from django.db.models import Avg, Count


def refresh_store_rating(store):
    aggregate = store.reviews.aggregate(avg=Avg('rating'), count=Count('uuid'))
    store.rating_avg = aggregate['avg'] or 0
    store.rating_count = aggregate['count'] or 0
    store.save(update_fields=['rating_avg', 'rating_count', 'updated_at'])