maintenance/deleteArchivedRevisions.inc

   1 <?php
   2 /**
   3  * Helper methods for the deleteArchivedRevisions.php maintenance script.
   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 /**
  25  * Helper methods for the deleteArchivedRevisions.php maintenance script.
  26  *
  27  * @ingroup Maintenance
  28  */
  29 class DeleteArchivedRevisionsImplementation {
  30
  31         /**
  32          * Perform the delete on archived revisions.
  33
  34          * @param $maint Object An object (typically of class Maintenance)
  35          * that implements two methods: handleOutput() and
  36          * purgeRedundantText().  See Maintenance for a description of
  37          * those methods.
  38          */
  39         public static function doDelete( $maint ) {
  40                 $dbw = wfGetDB( DB_MASTER );
  41
  42                 $dbw->begin( __METHOD__ );
  43
  44                 $tbl_arch = $dbw->tableName( 'archive' );
  45
  46                 # Delete as appropriate
  47                 $maint->handleOutput( "Deleting archived revisions... " );
  48                 $dbw->query( "DELETE FROM $tbl_arch" );
  49
  50                 $count = $dbw->affectedRows();
  51                 $deletedRows = $count != 0;
  52
  53                 $maint->handleOutput( "done. $count revisions deleted.\n" );
  54
  55                 # This bit's done
  56                 # Purge redundant text records
  57                 $dbw->commit( __METHOD__ );
  58                 if ( $deletedRows ) {
  59                         $maint->purgeRedundantText( true );
  60                 }
  61         }
  62 }