Field for `author` created with `required=False`. And `clean` method
doesn't call `clean_author` if `author` data isn't present.
On Jul 6, 10:14 pm, "Rob Hudson" <[EMAIL PROTECTED]> wrote:
> Is it possible to supply a clean_[fieldname] method to a ModelForm for
> custom validation rules like you can with a normal Form? I've got a
> form with an author column that maps to Django's User class. I want a
> default to be set if none is given. I've tried many ways to
> accomplish this and haven't found one...
>
> I don't want to tie it to the model directly as going through
> different logical paths means slightly different defaults.
>
> I tried adding a `clean_author` method but that didn't seem to work
> either. Simple example (not the actual code):
>
> class ClipForm(ModelForm):
> class Meta:
> model = Clip
> def clean_author(self):
> if not self.cleaned_data.get('author', None):
> return User.objects.get(pk=1)
>
> In my view, I have:
>
> if request.method == 'POST':
> form = ClipForm(data=request.POST)
> if form.is_valid():
> new_clip = form.save()
> # ...
> else:
> # ...
>
> My understanding is that the is_valid() method kicks off the
> Field.clean(), Field.clean_*(), and Form.clean() methods which should
> call my clean_author method and assign an author if one isn't given.
> But what happens is that is_valid() returns false with the error that
> the author field is required.
>
> Any guidance is appreciated.
>
> Thanks,
> Rob
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