Question

My Rails app /index path should show one page to logged in users, an entirely different page to admin users, and a totally different one for users who aren’t logged in.

So, one controller (HomeController), one action (index), three views.

I can implement this in two ways:

1. Insert if clauses into views/home/index.html.erb making it do the right thing.
2. Put the conditional logic into the controller somehow (make the controller find out who the user is) and then render a different layout accordingly, as described under 2.2.12 Finding Layouts in http://guides.rubyonrails.org/layouts_and_rendering.html.

I have a strong feeling the latter solution is the right one. But I’m not sure how to implement it, what with the user controller being a totally different controller. How can my home controller find out who the current user is to decide what view to render?

Answer 1

You have access to current_user object in all controllers, to check whether user is logged-in or not. Also we can get user role from the current_user object by

current_user.role_name

You can pass this role name to render partial as file name(Keep different files).