maintenance/deleteSelfExternals.php

   1 <?php
   2 /**
   3  * We want to make this whole thing as seamless as possible to the
   4  * end-user. Unfortunately, we can't do _all_ of the work in the class
   5  * because A) included files are not in global scope, but in the scope
   6  * of their caller, and B) MediaWiki has way too many globals. So instead
   7  * we'll kinda fake it, and do the requires() inline. <3 PHP
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  22  * http://www.gnu.org/copyleft/gpl.html
  23  *
  24  * @ingroup Maintenance
  25  */
  26
  27 require_once( dirname( __FILE__ ) . '/Maintenance.php' );
  28
  29
  30 class DeleteSelfExternals extends Maintenance {
  31         public function __construct() {
  32                 parent::__construct();
  33                 $this->mDescription = 'Delete self-references to $wgServer from externallinks';
  34                 $this->mBatchSize = 1000;
  35         }
  36
  37         public function execute() {
  38                 global $wgServer;
  39                 $this->output( "Deleting self externals from $wgServer\n" );
  40                 $db = wfGetDB( DB_MASTER );
  41                 while ( 1 ) {
  42                         wfWaitForSlaves( 2 );
  43                         $db->commit();
  44                         $q = $db->limitResult( "DELETE /* deleteSelfExternals */ FROM externallinks WHERE el_to"
  45                                 . $db->buildLike( $wgServer . '/', $db->anyString() ), $this->mBatchSize );
  46                         $this->output( "Deleting a batch\n" );
  47                         $db->query( $q );
  48                         if ( !$db->affectedRows() ) return;
  49                 }
  50         }
  51 }
  52
  53 $maintClass = "DeleteSelfExternals";
  54 require_once( DO_MAINTENANCE );