Yes
but I've just try to delete de .db file (I user sqlite3)
I syncdb and It works now :)
Thanks Alex for your good advice :)
On 9 mai, 11:00, Alex Gaynor <alex.gay...@gmail.com> wrote:
> On Sat, May 9, 2009 at 10:58 AM, Bro <coolpari...@gmail.com> wrote:
>
> > Here is the code :
>
> > class Category(models.Model):
> > parent = models.ForeignKey('self', blank=True, null=True)
> > name = models.CharField(max_length=63)
> > def __unicode__(self):
> > return self.name
>
> > I don't understand why but when I create a category in the admin page,
> > there is this error :
>
> > Exception Type: IntegrityError
> > Exception Value: commercial_category.parent_id may not be NULL
>
> > I try to make the parent ForeignKey optional but it doesn't work
>
> > Thanks for you help
>
> Did you syncdb before settings the fkey to null?
>
> Alex
>
> --
> "I disapprove of what you say, but I will defend to the death your right to
> say it." --Voltaire
> "The people's good is the highest law."--Cicero
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