14.1. Auth User

>>> 
... from django.db import models
... from django.utils.translation import gettext_lazy as _
... from django.contrib.auth.models import AbstractUser
...
...
... class Role(models.TextChoices):
...     PRODUCT_OWNER = 'product-owner', _('Product Owner')
...     SCRUM_MASTER = 'scrum-master', _('Scrum Master')
...     TEAM_MEMBER = 'team-members', _('Team Member')
...
...
... class MyUser(AbstractUser):
...     role = models.CharField(verbose_name=_('Role'), max_length=30, choices=Role)
...
...     def is_product_owner(self):
...         return self.groups.filter(name=Role.PRODUCT_OWNER).exists()
...
...     def is_scrum_master(self):
...         return self.groups.filter(name=Role.SCRUM_MASTER).exists()
...
...     def is_team_member(self):
...         return self.groups.filter(name=Role.TEAM_MEMBER).exists()
...
...    def __str__(self):
...        return f'{self.get_full_name()}'