Prevent modification of model through model/manager/queryset methods

Hello everybody,

I have a model which needs complex logic for update, creation and deletion.
I would like to have only one custom manager method to handle creation (let's call it `new`), one model method to handle deletion and prevent all the others.

My question is : Is there other methods that can modify models besides the ones below? Is there any way to know if I'm not missing a method that can modify models (other than reading the whole documentation)?

Here is what I have now :

class MyModelQuerySet(models.QuerySet):
def update(self, *args, **kwargs):
raise ValueError("Use 'new' method from manager instead.")

def delete(self):
raise ValueError("Use 'delete' method from model instead.")

class MyModelManager(models.Manager):
def get_queryset(self):
return MyModelQuerySet(self.model, using=self._db)

def create(self, *args, **kwargs):
raise ValueError("Use 'new' method from manager instead.")

def get_or_create(self, *args, **kwargs):
raise ValueError("Use 'new' method from manager instead.")

def update_or_create(self, *args, **kwargs):
raise ValueError("Use 'new' method from manager instead.")

def new(self, *args, **kwargs):
obj = self.model()
# Insert complex logic here
super(MyModel, obj).save()

class MyModel(models.Model):
def save(self, *args, **kwargs):
raise ValueError("Use 'new' method from manager instead.")

def delete(self, *args, **kwargs):
# Insert another complex logic here
super().delete(*args, **kwargs)

Thanks in advance for any bit of advice!

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