I have a model in which I created a field "bargain price " as shown in Models.py:

class Item(models.Model):
    title = models.CharField(max_length=100)
    price = models.FloatField()
    bargainprice = models.FloatField(default=0)

somewhere in my template I take input from user and update the bargain price using ajax as shown below:

  $.ajax({
        url: "/bargain/" + id + "/",
        data: { csrfmiddlewaretoken: window.CSRF_TOKEN, 'input': parseFloat(input) },
        type: 'POST'
    }).done(function (response) {
        alert(response);
    });

and I successfully update the price by the view:

def Bargain(request, uid):
  if request.method == 'POST':
      item = Item.objects.get(id=uid)
      item.bargainprice = request.POST['input']
      item.save()
      message = 'update successful'
      return HttpResponse(message)
  else:
      return HttpResponse("this is not working..")

**Now what I want. I want to reset this Bargain_price updated value to default after n seconds **

Can anyone suggest to me the method to do it? Thanks in advance.