ブログ記事の表示とコメント機能

<div class="article">
  <h2 class="article-title">{{ article.title }}</h2>
  <p class="article-details">posted <span class="article-time">{{ article.created_at | date: "%Y %h" }}</span> by <span class="article-author">{{ article.author }}</span></p>

  <div class="article-body textile">
    {{ article.content }}
  </div>

</div>

<!-- Comments -->
{% if blog.comments_enabled? %}
<div id="comments">
  <h3>Comments</h3>

  <!-- List all comments -->
  <ul id="comment-list">
  {% for comment in article.comments %}
    <li>
      <div class="comment-details">
        <span class="comment-author">{{ comment.author }}</span> said on <span class="comment-date">{{ comment.created_at | date: "%B %d, %Y" }}</span>:
      </div>

      <div class="comment">
        {{ comment.content }}
      </div>
    </li>
  {% endfor %}
  </ul>

  <!-- Comment Form -->
  <div id="comment-form">
  {% form article %}
    <h3>Leave a comment</h3>

    <!-- Check if a comment has been submitted in the last request, and if yes display an appropriate message -->
    {% if form.posted_successfully? %}
      {% if blog.moderated? %}
        <div class="notice">
          Successfully posted your comment.<br />
          It will have to be approved by the blog owner first before showing up.
        </div>
      {% else %}
        <div class="notice">Successfully posted your comment.</div>
      {% endif %}
    {% endif %}

    {% if form.errors %}
      <div class="notice error">Not all the fields have been filled out correctly!</div>
    {% endif %}

    <dl>
      <dt class="{% if form.errors contains 'author' %}error{% endif %}"><label for="comment_author">Your name</label></dt>
      <dd><input type="text" id="comment_author" name="comment[author]" size="40" value="{{form.author}}" class="{% if form.errors contains 'author' %}input-error{% endif %}" /></dd>

      <dt class="{% if form.errors contains 'email' %}error{% endif %}"><label for="comment_email">Your email</label></dt>
      <dd><input type="text" id="comment_email" name="comment[email]" size="40" value="{{form.email}}" class="{% if form.errors contains 'email' %}input-error{% endif %}" /></dd>

      <dt class="{% if form.errors contains 'body' %}error{% endif %}"><label for="comment_body">Your comment</label></dt>
      <dd><textarea id="comment_body" name="comment[body]" cols="40" rows="5" class="{% if form.errors contains 'body' %}input-error{% endif %}">{{form.body}}</textarea></dd>
    </dl>

    {% if blog.moderated? %}
      <p class="hint">comments have to be approved before showing up</p>
    {% endif %}

    <input type="submit" value="Post comment" id="comment-submit" />
  {% endform %}
  </div>
  <!-- END Comment Form -->

</div>
{% endif %}
<!-- END Comments -->