Hi there,
When calling def clean_name(self):, you can see if your instance has
an id or not:
def clean_name(self):
if not self.id:
#this would be a new record
else:
#this would be an existing record
HTH,
Brandon
On Mar 31, 9:24 am, Emanuel <costavitor...@gmail.com> wrote:
> Hi all!
>
> I have a modelform and I want to customize validation.
>
> I'm overriding the method clean_<field>().
>
> When I'm saving the form I want to see if a specific user has been already
> assigned to a project. The only way he can ben assigned again is if he's an
> inactive user, so:
>
> models.py
> Class User(models.Model):
> name = models.CharField(...)
> active = models.BooleanField()
> ...
>
> Class Project(models.Model):
> user = models.ForeignKey(User)
> ....
> ******************
>
> forms.py
> Class ProjectForm(ModelForm)
> ....
> def clean_name(self):
> user = self.cleaned_data['user']
> if User.objecs.filter(user.id, active=True):
> raise forms.ValidationError(_("This man has been
> already assign
> to a partner"))
> return user
>
> When I'm creating a new project it works fine (I believe, haven't been tested
> yet), but when editing it throws an error because the user already exists, and
> that's obvious. So, I want to be able to verify if it is a new instance or if
> it is an instance being edited.
>
> Thanks,
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