1 files changed, 92 insertions, 0 deletions
diff --git a/www/wiki/maintenance/attachLatest.php b/www/wiki/maintenance/attachLatest.php
new file mode 100644
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+++ b/www/wiki/maintenance/attachLatest.php
@@ -0,0 +1,92 @@
+<?php
+/**
+ * Corrects wrong values in the `page_latest` field in the database.
+ *
+ * Copyright © 2005 Brion Vibber <brion@pobox.com>
+ * https://www.mediawiki.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @ingroup Maintenance
+ */
+
+require_once __DIR__ . '/Maintenance.php';
+
+/**
+ * Maintenance script to correct wrong values in the `page_latest` field
+ * in the database.
+ *
+ * @ingroup Maintenance
+ */
+class AttachLatest extends Maintenance {
+	public function __construct() {
+		parent::__construct();
+		$this->addOption( "fix", "Actually fix the entries, will dry run otherwise" );
+		$this->addOption( "regenerate-all",
+			"Regenerate the page_latest field for all records in table page" );
+		$this->addDescription( 'Fix page_latest entries in the page table' );
+	}
+
+	public function execute() {
+		$this->output( "Looking for pages with page_latest set to 0...\n" );
+		$dbw = $this->getDB( DB_MASTER );
+		$conds = [ 'page_latest' => 0 ];
+		if ( $this->hasOption( 'regenerate-all' ) ) {
+			$conds = '';
+		}
+		$result = $dbw->select( 'page',
+			[ 'page_id', 'page_namespace', 'page_title' ],
+			$conds,
+			__METHOD__ );
+
+		$n = 0;
+		foreach ( $result as $row ) {
+			$pageId = intval( $row->page_id );
+			$title = Title::makeTitle( $row->page_namespace, $row->page_title );
+			$name = $title->getPrefixedText();
+			$latestTime = $dbw->selectField( 'revision',
+				'MAX(rev_timestamp)',
+				[ 'rev_page' => $pageId ],
+				__METHOD__ );
+			if ( !$latestTime ) {
+				$this->output( wfWikiID() . " $pageId [[$name]] can't find latest rev time?!\n" );
+				continue;
+			}
+
+			$revision = Revision::loadFromTimestamp( $dbw, $title, $latestTime );
+			if ( is_null( $revision ) ) {
+				$this->output( wfWikiID()
+					. " $pageId [[$name]] latest time $latestTime, can't find revision id\n" );
+				continue;
+			}
+			$id = $revision->getId();
+			$this->output( wfWikiID() . " $pageId [[$name]] latest time $latestTime, rev id $id\n" );
+			if ( $this->hasOption( 'fix' ) ) {
+				$page = WikiPage::factory( $title );
+				$page->updateRevisionOn( $dbw, $revision );
+			}
+			$n++;
+		}
+		$this->output( "Done! Processed $n pages.\n" );
+		if ( !$this->hasOption( 'fix' ) ) {
+			$this->output( "This was a dry run; rerun with --fix to update page_latest.\n" );
+		}
+	}
+}
+
+$maintClass = AttachLatest::class;
+require_once RUN_MAINTENANCE_IF_MAIN;