So I'm building a rails app for high school students and I've hit a problem when it comes to creating users.

I want the students to only be able to create accounts if they select their school and type in their school's password correctly.

What is the correct / easiest way of doing this? Should I create a gatekeeper to the user#new action that they have to pass first or if their a way that on the same page a student can submit to forms. One would be the regular username, email, password using:

form_for @user do
  ...
end

But then creating another form for the high-school / high-school password selection.

Ideally the controller would be able to get the params of the high-school form, validate those, then go on to create the user from the user params.

Is this possible using rails?

My setup: Rails 3 and Ruby 1.9.2dev

Thank you!