How to override save() method in Django model?

Question

Django

class ValueRatingPost(models.Model):
  """ Модель оценки постов """
  user = models.OneToOneField(User, on_delete=models.CASCADE, verbose_name='Пользователь')
  rating = models.ForeignKey(Rating, on_delete=models.CASCADE, verbose_name='Оценка')
  post = models.ForeignKey(Post, on_delete=models.CASCADE, verbose_name='Запись')

class Meta:
...

def save(self, *args, **kwargs):
...
if User in self.user:
...

How to override save() with update so that the user can rearrange the rating?

I know that in the view you can do update_or_create, but I want to override save

Answer 1

overriding a method is easy:

def save(self, *args, **kwargs):
    # some logic
   super().save(*args, **kwargs)

But you have a problem in the logic - now the user can put only one rating, the rearrangement of the rating has nothing to do with the redefinition of save