def validate_username(self, username):
if re.search(NON_ALPHANUMERIC_RE, username):
raise ValidationError(
'Username should only contain letters, numbers and/or the underscore character.'
)
existing = User.get_by(username=username)
if existing and (self.is_create() or existing != self.instance):
raise ValidationError('Sorry, that username is already taken.')
def validate_password(self, value):
if not value or len(value) < 8:
raise ValidationError(
'Password must be at least 8 characters long.')
def validate_email(self, email):
existing = User.get_by(email=email)
if existing and (self.is_create() or existing != self.instance):
raise ValidationError('Sorry, that email is already taken.')
def validate_email(self, email):
existing = NewsletterSubscribe.get_by(email=email)
if existing and (self.is_create() or existing != self.instance):
raise ValidationError(
'Sorry, you are already subscribed with that email.')