import uuid
from django.db import models


class UUIDTimeStampedModel(models.Model):
    """
    An abstract base class model that provides self-updating
    ``created_at`` and ``updated_at`` fields, along with a UUID primary key.
    """

    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    class Meta:
        abstract = True