app/views/layouts/_dashboard_menu.html.erb
<% if current_user.is_admin_of?(current_department) %>
<%# Admin Menu %>
<% content_for :left_nav do %>
<% if current_user.is_superuser? %>
<li class="dropdown">
<a class="dropdown-toggle" href="#" data-toggle="dropdown">Superuser Options <i class="fa fa-caret-right"></i></a>
<ul class="dropdown-menu">
<li><%= link_to "Application Settings", edit_app_config_path %></li>
<li><%= link_to "Manage Superusers", superusers_path %></li>
</ul>
</li>
<% end %>
<% if current_user.is_admin_of?(@department) %>
<li class="dropdown">
<a class="dropdown-toggle" href="#" data-toggle="dropdown">Admin Options <i class="fa fa-caret-right"></i></a>
<ul class="dropdown-menu">
<li><%= link_to "Department Settings", edit_department_config_path(@department.department_config) %></li>
<li><%= link_to "Calendars", calendars_path %></li>
<li><%= link_to "Permissions", department_roles_path(@department) %></li>
<li><%= link_to "Templates", templates_path %></li>
</ul>
</li>
<% end %>
<% end %>
<% end %>