Rails best practice when embedding a signup form on every page -

i have user model validations behind it.

what i'd have signup form on every page of app, static ones.

i figured best way through helper methods in application_helpers.rb, works fine, validations don't seem work.

i can serve form through iframe, seems bit hacky.

i'm using partials now, client side validation (github.com/bcardarella/client_side_validations) works on /new page, not application page.

what's best practice in case?

one of basic solutions use partial. benefit is: it's built in, it's simple. downside is: you'll busy feed session details proper rendering.

another solution use cells kind of case.

cells works lightweight controller can controller can do, , it's independent on controller. 1 use case of cells shopping cart, , login form use case in opinion.