django order_by query set, ascending and descending

Question

How can I order by descending my query set in django by date?

Reserved.objects.all().filter(client=client_id).order_by(\'check_in\')

I just

Answer 1

1. Ascending order

   Reserved.objects.all().filter(client=client_id).order_by('check_in')
   

2. Descending order

   Reserved.objects.all().filter(client=client_id).order_by('-check_in')
   

- (hyphen) is used to indicate descending order here.