{% block right-content %}         <div class="row">        <div class="list-group ">             <h4>主机列表</h4>             <ul class="list-group " id="groups"  >                {%  for group in request.user.userprofile.host_groups.select_related %}                    <li class="list-group-item">                        {{ group }}                        <span class="badge">{{ group.host_set.count }}</span>                    </li>                    <ul class="list-group hidden">                        {%  for host in group.host_set.select_related %}                            <li class="list-group-item">                                    {{ host }}                            </li>                         {% endfor %}                    </ul>                    <hr>                {% endfor %}             </ul>        </div>    </div>{% endblock %}{% block js %}<script>    $(document).ready(function () {        $("#groups li").click(function () {            $(this).addClass("active")            $(this).siblings().removeClass("active")            $(this).siblings().children().removeClass("active")            $(this).parent().siblings().removeClass("active")            $(this).next().removeClass("hidden")            $(this).next().siblings('ul').addClass("hidden")        })    })</script>