Can't you use XMPP?
On Fri, Jun 11, 2010 at 12:36 PM, Euan Goddard
<euan.godd...@2degreesnetwork.com> wrote:
> If you're worried about the data getting out of order use a counter in
> JS and always ensure that you only update the page when you get the
> correct (i.e. current) counter back.
>
> I think what you're talking about isn't possible in normal HTTP. I
> think you have a one request, one response situation.
>
> Euan
>
> On Jun 11, 4:15 pm, Christoph <christophsieden...@gmail.com> wrote:
>> Hi,
>>
>> normally in views.py I have a function that takes a request and
>> returns a render_to_response or the like. I, however, would like it to
>> take a request and have Django reply with multiple responses. Is there
>> a way to do this, or is this not possible with HTTP anyway?
>>
>> What I am trying to achieve: Have a a view that gets called and in it
>> I have a JS/AJAX script that asks for some data. However, calculating
>> the data takes a while and it comes one after the other. So I thought
>> that I could send the data as soon as it becomes available.
>>
>> In my example I have a graph (using flot) and it would also look
>> natural to have the data points show up one by one.
>>
>> A different approach: Have JS ask for more data (using GET) until the
>> view responses sets a flag (NO_MORE_DATA = True). I don't like this,
>> since for me this looks like it defies the A in AJAX and the view
>> would lose all parameters (I.e. which points it already sent and which
>> not). However, I don't know much JS, nor AJAX nor do I understand the
>> HTTP protocol good enough.
>>
>> Maybe this has been done before? Is there a way of having server-side
>> generated AJAX-actions? Is there a way of having Django send something
>> within a views-function (as opposed to returning it at the end)?
>>
>> Some possible code:
>>
>> def my_view(request):
>> data =
>> MyModel.objects.filter('something').order_by('somethingelse')
>> for item in list(data): # Note, I don't do this but this is just
>> to show how what I want
>> send_json(do_something(item)) # send_json() is the crucial
>> (non-existing) function that I am looking for
>> return None # or maybe return Done or something like it
>>
>> Best regards,
>> Christoph
>
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