Django - Order_by 一个查询集不止一次

Question

I want to re-order my queryset after ordering it once. Is it possible?

Here is my get_queryset method:

def get_queryset(self):
    id_ordered_logs = BatchLog.objects.filter(batch__user__isnull=False)\
    .order_by('-batch_id').distinct('batch_id')
    return id_ordered_logs

I want to order this list by their created_at fields, this is what I want to do:

def get_queryset(self):
    id_ordered_logs = BatchLog.objects.filter(batch__user__isnull=False)\
    .order_by('-batch_id').distinct('batch_id')
    return id_ordered_logs.order_by('-created_at')

I'd like to know if this is possible.

Thanks and regards.

Answer 1

maybe you can try this

id_ordered_logs = BatchLog.objects.filter(batch__user__isnull=False)\
    .order_by('-batch_id', '-created_at').distinct('batch_id')

Answer 2

fixed it by this implementation:

def get_queryset(self):
    id_ordered_logs = BatchLog.objects.filter(batch__user__isnull=False).order_by('batch_id').distinct('batch_id')
    return BatchLog.objects.filter(id__in=id_ordered_logs).order_by('-created_at')