maintenance/attachLatest.php

   1 <?php
   2 /**
   3  * Corrects wrong values in the `page_latest` field in the database.
   4  *
   5  * Copyright © 2005 Brion Vibber <brion@pobox.com>
   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 require_once __DIR__ . '/Maintenance.php';
  28
  29 /**
  30  * Maintenance script to correct wrong values in the `page_latest` field
  31  * in the database.
  32  *
  33  * @ingroup Maintenance
  34  */
  35 class AttachLatest extends Maintenance {
  36
  37         public function __construct() {
  38                 parent::__construct();
  39                 $this->addOption( "fix", "Actually fix the entries, will dry run otherwise" );
  40                 $this->addOption( "regenerate-all",
  41                         "Regenerate the page_latest field for all records in table page" );
  42                 $this->mDescription = "Fix page_latest entries in the page table";
  43         }
  44
  45         public function execute() {
  46                 $this->output( "Looking for pages with page_latest set to 0...\n" );
  47                 $dbw = wfGetDB( DB_MASTER );
  48                 $conds = array( 'page_latest' => 0 );
  49                 if ( $this->hasOption( 'regenerate-all' ) ) {
  50                         $conds = '';
  51                 }
  52                 $result = $dbw->select( 'page',
  53                         array( 'page_id', 'page_namespace', 'page_title' ),
  54                         $conds,
  55                         __METHOD__ );
  56
  57                 $n = 0;
  58                 foreach ( $result as $row ) {
  59                         $pageId = intval( $row->page_id );
  60                         $title = Title::makeTitle( $row->page_namespace, $row->page_title );
  61                         $name = $title->getPrefixedText();
  62                         $latestTime = $dbw->selectField( 'revision',
  63                                 'MAX(rev_timestamp)',
  64                                 array( 'rev_page' => $pageId ),
  65                                 __METHOD__ );
  66                         if ( !$latestTime ) {
  67                                 $this->output( wfWikiID() . " $pageId [[$name]] can't find latest rev time?!\n" );
  68                                 continue;
  69                         }
  70
  71                         $revision = Revision::loadFromTimestamp( $dbw, $title, $latestTime );
  72                         if ( is_null( $revision ) ) {
  73                                 $this->output( wfWikiID() . " $pageId [[$name]] latest time $latestTime, can't find revision id\n" );
  74                                 continue;
  75                         }
  76                         $id = $revision->getId();
  77                         $this->output( wfWikiID() . " $pageId [[$name]] latest time $latestTime, rev id $id\n" );
  78                         if ( $this->hasOption( 'fix' ) ) {
  79                                 $page = WikiPage::factory( $title );
  80                                 $page->updateRevisionOn( $dbw, $revision );
  81                         }
  82                         $n++;
  83                 }
  84                 $this->output( "Done! Processed $n pages.\n" );
  85                 if ( !$this->hasOption( 'fix' ) ) {
  86                         $this->output( "This was a dry run; rerun with --fix to update page_latest.\n" );
  87                 }
  88         }
  89 }
  90
  91 $maintClass = "AttachLatest";
  92 require_once RUN_MAINTENANCE_IF_MAIN;