' => count_records_select('usr', $where, array($time, $time))));
// Process log file containing view visits
$viewlog = get_config('dataroot') . 'log/views.log';
if (@rename($viewlog, $viewlog . '.temp') and $fh = @fopen($viewlog . '.temp', 'r')) {
// Read the new stuff out of the file
$latest = get_config('viewloglatest');
$visits = array();
while (!feof($fh)) {
$line = fgets($fh, 1024);
if (preg_match('/^\\[(\\d{4}-\\d{2}-\\d{2} \\d{2}:\\d{2}:\\d{2})\\] (\\d+)$/', $line, $m) && $m[1] > $latest) {
$visits[] = (object) array('ctime' => $m[1], 'view' => $m[2]);
}
}
fclose($fh);
// Get per-view counts for the view table.
$visitcounts = array();
foreach ($visits as &$v) {
if (!isset($visitcounts[$v->view])) {
$visitcounts[$v->view] = 0;
}
$visitcounts[$v->view]++;
}
// Add visit records to view_visit
foreach ($visits as &$v) {
if (record_exists('view', 'id', $v->view)) {
insert_record('view_visit', $v);
}
}
// Delete view_visit records > 1 week old
delete_records_select('view_visit', 'ctime < CURRENT_DATE - INTERVAL ' . (is_postgres() ? "'1 week'" : '1 WEEK'));
// Update view counts
foreach ($visitcounts as $viewid => $newvisits) {
execute_sql("UPDATE {view} SET visits = visits + ? WHERE id = ?", array($newvisits, $viewid));
}
set_config('viewloglatest', $time);
unlink($viewlog . '.temp');
}
require_once 'function.dirsize.php';
if ($diskusage = dirsize(get_config('dataroot'))) {
// Currently there is no need to track disk usage
// over time, so delete old records first.
delete_records('site_data', 'type', 'disk-usage');
insert_record('site_data', (object) array('ctime' => $time, 'type' => 'disk-usage', 'value' => $diskusage));
}
graph_site_data_daily();
}
function site_statistics($full = false)
{
$data = array();
if ($full) {
$data = site_data_current();
$data['weekly'] = true;
if (is_postgres()) {
$weekago = "CURRENT_DATE - INTERVAL '1 week'";
$thisweeksql = "(lastaccess > {$weekago})::int";
$todaysql = '(lastaccess > CURRENT_DATE)::int';
$eversql = "(NOT lastaccess IS NULL)::int";
} else {
$weekago = 'CURRENT_DATE - INTERVAL 1 WEEK';
$thisweeksql = "lastaccess > {$weekago}";
$todaysql = 'lastaccess > CURRENT_DATE';
$eversql = "NOT lastaccess IS NULL";
}
$sql = "SELECT SUM({$todaysql}) AS today, SUM({$thisweeksql}) AS thisweek, {$weekago} AS weekago, SUM({$eversql}) AS ever FROM {usr}";
$active = get_record_sql($sql);
$data['usersloggedin'] = get_string('loggedinsince', 'admin', $active->today, $active->thisweek, format_date(strtotime($active->weekago), 'strftimedateshort'), $active->ever);
$memberships = count_records_sql("\n SELECT COUNT(*)\n FROM {group_member} m JOIN {group} g ON g.id = m.group\n WHERE g.deleted = 0\n ");
$data['groupmemberaverage'] = round($memberships / $data['users'], 1);
$data['strgroupmemberaverage'] = get_string('groupmemberaverage', 'admin', $data['groupmemberaverage']);
$data['viewsperuser'] = get_field_sql("\n SELECT (0.0 + COUNT(id)) / NULLIF(COUNT(DISTINCT \"owner\"), 0)\n FROM {view}\n WHERE NOT \"owner\" IS NULL AND \"owner\" > 0\n ");
$data['viewsperuser'] = round($data['viewsperuser'], 1);
$data['strviewsperuser'] = get_string('viewsperuser', 'admin', $data['viewsperuser']);
}
$data['name'] = get_config('sitename');
$data['release'] = get_config('release');
$data['version'] = get_config('version');
$data['installdate'] = format_date(strtotime(get_config('installation_time')), 'strftimedate');
$data['dbsize'] = db_total_size();
$data['diskusage'] = get_field('site_data', 'value', 'type', 'disk-usage');
$data['cronrunning'] = !record_exists_select('cron', 'nextrun IS NULL OR nextrun < CURRENT_DATE');
$data['siteclosedbyadmin'] = get_config('siteclosedbyadmin');
if ($latestversion = get_config('latest_version')) {
$data['latest_version'] = $latestversion;
if ($data['release'] == $latestversion) {
$data['strlatestversion'] = get_string('uptodate', 'admin');
} else {
$download_page = 'https://launchpad.net/mahara/+download';
$data['strlatestversion'] = get_string('latestversionis', 'admin', $download_page, $latestversion);
}
}
return $data;
}