gistfile1.erb

        <% if child.code_challenge? && !logged_in? %>
          <%= badge_image child, :alt => "", :class => "object-image" %>
          <h4><%= child.title %></h4>
        <% else %>
          <%= link_to_unit child do %>
            <%= badge_image child, :alt => "", :class => "object-image" %>
            <% if current_user && current_user.has_badge?(child.badge) %>
              <span class="icon icon-unlocked-badge-small"></span>
            <% end %>

            <h4><%= child.title %></h4>
          <% end %>
        <% end %>