Django: NotImplementedError: annotate() + distinct(fields) is not implemented
Try this:
Question.objects.annotate( answer_amount=Count('answers'), is_user_agreed=F('answers__is_agreed'),).order_by('id', '-answers__is_agreed').distinct('id')If question has no answers, then question.is_user_agreed is None. If question has at least one answer with answer.is_agreed=True, then question.is_agreed is True. Otherwise, is_user_agreed is False.
Or this:
agreed_questons = Answer.objects.filter( is_agreed=True,).values_list('question_id', flat=True).distinct()Question.objects.annotate( answer_amount=Count('answers'), is_agreed=Case( When(id__in=agreed_questions, then=True), When(answers__isnull=True, then=None), default=False, output_field=NullBooleanField(), ),)agreed_questons is list of id of questions, that have at least one answer with answer.is_agreed=True.