app/views/tracks/comments/index.html.erb
<div class="subpage">
<%= render_flash_messages %>
<%= render_track_comment_toolbar_field %>
<% if @track_comments.length > 0 %>
<%= render_track_comment_list(@track_comments) %>
<% else %>
<p>尚無任何留言</p>
<% end %>
<%= render_track_comment_form(@track_comment) %>
</div>
<%= render_debug_information %>