Django-haystack 无法按日期时间过滤

Question

版本：
django-haystack (2.6.1)
姜戈 (1.11.4)

我正在尝试创建一个搜索表单，然后是游览：
筛选开始日期后，sqs 变为空。
怎么了？

表格.py:

class DateRangeSearchForm(SearchForm):
    start_date = forms.DateTimeField(required=False)
    end_date = forms.DateTimeField(required=False)


    def search(self):
        sqs = super(DateRangeSearchForm, self).search()
        print (sqs[0].object.publish_date) #2017-10-23 02:10:40.673000+00:00
        print (self.cleaned_data['start_date']) #2017-10-17 00:00:00+08:00
        print (self.cleaned_data['start_date']<sqs[0].object.publish_date) #true
        print (len(sqs)) #19

        if not self.is_valid():
            print("no query found/n")
            return self.no_query_found()

        if self.cleaned_data['start_date']:
            sqs = sqs.filter(publish_date__gte=self.cleaned_data['start_date'])
            print(len(sqs))#0

        return sqs

意见.py：

from .forms import DateRangeSearchForm
from .models import Article

class postManageSearchView(SearchView):
    template_name='backendSys/post_manageSearch.html'
    form_class = DateRangeSearchForm

    def get_context_data(self, **kwargs):
        context = super(postManageSearchView, self).get_context_data(**kwargs)
        admin = self.request.user.profile.admin.get(admin__user__pk=self.kwargs['pk'])
        permission = admin.permission.filter()
        articles = Article.objects.filter()
        context['permission'] = permission
        context['articles'] = articles
        return context

Answer 1

尝试在forms.py中使用SearchOuerySet

from haystack.query import SearchQuerySet
    class DateRangeSearchForm(SearchForm):
        start_date = forms.DateTimeField(required=False)
        end_date = forms.DateTimeField(required=False)


        def search(self):
            sqs = super(DateRangeSearchForm, self).search()
            print (sqs[0].object.publish_date) 
            print (self.cleaned_data['start_date'])
            print (self.cleaned_data['start_date']<sqs[0].object.publish_date)
            print (len(sqs)) 

            if not self.is_valid():
                print("no query found/n")
                return self.no_query_found()

            if self.cleaned_data['start_date']:
                sqs = SearchQuerySet().filter(publish_date__gte=self.cleaned_data['start_date'])
                print(len(sqs))
            return sqs

在views.py中添加get_queryset()

class postManageSearchView(SearchView):
    template_name='backendSys/post_manageSearch.html'
    form_class = DateRangeSearchForm

    def get_context_data(self, **kwargs):
        context = super(postManageSearchView, self).get_context_data(**kwargs)
        admin = self.request.user.profile.admin.get(admin__user__pk=self.kwargs['pk'])
        permission = admin.permission.filter()
        articles = Article.objects.filter()
        context['permission'] = permission
        context['articles'] = articles
        return context

    def get_queryset(self):
        queryset = super(postManageSearchView, self).get_queryset()
        return queryset.all