{% if locales|length > 1 %}
    {% set route_params = app.request.attributes.get('_route_params') %}
    {% set route_params = route_params|merge(app.request.query.all) %}

    <li class="dropdown language">
        <a href="#language" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">
            {{ app.request.attributes.get('_locale') }}
            <span class="caret"></span>
        </a>
        <ul class="dropdown-menu" role="menu">
        {% for locale in locales %}
            <li class="{% if app.request.attributes.get('_locale') == locale %} active{% endif %}{% if loop.first %} first{% endif %}{% if loop.last %} last{% endif %}">
                <a href="{{ path(route, route_params | merge({'_locale': locale})) }}">{{ locale }}</a>
            </li>
        {% endfor %}
        </ul>
    </li>
{% endif %}