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It's been a while since I worked with jQuery; I think I'm making a stupid mistake.
Here is a Django widget:
class FooWidget(Widget):
# ...
class Media:
js = ('js/foowidget.js',)
Here is the .js file:
alert("bar");
$(document).ready(function() {
alert("omfg");
$('.foo-widget').click(function() {
alert("hi");
return false;
});
});
alert("foo");
The only alert() that fires is the first. Do I have a stupid syntax error or something?
Also, if some other included script on the page redefines $(document).ready, do I have to worry about it? I'm guessing that subsequent definitions will override mine, so it's safer for subsequent definitions to do something like:
$(document).ready(function() {
document.ready()
// real stuff
});
jQuery is already included in the page by the time foowidget.js is.
Update: Based on @lazerscience's link, I tried the following instead, but it still fails just as before:
alert("bar");
$(function() {
alert("omfg");
$(".set-widget").click(function() {
alert("hi");
return false;
});
});
alert("foo");
Update 2: Curiously, when I do:
alert($);
I get "undefined". This suggests that jQuery is actually not initialized. This confuses me, because the <head> includes:
<script type="text/javascript" src="/media/js/jquery.min.js"></script>
<script type="text/javascript" src="/media/js/jquery.init.js"></script>
<script type="text/javascript" src="/media/js/actions.min.js"></script>
<script type="text/javascript" src="/static/js/foowidget.js"></script>
Doesn't putting my script after the jQuery scripts ensure that $ will be defined?
Update 3: from jquery.min.js:
/*!
* jQuery JavaScript Library v1.4.2
* http://jquery.com/
*
* Copyright 2010, John Resig
* Dual licensed under the MIT or GPL Version 2 licenses.
* http://jquery.org/license
*
* Includes Sizzle.js
* http://sizzlejs.com/
* Copyright 2010, The Dojo Foundation
* Released under the MIT, BSD, and GPL Licenses.
*
* Date: Sat Feb 13 22:33:48 2010 -0500
*/
(function(A,w){function ma(){if(!c.isReady){try{s.documentElement.doScroll("left")}catch(a){setTimeout(ma,1);return}c.ready()}}function Qa(a,b){b.src?c.ajax({url:b.src,async:false,dataType:"script"}):c.globalEval(b.text||b.textContent||b.innerHTML||"");b.parentNode&&b.parentNode.removeChild(b)}function X(a,b,d,f,e,j){var i=a.length;if(typeof b==="object"){for(var o in b)X(a,o,b[o],f,e,d);return a}if(d!==w){f=!j&&f&&c.isFunction(d);for(o=0;o<i;o++)e(a[o],b,f?d.call(a[o],o,e(a[o],b)):d,j);return a}return i? /* ... */
Looks correct to me.
This is from the Firebug console:
Error: $ is not a function
[Break On This Error] $(function() {
foowidget.js (line 5)
>>> $
anonymous()
>>> jQuery
undefined
>>> $('a')
null
>>> $(document)
null
Update 4: $ is defined on all page of my Django site except the admin app. Odd...
Update 5: This is interesting.
jQuery.init.js:
// Puts the included jQuery into our own namespace
var django = {
"jQuery": jQuery.noConflict(true)
};
From the console:
>>> $
anonymous()
>>> django
Object {}
>>> django.jQuery
function()
>>> django.jQuery('a')
[a /admin/p..._change/, a /admin/logout/, a ../../, a ../, a.addlink add/]
880
Adding this to the top of my .js file fixes it:
var $ = django.jQuery;
I'm not sure how to remove the jquery.init.js file, given that my project doesn't contain any scripts that use $ for something other than jQuery.
151
i solved this problem on this way, you have to include jquery.init.js (often its jquery.init.js from admin) in this file add following lines:
var django = {
"jQuery": jQuery.noConflict(true)
};
var jQuery = django.jQuery;
var $=jQuery;
and u have in whole workspace jquery and $. For better code looking i prefer create my own jquery init file in project.
43
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