uuid = models.UUIDField(unique=True, default=uuid.uuid4, editable=False)
user = models.ForeignKey('auth.User', models.CASCADE)
book = models.ForeignKey('catalogue.Book', models.CASCADE)
uuid = models.UUIDField(unique=True, default=uuid.uuid4, editable=False)
user = models.ForeignKey('auth.User', models.CASCADE)
book = models.ForeignKey('catalogue.Book', models.CASCADE)