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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\Plugins\CoreAdminHome\Tasks;
use Piwik\Concurrency\DistributedList;
use Piwik\Date;
/**
* Distributed list that holds a list of year-month archive table identifiers (eg, 2015_01 or 2014_11). Each item in the
* list is expected to identify a pair of archive tables that contain invalidated archives.
*
* The archiving purging scheduled task will read items in this list when executing the daily purge.
*
* This class is necessary in order to keep the archive purging scheduled task fast. W/o a way to keep track of
* tables w/ invalid data, the task would have to iterate over every table, which is not desired for a task that
* is executed daily.
*
* If users find other tables contain invalidated archives, they can use the core:purge-old-archive-data command
* to manually purge them.
*/
class ArchivesToPurgeDistributedList extends DistributedList
{
const OPTION_INVALIDATED_DATES_SITES_TO_PURGE = 'InvalidatedOldReports_DatesWebsiteIds';
public function __construct()
{
parent::__construct(self::OPTION_INVALIDATED_DATES_SITES_TO_PURGE);
}
/**
* @inheritdoc
*/
public function setAll($yearMonths)
{
$yearMonths = array_unique($yearMonths, SORT_REGULAR);
parent::setAll($yearMonths);
}
protected function getListOptionValue()
{
$result = parent::getListOptionValue();
$this->convertOldDistributedList($result);
return $result;
}
public function getAllAsDates()
{
$dates = array();
foreach ($this->getAll() as $yearMonth) {
try {
$date = Date::factory(str_replace('_', '-', $yearMonth) . '-01');
} catch (\Exception $ex) {
continue; // invalid year month in distributed list
}
$dates[] = $date;
}
return $dates;
}
public function removeDate(Date $date)
{
$yearMonth = $date->toString('Y_m');
$this->remove($yearMonth);
}
/**
* Before 2.12.0 Piwik stored this list as an array mapping year months to arrays of site IDs. If this is
* found in the DB, we convert the array to an array of year months to avoid errors and to make sure
* the correct tables are still purged.
*/
private function convertOldDistributedList(&$yearMonths)
{
foreach ($yearMonths as $key => $value) {
if (preg_match("/^[0-9]{4}_[0-9]{2}$/", $key)) {
unset($yearMonths[$key]);
$yearMonths[] = $key;
}
}
}
}
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