app/views/shared/_user.html.erb
<% if user_signed_in? %>
<li><%= link_to "My Questions", user_path(current_user) %></li>
<li><%= link_to "Settings", edit_user_registration_path %></li>
<li><%= link_to "Sign out", destroy_user_session_path %></li>
<% if false %>
<li>
<%= link_to "#" do %><%# @todo ST make dropdown appear %>
<%= current_user.alternate_name %> <span class="icon-angle-down"></span>
<% end %>
</li>
<% end %>
<% else %>
<li><%= link_to "Sign up", new_user_registration_path %></li>
<li><%= link_to "Login", new_user_session_path %></li>
<li><%= link_to("Login with Facebook",
user_omniauth_authorize_url(:facebook,
protocol: Rails.env.production? ? "https://" : "http://"),
class: "facebook-login") -%></li>
<% end %>