Django adding an attribute to a model formset - django

Question

How do I go about adding a new class attribute for each for my fields in my formset? I was thinking it would be along these lines of code but the attribute fields does not exist in a formset object.
55 # create the formset
56 ItemUserDetailsFormset = modelformset_factory(CartItemUserDetails,
57 exclude=['cart', 'cart_item'], formset=BaseItemUserDetailsFormset)
37 class BaseItemUserDetailsFormset(BaseModelFormSet):
38 def __init__(self, *args, **kwargs):
39 super(BaseItemUserDetailsFormset, self).__init__(*args, **kwargs)
40 self.fields['first_name'].widgets = forms.TextInput(attrs={"class":"required"})

Answer 1

You're trying to set the fields attribute on the formset. You need to set it on the form class, not the formset class.
So, you want something like...
class ItemUserDetailsForm(forms.ModelForm):
class Meta:
model = CartItemUserDetails
def __init__(self, *args, **kwargs):
super(ItemUserDetailsForm, self).__init__(*args, **kwargs)
self.fields['first_name'].widget = forms.TextInput(attrs={ 'class': 'required' })
# [...]
ItemUserDetailsFormset = modelformset_factory(CartItemUserDetails,
form=ItemUserDetailsForm,
exclude=['cart', 'cart_item'],
)
Sadly, I scanned the docs and didn't see documentation of the form keyword argument in the Django docs, but it's clearly presented if you look at the modelform_factory function itself (see line 371).
Also, if the only thing that you're changing is the widget property, and if you're using Django >= 1.2 (which you should be), there's a slightly simpler syntax on the form itself:
class ItemUserDetailsForm(forms.ModelForm):
class Meta:
model = CartItemUserDetails
widgets = {
'first_name': forms.TextInput(attrs={ 'class': 'required' }),
# [...]
}