python - Django using aggregate MAX -

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i have following...

r = region.objects.get_location_name(user.location)

which returns: 

[<region: great britain>, <region: europe>]

next want return object max highest parent.

i have tried this:

r = region.objects.get_location_name(user.location).aggregate(max('level'))

but not return object returns...

{'level__max': 1}

why?

you're looking order_by: sort queryset descending 'level' , first item doing queryset[0].

i think code should like

r = region.objects.get_location_name(user.location).order_by('-level')[0]

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