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philippeowagner/gist:9263b6460a61e8c47cedce9e1d3ba3d3

Forked from renyi/gist:4522029
Created May 31, 2017 14:42
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Queryset sorting
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gistfile1.py
# http://stackoverflow.com/questions/431628/how-to-combine-2-or-more-querysets-in-a-django-view
from itertools import chain
from operator import attrgetter
def join_list(*args, sort_key=None):
if sort_key:
return sorted(chain(args), key=attrgetter(sort_key))
return list(chain(args))
Raw
gistfile2.py
# Unsorted
teacher_list = assistant_teacher_list | subjectgroup_teacher_list | other_teacher_list
#Sorted
teacher_list = join_list(assistant_teacher_list, subjectgroup_teacher_list, other_teacher_list)
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