Re: IntegrityError at /register/ auth_user.username may not be NULL

On Mar 28, 9:38 pm, Daniel Roseman <dan...@roseman.org.uk> wrote:
> On Wednesday, 28 March 2012 20:31:09 UTC+1, laurence Turpin wrote:
>
> > I'm getting the following error with my registration  section of my
> > program.
>
> > IntegrityError at /register/
> > auth_user.username may not be NULL
>
> > I am using django 1.3.1 and python 2.7.2 and I'm using sqlite3 as the
> > database.
> > I am a newbie and I'm learning Djanogo from the book "Learning website
> > development with Django"
>
> > The registration form is displayed ok  and I'm able to fill it out and
> > it is when I click register that the problem occurs.
>
> > /////////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////////// /////////////////////////
>
> > My views.py  looks like the following and register_page is the
> > relevant function here:
>
> > <snip>
>
> >     def clean_username(self):
> >         username = self.cleaned_data['username']
> >         if not re.search(r'^\w+$', username):
> >             raise forms.ValidationError('Username can only contain
> > alphanumeric characters and underscores')
> >             try:
> >                 User.objects.get(username=username)
> >             except ObjectDoesNotExist:
> >                 return username
> >             raise forms.ValidationError('Username already taken. ')
>
> Looks like you have an indentation problem in clean_username - the lines
> under the first "raise forms.ValidationError" should be one level to the
> left, otherwise they will never be reached and the method will never return
> the cleaned value for username.
> --
> DR.

Thank you Danial you are absolutely right. I tried what you said and
it works fine now.

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