Thanks for the idea Karen,
What's the right mechanism for passing the queryset back into the
form? I don't see an example in the docs.
Thanks!
-Josh
On Dec 4, 4:10 pm, "Karen Tracey" <[EMAIL PROTECTED]> wrote:
> On Thu, Dec 4, 2008 at 2:12 AM, cyberjack <[EMAIL PROTECTED]> wrote:
>
> > Hi,
>
> > I haven't been able to solve this problem, but have made some
> > progress:
>
> > It's definitely *not* bug 9039. I've download the tests from that
> > ticket and confirmed the fix was included in 1.0.2 final.
>
> > The problem is related to using querysets with formset_factory. Ie,
> > if I include a queryset filter, then I see this error. If I don't
> > include a queryset, and thus edit all status reports, I don't see the
> > error.
>
> > Lastly, I've simplified my code producing the problem:
>
> > my model:
>
> > class StatusReport(models.Model):
> > vehicle = models.IntegerField()
> > report_date = models.DateField()
> > status = models.CharField(max_length=10)
>
> > and my view:
>
> > def detail(request, vehicle_id):
> > limited_reports = StatusReport.objects.filter(vehicle=vehicle_id)
>
> > StatusFormSet = modelformset_factory(StatusReport, extra=0)
> > if request.method == 'POST':
> > formset = StatusFormSet(request.POST)
> > if formset.is_valid():
> > formset.save()
> > else:
> > # with error
> > #formset = StatusFormSet(queryset=limited_reports)
> > # without error
> > formset = StatusFormSet()
> > return render_to_response('manage_articles.html',
> > {'formset': formset,
> > 'vehicle_id': vehicle_id})
>
> > Is this a bug in Django? If so, what should I include in the bug
> > report?
>
> I think the bug is that you need to pass the queryset parameter when you are
> dealing with a POST (if you've specified it on the GET) so that the posted
> data can be matched up to the existing model instances. Otherwise I think
> it will be trying to validate and save as all new instances, and I think the
> error message is saying you wind up with duplicate primary key ids when you
> try that (though I will say that error message might could use some
> improvement).
>
> Karen
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