Hi all,
after digging a bit deeper, it seems that
ModelAdmin.save_formset()
<https://docs.djangoproject.com/en/1.4/ref/contrib/admin/#django.contrib.admin.ModelAdmin.save_formset>
is the right solution for my original problem
(https://groups.google.com/d/topic/django-users/ZwgW7-t6CBA/discussion).
From there I followed to
"Saving objects in the formset"
<https://docs.djangoproject.com/en/dev/topics/forms/modelforms/#saving-objects-in-the-formset>
Now my question is, in the example for ModelAdmin.save_formset(), after
the call to
instances = formset.save(commit=False)
of what type is `instances`? A list? A QuerySet?
Is it safe to sort the instances? E.g. like this:
instances = formset.save(commit=False)
for vv in instances.sort(key=lambda obj: obj.begin, reverse=True):
# ...
vv.save()
formset.save_m2m()
(Being able to sort the instances in reverse order by "begin" date is
required to solve my original problem...)
Finally, does `instances` contain only the instances that were
changed/edited by the user, or all instances (that are related to the
parent model)? (The latter is what I need...)
I tried this out as outlined above, and it seems that only changed
instances are in `instances` (when no instances were changed, I get
"TypeError: 'NoneType' object is not iterable", and find that `instances
== []`...)
Any help would very much be appreciated!
Best regards,
Carsten
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