maintenance/deleteRevision.php

   1 <?php
   2 /**
   3  * Delete one or more revisions by moving them to the archive table.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup Maintenance
  22  */
  23
  24 require_once __DIR__ . '/Maintenance.php';
  25
  26 /**
  27  * Maintenance script that deletes one or more revisions by moving them
  28  * to the archive table.
  29  *
  30  * @ingroup Maintenance
  31  */
  32 class DeleteRevision extends Maintenance {
  33
  34         public function __construct() {
  35                 parent::__construct();
  36                 $this->addDescription( 'Delete one or more revisions by moving them to the archive table' );
  37         }
  38
  39         public function execute() {
  40                 if ( count( $this->mArgs ) == 0 ) {
  41                         $this->error( "No revisions specified", true );
  42                 }
  43
  44                 $this->output( "Deleting revision(s) " . implode( ',', $this->mArgs ) .
  45                         " from " . wfWikiID() . "...\n" );
  46                 $dbw = $this->getDB( DB_MASTER );
  47
  48                 $affected = 0;
  49                 foreach ( $this->mArgs as $revID ) {
  50                         $dbw->insertSelect( 'archive', [ 'page', 'revision' ],
  51                                 [
  52                                         'ar_namespace' => 'page_namespace',
  53                                         'ar_title' => 'page_title',
  54                                         'ar_page_id' => 'page_id',
  55                                         'ar_comment' => 'rev_comment',
  56                                         'ar_user' => 'rev_user',
  57                                         'ar_user_text' => 'rev_user_text',
  58                                         'ar_timestamp' => 'rev_timestamp',
  59                                         'ar_minor_edit' => 'rev_minor_edit',
  60                                         'ar_rev_id' => 'rev_id',
  61                                         'ar_text_id' => 'rev_text_id',
  62                                         'ar_deleted' => 'rev_deleted',
  63                                         'ar_len' => 'rev_len',
  64                                 ],
  65                                 [
  66                                         'rev_id' => $revID,
  67                                         'page_id = rev_page'
  68                                 ],
  69                                 __METHOD__
  70                         );
  71                         if ( !$dbw->affectedRows() ) {
  72                                 $this->output( "Revision $revID not found\n" );
  73                         } else {
  74                                 $affected += $dbw->affectedRows();
  75                                 $pageID = $dbw->selectField(
  76                                         'revision',
  77                                         'rev_page',
  78                                         [ 'rev_id' => $revID ],
  79                                         __METHOD__
  80                                 );
  81                                 $pageLatest = $dbw->selectField(
  82                                         'page',
  83                                         'page_latest',
  84                                         [ 'page_id' => $pageID ],
  85                                         __METHOD__
  86                                 );
  87                                 $dbw->delete( 'revision', [ 'rev_id' => $revID ] );
  88                                 if ( $pageLatest == $revID ) {
  89                                         // Database integrity
  90                                         $newLatest = $dbw->selectField(
  91                                                 'revision',
  92                                                 'rev_id',
  93                                                 [ 'rev_page' => $pageID ],
  94                                                 __METHOD__,
  95                                                 [ 'ORDER BY' => 'rev_timestamp DESC' ]
  96                                         );
  97                                         $dbw->update(
  98                                                 'page',
  99                                                 [ 'page_latest' => $newLatest ],
 100                                                 [ 'page_id' => $pageID ],
 101                                                 __METHOD__
 102                                         );
 103                                 }
 104                         }
 105                 }
 106                 $this->output( "Deleted $affected revisions\n" );
 107         }
 108 }
 109
 110 $maintClass = "DeleteRevision";
 111 require_once RUN_MAINTENANCE_IF_MAIN;