if we examine the following code:

class SomeModel(models.Model):
    ...
    def save(self, *args, **kwargs):
        self.validate_unique()
        super().save()

    def validate_unique(self, *args, **kwargs):
        super().validate_unique(*args, **kwargs)
        
        # Doing an ORM query on the model with *filter* on the model attributes & an associated model, 
        # and if exist - dont create a new instance, if not - create a new instance.
        is_duplicated = SomeModel.objects.filter(name=given_name_from_user, attribute_from_associated_model=some_attr)
        if is_duplicated:
             raise Exception("go wrong")
        # Else - continue to save

Now, it will work with the development server, but not with a production one like gunicorn or uvicorn, because the save method gurantee us atomicity, but not isolation, right?

for us to gurantee isolation, we should use ‘get_or_create’ on the view level?

I’m mistake somewhere?
Any comment will help, Thanks!