Django and Custom Form validation

Question

I am trying to create a custom form field and validate off it. This is version 1.0 of Django.

Here is my form object

class UsernameField(forms.CharField)         


        

Answer 1

That didn't work in 1.0... here is how I solved it

class UsernameField(forms.CharField):
    def clean(self, request, initial=None):
        field = super(UsernameField, self).clean(request)

        from django.contrib.auth.models import User
        user = User(username=request)
        if user is not None:
            raise forms.ValidationError("That username is already taken")