MASA/app/partials/sidebar/sidebar.html

<div class="col-sm-3 col-md-2 sidebar">
    <ul class="nav nav-sidebar">
        <div class="container-fluid">
            <div class="row">
                <div class="col-sm-3 col-md-2 sidebar">
                    <ul class="nav nav-sidebar">
                        <li ng-repeat="item in items" 
                        ng-click="showChilds($index)">
                            <a>{{item.text}}</a>
                            <ul class="nav nav-sidebar text-center">
                                <li ng-repeat="subItem in item.subItems" 
                                ng-show="item.active"
                                ng-click="showChilds($index)"
                                ui-sref-active="active">
                                    <a data-ui-sref="{{ subItem.state ? subItem.state : false }}">{{subItem.text}}
                                </li>
                            </ul>
                        </li>
                    </ul>
                </div>
            </div>
        </div>
    </ul>
</div>