From dbec80b4690dffa091e91f8356f9eaef4e0e529f Mon Sep 17 00:00:00 2001
From: Scott Taylor <scott.c.taylor@mac.com>
Date: Tue, 10 Sep 2013 23:10:09 +0000
Subject: [PATCH] Support `orderby => meta_value` in `WP_User_Query`. Adds unit
 test.

Props wpsmith.
Fixes #21581.


Built from https://develop.svn.wordpress.org/trunk@25331


git-svn-id: http://core.svn.wordpress.org/trunk@25293 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/user.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/wp-includes/user.php b/wp-includes/user.php
index ce4be5ec33..13cd9a36a4 100644
--- a/wp-includes/user.php
+++ b/wp-includes/user.php
@@ -435,6 +435,8 @@ class WP_User_Query {
 			$orderby = 'post_count';
 		} elseif ( 'ID' == $qv['orderby'] || 'id' == $qv['orderby'] ) {
 			$orderby = 'ID';
+		} elseif ( 'meta_value' == $qv['orderby'] ) {
+			$orderby = "$wpdb->usermeta.meta_value";
 		} else {
 			$orderby = 'user_login';
 		}