Added base app from which all other apps inherit and made corresponding changes in other apps.
{% extends "blog/base_blog.html" %}
{% block title %}{{ object.title }}{% endblock %}
{% block body_class %}{{ block.super }} post_detail{% endblock %}
{% block body_id %}post_{{ object.id }}{% endblock %}
{% block content_title %}
<h2>{{ object.title }}</h2>
<p class="other_posts">
{% if object.get_previous_by_publish %}
<a class="previous" href="{{ object.get_previous_post.get_absolute_url }}">« {{ object.get_previous_post }}</a>
{% endif %}
{% if object.get_next_by_publish %}
| <a class="next" href="{{ object.get_next_post.get_absolute_url }}">{{ object.get_next_post }} »</a>
{% endif %}
</p>
{% endblock %}
{% block content %}
{% load blog markup comments tagging_tags %}
<h1>{{ object.title }}</h1>
<p class="date">{{ object.publish|date:"j F Y" }}</p>
<div class="body">
{{ object.body|markdown:"safe" }}
</div>
{% tags_for_object object as tag_list %}
{% if tag_list %}
<p class="inline_tag_list"><strong>Related tags:</strong>
{% for tag in tag_list %}
{{ tag }}{% if not forloop.last %}, {% endif %}
{% endfor %}
</p>
{% endif %}
{% get_comment_list for object as comment_list %}
{% if comment_list %}
<div id="comments">
<a name="comments"></a>
<h3 class="comments_title">Comments</h3>
{% for comment in comment_list %}
{% if comment.is_public %}
<div class="comment">
<h5 class="name">
<a name="c{{ comment.id }}" href="{{ comment.get_absolute_url }}" title="Permalink to {{ comment.person_name }}'s comment" class="count">{{ forloop.counter }}</a>
{% if comment.user_url %}<a href="{{ comment.user_url }}">{{ comment.user_name }}</a>{% else %}{{ comment.user_name }}{% endif %} says...
</h5>
{{ comment.comment|urlizetrunc:"60"|markdown:"safe" }}
<p class="date">Posted at {{ comment.submit_date|date:"P" }} on {{ comment.submit_date|date:"F j, Y" }}</p>
</div>
{% endif %}
{% endfor %}
</div>
{% endif %}
{% if user.is_authenticated %}
{% if object.allow_comments %}
<div id="comment_form">
{% render_comment_form for object %}
</div>
{% else %}
<div id="comment_form">
<h3>Comments are closed.</h3>
<p>Comments have been close for this post.</p>
</div>
{% endif %}
{% else %}
<div id="comment_form">
<h3>Comments are closed.</h3>
<p>Please login in to comment.</p>
</div>
{% endif %}
{% endblock %}