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RevDelRevisionList.php
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RevDelRevisionList.php
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<?php
/**
* 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 RevisionDelete
*/
use MediaWiki\Cache\HTMLCacheUpdater;
use MediaWiki\Context\IContextSource;
use MediaWiki\HookContainer\HookContainer;
use MediaWiki\HookContainer\HookRunner;
use MediaWiki\MediaWikiServices;
use MediaWiki\Page\PageIdentity;
use MediaWiki\Revision\RevisionRecord;
use MediaWiki\Revision\RevisionStore;
use MediaWiki\Status\Status;
use MediaWiki\Title\Title;
use Wikimedia\Rdbms\FakeResultWrapper;
use Wikimedia\Rdbms\IResultWrapper;
use Wikimedia\Rdbms\LBFactory;
/**
* List for revision table items
*
* This will check both the 'revision' table for live revisions and the
* 'archive' table for traditionally-deleted revisions that have an
* ar_rev_id saved.
*
* See RevDelRevisionItem and RevDelArchivedRevisionItem for items.
*/
class RevDelRevisionList extends RevDelList {
/** @var LBFactory */
private $lbFactory;
/** @var HookRunner */
private $hookRunner;
/** @var HTMLCacheUpdater */
private $htmlCacheUpdater;
/** @var RevisionStore */
private $revisionStore;
/** @var int */
public $currentRevId;
/**
* @param IContextSource $context
* @param PageIdentity $page
* @param array $ids
* @param LBFactory $lbFactory
* @param HookContainer $hookContainer
* @param HTMLCacheUpdater $htmlCacheUpdater
* @param RevisionStore $revisionStore
*/
public function __construct(
IContextSource $context,
PageIdentity $page,
array $ids,
LBFactory $lbFactory,
HookContainer $hookContainer,
HTMLCacheUpdater $htmlCacheUpdater,
RevisionStore $revisionStore
) {
parent::__construct( $context, $page, $ids, $lbFactory );
$this->lbFactory = $lbFactory;
$this->hookRunner = new HookRunner( $hookContainer );
$this->htmlCacheUpdater = $htmlCacheUpdater;
$this->revisionStore = $revisionStore;
}
public function getType() {
return 'revision';
}
public static function getRelationType() {
return 'rev_id';
}
public static function getRestriction() {
return 'deleterevision';
}
public static function getRevdelConstant() {
return RevisionRecord::DELETED_TEXT;
}
public static function suggestTarget( $target, array $ids ) {
$revisionRecord = MediaWikiServices::getInstance()
->getRevisionLookup()
->getRevisionById( $ids[0] );
if ( $revisionRecord ) {
return Title::newFromLinkTarget( $revisionRecord->getPageAsLinkTarget() );
}
return $target;
}
/**
* @param \Wikimedia\Rdbms\IReadableDatabase $db
* @return IResultWrapper
*/
public function doQuery( $db ) {
$ids = array_map( 'intval', $this->ids );
$queryBuilder = $this->revisionStore->newSelectQueryBuilder( $db )
->joinComment()
->joinUser()
->joinPage()
->where( [ 'rev_page' => $this->page->getId(), 'rev_id' => $ids ] )
->orderBy( 'rev_id', \Wikimedia\Rdbms\SelectQueryBuilder::SORT_DESC )
// workaround for MySQL bug (T104313)
->useIndex( [ 'revision' => 'PRIMARY' ] );
MediaWikiServices::getInstance()->getChangeTagsStore()->modifyDisplayQueryBuilder( $queryBuilder, 'revision' );
$live = $queryBuilder->caller( __METHOD__ )->fetchResultSet();
if ( $live->numRows() >= count( $ids ) ) {
// All requested revisions are live, keeps things simple!
return $live;
}
$queryBuilder = $this->revisionStore->newArchiveSelectQueryBuilder( $db )
->joinComment()
->where( [ 'ar_rev_id' => $ids ] )
->orderBy( 'ar_rev_id', \Wikimedia\Rdbms\SelectQueryBuilder::SORT_DESC );
MediaWikiServices::getInstance()->getChangeTagsStore()->modifyDisplayQueryBuilder( $queryBuilder, 'archive' );
// Check if any requested revisions are available fully deleted.
$archived = $queryBuilder->caller( __METHOD__ )->fetchResultSet();
if ( $archived->numRows() == 0 ) {
return $live;
} elseif ( $live->numRows() == 0 ) {
return $archived;
} else {
// Combine the two! Whee
$rows = [];
foreach ( $live as $row ) {
$rows[$row->rev_id] = $row;
}
foreach ( $archived as $row ) {
$rows[$row->ar_rev_id] = $row;
}
krsort( $rows );
return new FakeResultWrapper( array_values( $rows ) );
}
}
public function newItem( $row ) {
if ( isset( $row->rev_id ) ) {
return new RevDelRevisionItem( $this, $row );
} elseif ( isset( $row->ar_rev_id ) ) {
return new RevDelArchivedRevisionItem( $this, $row, $this->lbFactory );
} else {
// This shouldn't happen. :)
throw new InvalidArgumentException( 'Invalid row type in RevDelRevisionList' );
}
}
public function getCurrent() {
if ( $this->currentRevId === null ) {
$dbw = $this->lbFactory->getPrimaryDatabase();
$this->currentRevId = $dbw->newSelectQueryBuilder()
->select( 'page_latest' )
->from( 'page' )
->where( [ 'page_namespace' => $this->page->getNamespace(), 'page_title' => $this->page->getDBkey() ] )
->caller( __METHOD__ )->fetchField();
}
return $this->currentRevId;
}
public function doPreCommitUpdates() {
Title::newFromPageIdentity( $this->page )->invalidateCache();
return Status::newGood();
}
public function doPostCommitUpdates( array $visibilityChangeMap ) {
$this->htmlCacheUpdater->purgeTitleUrls(
$this->page,
HTMLCacheUpdater::PURGE_INTENT_TXROUND_REFLECTED
);
// Extensions that require referencing previous revisions may need this
$this->hookRunner->onArticleRevisionVisibilitySet(
Title::newFromPageIdentity( $this->page ),
$this->ids,
$visibilityChangeMap
);
return Status::newGood();
}
}

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Expires
Sat, May 16, 13:40 (1 d, 22 h)
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RevDelRevisionList.php (6 KB)

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