Help in pagination for DetailView with ListView inside

[lambi...@gmail.com]

In the groups/views.py:

class SingleGroup(generic.DetailView):
    model = Group

groups/urls.py:

    url(r'^posts/group/(?P<slug>[-\w]+)/$', views.SingleGroup.as_view(), name='single_group'),

groups/group_detail.html:

{% extends 'groups/group_base.html' %}
{% block pre-group %}
<div class="col-md-4">
    <h1>{{ group.group_name }}</h1>
    <h2>Members Count: {{ group.members.count }}</h2>
    <div class="content">
        {% if user in group.members.all %}
        <a class="btn btn-warning" href="{% url 'groups:leave_group' slug=group.slug %}"><span class="glyphicon glyphicon-remove-circle"></span> Leave Group</a>
        {% else %}
 
       <a class="btn btn-warning" href="{% url 'groups:join_group'
slug=group.slug %}"><span class="glyphicon
glyphicon-ok-circle"></span> Join Group</a>
        {% endif %}
    </div>
</div>
{% endblock %}
{% block group_content %}
<div class="col-md-8">
    {% if group.post_counts.count == 0 %}
    <h2>No posts found</h2>
    {% else %}
    {% for post in group.posts.all %}
    {% include 'posts/_post.html' %}
    {% endfor %}
    {% endif %}
</div>
{% endblock %}

posts/_post.html:

<div class="post media">
    <h3>{{ post.message_html|safe }}</h3>
    <div class="media-body">
        <strong>
            {{ post.user.username }}
        </strong>
        <h5 class="media-heading">
            <span class="username"><a href="{% url 'posts:user_posts' username=post.user.username %}">@{{ post.user.username }}</a></span>
            <time class="time"><a href="{% url 'posts:single_post' username=post.user.username pk=post.pk %}">{{ post.date_created }}</a></time>
            {% if post.group %}
            <span class="group-name">in <a href="#">{{ post.group.group_name }}</a></span>
            {% endif %}
        </h5>
        <div class="media-footer">
            {% if user.is_authenticated and post.user == user and not hide_delete_button %}
            <a href="{% url 'posts:delete_post' pk=post.pk %}" class="btn btn-danger">
                <span class="glyphicon glyphicon-remove text-danger" aria-hidden="true"></span>
                <span class="text-danger icon-label"></span> Delete
            </a>
            {% endif %}
        </div>
    </div>
</div>

How do I use pagination in the DetailView? I only know to use it in ListView so far using the tutorials. I would gladly give more of the codes if the above are not helpful enough to solve the problem. Thank you in advance whoever can help!