From 7db738a09e4b3f4c2395fbd913889bc5f514a0f3 Mon Sep 17 00:00:00 2001
From: Happy-melon <happy-melon@users.mediawiki.org>
Date: Sun, 20 Sep 2009 18:53:17 +0000
Subject: [PATCH] New function for ExternalUser to get the local User
 corresponding to the external one.

---
 includes/ExternalUser.php | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/includes/ExternalUser.php b/includes/ExternalUser.php
index a5f932232e..ecb00971ec 100644
--- a/includes/ExternalUser.php
+++ b/includes/ExternalUser.php
@@ -285,4 +285,22 @@ abstract class ExternalUser {
 			       'eu_external_id' => $this->getId() ),
 		    __METHOD__ );
 	}
+	
+	/**
+	 * Check whether this external user id is already linked with
+	 * a local user.
+	 * @return Mixed User if the account is linked, Null otherwise.
+	 */
+	public final function getLocalUser(){
+		$dbr = wfGetDb( DB_SLAVE );
+		$row = $dbr->selectRow(
+			'external_user',
+			'*',
+			array( 'eu_external_id' => $this->getId() )
+		);
+		return $row
+			? User::newFromId( $row->fetchObject()->eu_wiki_id )
+			: null;
+	}
+	
 }
-- 
2.20.1