http://www.mediawiki.org/wiki/Special:Code/MediaWiki/63221
Revision: 63221
Author: vyznev
Date: 2010-03-03 20:23:42 +0000 (Wed, 03 Mar 2010)
Log Message:
-----------
(bug 18881) add maintenance script to populate rev_len field for old revisions
Added Paths:
-----------
trunk/phase3/maintenance/populateRevisionLength.php
Copied: trunk/phase3/maintenance/populateRevisionLength.php (from rev 63216,
trunk/phase3/maintenance/populateParentId.php)
===================================================================
--- trunk/phase3/maintenance/populateRevisionLength.php
(rev 0)
+++ trunk/phase3/maintenance/populateRevisionLength.php 2010-03-03 20:23:42 UTC
(rev 63221)
@@ -0,0 +1,92 @@
+<?php
+/*
+ * Makes the required database updates for rev_len
+ * to be of any use. It can be used for some simple tracking
+ * and to find new page edits by users.
+ *
+ * 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
+ *
+ * @ingroup Maintenance
+ */
+
+require_once( dirname(__FILE__) . '/Maintenance.php' );
+
+class PopulateRevisionLength extends Maintenance {
+ public function __construct() {
+ parent::__construct();
+ $this->mDescription = "Populates rev_len";
+ $this->setBatchSize( 200 );
+ }
+
+ public function execute() {
+ $db = wfGetDB( DB_MASTER );
+ if ( !$db->tableExists( 'revision' ) ) {
+ $this->error( "revision table does not exist", true );
+ }
+ $this->output( "Populating rev_len column\n" );
+ $start = $db->selectField( 'revision', 'MIN(rev_id)', false,
__FUNCTION__ );
+ $end = $db->selectField( 'revision', 'MAX(rev_id)', false,
__FUNCTION__ );
+ if( is_null( $start ) || is_null( $end ) ){
+ $this->output( "...revision table seems to be empty.\n"
);
+ $db->insert( 'updatelog',
+ array( 'ul_key' => 'populate rev_len' ),
+ __METHOD__,
+ 'IGNORE' );
+ return;
+ }
+ # Do remaining chunks
+ $blockStart = intval( $start );
+ $blockEnd = intval( $start ) + $this->mBatchSize - 1;
+ $count = 0;
+ while( $blockStart <= $end ) {
+ $this->output( "...doing rev_id from $blockStart to
$blockEnd\n" );
+ $res = $db->select( 'revision',
+ Revision::selectFields(),
+ array( "rev_id >= $blockStart",
+ "rev_id <= $blockEnd",
+ "rev_len IS NULL" ),
+ __METHOD__ );
+ # Go through and update rev_len from these rows.
+ foreach( $res as $row ) {
+ $rev = new Revision( $row );
+ $text = $rev->getRawText();
+ # Update the row...
+ $db->update( 'revision',
+ array( 'rev_len' => strlen( $text
) ),
+ array( 'rev_id' => $row->rev_id ),
+ __METHOD__ );
+ $count++;
+ }
+ $blockStart += $this->mBatchSize;
+ $blockEnd += $this->mBatchSize;
+ wfWaitForSlaves( 5 );
+ }
+ $logged = $db->insert( 'updatelog',
+ array( 'ul_key' => 'populate rev_len' ),
+ __METHOD__,
+ 'IGNORE' );
+ if( $logged ) {
+ $this->output( "rev_len population complete ...
{$count} rows changed\n" );
+ return true;
+ } else {
+ $this->output( "Could not insert rev_len population
row.\n" );
+ return false;
+ }
+ }
+}
+
+$maintClass = "PopulateRevisionLength";
+require_once( DO_MAINTENANCE );
Property changes on: trunk/phase3/maintenance/populateRevisionLength.php
___________________________________________________________________
Added: svn:mergeinfo
+ /branches/REL1_15/phase3/maintenance/populateParentId.php:51646
/branches/sqlite/maintenance/populateParentId.php:58211-58321
Added: svn:eol-style
+ native
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