2

<div class="panel panel-default">
    <div class="panel-heading">
        	<h3>Navigation</h3>

    </div>
		  <div id="sidebar" class="list-group">
				<a href="#" class="list-group-item active">
					<i class="icon-dashboard"></i> Dashboard
				</a>
				<a href="#users" class="list-group-item" data-toggle="collapse" data-parent="#sidebar">	
					<i class="icon-group"></i> Users<span class="badge bg_danger">0</span>
				</a>

		  <div id="users" class="list-group subitem collapse in">
				<a href="#" class="list-group-item">
					<i class="icon-caret-right"></i> Users<span class="badge bg_danger">0</span></a>
				<a href="#" class="list-group-item">
					<i class="icon-caret-right"></i> Create User</a>
				<a href="#" class="list-group-item">
					<i class="icon-caret-right"></i> Create Group</a>
		  </div>

			<a href="#articles" class="list-group-item" data-toggle="collapse" data-parent="#sidebar">
					<i class="icon-file-text"></i> Articles<span class="badge bg_danger">0</span></a>

		  <div id="articles" class="list-group subitem collapse">	
				<a href="#" class="list-group-item bg_warning">
					<i class="icon-caret-right"></i> Articles<span class="badge bg_danger">0</span></a>
				<a href="#" class="list-group-item">
					<i class="icon-caret-right"></i> Create Article</a>

		  </div>
    </div>
</div>

<div class="panel panel-default">
  <div id="sidebar" class="list-group">
    <ul>
      <% @universities.each do |uni| %>
        <li><%= link_to uni.alias, uni %></li>
        <ul>
          <% uni.courses.each do |course| %>
            <li><%= link_to course.alias, course %></li>
          <% end %>
        </ul>
      <% end %>
    </ul>
  </div>
</div>