#35949: Add formset_kwargs keyword argument to BaseFormSet
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Reporter: richardbrockie | Type: New
| feature
Status: new | Component: Forms
Version: 5.1 | Severity: Normal
Keywords: formset validation | Triage Stage:
| Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Hi,
I find it useful when validating formsets to sometimes define and set an
attribute that can be used during validation.
{{{
class MyFormSet(BaseFormSet):
useful_attribute = None
def clean(self):
super().clean()
# validation code using self.useful_attribute...
# usage in a view...
the_formset = formset_factory(MyForm, formset=MyFormSet, extra=0)
bound_formset = the_formset(initial=initial_results,
form_kwargs=form_kwargs)
bound_formset.useful_attribute = useful_value
}}}
I'm wondering if formset_kwargs could be added to BaseFormSet to follow
the form_kwargs pattern. The suggested usage would be something like this:
{{{
class MyFormSet(BaseFormSet):
def __init__(self, useful_attribute, *args, **kwargs):
self.useful_attribute = useful_attribute
super().__init__(*args, **kwargs)
def clean(self):
super().clean()
# validation code using self.useful_attribute...
# usage in a view...
the_formset = formset_factory(MyForm, formset=MyFormSet, extra=0)
bound_formset = the_formset(initial=initial_results,
form_kwargs=form_kwargs,
formset_kwargs={"useful_attribute": useful_value})
}}}
The kwargs provided in formset_kwargs would then be passed to MyFormSet
when it is instantiated.
--
Ticket URL: <https://code.djangoproject.com/ticket/35949>
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