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<?php
/**
* HTML cache invalidation of all pages linking to a given title.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup Cache
*/
/**
* Class to invalidate the HTML cache of all the pages linking to a given title.
*
* @ingroup Cache
*/
class HTMLCacheUpdate implements DeferrableUpdate {
/** @var Title */
public $mTitle;
/** @var string */
public $mTable;
/**
* @param Title $titleTo
* @param string $table
*/
function __construct( Title $titleTo, $table ) {
$this->mTitle = $titleTo;
$this->mTable = $table;
}
public function doUpdate() {
$job = new HTMLCacheUpdateJob(
$this->mTitle,
array(
'table' => $this->mTable,
'recursive' => true
) + Job::newRootJobParams( // "overall" refresh links job info
"htmlCacheUpdate:{$this->mTable}:{$this->mTitle->getPrefixedText()}"
)
);
$count = $this->mTitle->getBacklinkCache()->getNumLinks( $this->mTable, 100 );
if ( $count >= 100 ) { // many backlinks
JobQueueGroup::singleton()->lazyPush( $job );
} else { // few backlinks ($count might be off even if 0)
$dbw = wfGetDB( DB_MASTER );
$dbw->onTransactionIdle( function () use ( $job ) {
$job->run(); // just do the purge query now
} );
}
}
}
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