Changed the value from null=False to null=True. Asks for a default value. How to be?

Question

Django

Good day, gentlemen. You need to change null=False to null=True. When I do it

The field 'UserProfile.user_profile_b_day' does not have a default specified, yet is NOT NULL.

Tell me, please, how can I be? Thank you very much in advance.

Answer 1

Change Model

user_profile_b_day = models.DateTimeField(
    null=True, blank=True, default=None)

enter None when migrating