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DataUpdatesHooks.php
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DataUpdatesHooks.php
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<?php
/**
* DiscussionTools data updates hooks
*
* @file
* @ingroup Extensions
* @license MIT
*/
namespace MediaWiki\Extension\DiscussionTools\Hooks;
use MediaWiki\Deferred\DeferrableUpdate;
use MediaWiki\Deferred\MWCallableUpdate;
use MediaWiki\Extension\DiscussionTools\ThreadItemStore;
use MediaWiki\Revision\RenderedRevision;
use MediaWiki\Storage\Hook\RevisionDataUpdatesHook;
use MediaWiki\Title\Title;
use MWExceptionHandler;
use Throwable;
class DataUpdatesHooks implements RevisionDataUpdatesHook {
private ThreadItemStore $threadItemStore;
public function __construct(
ThreadItemStore $threadItemStore
) {
$this->threadItemStore = $threadItemStore;
}
/**
* @param Title $title
* @param RenderedRevision $renderedRevision
* @param DeferrableUpdate[] &$updates
* @return bool|void
*/
public function onRevisionDataUpdates( $title, $renderedRevision, &$updates ) {
// This doesn't trigger on action=purge, only on automatic purge after editing a template or
// transcluded page, and API action=purge&forcelinkupdate=1.
// TODO: Deduplicate the thread-item-processing done here with the Echo hook
// (which thread-item-processes the current and previous revisions).
$rev = $renderedRevision->getRevision();
if ( HookUtils::isAvailableForTitle( $title ) ) {
$method = __METHOD__;
$updates[] = new MWCallableUpdate( function () use ( $rev, $method ) {
try {
$threadItemSet = HookUtils::parseRevisionParsoidHtml( $rev, $method );
if ( !$this->threadItemStore->isDisabled() ) {
$this->threadItemStore->insertThreadItems( $rev, $threadItemSet );
}
} catch ( Throwable $e ) {
// Catch errors, so that they don't cause other updates to fail (T315383), but log them.
MWExceptionHandler::logException( $e );
}
}, __METHOD__ );
}
}
}

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