Picio wrote:
> Hi Kent, ok I've decided to go through Django. Now the clue is to find
> some simple guide to
> output json from my model and maybe I can benefit also for the url
> dispatcher to map in a clean way the request coming from my ajax app.
>
> This is what I'd like to do:
>
> ajax app-> URL -> urls.py -> view.py -> ORM -> db
>
> then
>
> view -> json -> ajax app
>
> The second path is something I really have to figure out!
Here is the way I do it, with the real model name changed to xxx. Here
is the view:
def as_json(request, xxx_id):
''' Return a xxx in JSON format.
Required this version of django/core/serializers/json.py:
http://code.djangoproject.com/browser/django/trunk/django/core/serializers/json.py?rev=5302
'''
xxx = Xxx.objects.get(pk=int(xxx_id))
return HttpResponse(xxx.asJson(), mimetype='application/json')
Here is the asJson() method from the xxx model, slightly edited to
remove some extra hacks:
def asJson(self):
''' Return a JSON representation of ourself.
'''
from django.core import serializers
# A note about encoding
# xxx strings are encoded in UTF-8. That is the default
encoding for
# a JSON stream, so we just want to preserve the existing
characters
# which is what ensure_ascii=False does.
# If ensure_ascii=True, the individual bytes of the UTF-8 text
# will be encoded with \u escapes which is not at all correct
data = serializers.serialize('json', [self], ensure_ascii=False)
# Strip leading and trailing [] to make it a single xxx
data = data[1:-1]
return data
Kent
_______________________________________________
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
