Victor Hooi wrote:
> I tried that, and the fields aren't there, but when I try to save the
> object, I get a:
>
> IntegrityError at /admin/people/address/add/
> people_address.content_type_id may not be NULL
>
> so obvoiusly Django doesn't like it if those fields aren't filled.
it's a bug http://code.djangoproject.com/ticket/12577
> How do people normally do this sort of thing, with a polymorphic
> object that's referenced by multiple other objects?
use this hack until it's fixed
if 'django.contrib.contenttypes' in settings.INSTALLED_APPS:
# patch django.contrib.contenttypes.generic.BaseGenericInlineFormSet
# to provide the instance.pk
# see http://code.djangoproject.com/ticket/12577
from django.contrib.contenttypes import generic
def save_new(self, form, commit=True):
# Avoid a circular import.
from django.contrib.contenttypes.models import ContentType
kwargs = {
self.ct_field.get_attname():
ContentType.objects.get_for_model(self.instance).pk,
self.ct_fk_field.get_attname(): self.instance.pk,
}
new_obj = self.model(**kwargs)
return generic.save_instance(form, new_obj, commit=commit)
setattr(generic.BaseGenericInlineFormSet, 'save_new', save_new)
--
()_() | That said, I didn't actually _test_ my patch. | +----
(o.o) | That's what users are for! | +---+
'm m' | (Linus Torvalds) | O |
(___) | raffaele dot salmaso at gmail dot com |
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