[Answered ]-Django update a row

The problem is probably in your urls.py.

The update_form view takes an argument id, so you should include it in the url pattern.

url(r'^update_form/(?P<id>\d+)/$', update_form, name='update_form')

For example, to edit the object with id=1, you would go to /update_form/1/

You would have to include the id in the template context

return render_to_response('update_form.html'{'form':form, 'id': id},
                          context_instance=RequestContext(request))

And include it it the form action:

<form action ="/update_form/{{ id }}/" method="post">{%csrf_token%}

Using the url tag would be slightly better:

<form action ="{% url 'update_form' %}" method="post">{%csrf_token%}

You should pass the id of the row to the update_form view:

<form action="{% url 'update_form' id %}" method="post">

And in urls.py:

url(r'^update_form/(?P<id>\d+)/$', update_form, name='update_form'),