Question

Trying to save a bunch of objects but with a custom form:

class CustomForm(forms.ModelForm):
    class Meta:
        model = Widget
    complexify = models.BooleanField()

When complexify is checked, i need to do some complex operations on the widget object.

I can’t do:

for object in formset.save(commit=False):
    ...

because it won’t have the complexify flag.

And going through each form seems to be the wrong way:

for form in formset.forms:
    ...

because it includes the extra (empty) forms and the deleted forms.

Any ideas on how to get this done?

Answer 1

The best answer i could find to this problem was overriding the save on the form:

class CustomForm(forms.ModelForm):
    class Meta:
        model = Widget
    complexify = models.BooleanField()

    def save(self, *args, **kwargs):
        obj = super(CustomForm, self).save(*args, **kwargs)
        obj.complexify = self.cleaned_data.get("complexify")
        return obj

then it will be available for you when you handle them:

for object in formset.save(commit=False):
    if object.complexify: 
        object.do_complicated()