clean_method.py

forms.py

def clean(self, value):
#         super(UserField, self).clean(value)
#         instance = getattr(self, 'instance', None)

#         if instance is None:
#             try:
#                 User.objects.get(email=value)
#                 raise forms.ValidationError(
#                 "Someone is already using this email. Please pick an other.")
#             except User.DoesNotExist:
#                 return value