Django ListView - Form to filter and sort

You don't need post. Pass the filter value and order_by in the url for example:

.../update/list/?filter=filter-val&orderby=order-val

and get the filter and orderby in the get_queryset like:

class MyView(ListView):    model = Update    template_name = "updates/update.html"    paginate_by = 10    def get_queryset(self):        filter_val = self.request.GET.get('filter', 'give-default-value')        order = self.request.GET.get('orderby', 'give-default-value')        new_context = Update.objects.filter(            state=filter_val,        ).order_by(order)        return new_context    def get_context_data(self, **kwargs):        context = super(MyView, self).get_context_data(**kwargs)        context['filter'] = self.request.GET.get('filter', 'give-default-value')        context['orderby'] = self.request.GET.get('orderby', 'give-default-value')        return context

Make sure you give proper default value to filter and orderby

Example form (you can modify this to your need):

<form method="get" action="{% url 'update-list' %}">    <p>Filter: <input type="text" value={{filter}} name="filter"/></p>    <p>order_by: <input type="text" value={{orderby}} name="orderby"/></p>    <p><input type="submit" name="submit" value="submit"/></p></form>

I am wondering why nobody mentioned here this cool library: django-filter https://github.com/carltongibson/django-filter

you can define your logic for filtering very clean and get fast working forms etc.

demo here: https://stackoverflow.com/a/46492378/953553

I posted this elsewhere but I think this adds to the selected answer.

I think you would be better off doing this via get_context_data. Manually create your HTML form and use GET to retrieve this data. An example from something I wrote is below. When you submit the form, you can use the get data to pass back via the context data. This example isn't tailored to your request, but it should help other users.

def get_context_data(self, **kwargs):    context = super(Search, self).get_context_data(**kwargs)    filter_set = Gauges.objects.all()    if self.request.GET.get('gauge_id'):        gauge_id = self.request.GET.get('gauge_id')        filter_set = filter_set.filter(gauge_id=gauge_id)    if self.request.GET.get('type'):        type = self.request.GET.get('type')        filter_set = filter_set.filter(type=type)    if self.request.GET.get('location'):        location = self.request.GET.get('location')        filter_set = filter_set.filter(location=location)    if self.request.GET.get('calibrator'):        calibrator = self.request.GET.get('calibrator')        filter_set = filter_set.filter(calibrator=calibrator)    if self.request.GET.get('next_cal_date'):        next_cal_date = self.request.GET.get('next_cal_date')        filter_set = filter_set.filter(next_cal_date__lte=next_cal_date)    context['gauges'] = filter_set    context['title'] = "Gauges "    context['types'] = Gauge_Types.objects.all()    context['locations'] = Locations.objects.all()    context['calibrators'] = Calibrator.objects.all()    # And so on for more models    return context