合并多个SearchQuerySet

Question

我使用Haystack和solr对多个模型进行全局搜索，我尝试对模型使用不同的过滤器，但最后我必须返回1个查询集，我不知道如何合并。

#views
from haystack.generic_views import SearchView

class search(SearchView):

    def get_queryset(self):
        queryset = super(search, self).get_queryset()
        q1 = queryset.models(Event).filter(...)
        q2 = queryset.models(News).filter(...)
        queryset = q1 | q2 #don't work
        queryset = list(chain(q1, q2)) #don't work
        return queryset.order_by('-pub_date','cname')

谢谢

Answer 1

我已经找到了一种修改上下文的方法，但我不确定这是最好的…

def excludeResults(results):
    for i in results:
        if i.model == Event and i.date < datetime.now():    
        results.remove(i)

    return results

class search(SearchView):
    def get_queryset(self):
        queryset = super(search, self).get_queryset()
        return queryset.filter(visible = True).order_by('cname','-pub_date')

    def get_context_data(self, *args, **kwargs):
        context = super(search, self).get_context_data(*args, **kwargs)
        context['page_obj'].object_list = excludeResults(context['page_obj'].object_list)


        return context

也许是最好的解决方案？