request.POST.getlist() Results In Single Element List

[Arturo]

I was expecting my POST data to end up with a 17 element list after
using getlist(), but I end up with all the data in a single element.
I've tried to reformat the data before it's sent by removing the '[]
and different things', but I still end up with a single element.

This is my first Django and first Python project. Am I missing
something, or misunderstanding how th
e QueryDict works?


My setup is:

OSX 10.4.11
Python 2.5.1
Django version 0.97-pre-SVN-7124

Using the following to send a list to my view

template:
{% if rider_list %}
<ol id="sortedriders">
{% for r in rider_list %}
<li id="pick_{{ r.id }}">
{{ r.rider.number|stringformat:" 3d" }}
{{ r.rider.first_name }} {{ r.rider.last_name }}
</li>
{% endfor %}
</ol>
{% else %}
<p>No Riders to list</p>
{% endif %}


Sortable.create("sortedriders", {
onUpdate: function() {
new Ajax.Request("sort/", {
method: "post", asynchronous:true,
parameters: { data: Sortable.serialize("sortedriders") }
});
}
});


views.py
def sort(request):

if request.method == 'POST':

data = request.POST.getlist("data")
logging.debug(repr(data))
logging.debug(data[0])

# everything else deleted out of frustration :)

return HttpResponse('OK')



output:
DEBUG:root:
[u'sortedriders[]=22&sortedriders[]=21&sortedriders[]=25&sortedriders[]=26&sortedriders[]=23&sortedriders[]=27&sortedriders[]=28&sortedriders[]=24&sortedriders[]=29&sortedriders[]=30&sortedriders[]=31&sortedriders[]=32&sortedriders[]=33&sortedriders[]=34&sortedriders[]=35&sortedriders[]=36&sortedriders[]=37']
DEBUG:root:sortedriders[]=22&sortedriders[]=21&sortedriders[]=25&sortedriders[]=26&sortedriders[]=23&sortedriders[]=27&sortedriders[]=28&sortedriders[]=24&sortedriders[]=29&sortedriders[]=30&sortedriders[]=31&sortedriders[]=32&sortedriders[]=33&sortedriders[]=34&sortedriders[]=35&sortedriders[]=36&sortedriders[]=37

[Doug B]

I'd suggest doing a repr on request.POST and seeing exactly what is
being posted. Your use of getlist usage looks ok, so I'd guess
something is happening on the javascript side.

[Arturo]

On Feb 16, 10:11 am, Doug B <dball...@gmail.com> wrote:
> I'd suggest doing a repr on request.POST and seeing exactly what is
> being posted.  

Ok, I added logging.debug(repr(request.POST)) and got this:

DEBUG:root:<QueryDict: {u'data':
[u'sortedriders[]=22&sortedriders[]=21&sortedriders[]=24&sortedriders[]=25&sortedriders[]=23&sortedriders[]=26&sortedriders[]=27&sortedriders[]=28&sortedriders[]=29&sortedriders[]=30&sortedriders[]=31&sortedriders[]=32&sortedriders[]=33&sortedriders[]=34&sortedriders[]=35&sortedriders[]=36&sortedriders[]=37']}>


Using firebug, I can see the post data is:

data=sortedriders%5B%5D%3D22%26sortedriders%5B%5D%3D21%26sortedriders
%5B%5D%3D24%26sortedriders%5B%5D
%3D25%26sortedriders%5B%5D%3D23%26sortedriders%5B%5D
%3D26%26sortedriders%5B%5D%3D27%26sortedriders%5B
%5D%3D28%26sortedriders%5B%5D%3D29%26sortedriders%5B%5D
%3D30%26sortedriders%5B%5D%3D31%26sortedriders
%5B%5D%3D32%26sortedriders%5B%5D%3D33%26sortedriders%5B%5D
%3D34%26sortedriders%5B%5D%3D35%26sortedriders%5B%5D
%3D36%26sortedriders%5B%5D%3D37


If I run that through unquote manually, I get:

Out[95]:
'data=sortedriders[]=22&sortedriders[]=21&sortedriders[]=24&sortedriders[]=25&sortedriders[]=23&sortedriders[]=26&sortedriders[]=27&sortedriders[]=28&sortedriders[]=29&sortedriders[]=30&sortedriders[]=31&sortedriders[]=32&sortedriders[]=33&sortedriders[]=34&sortedriders[]=35&sortedriders[]=36&sortedriders[]=37'



It seems the same on both ends.

>Your use of getlist usage looks ok, so I'd guess
> something is happening on the javascript side.

Oh man, that's what I'm afraid of. I know even less about
javascript. :)

[Doug B]

> Oh man, that's what I'm afraid of. I know even less about
> javascript. :)

Javascript is something new for me too. It looks like things are
getting encoded twice. From a minute in google it looks like you are
using prototype?

Try:
postBody:Sortable.serialize('sortedriders')

instead of:
parameters: Sortable.serialize("sortedriders")

then on the django side:
request.POST.getlist('sortedriders')

This is where google led me, looks like it might have some good info.
Good luck!

http://www.willarson.com/blog/?p=39

[Arturo]

On Feb 16, 11:52 am, Doug B <dball...@gmail.com> wrote:
>
> Javascript is something new for me too.  It looks like things are
> getting encoded twice.  From a minute in google it looks like you are
> using prototype?

Yessir prototype/scriptaculous. :)

> Try:
> postBody:Sortable.serialize('sortedriders')
>
> instead of:
> parameters: Sortable.serialize("sortedriders")
>
> then on the django side:
> request.POST.getlist('sortedriders')
>
> This is where google led me, looks like it might have some good info.
> Good luck!
>
> http://www.willarson.com/blog/?p=39

YESSSS!!!!

DEBUG:root:<QueryDict: {u'sortedriders[]': [u'21', u'23', u'24',
u'22', u'25', u'26', u'27', u'28', u'29', u'30', u'31', u'32', u'33',
u'34', u'35', u'36', u'37']}>


Thank you very much!!

Funny enough, I came across that page while googlin' for an answer. I
should have read it a bit closer. D'oh!

I'll have to go back and figure out the differences later. I'm just
happy it's working after wasting *cough* 1.5 days *cough* on that.
lol

Thanks again!