WizardForm save step information on exit

You need some way to identify yourself as the person who as started filling out the form.

If you’re using authenticated users, you could identify the partial form completion by user.

If not, then you could use sessions if the requirement is that this be completed in one sitting. Otherwise you’ll need to use some type of identifier if a person goes away and comes back later.

While the topic is not exactly the same, see the thread at Passing UUID from one view to another for some other ideas.