"'int' object has no attribute 'save'" Update models from views.py - django

Question

I want to update user model in a views.py. Is there a way to do that? What I want to do is minus user point in views.py and update into models without a form. but it gave me " 'int' object has no attribute 'save'"
views.py
def buy_item(request, item_name):
item = ShopItem.objects.get(item_name=item_name)
price = item.item_price
user = request.user
user_point = user.point
if user_point >= price:
user_point = user_point - price
point_left = user_point
point_left.save()
msg = messages.success(request, 'You bought item!')
return redirect('/shop', msg)
else:
msg = messages.success(request, 'You do not have enough point')
context = ({
'point': user_point,
'item': item,
'form': form
})
return render(request, 'item.html', context)
item models.py
class ShopItem(models.Model):
item_name = models.CharField(max_length=16)
item_image = models.ImageField(upload_to='media_items')
item_description = models.CharField(max_length=255)
item_command = models.CharField(max_length=255)
item_price = models.IntegerField(default=0)
def __str__(self):
return self.item_name
def snippet(self):
return self.item_description[:45]
user models.py
class UserProfile(AbstractUser):
username = models.CharField(max_length=16, unique=True)
email = models.EmailField(default='', unique=True)
phone = models.CharField(max_length=10)
point = models.IntegerField(default=0)
password1 = models.CharField(max_length=255)
password2 = models.CharField(max_length=255)
USERNAME_FIELD = 'username'
What I want is to save the point after changed.
What should I do? Please help! I'm really new to this. Sorry for my English.

Answer 1

Sadly, I don't have enough reputation to make a comment, but you need to use save() method in a model, not in an Integer.
So, you should replace
point_left = user_point
point_left.save()
for this
user.point = user_point # Assign the new point to the user
user.save() # Update your user model