Django abstract model?

Question

Django

For all system models, I created an abstract model that stores the date of the last change of the record

class CommonInfo(models.Model):
    last_modified_date = models.DateTimeField(auto_now=True)

    class Meta:
        abstract = True

The question is that I need to add a field to this abstract model in which I need to store the username last_modified_user and every time any entity is saved, the user was substituted in this field. Does anyone have any ideas how this can be done?

Answer 1

I have not tried to do this, but the general idea is this:
You can use middleware to write the current request to the thread variable (thread local). (For example https://github.com/nebstrebor/django-threadlocals)
Then it will be possible to get to the current user from the model.
In the abstract model, define a save method that will write the user attribute.

Answer 2

Alternatively, monitor the signals.

@receiver(post_save, sender=ModelName)
def funcname(sender, instance, **kwargs):
    #код обработки
    pass