new_form.py 文件源码

def _validate_python(self, value, state=None):
        if len(value) > self.max_length:
            raise ValidationError('toolong', self)

        name_slug = slugify(value)

        # Check for duplicates in the database
        try:
            CompanyAlchemy.get_company(name_slug)
        except NoResultFound:
            # There are no duplicates, the validation is therefore successful
            pass
        else:
            # This company slug name is already present in the database, notify
            # the user that the company he's trying to register already exists.
            raise ValidationError('already_exists', self)