Hi All,
I am unable to understand the below logic for '*BaseInlineFormSet*' and '
*inlineformset_factory*'.
1. What is the use of 'formset' in 'inlineformset_factory'?
2. What is the use of validation inside 'BaseInlineFormSet'? How it works?
I haven't seen any implementation like this validation in normal forms.
As I have only worked with general forms, I was exploring on 'formset',
but, couldn't understand this piece of example. I know 'formset' is used to
create multiple forms on the same page.
AnswerFormSet = *inlineformset_factory*( #this will be an instance of the
form
Question, # parent model
Answer, # base model or child model
formset=*BaseAnswerInlineFormSet*,
fields=('text', 'is_correct'),
min_num=2,
validate_min=True,
max_num=10,
validate_max=True
)
class *BaseAnswerInlineFormSet*(forms.BaseInlineFormSet):
def clean(self):
super().clean()
has_one_correct_answer = False
for form in self.forms:
if not form.cleaned_data.get('DELETE', False):
if form.cleaned_data.get('is_correct', False):
has_one_correct_answer = True
break
if not has_one_correct_answer:
raise ValidationError('Mark at least one answer as correct.',
code='no_correct_answer')
Thank you in advance.
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