class Reservation(models.Model):

    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)

    userReservation = models.ForeignKey(User, on_delete=models.CASCADE, default=1)

    dateStart = models.DateTimeField(null=False, blank=False, default=datetime.now)  

​

    def __str__(self):

        return str(self.id)

​

​

class DetailsReservation(models.Model):

    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)

    Reservation = models.ForeignKey(Reservation, blank=False, on_delete=models.CASCADE, null=True, related_name='reservation_details')

    product = models.ForeignKey(Product, blank=False, on_delete=models.CASCADE, null=True, related_name='products_reservation')

    Quantity = models.IntegerField(null=False, blank=False, default=0)

​

    def __str__(self):

        return self.product.product_Description +" by: " + self.userbyReserva.email

​

    def save(self, *args, **kwargs):

        self.userbyReserva = self.Reservation.userReservation

        super(DetailsReservation, self).save(args, kwargs)