django form resubmitted upon refresh

After I submit the form for the first time and then refresh the form it gets resubmitted and and I don't want that.

Here's my form in template :

<form action = "" method = "POST"> {% csrf_token %}
    {{ form.as_p }}
    <input type = "submit" value = "Shout!"/>
</form>

How can I fix this ?

Here's my views:

def index(request):
    shouts = Shout.objects.all()

    if request.method == "POST":
        form = GuestBookForm(request.POST)
        if form.is_valid():
            cd = form.cleaned_data
            shout = Shout(author = cd['author'], message = cd['message'])
            shout.save()
            form = GuestBookForm()
    else:
        form = GuestBookForm()

    return render_to_response('guestbook/index.html', {'shouts' : shouts,
                                             'form' : form },
                              context_instance = RequestContext(request))

My guess is that this is a problem in your view.

After successful submission and processing of a web form, you need to use a return HttpResponseRedirect, even if you are only redirecting to the same view. Otherwise, certain browsers (I'm pretty sure FireFox does this) will end up submitting the form twice.

Here's an example of how to handle this...

def some_view(request):
  if request.method == "POST":
    form = some_form(request.POST)
    if form.is_valid():
      # do processing
      # save model, etc.
      return HttpResponseRedirect("/some/url/")
  return render_to_response("normal/template.html", {"form":form}, context_instance=RequestContext(request))

Given your recently added view above...

def index(request):
    shouts = Shout.objects.all()

    if request.method == "POST":
        form = GuestBookForm(request.POST)
        if form.is_valid():
            cd = form.cleaned_data
            shout = Shout(author = cd['author'], message = cd['message'])
            shout.save()

            # Redirect to THIS view, assuming it lives in 'some app'
            return HttpResponseRedirect(reverse("some_app.views.index"))
    else:
        form = GuestBookForm()

    return render_to_response('guestbook/index.html', {'shouts' : shouts,
                                         'form' : form },
                          context_instance = RequestContext(request))

That will use reverse to redirect to this same view (if thats what you are trying to do)

Most likely: When you refresh after submitting the form, you are showing the same form page again (without doing anything). You either need to redirect to the record page or a new page after the form has been submitted.

That way, the form becomes empty its data and will not resubmit when you refresh.

Simply try

return redirect ('url', parameter_if_needed)

instead of

return render (request, 'name.hmtl', context)

in my case it works perfectly