Daten aus mehreren Tabellen mit dem verwandten Namen in Django abrufen
Order.objects.select_related('account_customer').all() \
.values('customer_id', 'other_field_1', ...) \
.annotate(total_sales=Sum('total_price')) \
.filter(created_at__year=today.year, created_at__month=today.month)
Enthusiastic Eagle