My question is about how to validate one field based on the value of
another field in a modelform,
but I don't want to show the second field in the form.
I've got a Ticket model with a foreign key field to Event:
class Ticket(models.Model): # General Admission or assigned seating
section
event = models.ForeignKey(Event)
sales_end = models.DateField()
...# lots more
class TicketForm(ModelForm):
patron_type = forms.ModelChoiceField(empty_label=None, queryset =
None)
event = forms.ModelChoiceField(widget=forms.HiddenInput(),
queryset = Event.objects.all())
#event = forms.IntegerField(widget=forms.HiddenInput())
class Meta:
model = Ticket
exclude = []
def __init__(self, *args, **kwargs):
super(TicketForm, self).__init__(*args, **kwargs)
#self.fields['event'].id = event_id
self.fields['patron_type'].queryset = PatronType.objects.all()
def clean(self):
sales_end = self.cleaned_data.get("sales_end")
#event = self.cleaned_data.get("event")
# want to validate sales_end date against event.date,
#if sales_end > event.date:
# raise forms.ValidationError("Sales end date must be on or
before the day of the event")
return cleaned_data
In my view I know the event before the form is created:
formTicket = TicketForm(initial={'event': event})
My question, how do I make the event not appear in the form at all,
but be available in the clean function so that I can validate the
sales_end field properly and report the validation error?
Thanks
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