Next code not working right
def get_queryset(self, request):
qs = super(QuestionAdmin, self).get_queryset(request)
qs = qs.annotate(
count_answers=models.Count('answers', distinct=True),
count_tags=models.Count('tags', distinct=True),
count_opinions=models.Count('opinions', distinct=True),
scope=models.Sum(
models.Case(
models.When(opinions__is_useful=True, then=1),
models.When(opinions__is_useful=False, then=-1),
output_field=models.IntegerField()
), distinct=True
),
)
return qs
I am tried made new field manually as:
def get_queryset(self, request):
qs = super(QuestionAdmin, self).get_queryset(request)
qs = qs.annotate(
count_answers=models.Count('answers', distinct=True),
count_tags=models.Count('tags', distinct=True),
count_opinions=models.Count('opinions', distinct=True),
)
(setattr(i, 'scope', i.get_scope()) for i in qs)
return qs
But Django not visible my new field (error from traceback):
*Cannot resolve keyword 'scope' into field. Choices are: answers, author,
author_id, count_answers, count_opinions, count_tags, date_added,
date_modified, id, is_dublicated, opinions, slug, status, tags,
text_question, title, views*
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