review-automation-server/analytics/background_job.py

from django.utils import timezone
from review.models import Review
from django.db.models import Count


def weekly_report(location_id):
    date = timezone.now() - timezone.timedelta(days=7)
    reviews = Review.objects.filter(location_id=location_id, create_time__gte=date)
    res = Review.objects.filter(create_time__gte=date, location_id=location_id).values('star_rating')\
        .annotate(total=Count('star_rating')).order_by('star_rating')
    # TODO:
    # make a table with reviews count and bad reviews and send mail to a particular email add.