From 7adbeb56156951c2ac37c45d9e13cc5c606f3996 Mon Sep 17 00:00:00 2001
From: Tim Starling <tstarling@users.mediawiki.org>
Date: Mon, 5 Jun 2006 05:21:12 +0000
Subject: [PATCH] Script to update user_registration to an approximation, for
 old rows.

---
 maintenance/fixUserRegistration.php | 31 +++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 maintenance/fixUserRegistration.php

diff --git a/maintenance/fixUserRegistration.php b/maintenance/fixUserRegistration.php
new file mode 100644
index 0000000000..af8a68c2b0
--- /dev/null
+++ b/maintenance/fixUserRegistration.php
@@ -0,0 +1,31 @@
+<?php
+/**
+ * Fix the user_registration field.
+ * In particular, for values which are NULL, set them to the date of the first edit
+ */
+
+require_once( 'commandLine.inc' );
+
+$fname = 'fixUserRegistration.php';
+
+$dbr =& wfGetDB( DB_SLAVE );
+$dbw =& wfGetDB( DB_MASTER );
+
+// Get user IDs which need fixing
+$res = $dbr->select( 'user', 'user_id', 'user_registration IS NULL', $fname );
+
+while ( $row = $dbr->fetchObject( $res ) ) {
+	$id = $row->user_id;
+	// Get first edit time
+	$timestamp = $dbr->selectField( 'revision', 'MIN(rev_timestamp)', array( 'rev_user' => $id ), $fname );
+	// Update
+	if ( !empty( $timestamp ) ) {
+		$dbw->update( 'user', array( 'user_registration' => $timestamp ), array( 'user_id' => $id ), $fname );
+		print "$id $timestamp\n";
+	} else {
+		print "$id NULL\n";
+	}
+}
+print "\n";
+
+?>
-- 
2.20.1