3 * Look for 'orphan' revisions hooked to pages which don't exist and
4 * 'childless' pages with no revisions.
5 * Then, kill the poor widows and orphans.
6 * Man this is depressing.
8 * Copyright © 2005 Brion Vibber <brion@pobox.com>
9 * https://www.mediawiki.org/
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License along
22 * with this program; if not, write to the Free Software Foundation, Inc.,
23 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
24 * http://www.gnu.org/copyleft/gpl.html
27 * @author <brion@pobox.com>
28 * @ingroup Maintenance
31 require_once __DIR__
. '/Maintenance.php';
34 * Maintenance script that looks for 'orphan' revisions hooked to pages which
35 * don't exist and 'childless' pages with no revisions.
37 * @ingroup Maintenance
39 class Orphans
extends Maintenance
{
40 public function __construct() {
41 parent
::__construct();
42 $this->mDescription
= "Look for 'orphan' revisions hooked to pages which don't exist\n" .
43 "and 'childless' pages with no revisions\n" .
44 "Then, kill the poor widows and orphans\n" .
45 "Man this is depressing";
46 $this->addOption( 'fix', 'Actually fix broken entries' );
49 public function execute() {
50 $this->checkOrphans( $this->hasOption( 'fix' ) );
51 $this->checkSeparation( $this->hasOption( 'fix' ) );
52 # Does not work yet, do not use
53 # $this->checkWidows( $this->hasOption( 'fix' ) );
57 * Lock the appropriate tables for the script
58 * @param DatabaseBase $db
59 * @param string $extraTable The name of any extra tables to lock (eg: text)
61 private function lockTables( $db, $extraTable = array() ) {
62 $tbls = array( 'page', 'revision', 'redirect' );
64 $tbls = array_merge( $tbls, $extraTable );
66 $db->lockTables( array(), $tbls, __METHOD__
, false );
70 * Check for orphan revisions
71 * @param bool $fix Whether to fix broken revisions when found
73 private function checkOrphans( $fix ) {
74 $dbw = wfGetDB( DB_MASTER
);
75 $page = $dbw->tableName( 'page' );
76 $revision = $dbw->tableName( 'revision' );
79 $this->lockTables( $dbw );
82 $this->output( "Checking for orphan revision table entries... (this may take a while on a large wiki)\n" );
83 $result = $dbw->query( "
85 FROM $revision LEFT OUTER JOIN $page ON rev_page=page_id
88 $orphans = $result->numRows();
91 $this->output( "$orphans orphan revisions...\n" );
92 $this->output( sprintf( "%10s %10s %14s %20s %s\n", 'rev_id', 'rev_page', 'rev_timestamp', 'rev_user_text', 'rev_comment' ) );
93 foreach ( $result as $row ) {
94 $comment = ( $row->rev_comment
== '' )
96 : '(' . $wgContLang->truncate( $row->rev_comment
, 40 ) . ')';
97 $this->output( sprintf( "%10d %10d %14s %20s %s\n",
101 $wgContLang->truncate( $row->rev_user_text
, 17 ),
104 $dbw->delete( 'revision', array( 'rev_id' => $row->rev_id
) );
108 $this->output( "Run again with --fix to remove these entries automatically.\n" );
111 $this->output( "No orphans! Yay!\n" );
115 $dbw->unlockTables( __METHOD__
);
121 * @todo DON'T USE THIS YET! It will remove entries which have children,
122 * but which aren't properly attached (eg if page_latest is bogus
123 * but valid revisions do exist)
125 private function checkWidows( $fix ) {
126 $dbw = wfGetDB( DB_MASTER
);
127 $page = $dbw->tableName( 'page' );
128 $revision = $dbw->tableName( 'revision' );
131 $this->lockTables( $dbw );
134 $this->output( "\nChecking for childless page table entries... (this may take a while on a large wiki)\n" );
135 $result = $dbw->query( "
137 FROM $page LEFT OUTER JOIN $revision ON page_latest=rev_id
140 $widows = $result->numRows();
142 $this->output( "$widows childless pages...\n" );
143 $this->output( sprintf( "%10s %11s %2s %s\n", 'page_id', 'page_latest', 'ns', 'page_title' ) );
144 foreach ( $result as $row ) {
145 printf( "%10d %11d %2d %s\n",
148 $row->page_namespace
,
151 $dbw->delete( 'page', array( 'page_id' => $row->page_id
) );
155 $this->output( "Run again with --fix to remove these entries automatically.\n" );
158 $this->output( "No childless pages! Yay!\n" );
162 $dbw->unlockTables( __METHOD__
);
167 * Check for pages where page_latest is wrong
168 * @param bool $fix Whether to fix broken entries
170 private function checkSeparation( $fix ) {
171 $dbw = wfGetDB( DB_MASTER
);
172 $page = $dbw->tableName( 'page' );
173 $revision = $dbw->tableName( 'revision' );
176 $this->lockTables( $dbw, array( 'user', 'text' ) );
179 $this->output( "\nChecking for pages whose page_latest links are incorrect... (this may take a while on a large wiki)\n" );
180 $result = $dbw->query( "
182 FROM $page LEFT OUTER JOIN $revision ON page_latest=rev_id
185 foreach ( $result as $row ) {
186 $result2 = $dbw->query( "
187 SELECT MAX(rev_timestamp) as max_timestamp
189 WHERE rev_page=$row->page_id
191 $row2 = $dbw->fetchObject( $result2 );
193 if ( $row->rev_timestamp
!= $row2->max_timestamp
) {
195 $this->output( sprintf( "%10s %10s %14s %14s\n",
196 'page_id', 'rev_id', 'timestamp', 'max timestamp' ) );
199 $this->output( sprintf( "%10d %10d %14s %14s\n",
203 $row2->max_timestamp
) );
206 $maxId = $dbw->selectField(
210 'rev_page' => $row->page_id
,
211 'rev_timestamp' => $row2->max_timestamp
) );
212 $this->output( "... updating to revision $maxId\n" );
213 $maxRev = Revision
::newFromId( $maxId );
214 $title = Title
::makeTitle( $row->page_namespace
, $row->page_title
);
215 $article = WikiPage
::factory( $title );
216 $article->updateRevisionOn( $dbw, $maxRev );
220 $this->output( "wtf\n" );
225 $this->output( "Found $found pages with incorrect latest revision.\n" );
227 $this->output( "No pages with incorrect latest revision. Yay!\n" );
229 if ( !$fix && $found > 0 ) {
230 $this->output( "Run again with --fix to remove these entries automatically.\n" );
234 $dbw->unlockTables( __METHOD__
);
239 $maintClass = "Orphans";
240 require_once RUN_MAINTENANCE_IF_MAIN
;