from django.db import models from customers.models import Customer class Group(models.Model): name = models.CharField(max_length=50) customer = models.ForeignKey(Customer, on_delete=models.CASCADE) class Meta: abstract = True def __str__(self): return self.name class AdGroup(Group): class Meta: verbose_name_plural = "AD Groups" class MailGroup(Group): mail_address = models.EmailField() class Meta: verbose_name_plural = "Mail Groups"