From 094f9887f429559f0338412fc6a85f8d126351e8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cezary=20Pi=C4=85tek?= <cezarypiatek@live.com>
Date: Wed, 9 Mar 2016 16:39:33 +0100
Subject: [PATCH] Prevent calling destroy when widget wasn't registered before

---
 src/jquery-ui.onobtrusive.min.js | 2 +-
 src/jquery-ui.unobtrusive.js     | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/jquery-ui.onobtrusive.min.js b/src/jquery-ui.onobtrusive.min.js
index df3f145..614877d 100644
--- a/src/jquery-ui.onobtrusive.min.js
+++ b/src/jquery-ui.onobtrusive.min.js
@@ -8,4 +8,4 @@
 * Modified by Andrew Cohen, 11/30/2011
 * TempWorks Software, Inc.
 */
-(function(n){"use strict";function r(t){var u=t.match(/function\s*\((.*?)\).*?\{(.*)\}$/),r,f,i;if(u){for(r=u[1].split(","),f="",i=0;i<r.length;i+=1)r[i]='"'+n.trim(r[i])+'"';return eval("new Function("+r.join(",")+', "'+u[2]+'")')}}var i=n.ui,t="data-ui-";i.unobtrusive={parse:function(r){n("*["+t+"fn]",r).each(function(){i.unobtrusive.parseElement(this)})},parseElement:function(i){var u=n(i),f=u[0];n.each(u.attr(t+"fn").split(" "),function(){var s=this,e,i={},o=t+s+"-";n.each(f.attributes,function(){var t=this,u;if(!t.specified)return!0;t.name.indexOf(o)===0&&(u=n.camelCase(t.name.substr(o.length)),i[u]=t.value.substr(0,8)==="function"?r(t.value):t.value)}),e=u[s]||n.noop,e.call(u,"destroy"),e.call(u,i)})}},n(function(){i.unobtrusive.parse(window.document)})})(window.jQuery)
\ No newline at end of file
+(function(n){"use strict";function r(t){var u=t.match(/function\s*\((.*?)\).*?\{(.*)\}$/),r,f,i;if(u){for(r=u[1].split(","),f="",i=0;i<r.length;i+=1)r[i]='"'+n.trim(r[i])+'"';return eval("new Function("+r.join(",")+', "'+u[2]+'")')}}var i=n.ui,t="data-ui-";i.unobtrusive={parse:function(r){n("*["+t+"fn]",r).each(function(){i.unobtrusive.parseElement(this)})},parseElement:function(i){var u=n(i),f=u[0];n.each(u.attr(t+"fn").split(" "),function(){var o=this,e,i={},s=t+o+"-";n.each(f.attributes,function(){var t=this,u;if(!t.specified)return!0;t.name.indexOf(s)===0&&(u=n.camelCase(t.name.substr(s.length)),i[u]=t.value.substr(0,8)==="function"?r(t.value):t.value)}),e=u[o]||n.noop,u.data(o)!==undefined&&e.call(u,"destroy"),e.call(u,i)})}},n(function(){i.unobtrusive.parse(window.document)})})(window.jQuery)
\ No newline at end of file
diff --git a/src/jquery-ui.unobtrusive.js b/src/jquery-ui.unobtrusive.js
index e1f44ba..a2d7c79 100644
--- a/src/jquery-ui.unobtrusive.js
+++ b/src/jquery-ui.unobtrusive.js
@@ -86,7 +86,8 @@
                 // get UI fn if it exists
                 uiFn = ($el[fn] || $.noop);
                 // call destroy to remove the ui widget
-                uiFn.call($el, 'destroy');
+                if ($el.data(fn) !== undefined)
+                    uiFn.call($el, 'destroy');
                 // call fn with options
                 uiFn.call($el, options);
             });