On 11/2/07, crybaby <[EMAIL PROTECTED]> wrote:
>
>
> I have a form and trying to do validation. When I submit a form
> without any values into the field, "reason", I get this error.
>
> Exception Type: KeyError
> Exception Value: 'reason'
>
> at this line of ReasonForm:
>
> if(self.cleaned_data['reason']==''):
>
> here is my ReasonForm:
> class ReasonForm(forms.Form):
>
> reason = forms.CharField(max_length=250)
>
> def clean(self):
> if(self.cleaned_data['reason']==''):
> raise forms.ValidationError('Invalid Reason, please enter
> it.')
> return self.cleaned_data
>
The default field validation for a CharField will raise a validation error
if the field is required (which yours is, since you have not overridden the
default required=True) but empty. When that happens, the field is removed
from cleaned_data. So, by the time your form's clean() is run (after the
fields have been individually cleaned), 'reason' has already been flagged as
an error and is no longer in cleaned_data. In short -- you don't need to be
checking for this, as it's already being done by default.
Karen
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