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| 1 | <?php |
| 2 | /** |
| 3 | * Corrects wrong values in the `page_latest` field in the database. |
| 4 | * |
| 5 | * Copyright © 2005 Brooke Vibber <bvibber@wikimedia.org> |
| 6 | * https://www.mediawiki.org/ |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License along |
| 19 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 20 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 21 | * http://www.gnu.org/copyleft/gpl.html |
| 22 | * |
| 23 | * @file |
| 24 | * @ingroup Maintenance |
| 25 | */ |
| 26 | |
| 27 | use MediaWiki\Maintenance\Maintenance; |
| 28 | use MediaWiki\Title\Title; |
| 29 | use Wikimedia\Rdbms\IDBAccessObject; |
| 30 | |
| 31 | // @codeCoverageIgnoreStart |
| 32 | require_once __DIR__ . '/Maintenance.php'; |
| 33 | // @codeCoverageIgnoreEnd |
| 34 | |
| 35 | /** |
| 36 | * Maintenance script to correct wrong values in the `page_latest` field |
| 37 | * in the database. |
| 38 | * |
| 39 | * @ingroup Maintenance |
| 40 | */ |
| 41 | class AttachLatest extends Maintenance { |
| 42 | public function __construct() { |
| 43 | parent::__construct(); |
| 44 | $this->addOption( "fix", "Actually fix the entries, will dry run otherwise" ); |
| 45 | $this->addOption( "regenerate-all", |
| 46 | "Regenerate the page_latest field for all records in table page" ); |
| 47 | $this->addDescription( 'Fix page_latest entries in the page table' ); |
| 48 | } |
| 49 | |
| 50 | public function execute() { |
| 51 | $this->output( "Looking for pages with page_latest set to 0...\n" ); |
| 52 | $dbw = $this->getPrimaryDB(); |
| 53 | $conds = [ 'page_latest' => 0 ]; |
| 54 | if ( $this->hasOption( 'regenerate-all' ) ) { |
| 55 | $conds = []; |
| 56 | } |
| 57 | $result = $dbw->newSelectQueryBuilder() |
| 58 | ->select( [ 'page_id', 'page_namespace', 'page_title' ] ) |
| 59 | ->from( 'page' ) |
| 60 | ->where( $conds ) |
| 61 | ->caller( __METHOD__ ) |
| 62 | ->fetchResultSet(); |
| 63 | |
| 64 | $services = $this->getServiceContainer(); |
| 65 | $dbDomain = $services->getDBLoadBalancerFactory()->getLocalDomainID(); |
| 66 | $wikiPageFactory = $services->getWikiPageFactory(); |
| 67 | $revisionLookup = $services->getRevisionLookup(); |
| 68 | |
| 69 | $n = 0; |
| 70 | foreach ( $result as $row ) { |
| 71 | $pageId = intval( $row->page_id ); |
| 72 | $title = Title::makeTitle( $row->page_namespace, $row->page_title ); |
| 73 | $name = $title->getPrefixedText(); |
| 74 | $latestTime = $dbw->newSelectQueryBuilder() |
| 75 | ->select( 'MAX(rev_timestamp)' ) |
| 76 | ->from( 'revision' ) |
| 77 | ->where( [ 'rev_page' => $pageId ] ) |
| 78 | ->caller( __METHOD__ ) |
| 79 | ->fetchField(); |
| 80 | if ( !$latestTime ) { |
| 81 | $this->output( "$dbDomain $pageId [[$name]] can't find latest rev time?!\n" ); |
| 82 | continue; |
| 83 | } |
| 84 | |
| 85 | $revRecord = $revisionLookup->getRevisionByTimestamp( $title, $latestTime, IDBAccessObject::READ_LATEST ); |
| 86 | if ( $revRecord === null ) { |
| 87 | $this->output( |
| 88 | "$dbDomain $pageId [[$name]] latest time $latestTime, can't find revision id\n" |
| 89 | ); |
| 90 | continue; |
| 91 | } |
| 92 | |
| 93 | $id = $revRecord->getId(); |
| 94 | $this->output( "$dbDomain $pageId [[$name]] latest time $latestTime, rev id $id\n" ); |
| 95 | if ( $this->hasOption( 'fix' ) ) { |
| 96 | $page = $wikiPageFactory->newFromTitle( $title ); |
| 97 | $page->updateRevisionOn( $dbw, $revRecord ); |
| 98 | $this->waitForReplication(); |
| 99 | } |
| 100 | $n++; |
| 101 | } |
| 102 | $this->output( "Done! Processed $n pages.\n" ); |
| 103 | if ( !$this->hasOption( 'fix' ) ) { |
| 104 | $this->output( "This was a dry run; rerun with --fix to update page_latest.\n" ); |
| 105 | } |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | // @codeCoverageIgnoreStart |
| 110 | $maintClass = AttachLatest::class; |
| 111 | require_once RUN_MAINTENANCE_IF_MAIN; |
| 112 | // @codeCoverageIgnoreEnd |