Multi form devise registration setup with admin approval
Implement a registration with multiple steps and after all is complete, display "We will approve your application" at the end and wait when an internal admin (only to owners of the app) will approve the account
For implementing admin thing is documented here:
but I can't see good pattern for implementing multi step sign up
If you're using Devise, as long as you do the email/password registration as the first step, that makes it pretty easy. You can use like https://github.com/schneems/wicked to setup the rest of the steps.
I would just put a
before_action around all your controllers so that it forces your user to an "awaiting approval" page until they are approved. You can still let them log in and view their account but they won't be able to do anything.