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I put together a simple test of an ajax/jquery post within a django framework, but don't really understand why the output doesn't make it to a template page. Anyone?
I can see the contents of the post in firebug's 'response' tab, but whether I try to return a template or a simple message, nothing happens in the browser itself. Conversely, a non-ajax post works as expected (loads new page, posts message)
I'm a complete newbie to ajax/jquery/django so please excuse my ignorance :)
Eventually, what I'd like to be able to do is to pass arbitrary, non-form variables to a django view via jquery. Possible? Thank you :)
Here's the code --
test.html:
<html>
<head>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js"></script></javascript>
<script type="text/javascript">
$(document).ready(function() {
$("#testForm").submit(function(event){
event.preventDefault();
$.ajax({
type:"POST",
url:"/test_results/"
});
});
return false;
});
</script>
</head>
<body>
<form id="testForm" action="/test_results/" method="post">
<input type="submit" id="go" name="go" value="Go!">
</form>
</body>
</html>
views.py:
from django.shortcuts import render_to_response
from django.http import HttpResponse
def test_ajax(request):
if request.is_ajax():
message = "Yes, AJAX!"
else:
message = "Not Ajax"
return HttpResponse(message)
#alternative test: return render_to_response('test_results.html')
urls.py:
(r'^test_results/$', views.test_ajax),
(r'^test/$', views.test),
and the almost empty test_results.html:
<html>
<head>
</head>
<body>
test results
</body>
</html>
527
I can see the contents of the post in firebug's 'response' tab, but whether I try to return a template or a simple message, nothing happens in the browser itself. Conversely, a non-ajax post works as expected (loads new page, posts message)
If you're getting a response, you're getting a response. You're just not doing anything with it.
Why not alert the data and append it to the <body> for example:
$.ajax({
type:"POST",
url:"/test_results/",
data: {
'arbitrary-data': 'this is arbitrary data',
'some-form-field': $("myform input:first").val(), // from form
'background-color': $("body").css("background-color")
// all of this data is submitted via POST to your view.
// in django, request.POST['background-color']
},
success: function(data){
alert(data);
$("body").append(data);
}
});
You need to add a handler for the response returned by the view:
$.ajax({
type:"POST",
url:"/test_results/",
dataType: "json",
success: function(json)
{
//specifying a dataType of json makes jQuery pre-eval the response for us
console.log(json.message);
}
});
You'll probably also want to encode the response as JavaScript in your view:
try:
import json
except ImportError:
import simplejson
def my_view(request):
if request.is_ajax():
return HttpResponse(json.dumps({'message' : 'awesome'},
ensure_ascii=False), mimetype='application/javascript')
Hope that helps you out!
21
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