Question

Is there any better way to do this

us = User.objects.filter(id=someid)
if us.exists():
   u = us[0]

As I see in the sql log, us.exists() will execute a sql query, then u = us[0] will execute another query. So we have to do 2 query to get thing done. I just want to ask for a better way to do this

Answer 1

.get() does not make use of django queryset caching. So if you are really want to use and reuse the queryset, better way would be to catch IndexError like:

us = User.objects.filter(id=someid)
try:
   u = us[0]
except IndexError:
    #item does not exist.