Django: How to access original (unmodified) instance in post_save signal

Question

I want to do a data denormalization for better performance, and put a sum of votes my blog post receives inside Post model:

class Post(models.Model):
    \"\         


        

Answer 1

You can use the FieldTracker from django-model-utils: https://django-model-utils.readthedocs.io/en/latest/utilities.html#field-tracker