Django-/ prescription /'PrescriptionView'对象上的AttributeError没有属性'object_list'

Question

我正在使用ajax post调用将数据数组发送到我的视图，如下所示：

class PrescriptionView(generic.ListView):
    template_name = 'meds/prescription.html'
    context_object_name = 'meds'
    model = Medicament

    def post(self, request, **kwargs):
        selected_ids = request.POST.getlist('selected[]')
        context = {'meds': Medicament.objects.filter(id__in=selected_ids)}
        return super(PrescriptionView, self).render_to_response(context)

如您所见，我的视图是一个ListView，我只想列出与selected_ids中的id对应的那些对象，即Medicament.objects.filter(id__in=selected_ids)但是由于某些原因，我不断收到以下错误消息：

AttributeError at /prescription/
'PrescriptionView' object has no attribute 'object_list'

Traceback:  

File "/home/nids/cabin/dentist/lib/python3.5/site-packages/django/core/handlers/base.py" in get_response
  149.                     response = self.process_exception_by_middleware(e, request)

File "/home/nids/cabin/dentist/lib/python3.5/site-packages/django/core/handlers/base.py" in get_response
  147.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/home/nids/cabin/dentist/lib/python3.5/site-packages/django/views/generic/base.py" in view
  68.             return self.dispatch(request, *args, **kwargs)

File "/home/nids/cabin/dentist/lib/python3.5/site-packages/django/views/generic/base.py" in dispatch
  88.         return handler(request, *args, **kwargs)

File "/home/nids/cabin/meds/views.py" in post
  38.         return super(PrescriptionView, self).render_to_response(context)

File "/home/nids/cabin/dentist/lib/python3.5/site-packages/django/views/generic/base.py" in render_to_response
  132.             template=self.get_template_names(),

File "/home/nids/cabin/dentist/lib/python3.5/site-packages/django/views/generic/list.py" in get_template_names
  200.         if hasattr(self.object_list, 'model'):

Exception Type: AttributeError at /prescription/
Exception Value: 'PrescriptionView' object has no attribute 'object_list'

编辑

Ajax呼叫：

    jQuery(document).ready(function($) {
        $( "#continue" ).click(function() {
            var selected = $("#meds").bootgrid("getSelectedRows");
            console.log(selected);
            $.ajax({
                type: "POST",
                url: "{% url 'meds:prescription' %}",
                data: {selected:'selected' , csrfmiddlewaretoken: "{{ csrf_token }}"},
                success: function(result) {
                    $('#message').html("<h2>Contact Form Submitted!</h2>")
                }
            });
        });
    });

注意：选择的是数组

Answer 1

一次，我在发送数据数组时使用了以下模式：

var roles = data_selected();

$.ajax({
    type: 'POST',
    url: '/get_roles/',
    data: {'roles[]': roles},
   });
 });

而且，在Django视图中，我

 def get_roles(request):
     roles = request.POST.getlist('roles[]')
     ....

你可以分享你的ajax电话吗？ 我认为发送时数据可能会混乱？

处理职位要求：

def post(self, request, **kwargs):
      selected_ids = request.POST.getlist('selected[]')
      meds = self.get_queryset().filter(id__in=selected_ids)
      return render(request, self.template_name, {'meds': meds })