@render_to('edit_operation.html')
def edit_operation(request, pk):
from forms import OpBaseForm, OperationForm
from django.forms.models import inlineformset_factory
op = Operation.objects.get(pk=pk)
OpBaseFormSet = inlineformset_factory(Operation, OpBase, form=OpBaseForm, extra=5, )
if request.method == "POST":
form = OperationForm(request.POST, instance=op)
formset = OpBaseFormSet(request.POST, instance=op)
if formset.is_valid() and form.is_valid():
form.save()
formset.save() #error here
return HttpResponseRedirect( op.get_absolute_url() )
else:
form = OperationForm(instance=op)
formset = OpBaseFormSet(instance=op)
return {'operation': op, 'opform': form, 'formset': formset}
This seems pretty straightforward, but whenever I try to submit data (even unchanged data), I get this error:
Environment: Request Method: POST Request URL: http://localhost:8000/edit/operation/1/ Django Version: 1.0.2 final Python Version: 2.6.2 Installed Applications: ['main', 'django_extensions', 'django.contrib.comments', 'django.contrib.admindocs', 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.sites', 'django.contrib.gis', 'django.contrib.humanize', 'registration'] Installed Middleware: ('django.middleware.common.CommonMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware') Traceback: File "/usr/lib/python2.6/dist-packages/django/core/handlers/base.py" in get_response 86. response = callback(request, *callback_args, **callback_kwargs) File "/usr/lib/python2.6/dist-packages/annoying/decorators.py" in wrapper 55. output = function(request, *args, **kwargs) File "/home/chris/Websites/jobmap/main/views.py" in edit_operation 68. formset.save() File "/usr/lib/python2.6/dist-packages/django/forms/models.py" in save 389. return self.save_existing_objects(commit) + self.save_new_objects(commit) File "/usr/lib/python2.6/dist-packages/django/forms/models.py" in save_existing_objects 403. obj = existing_objects[form.cleaned_data[self._pk_field.name]] Exception Type: KeyError at /edit/operation/1/ Exception Value: None
Anyone have any idea what is causing this error? If theres an error in the formset, then what is formset.is_valid()
doing being 'True'? Anyone at least have any ideas on how to debug this in order to find whats going wrong? Both forms work perfectly fine when used individually, and I have {{formset.management_form}}
in my template.