Question

I am creating my first web app and am trying to understand how to write a page which shows the results of a submitted form and would like some guidance on how to do this.

I have written a form which is working. The form runs some apis that output the results in to a database. I would like to show the values from the database in a results page. The database has a table that holds an test ID which is created when the form is submitted. I can get the ID from the database by doing a

select max(id) from test

So if i were a user and submitted a form, I would like to be directed to the results page for that ID. So say if the test ID was 10, the url should be http:// /results/id where the id is the value returned by select max(id) from test. I thought about using a hidden field to grab the ID in the form so I can use this to create the url. Has anyone got any ideas on how to do this.

Thanks – Vioilly

Answer 1

running something like get max id from database is rather bad. What if someone else posts a form right after you and you get that id as maximum?

Rather do something like that (in case of modelforms)

if form.is_valid():
  o = form.save()
  return HttpResponseRedirect('results/'+str(o.id)+'/')

Alan