polyglot/app/views/shared/_navbar.html.erb

<div class="polyglot-navbar">
  <div class="logo">
      Polyglot
  </div>

  <div class="right-align">
    <div class="links">
      <div class="active"><%= link_to "Dashboard", contacts_path %></div>
      <div><%= link_to "Settings", "#" %></div>
    </div>
    <div class="profile">
    <% if current_user.nil? %>
      <%= link_to "Login", new_user_session_path  %>
    <% else %>
      <div class="dropdown">
        <div data-toggle="dropdown">
          <% if current_user.photo.url.nil? %>
            <img src="https://upload.wikimedia.org/wikipedia/commons/8/89/Portrait_Placeholder.png" class="avatar dropdown-toggle img-circle">
          <% else %>
            <%= cl_image_tag current_user.photo, class: "avatar dropdown-toggle img-circle"%>
          <% end %>
        </div>
        <ul class="dropdown-menu dropdown-menu-right">
          <!-- <li><a href="#">Profile</a></li> -->
          <li><%= link_to "Profile", user_path(current_user) %></li>
          <li><%= link_to "Logout", destroy_user_session_path %></li>
        </ul>
      </div>
    <% end %>
    </div>
  </div>
</div>