From 52b9436b69e9dbf95238b150dbdb48f3631ccffa Mon Sep 17 00:00:00 2001
From: =?utf8?q?S=C3=A9bastien=20Santoro?= <dereckson@espace-win.org>
Date: Thu, 28 Jul 2016 00:17:33 +0000
Subject: [PATCH] Fix Undefined variable issue in ApiQueryUserContributions
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit

Some ApiQueryUserContributions::prepareQuery code paths don't define
the $index array, but try to use it anyway.

That raises the following notice:
     Undefined variable: index
     in …/includes/api/ApiQueryUserContributions.php on line 340

This commit ensures we only try to use the variable when needed.

Bug: T141497
Change-Id: Ib9c038b84219bc1886139cb079a33aba74bc5220
---
 includes/api/ApiQueryUserContributions.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/includes/api/ApiQueryUserContributions.php b/includes/api/ApiQueryUserContributions.php
index 60e91e80ec..51e192325e 100644
--- a/includes/api/ApiQueryUserContributions.php
+++ b/includes/api/ApiQueryUserContributions.php
@@ -337,7 +337,9 @@ class ApiQueryContributions extends ApiQueryBase {
 			$this->addWhereFld( 'ct_tag', $this->params['tag'] );
 		}
 
-		$this->addOption( 'USE INDEX', $index );
+		if ( isset( $index ) ) {
+			$this->addOption( 'USE INDEX', $index );
+		}
 	}
 
 	/**
-- 
2.20.1