MediaWiki 1.30.2

[autoinstallsdev/mediawiki.git] / maintenance / populateBacklinkNamespace.php

diff --git a/maintenance/populateBacklinkNamespace.php b/maintenance/populateBacklinkNamespace.php
new file mode 100644 (file)
index 0000000..295dacd
--- /dev/null
+++ b/maintenance/populateBacklinkNamespace.php
@@ -0,0 +1,97 @@
+<?php
+/**
+ * Optional upgrade script to populate *_from_namespace fields
+ *
+ * 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 populate *_from_namespace fields
+ *
+ * @ingroup Maintenance
+ */
+class PopulateBacklinkNamespace extends LoggedUpdateMaintenance {
+       public function __construct() {
+               parent::__construct();
+               $this->addDescription( 'Populate the *_from_namespace fields' );
+               $this->addOption( 'lastUpdatedId', "Highest page_id with updated links", false, true );
+       }
+
+       protected function getUpdateKey() {
+               return 'populate *_from_namespace';
+       }
+
+       protected function updateSkippedMessage() {
+               return '*_from_namespace column of backlink tables already populated.';
+       }
+
+       public function doDBUpdates() {
+               $force = $this->getOption( 'force' );
+
+               $db = $this->getDB( DB_MASTER );
+
+               $this->output( "Updating *_from_namespace fields in links tables.\n" );
+
+               $start = $this->getOption( 'lastUpdatedId' );
+               if ( !$start ) {
+                       $start = $db->selectField( 'page', 'MIN(page_id)', false, __METHOD__ );
+               }
+               if ( !$start ) {
+                       $this->output( "Nothing to do." );
+                       return false;
+               }
+               $end = $db->selectField( 'page', 'MAX(page_id)', false, __METHOD__ );
+
+               # Do remaining chunk
+               $end += $this->mBatchSize - 1;
+               $blockStart = $start;
+               $blockEnd = $start + $this->mBatchSize - 1;
+               while ( $blockEnd <= $end ) {
+                       $this->output( "...doing page_id from $blockStart to $blockEnd\n" );
+                       $cond = "page_id BETWEEN $blockStart AND $blockEnd";
+                       $res = $db->select( 'page', [ 'page_id', 'page_namespace' ], $cond, __METHOD__ );
+                       foreach ( $res as $row ) {
+                               $db->update( 'pagelinks',
+                                       [ 'pl_from_namespace' => $row->page_namespace ],
+                                       [ 'pl_from' => $row->page_id ],
+                                       __METHOD__
+                               );
+                               $db->update( 'templatelinks',
+                                       [ 'tl_from_namespace' => $row->page_namespace ],
+                                       [ 'tl_from' => $row->page_id ],
+                                       __METHOD__
+                               );
+                               $db->update( 'imagelinks',
+                                       [ 'il_from_namespace' => $row->page_namespace ],
+                                       [ 'il_from' => $row->page_id ],
+                                       __METHOD__
+                               );
+                       }
+                       $blockStart += $this->mBatchSize - 1;
+                       $blockEnd += $this->mBatchSize - 1;
+                       wfWaitForSlaves();
+               }
+               return true;
+       }
+}
+
+$maintClass = "PopulateBacklinkNamespace";
+require_once RUN_MAINTENANCE_IF_MAIN;