From 48d03455f016d5652676a6f6407e96c324d248c2 Mon Sep 17 00:00:00 2001
From: ruado1987 <ruado1987@gmail.com>
Date: Sat, 23 Mar 2013 14:14:53 +0800
Subject: [PATCH] Fixes issue 401 which causes error when nested form created
 programatically by code or third-party library

---
 jquery.validate.js |  5 +++++
 test/index.html    |  4 ++++
 test/test.js       | 12 ++++++++++++
 3 files changed, 21 insertions(+)

diff --git a/jquery.validate.js b/jquery.validate.js
index c86bf6abe..d94cd25ff 100644
--- a/jquery.validate.js
+++ b/jquery.validate.js
@@ -480,6 +480,11 @@ $.extend($.validator, {
 					console.error( "%o has no name assigned", this);
 				}
 
+				// ignore elements of nested forms												
+				if ( this.form !== validator.currentForm ) {
+					return false;	
+				}
+				
 				// select only the first element for each name, and only those with rules specified
 				if ( this.name in rulesCache || !validator.objectLength($(this).rules()) ) {
 					return false;
diff --git a/test/index.html b/test/index.html
index bb9fc4ad8..52ceecf6e 100644
--- a/test/index.html
+++ b/test/index.html
@@ -318,6 +318,10 @@ <h3></h3>
 				<input id="bypassSubmitWithNoValidate1" type="submit" formnovalidate value="bypass1"/>
 				<input id="bypassSubmitWithNoValidate2" type="submit" formnovalidate="formnovalidate" value="bypass2"/>
 		</form>
+		
+		<form id="enclosingForm">
+			<input type="text" name="uname" class="required" />
+		</form>
 	</div>
 
 </body>
diff --git a/test/test.js b/test/test.js
index cdfa3edb2..5571aa0a6 100644
--- a/test/test.js
+++ b/test/test.js
@@ -841,6 +841,18 @@ test('bypassing validation on form submission',function () {
 	equal($v.numberOfInvalids(), 1, "Validation failed correctly");
 });
 
+test("elements() should ignore elements of nested forms", function() {
+	var validator,
+		$form = $( "#enclosingForm" );		
+	
+	$( "<form id='nestedForm-1'><input type='text' name='nested-uname-1' /></form> " ).appendTo( $form );
+	$( "<form id='nestedForm-2'><input type='text' name='nested-uname-2' /></form> " ).appendTo( $form );
+	$form[ 0 ].uname.value = "Test";	
+	
+	validator = $form.validate();
+	
+	equal( validator.elements().length, 1, "Elements of nested forms are ignored" );
+});
 
 module("misc");