Proposed table api

gistfile1.erb

<%= table_for(@users) do |user| %>
  <% column '', user.class.to_s.first %>
  <% column 'ID', link_to(user.id, admin_user_path(user)) %>
  <% column 'Name', user.name %>
  <% column 'Email', user.email.andand.key %>
  <% column 'Facebook' do %>
    <% if user.facebook %>
      <%= link_to user.facebook.key, "https://facebook.com/#{user.facebook.key}", target: "_blank" %>
      <%= 'token' if user.facebook.access_token %>
    <% end %>
  <% end %>
<% end %>