Misago/misago/users/models/activityranking.py

from django.conf import settings
from django.db import models


class ActivityRanking(models.Model):
    user = models.ForeignKey(
        settings.AUTH_USER_MODEL,
        related_name='+',
        on_delete=models.CASCADE,
    )
    score = models.PositiveIntegerField(default=0, db_index=True)