[Django]-Send response in html templates without reload page

You can do this usnig AJAX

Fisrt of all you have to define an AJAX view:

from .model import Customer# import here your model
from django.http.response import JsonResponse
from django.shortcuts import get_object_or_404


def ajax_view(request):
    results = {}
    if request.method == 'POST':
        pk = request.POST.get('pk',None)
        if pk:
            customer = get_object_or_404(Customer, id=pk)
            results['code'] = 200
            if customer.is_active:
                customer.is_active = False 
                results['status'] = 'inactive'
            else:
                customer.is_active = True
                results['status'] = 'active'
            customer.save()
        else:
            results['code'] = 404
    else:
        results['code'] = 500
    return JsonResponse(results)

Then create a new url in urls.py:

url(r'^activeConsumer$', views.ajax_view, name ="active_consumer"),

After that in your Template you define an AJAX call using JQuery:

<script>
 function active_consumer(id) {
   //AJAX DATA
    //you have to send data to server
    // first you have to get the id of the consumer
    // second you have to pass `csrfmiddlewaretoken` with data 
   data = {
     'pk':id,
     'csrfmiddlewaretoken' : '{{csrf_token}}' };

    //AJAX CALL
    $.post( "{% url 'active_consumer' %}", data).done(function(response) {
        if (response.code == 200) {
            if (response.status == "active") {
                 //here you have to change the status of the consumer to active in HTML
             }
             else {
                 //here you have to change the status of the consumer to inactive in HTML
             }
            }
        });
      }
</script>

In your HTML you make a call to the javascript function active_consumer :

<button name="button" value="OK" type="button" onclick="active_consumer({{lead.id}})" >change status</button>

UPDATE:

to check or uncheck the radio button , you must give it an id:

{%  if lead.is_active %}
<input id="myradio" type="radio" value="" checked>
{% else %}
<input id="myradio" type="radio" value="" >
{% endif %}

To check the radio button using JQuery:

$("#myradio").prop("checked", true)

To uncheck it:

$("#myradio").prop("checked", false)

So the javascript function will be like this:

<script>
 function active_consumer(id) {
   data = {
     'pk':id,
     'csrfmiddlewaretoken' : '{{csrf_token}}' };


    $.post( "{% url 'active_consumer' %}", data).done(function(response) {
        if (response.code == 200) {
            if (response.status == "active") {
                 //uncheck the radio button
                 $("#myradio").prop("checked", false)  
             }
             else {
                 //check the radio button
                 $("#myradio").prop("checked", true)
             }
            }
        });
      }
</script>