Django 1.6在反向字段和条件上进行注释

Question

我想基于远程模型的字段在远程模型（遍历2模型关系）上进行注释，只有它是假的。这可能吗？

foo = CommunityProfile.objects.annotate(answered_count=Count('threadvault__unanswered'=False))

Answer 1

首先过滤查询集，然后进行注释。

profiles = CommunityProfile.objects.filter(
    threadvault__unanswered=False
).annotate(
    answered_count=Count('threadvault')
)