InlineFormSet validation

Hi. I already asked this question in StackOverflow, but I didn't get any useful answer. Let's try here :-)

I have a BaseInlineFormSet, and I'd like to validate a field in the parent form based on the values on the fields of the children. As seen in the docs, the only method to make a custom validation is clean(), but I can't find a way to add errors to the parent form, only for the children.

In the following code I build a formula. Each variable comes from a inner form, and if the global formula don't validate, I'd like to add an error to the parent's form field formula

class CustomInlineFormSet(BaseInlineFormSet):

    def clean(self):

        formula = self.instance.formula

        variables = []

        for form in self.forms:

            if 'formula_variable' in form.cleaned_data:

                variables.append(form.cleaned_data['formula_variable'])

        valid, msg = validate_formula(formula, variables)

        if not valid:

            WHAT HERE???

Thank you!!

--
You received this message because you are subscribed to the Google Groups "Django users" group.
To unsubscribe from this group and stop receiving emails from it, send an email to django-users+unsubscribe@googlegroups.com.
To post to this group, send email to django-users@googlegroups.com.
Visit this group at http://groups.google.com/group/django-users.
To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/87ce32a8-782e-4248-8b8c-046b6eef0904%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.