django搜索表单,仅在提交表单时查询
这是我的看法django搜索表单,仅在提交表单时查询,django,search,Django,Search,这是我的看法 class SingleNewsView(ListView): model = News form_class = SearchForm template_name = "single_news.html" def get(self, request, pk, **kwargs): self.pk = pk self.pub_from = request.GET.get('pub_date_from',False) self.pub_to = req
class SingleNewsView(ListView):
model = News
form_class = SearchForm
template_name = "single_news.html"
def get(self, request, pk, **kwargs):
self.pk = pk
self.pub_from = request.GET.get('pub_date_from',False)
self.pub_to = request.GET.get('pub_date_to',False)
self.crawlers = request.GET.get('crawler',False)
print self.crawlers
return super(SingleNewsView,self).get(request,pk, **kwargs)
def get_context_data(self, **kwargs):
context = super(SingleNewsView,self).get_context_data(**kwargs)
context["form"] = SearchForm#(self.request.GET)
context["something"] = News.objects.filter(category_id=self.pk).filter(published_date__range=(self.pub_from,self.pub_to), crawler=self.crawlers)
return context
在这里,当我进入页面时,它不会显示任何新闻,因为没有提供to数据。我希望所有的新闻最初都显示出来,当用户提交表单时,只进行过滤工作。我该怎么做呢?您应该添加
get\u queryset()
方法,而不是在get\u context\u data()
中进行过滤。您可以添加如下方法
def get_queryset(self):
qs = News.objects.filter(category_id=self.pk)
#you can change this to just support one of the pub_from or pub_to
if self.pub_from and self.pub_to :
qs = qs.filter(published_date__range=(self.pub_from,self.pub_to)
if self.crawler:
qs = qs.filter(crawler=self.crawlers)