Question

首先，我使用articles_in_cat（works）获取类别中的文章，然后尝试使用articles_hit获取代表这些文章的HitCount对象。 articles_hit不会抛出任何错误，但它是一个空列表。知道问题是什么吗？

def cat_home(request, id):
    n = categories.objects.get(id = id)
    articles_in_cat = list(article.objects.filter(category = n))
    articles_hit = list(HitCount.objects.filter(object_pk = articles_in_cat).order_by('hits')

Answer 1

让我们再试一次：

n = categories.objects.get(id = id) #  you say it works

# you wrote 'article' but model's name should be Article
articles_titles_in_cat [a.title for a in article.objects.filter(category = n)] 
# it should give you articles' title which match category n

#and then
articles_hit = list(HitCount.objects.filter(object_pk__in = articles_titles_in_cat).order_by('hits'))
#assuming object_pk contains "article's title" as you mentioned in a coment

过滤列表，没有结果。代码和里面的更多细节

1 个答案: