Maintenance script to reassign edits from one user to another

RELEASE-NOTES

@@ -135,6 +135,7 @@ Maintenance:
 * Maintenance script to delete unused text records
 * Maintenance script to delete non-current revisions
 * Maintenance script to wipe a page and all revisions from the database
+* Maintenance script to reassign edits from one user to another
 
 i18n / Languages:
 * Partial support for Basque language (from wikipedia and meta)

maintenance/reassignEdits.inc

@@ -0,0 +1,83 @@
+<?php
+
+/**
+ * Support functions for the reassignEdits script
+ *
+ * @package MediaWiki
+ * @subpackage Maintenance
+ * @author Rob Church <robchur@gmail.com>
+ */
+
+function ReassignEdits( $from, $to ) {
+
+	# This stuff needs to come off the master, wrapped in a transaction
+	$dbw =& wfGetDB( DB_MASTER );
+	$dbw->begin();
+
+	$tbl_arc = $dbw->tableName( 'archive' );	
+	$tbl_rev = $dbw->tableName( 'revision' );
+
+	$from_txt = $from['text'];
+	$to_id    = $to['id'];
+	$to_txt   = $to['text'];
+
+	echo( "Searching for current revisions..." );
+	$res = $dbw->query( "SELECT rev_id FROM $tbl_rev WHERE rev_user_text = \"$from_txt\"" );
+	while( $row = $dbw->fetchObject( $res ) ) {
+		$cur[] = $row->rev_id;
+	}
+	$ccount = count( $cur );
+	echo( "found $ccount.\n" );
+
+	echo( "Searching for deleted revisions..." );
+	$res = $dbw->query( "SELECT ar_rev_id FROM $tbl_arc WHERE ar_user_text = \"$from_txt\"" );
+	while( $row = $dbw->fetchObject( $res ) ){
+		$old[] = $row->ar_rev_id;
+	}
+	$ocount = count( $old );
+	echo( "found $ocount.\n" );
+
+	if( $ccount > 0 || $ocount > 0 ) {
+		echo( "Reassigning edits to $to_txt..." );
+	}
+
+	if( $ccount > 0 ) {
+		$set = implode( ', ', $cur );
+		$res = $dbw->query( "UPDATE $tbl_rev SET rev_user = $to_id, rev_user_text = \"$to_txt\" WHERE rev_id IN ( $set )" );
+	}
+
+	if( $ocount > 0 ) {
+		$set = implode( ', ', $old );
+		$res = $dbw->query( "UPDATE $tbl_arc SET ar_user = $to_id, ar_user_text = \"$to_txt\" WHERE ar_rev_id IN ( $set )" );
+	}
+
+	if( $ccount > 0 || $ocount > 0 ) {
+		echo( "done.\n" );
+	}
+
+	$dbw->commit();
+	return( true );	
+	
+}
+
+function GetUserDetails( $spec ) {
+
+	# IP addresses are quick to handle
+	if( User::isIP( $spec ) ) {
+		return( array( 'id' => 0, 'text' => $spec, 'valid' => true ) );
+	}
+
+	# Need to check the user exists and get ID and canonical username
+	$user = User::newFromName( $spec );
+	if( $user->getID() ) {
+		# We have them
+		return( array( 'id' => $user->getID(), 'text' => $user->getName(), 'valid' => true ) );
+	} else {
+		# No such user
+		return( array( 'id' => 0, 'text' => $spec, 'valid' => false ) );
+	}
+
+}
+
+
+?>

maintenance/reassignEdits.php

@@ -0,0 +1,42 @@
+<?php
+
+/**
+ * Reassign edits from a user or IP address to another user
+ *
+ * @package MediaWiki
+ * @subpackage Maintenance
+ * @author Rob Church <robchur@gmail.com>
+ */
+
+$options = array( 'force' );
+require_once( 'commandLine.inc' );
+require_once( 'reassignEdits.inc' );
+
+echo( "Reassign Edits\n\n" );
+
+if( @$args[0] && @$args[1] ) {
+
+	$from = GetUserDetails( $args[0] );
+	$to   = GetUserDetails( $args[1] );
+	$tor  = $args[1];
+	
+	if( $to['valid'] || @$options['force'] ) {
+		ReassignEdits( $from, $to );
+	} else {
+		echo( "User \"$tor\" not found.\n" );
+	}
+
+} else {
+	ShowUsage();
+}
+
+/** Show script usage information */
+function ShowUsage() {
+	echo( "Reassign edits from one user to another.\n\n" );
+	echo( "Usage: php reassignEdits.php <from> <to> [--force]\n\n" );
+	echo( "    <from> : Name of the user to assign edits from\n" );
+	echo( "      <to> : Name of the user to assign edits to\n" );
+	echo( "   --force : Reassign even if the target user doesn't exist\n\n" );
+}
+
+?>