Django validates form data in this order when calling is_valid or full_clean:
1. run the clean method of the form field itself. Here: DateTimeField.clean() 2. then run the clean_<fieldname>() method of the form if available 3. once those two methods are run for every field, run the clean() method of the form Source: http://docs.djangoproject.com/en/1.1/ref/forms/validation/#form-and-field-validation So I guess the cleaned_data dict has no 'some_hidden_field' key. DateTimeField.clean() probably raised a Validation Error and did not populate the cleaned_data dictionary. Try the following: def clean(self): cleaned_data = self.cleaned_data #cleaned_data.get(key) returns None if key does not exist some_hidden_field = cleaned_data.get("some_hidden_field") if some_hidden_field: #do your custom validation here and raise ValidationError if necessary # Always return the full collection of cleaned data. return cleaned_data On Mar 22, 3:31 pm, gentlestone <tibor.b...@hotmail.com> wrote: > this piece of code leads to Key error 'some_hidden_field' > > class XyForm(Form): > > some_hidden_field = > forms.DateTimeField(widget=forms.HiddenInput()) > > def clean(self): > some_hidden_field = self.cleaned_data['some_hidden_field'] > > Why are hidden fields not cleaned? > I need to validate the hidden value and raise VadiationError if the > value is not ok. -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-us...@googlegroups.com. To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.
