Django - How to increment integer field from user input?

Question

I\'m new to Django, but I\'m building a website where people can make statements regarding certain debatable topics. Right now I\'ve just manually added a few statements for

Answer 1

kyiphyu's code can be further simplified using F expressions:

from django.db.models import F

Statement.objects.filter(id__in=statements).update(vote=F('vote') + 1)