过滤Django Haystack结果，例如QuerySet？

问题描述

是否可以将Django Haystack搜索与内置 QuerySet过滤器操作结合使用，特别是使用Q（）实例和SearchQuerySet不支持的查找类型进行过滤？

Is it possible to combine a Django Haystack search with "built-in" QuerySet filter operations, specifically filtering with Q() instances and lookup types not supported by SearchQuerySet? In either order:

haystack-searched -> queryset-filtered

或

queryset-filtered -> haystack-searched

浏览Django Haystack文档没有给出如何执行此操作的指导。

Browsing the Django Haystack documentation didn't give any directions how to do this.

推荐答案

您可以使用对象的PK根据Haystack搜索的结果过滤查询集：

You could filter your queryset based on the results of a Haystack search, using the objects' PKs:

def view(request):
  if request.GET.get('q'):
    from haystack import ModelSearchForm
    form = ModelSearchForm(request.GET, searchqueryset=None, load_all=True)
    searchqueryset = form.search()
    results = [ r.pk for r in searchqueryset ]

    docs = Document.objects.filter(pk__in=results)
    # do something with your plain old regular queryset

    return render_to_response('results.html', {'documents': docs});

不确定这是如何缩放的，但是对于小的结果集（以我的情况为几百）工作正常。

Not sure how this scales, but for small resultsets (a few hundred, in my case), this works fine.

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