Oct 19, 2016
Count связанных объектов B в каждом объекте A
Count и id
A.objects.annotate(num=Count('b__id')).values_list('num', 'id')
seen from United States
seen from Singapore
seen from United States
seen from Malaysia
seen from Malaysia
seen from United States
seen from United States
seen from United States
seen from Singapore
seen from United States
seen from Canada
seen from Canada
seen from Singapore
seen from China
seen from United States
seen from United States
seen from China
seen from China
seen from Russia
seen from United States
Count связанных объектов B в каждом объекте A
Count и id
A.objects.annotate(num=Count('b__id')).values_list('num', 'id')