maintenance/deleteOrphanedRevisions.php

   1 <?php
   2
   3 /**
   4  * Maintenance script to delete revisions which refer to a nonexisting page
   5  * Sometimes manual deletion done in a rush leaves crap in the database
   6  *
   7  * @package MediaWiki
   8  * @subpackage Maintenance
   9  * @author Rob Church <robchur@gmail.com>
  10  * @todo More efficient cleanup of text records
  11  */
  12
  13 $options = array( 'report', 'help' );
  14 require_once( 'commandLine.inc' );
  15 require_once( 'deleteOrphanedRevisions.inc.php' );
  16 echo( "Delete Orphaned Revisions\n" );
  17
  18 if( isset( $options['help'] ) )
  19         showUsage();
  20
  21 $report = isset( $options['report'] );
  22
  23 $dbw =& wfGetDB( DB_MASTER );
  24 $dbw->immediateBegin();
  25 extract( $dbw->tableNames( 'page', 'revision' ) );
  26
  27 # Find all the orphaned revisions
  28 echo( "Checking for orphaned revisions..." );
  29 $sql = "SELECT rev_id FROM {$revision} LEFT JOIN {$page} ON rev_page = page_id WHERE page_namespace IS NULL";
  30 $res = $dbw->query( $sql, 'deleteOrphanedRevisions' );
  31
  32 # Stash 'em all up for deletion (if needed)
  33 while( $row = $dbw->fetchObject( $res ) )
  34         $revisions[] = $row->rev_id;
  35 $dbw->freeResult( $res );
  36 $count = count( $revisions );
  37 echo( "found {$count}.\n" );
  38
  39 # Nothing to do?
  40 if( $report || $count == 0 ) {
  41         $dbw->immediateCommit();
  42         exit();
  43 }
  44
  45 # Delete each revision
  46 echo( "Deleting..." );
  47 deleteRevisions( $revisions, $dbw );
  48 echo( "done.\n" );
  49
  50 # Close the transaction and call the script to purge unused text records
  51 $dbw->immediateCommit();
  52 require_once( 'purgeOldText.inc' );
  53 PurgeRedundantText( true );
  54
  55 ?>