I have a html form which will create an instance of a model plus its
m2m relations. So you have something like:
MainModelField1
MainModelField2
MainModelField3
...
m2mModelField1a, m2mModelField1b, m2mModelField1c
m2mModelField2a, m2mModelField2b, m2mModelField2c
...
hidden_count
<submit> <add another m2m Model>
In my view I have code like this:
count = <base number>
m2ms = []
for i in count:
m2ms.append(m2mModelForm(request.POST, prefix="m2m%d" % i)
main_model_form = MainModelForm(request.POST)
The issue comes when I try to validate the forms. Clearly some of the
m2m model forms may be empty and this is OK as long as at least some
(one) of them has data. However the is_valid() will fail since there
are indeed required fields that are not populated.
My question is how do I differentiate between an invalid form object,
i.e. one with incomplete data versus one with NO data? I tried
looking at m2ms[i].data but it has ALL of the fields from
request.POST so it is not {} as expected. What am I missing?
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