From 10da99d18d9f90d144ffbbf204124b71bcf7c628 Mon Sep 17 00:00:00 2001
From: florianschmidtwelzow <florian.schmidt.welzow@t-online.de>
Date: Tue, 24 Jun 2014 18:18:53 +0200
Subject: [PATCH] Special:Watchlist: Don't try to render empty row

If no rows to render in table, show message and leave function before
trying to render.

Bug: 67025
Change-Id: Ica4ad670a130f31124ff644a2e1e50beea481c9b
---
 includes/specials/SpecialWatchlist.php | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/includes/specials/SpecialWatchlist.php b/includes/specials/SpecialWatchlist.php
index 2aec8dfec2..9c28d0679f 100644
--- a/includes/specials/SpecialWatchlist.php
+++ b/includes/specials/SpecialWatchlist.php
@@ -331,6 +331,14 @@ class SpecialWatchlist extends ChangesListSpecialPage {
 			$output->showLagWarning( $lag );
 		}
 
+		# If no rows to display, show message before try to render the list
+		if ( $rows->numRows() == 0 ) {
+			$output->wrapWikiMsg(
+				"<div class='mw-changeslist-empty'>\n$1\n</div>", 'recentchanges-noresult'
+			);
+			return;
+		}
+
 		$dbr->dataSeek( $rows, 0 );
 
 		$list = ChangesList::newFromContext( $this->getContext() );
@@ -370,13 +378,7 @@ class SpecialWatchlist extends ChangesListSpecialPage {
 		}
 		$s .= $list->endRecentChangesList();
 
-		if ( $rows->numRows() == 0 ) {
-			$output->wrapWikiMsg(
-				"<div class='mw-changeslist-empty'>\n$1\n</div>", 'recentchanges-noresult'
-			);
-		} else {
-			$output->addHTML( $s );
-		}
+		$output->addHTML( $s );
 	}
 
 	/**
-- 
2.20.1