How can I overwrite the old record instead of creating a new one?

Question

• I am following <"http://tutorial.djangogirls.org/en/django_forms/index.html"> Django Girls to create my first web application project.
• I have created form and added the username password option.
• Now , I login as "user1" and input some data in form.
• Again, I login as "user1" and input some data in form.
• What's happening is instead of overwriting(which I thought would happen) it's creating new database.
• I want form to update when user login again
• One Example would be very helpful thanks in advance

Answer 1

you can just scroll down the blog you are referring to....they have explained the edit form in detail link

In brief: You have to add a new url to edit your user like:

url(r'^user/(?P<pk>[0-9]+)$', views.UserEdit),

and in views:

def UserEdit(request, pk):
    user = get_object_or_404(User, pk=pk)
    if request.method == "POST":
        form = UserForm(request.POST, instance=user)
        if form.is_valid():
            ...
            return redirect('detail_user', pk=user.pk)
    else:
        form = UserForm(instance=user)
    return render(request, 'user_detail.html', {'form': form})