Rails - method doesn't exist error when trying to use user hook to find out when user signed in - devise

Question

Obviously User.first.current_sign_in_at is what I want to use, but how to add this in a hook?

before_save :login_hook, :if => current_sign_in_at_changed?

but I get method doesn't exist.

Here it seems to work:

Execute JS code on user sign up/sign in with Rails + Devise

I have devise :trackable in the model and t.trackable in my migration. The database value is also updated

Answer 1

For now, forget the hook, just try using

if (Time.new - current_user.last_sign_in_at) < 600 # seconds, so 10 minutes
  do stuff
else
  # do other stuff, probably a redirect
  # possibly  sign_out_and_redirect(resource_name)
end

You probably want this in your application_controller so as to apply to all.