How do I toggle boolean field

1. In template file change the input tag as shown

<!-- Mark the checkbox as checked or not by is_private -->
<input type="checkbox" class="custom-control-input" id="customSwitches" {% if p.is_private %}checked{% endif %}>

In that same template file add this script

<script type="text/javascript">
    $(document).ready(function() {
        // send request to change the is_private state on customSwitches toggle
        $("#customSwitches").on("change", function() {
            $.ajax({
                url: "{% url 'change_privacy' %}",
                data: {
                    csrfmiddlewaretoken: "{{ csrf_token }}",
                    is_private: this.checked // true if checked else false
                },
                type: "POST",
                dataType : "json",
            })
            // $.ajax().done(), $.ajax().fail(), $ajax().always() are upto you. Add/change accordingly
            .done(function(data) {
                console.log(data);
                // show some message according to the response. 
                // For eg. A message box showing that the status has been changed
            })
            .always(function() {
                console.log('[Done]');
            })
        })
    });
</script>

2. Add a new path in your urls file of the app which binds to a view. Say: a function named change_privacy() in your views

path('changeprivacy', change_privacy, name="change_privacy"),

3. In views file add a new function. You need to import JsonResponse

from django.http import JsonResponse

def change_privacy(request):
    if request.is_ajax() and request.method=='POST':

        profile = Profile.objects.get(user=request.user)

        profile.is_private = True if request.POST.get('is_private') == 'true' else False
        profile.save()
        data = {'status':'success', 'is_private':profile.is_private}
        return JsonResponse(data, status=200)
    else:
        data = {'status':'error'}
        return JsonResponse(data, status=400)