Django formsets required
How to make all forms in django formset required? I tried to validate presence of all fields in cleaned_da开发者_JS百科ta
overriding formset's clean() method but it just fails silently without any error displayed.
Thanks!
Source code:
class BaseScheduleForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
super(BaseScheduleForm, self).__init__(*args, **kwargs)
self.fields['day'].widget = forms.HiddenInput()
self.fields['user'].widget = forms.HiddenInput()
class Meta:
model = Schedule
def clean_end_time(self):
start_time = self.cleaned_data.get('start_time')
end_time = self.cleaned_data['end_time']
if start_time and end_time:
if end_time <= start_time:
raise forms.ValidationError("End time must be later that start time.")
return end_time
class BaseScheduleFormset(forms.models.BaseModelFormSet):
def __init__(self, *args, **kwargs):
super(BaseScheduleFormset, self).__init__(*args, **kwargs)
for number, weekday in enumerate(WEEKDAYS):
self.forms[number].day_name = weekday[1]
def clean(self):
raise forms.ValidationError('You must specify schedule for the whole week')
ScheduleFormset = forms.models.modelformset_factory(Schedule, extra=7, max_num=7,
form=BaseScheduleForm, formset=BaseScheduleFormset)
There are 7 forms each for one day and all of them must be filled to be valid. In example above I just tried to raise error in clean. is_valid()
became False, but no errors were displayed.
It's a bit hard to understand where the errors are not being displayed.
If is_valid is False, then good, the validation it self is working. Then the next place to look is for the templating layer. How are you checking for errors? {{form.errors}} or {{somefield.errors}}.
The way the clean methods are setup here, their errors will not be associated with any fields, but should go in the all erros slot.
Cheers
I had this same problem and figured out where these errors were stored by checking the source. When you override the clean method of a formset and raise a validation error the errors are stored in the non_form_errors property.
So in your template you would need to add the following assuming the template variable for formset is named 'formset':
{{ formset.non_form_errors }}
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