jQuery getJSON Output using Python/Django
So, I'm trying to make a simple call using jQuery .getJSON to my local web server using python/django to serve up its requests. The address being used is:
http://localhost:8000/api/0.1/tonight-mobile.json?callback=jsonp1290277462296
I'm trying to write a simple web view that can access this url and return a JSON packet as the result (worried about actual element values/layout later).
Here's my simple attempt at just alerting/returning the data:
$.getJSON("http://localhost:8000/api/0.1/tonight-mobile.json&callback=?",
function(json){
alert(json);
<!--$.each(json.items, function(i,item){
});-->
});
I am able to access this URL directly, either at http://localhost:8000/api/0.1/tonight-mobile.json or http://localhost:8000/api/0.1/tonight-mobile.json&callback=jsonp1290277462296 and get back a valid JSON packet... So I'm assuming it's in my noob javascript:)
My views.py function that is generating this response looks as follows:
def tonight_mobile(request):
callback = request.GET.get('callback=?', '')
def with_rank(rank, place):
return (rank > 0)
place_data = dict(
Places = [make_mobile_place_dict(request, p)开发者_如何学C for p in Place.objects.all()]
)
xml_bytes = json.dumps(place_data)
xml_bytes = callback + '(' + xml_bytes + ');'
return HttpResponse(xml_bytes, mimetype="application/json")
With corresponding urls.py configuration:
(r'^tonight-mobile.json','iphone_api.views.tonight_mobile'),
I am still somewhat confused on how to use callbacks, so maybe that is where my issue lies. Note I am able to call directly a 'blah.json' file that is giving me a response, but not through a wired URL. Could someone assist me with some direction?
First, callback = request.GET.get('callback=?', '')
won't get you the value of callback
.
callback = request.GET.get( 'callback', None )
Works much better.
To debug this kind of thing. You might want to include print
statements in your Django view function so you can see what's going on. For example: print repr(request.GET)
is a helpful thing to put in a view function so that you can see the GET dictionary.
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