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<?php
/**
* Piwik - free/libre analytics platform
*
* @link http://piwik.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*
*/
namespace Piwik\DataAccess;
use Exception;
use Piwik\ArchiveProcessor\Rules;
use Piwik\Date;
use Piwik\Db;
use Piwik\Log;
use Piwik\Piwik;
/**
* Cleans up outdated archives
*
* @package Piwik\DataAccess
*/
class ArchivePurger
{
public static function purgeOutdatedArchives(Date $dateStart)
{
$purgeArchivesOlderThan = Rules::shouldPurgeOutdatedArchives($dateStart);
if (!$purgeArchivesOlderThan) {
return;
}
$idArchivesToDelete = self::getTemporaryArchiveIdsOlderThan($dateStart, $purgeArchivesOlderThan);
if (!empty($idArchivesToDelete)) {
self::deleteArchiveIds($dateStart, $idArchivesToDelete);
}
self::deleteArchivesWithPeriodRange($dateStart);
Log::debug("Purging temporary archives: done [ purged archives older than %s in %s ] [Deleted IDs: %s]",
$purgeArchivesOlderThan, $dateStart->toString("Y-m"), implode(',', $idArchivesToDelete));
}
protected static function getTemporaryArchiveIdsOlderThan(Date $date, $purgeArchivesOlderThan)
{
$query = "SELECT idarchive
FROM " . ArchiveTableCreator::getNumericTable($date) . "
WHERE name LIKE 'done%'
AND (( value = " . ArchiveWriter::DONE_OK_TEMPORARY . "
AND ts_archived < ?)
OR value = " . ArchiveWriter::DONE_ERROR . ")";
$result = Db::fetchAll($query, array($purgeArchivesOlderThan));
$idArchivesToDelete = array();
if (!empty($result)) {
foreach ($result as $row) {
$idArchivesToDelete[] = $row['idarchive'];
}
}
return $idArchivesToDelete;
}
/*
* Deleting "Custom Date Range" reports after 1 day, since they can be re-processed and would take up un-necessary space
*/
protected static function deleteArchivesWithPeriodRange(Date $date)
{
$query = "DELETE FROM %s WHERE period = ? AND ts_archived < ?";
$yesterday = Date::factory('yesterday')->getDateTime();
$bind = array(Piwik::$idPeriods['range'], $yesterday);
$numericTable = ArchiveTableCreator::getNumericTable($date);
Db::query(sprintf($query, $numericTable), $bind);
Log::debug("Purging Custom Range archives: done [ purged archives older than %s from %s / blob ]", $yesterday, $numericTable);
try {
Db::query(sprintf($query, ArchiveTableCreator::getBlobTable($date)), $bind);
} catch (Exception $e) {
// Individual blob tables could be missing
}
}
protected static function deleteArchiveIds(Date $date, $idArchivesToDelete)
{
$batches = array_chunk($idArchivesToDelete, 1000);
foreach($batches as $idsToDelete) {
$query = "DELETE FROM %s WHERE idarchive IN (" . implode(',', $idsToDelete) . ")";
Db::query(sprintf($query, ArchiveTableCreator::getNumericTable($date)));
try {
Db::query(sprintf($query, ArchiveTableCreator::getBlobTable($date)));
} catch (Exception $e) {
// Individual blob tables could be missing
}
}
}
}
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