/**
* Purge expired restrictions from the flaggedpage_config table.
* The stable version of pages may change and invalidation may be required.
*/
public static function purgeExpiredConfigurations()
{
if (wfReadOnly()) {
return;
}
$dbw = wfGetDB(DB_MASTER);
# Find pages with expired configs...
$config = self::getDefaultVisibilitySettings();
// config is to be reset
$encCutoff = $dbw->addQuotes($dbw->timestamp());
$ret = $dbw->select(array('flaggedpage_config', 'page'), array('fpc_page_id', 'page_namespace', 'page_title'), array('page_id = fpc_page_id', 'fpc_expiry < ' . $encCutoff), __METHOD__);
# Figured out to do with each page...
$pagesClearConfig = array();
$pagesClearTracking = $titlesClearTracking = array();
foreach ($ret as $row) {
# If FlaggedRevs got "turned off" (in protection config)
# for this page, then clear it from the tracking tables...
if (FlaggedRevs::useOnlyIfProtected() && !$config['override']) {
$pagesClearTracking[] = $row->fpc_page_id;
// no stable version
$titlesClearTracking[] = Title::newFromRow($row);
// no stable version
}
$pagesClearConfig[] = $row->fpc_page_id;
// page with expired config
}
# Clear the expired config for these pages...
if (count($pagesClearConfig)) {
$dbw->delete('flaggedpage_config', array('fpc_page_id' => $pagesClearConfig, 'fpc_expiry < ' . $encCutoff), __METHOD__);
}
# Clear the tracking rows and update page_touched for the
# pages in $pagesClearConfig that do now have a stable version...
if (count($pagesClearTracking)) {
FlaggedRevs::clearTrackingRows($pagesClearTracking);
$dbw->update('page', array('page_touched' => $dbw->timestamp()), array('page_id' => $pagesClearTracking), __METHOD__);
}
# Also, clear their squid caches and purge other pages that use this page.
# NOTE: all of these updates are deferred via $wgDeferredUpdateList.
foreach ($titlesClearTracking as $title) {
FlaggedRevs::purgeSquid($title);
if (FlaggedRevs::inclusionSetting() == FR_INCLUDES_STABLE) {
FlaggedRevs::HTMLCacheUpdates($title);
// purge pages that use this page
}
}
}
/**
* (a) Update flaggedrevs page/tracking tables
* (b) Pages with stable versions that use this page will be purged
* Note: pages with current versions that use this page should already be purged
*/
public static function onArticleDelete(Page $article, $user, $reason, $id)
{
FlaggedRevs::clearTrackingRows($id);
FlaggedRevs::extraHTMLCacheUpdate($article->getTitle());
return true;
}
