Django save on model-CodePudding

I just want that it will automatic compute when it save on the database

class Order(models.Model):
    quantity = models.IntegerField(null=True, blank=True)
    price = models.IntegerField(null=True, blank=True)
    total_price = models.IntegerField(null=True, blank=True)

    def save(self, *args, **kwargs):
        self.total_price = self.price * self.quantity
        return (Order, self).save(*args, **kwargs)

the error i received is

'tuple' object has no attribute 'save'

CodePudding user response：

return (Order, self).save(*args, **kwargs) To call parent overriden method we use super function You're just calling method of a tuple which doesn't exist(the method) It should be return super(Order, self).save(*args, **kwargs)