/Python/Django order by foreign key count

Django order by foreign key count

# order_by count of foreign key relation
from django.db.models import Count
top_users = User.objects.filter(problem_user=False) \
                .annotate(num_submissions=Count('submission')) \ # adds column "num_submissions" in "top_users"
                .order_by('-num_submissions')

Source: stackoverflow.com

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