From 643dbfd63a17d4af0796f8602d5d46a0068b9ed7 Mon Sep 17 00:00:00 2001
From: Debao Zhang <hello@debao.me>
Date: Mon, 6 Jan 2014 09:33:14 +0800
Subject: [PATCH] Don't generate .rel file for worksheet if its RelationShips
 is empty

---
 src/xlsx/xlsxpackage.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/xlsx/xlsxpackage.cpp b/src/xlsx/xlsxpackage.cpp
index 6c4bb8b..f41a91d 100644
--- a/src/xlsx/xlsxpackage.cpp
+++ b/src/xlsx/xlsxpackage.cpp
@@ -233,7 +233,9 @@ void Package::writeWorksheetFiles(ZipWriter &zipWriter)
             continue;
 
         zipWriter.addFile(QStringLiteral("xl/worksheets/sheet%1.xml").arg(i+1), sheet->saveToXmlData());
-        zipWriter.addFile(QStringLiteral("xl/worksheets/_rels/sheet%1.xml.rels").arg(i+1), sheet->relationships().saveToXmlData());
+        Relationships &rel = sheet->relationships();
+        if (!rel.isEmpty())
+            zipWriter.addFile(QStringLiteral("xl/worksheets/_rels/sheet%1.xml.rels").arg(i+1), rel.saveToXmlData());
     }
 }