def edit(request, placetype_slug):
"""
Edit all Places linked to a PlaceType
"""
# get_or_create a PlaceType (no permission required)
place_type, created = PlaceType.objects.get_or_create(slug=placetype_slug,
defaults={'label':placetype_slug})
# build the formset in a standard django way
# extra=0, we deal with additionnal forms via empty_form
PlaceFormSet = inlineformset_factory(PlaceType, Place,
form=PlaceForm, extra=0)
if request.method == "POST":
form = PlaceTypeForm(request.POST, instance=place_type)
formset = PlaceFormSet(request.POST, instance=place_type)
# due to project scope (form is always valid),
# we process simultaneously form and formset validations
if form.is_valid() and formset.is_valid():
form.save()
formset.save()
else:
# return below to show invalid forms if needed
return render_to_response('places/edit.html',
{'form': form, 'formset':formset},
context_instance=RequestContext(request))
# if request.method is get or post succeed, we fill form and formset with
# latest values.
form = PlaceTypeForm(instance=place_type)
formset = PlaceFormSet(instance=place_type)
# return below for request.method =! "POST"
return render_to_response('places/edit.html',
{'form': form, 'formset':formset,
},
context_instance=RequestContext(request))
