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?
Thanks,
-Josh
On Dec 2, 3:49 pm, cyberjack <[EMAIL PROTECTED]> wrote:
> Hi all, I've been stumped by this error for the past few days and
> haven't made any progress. Could someone please help out?
>
> I've created a formset of seven entries, one for each day of the
> previous week. The first submission works fine; all seven entries are
> successfully submitted. Subsequent submissions, however, generate the
> following error for each of the seven entries:
>
> (Hidden field id) Status report with this None already exists.
>
> I found an django issue from a few months ago which might be related
> [1]. However, this bug was resolved back in Oct. and I'm running
> 1.0.2, so I assume the CL is included. Is there any way to be
> certain?
>
> Here are my models, simplified for space:
> class Vehicle(models.Model):
> number = models.IntegerField(unique=True)
>
> class StatusReport(models.Model):
> date = models.DateField()
> vehicle = models.ForeignKey(Vehicle, to_field='number')
> status = models.CharField
> ('status',max_length=8,choices=STATUS_REPORT_CHOICES)
>
> class Meta:
> unique_together = ("date", "vehicle")
>
> And here's my view:
>
> def GenerateReportDate(request, vehicle_id, date):
> # removed verification code for clarity
> # week_start = monday before date.
> # week_end = week_start + datetime.timedelta(7)
> for i in range(7):
> check_date = week_start + datetime.timedelta(i)
> obj, created = StatusReport.objects.get_or_create(vehicle = int
> (vehicle_id),
> date = check_date,
> defaults={'date':
> check_date,
>
> 'vehicle':vehicle[0]})
> # Pull 7 reports for this week
> reports = StatusReport.objects.filter(
> vehicle__exact=vehicle_id
> ).filter(
> date__gte = week_start
> ).filter(
> date__lte = week_end
> ).order_by("date")
>
> ReportFormSet = modelformset_factory(StatusReport, extra=0)
>
> if request.method == 'POST':
> formset = ReportFormSet(request.POST, request.FILES)
> if formset.is_valid():
> formset.save()
> return HttpResponseRedirect('../done/') # Redirect after POST
> else:
> formset = ReportFormSet(queryset=reports)
> return render_to_response('ops/report.html', {'formset': formset,
> 'number': vehicle_id,
> 'weekof': week_start})
>
> Thanks for any help,
>
> -Josh
>
> [1]http://code.djangoproject.com/ticket/9039
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