title: Django class based view pagination
body: <p> Hi i want to paginating queryset(lectures). and i tried. but it doesn'work 
  how can i do?
  
  </p>
  
  <pre>
  class tag_detail(View):
         def get(self, request, pk):
  
             tag_hit = get_object_or_404(TagModel, id=pk)
             tag_hit.view_cnt = tag_hit.view_cnt + 1
             tag_hit.save()
  
             tag = TagModel.objects.get(id=pk)
             lectures_data = LectureModel.objects.filter(tags__id=pk).order_by('-id')
             paginator = Paginator(lectures_data, 2)
  
             page = request.GET.get('page')
  
             try:
                lectures = paginator.page(page)
             except PageNotAnInteger:
                lectures = paginator.page(1)
             except EmptyPage:
                lectures = paginator.page(paginator.num_pages)
  
             return render(request, 'web/html/tag/tag_detail.html',{
                     'lectures':lectures
                     'tag':tag
             })
  </pre>