On Oct 26, 5:19 am, robinne <develo...@computer-shoppe.net> wrote:
> I am noticing that when I load an existing ModelForm into a template,
> and I save (POST), I can't seem to get the primary key back in order
> to update that specific record. I am starting to head down the path of
> formsets...but that is not what I need. I am updating one record only.
> Any help is appreciated!
>
> VIEW
> def UpdateMember(request):
> if request.method == "POST":
> # I don't seem to have access to primary key...
> # I do have the posted data, and can save to database here.
>
> TEMPLATE (as you can see, I've tried to explicitly include primary
> key, both inside and outside the for loop)
> {{ Member.MemberID }}
> {% for field in Member %}
> {{ field.label_tag }}
> {{ field }}
> {% endfor %}
> <input type="button" onclick="document.forms[0].submit()" value="save">
You haven't posted the code that shows how you instantiate the form.
Clearly your UpdateMember view must be taking more than just the
request parameter - it must include a parameter that gets the object
you want to update in the first place. And when you instantiate the
form for editing, you must be passing the 'instance' parameter, so you
get the data for the form to update. So all you need to do on POST is
to use that parameter again.
def update_member(request, pk):
member = get_object_or_404(member, pk=pk)
if request.POST:
form = MyForm(instance=member, data=request.POST)
if form.is_valid():
form.save()
return HttpResponseRedirect('/wherever/')
else:
form = MyForm(instance=member)
return render_to_response('mytemplate.html', {'form':form})
--
DR.
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