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<?php
/**
* Remove pages with only 1 revision from the MediaWiki namespace, without
* flooding recent changes, delete logs, etc.
* Irreversible (can't use standard undelete) and does not update link tables
*
* This is mainly useful to run before maintenance/update.php when upgrading
* to 1.9, to prevent flooding recent changes/deletion logs. It's intended
* to be conservative, so it's possible that a few entries will be left for
* deletion by the upgrade script. It's also possible that it hasn't been
* tested thouroughly enough, and will delete something it shouldn't; so
* back up your DB if there's anything in the MediaWiki that is important to
* you.
*
* @file
* @ingroup Maintenance
* @author Steve Sanbeg
* based on nukePage by Rob Church
*/
require_once( 'commandLine.inc' );
require_once( 'nukePage.inc' );
$ns = NS_MEDIAWIKI;
$delete = false;
if (isset($options['ns']))
{
$ns = $options['ns'];
}
if (isset( $options['delete'] ) and $options['delete'])
{
$delete = true;
}
NukeNS( $ns, $delete);
function NukeNS($ns_no, $delete) {
$dbw = wfGetDB( DB_MASTER );
$dbw->begin();
$tbl_pag = $dbw->tableName( 'page' );
$tbl_rev = $dbw->tableName( 'revision' );
$res = $dbw->query( "SELECT page_title FROM $tbl_pag WHERE page_namespace = $ns_no" );
$n_deleted = 0;
while( $row = $dbw->fetchObject( $res ) ) {
//echo "$ns_name:".$row->page_title, "\n";
$title = Title::newFromText($row->page_title, $ns_no);
$id = $title->getArticleID();
// Get corresponding revisions
$res2 = $dbw->query( "SELECT rev_id FROM $tbl_rev WHERE rev_page = $id" );
$revs = array();
while( $row2 = $dbw->fetchObject( $res2 ) ) {
$revs[] = $row2->rev_id;
}
$count = count( $revs );
//skip anything that looks modified (i.e. multiple revs)
if (($count == 1)) {
#echo $title->getPrefixedText(), "\t", $count, "\n";
echo "delete: ", $title->getPrefixedText(), "\n";
//as much as I hate to cut & paste this, it's a little different, and
//I already have the id & revs
if( $delete ) {
$dbw->query( "DELETE FROM $tbl_pag WHERE page_id = $id" );
$dbw->commit();
// Delete revisions as appropriate
DeleteRevisions( $revs );
PurgeRedundantText( true );
$n_deleted ++;
}
} else {
echo "skip: ", $title->getPrefixedText(), "\n";
}
}
$dbw->commit();
if ($n_deleted > 0) {
#update statistics - better to decrement existing count, or just count
#the page table?
$pages = $dbw->selectField('site_stats', 'ss_total_pages');
$pages -= $n_deleted;
$dbw->update( 'site_stats',
array('ss_total_pages' => $pages ),
array( 'ss_row_id' => 1),
__METHOD__ );
}
if (!$delete) {
echo( "To update the database, run the script with the --delete option.\n" );
}
}
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