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   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       * @param object $maint An object (typically of class Maintenance)
  34       * that implements two methods: handleOutput() and
  35       * purgeRedundantText().  See Maintenance for a description of
  36       * those methods.
  37       */
  38  	public static function doDelete( $maint ) {
  39          $dbw = wfGetDB( DB_MASTER );
  40  
  41          $dbw->begin( __METHOD__ );
  42  
  43          $tbl_arch = $dbw->tableName( 'archive' );
  44  
  45          # Delete as appropriate
  46          $maint->handleOutput( "Deleting archived revisions... " );
  47          $dbw->query( "DELETE FROM $tbl_arch" );
  48  
  49          $count = $dbw->affectedRows();
  50          $deletedRows = $count != 0;
  51  
  52          $maint->handleOutput( "done. $count revisions deleted.\n" );
  53  
  54          # This bit's done
  55          # Purge redundant text records
  56          $dbw->commit( __METHOD__ );
  57          if ( $deletedRows ) {
  58              $maint->purgeRedundantText( true );
  59          }
  60      }
  61  }