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goutomroy/medium_queryset_evaluation_caching_slicing.py

Last active June 7, 2019 16:18
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medium_queryset_evaluation_caching_slicing.py
# You can't use filter to queryset anymore.
queryset = Entry.objects.all()[10:100]
# You can use filter to q1 but not to q2, q3.
q1 = Entry.objects.all()
q2 = q1[1:10]
q3 = q2[1:5]
# saves results to cache of q1
lst1 = [each.blog.id for each in q1]
# saves results to cache of q2
lst2 = [each.blog.id for each in q2]
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