From 9d01ab564525f9112c2488ad257637593062b70d Mon Sep 17 00:00:00 2001
From: =?utf8?q?Holger=20R=C3=BCprich?= <holger@rueprich.de>
Date: Mon, 5 Jul 2010 06:29:09 +0800
Subject: [PATCH] Sortable: Return an empty URL param for empty sortable lists.
 Fixed #5794 - sortable("serialize", {key: "foo[]"}) returns an empty string
 for an empty list

---
 ui/jquery.ui.sortable.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ui/jquery.ui.sortable.js b/ui/jquery.ui.sortable.js
index a51f543c5..6cc2434e8 100644
--- a/ui/jquery.ui.sortable.js
+++ b/ui/jquery.ui.sortable.js
@@ -409,6 +409,10 @@ $.widget("ui.sortable", $.ui.mouse, {
 			if(res) str.push((o.key || res[1]+'[]')+'='+(o.key && o.expression ? res[1] : res[2]));
 		});
 
+		if(!str.length && o.key) {
+			str.push(o.key + '=');
+		}
+
 		return str.join('&');
 
 	},
-- 
2.39.5