{% set types = {
notice: 'info',
success: 'success',
error: 'danger',
alert: 'warning'
} %}

{% if translation_domain is not defined %}
    {% set translation_domain = null %}
{% endif %}

{% if close_button is not defined %}
    {% set close_button = true %}
{% endif %}

{% for type, messages in app.flashes %}
    {% for message in messages %}
        {% if types[type] is defined %}
            <div class="alert alert-{{ types[type] }}">
                {% if close_button %}
                    <button type="button" class="close" data-dismiss="alert">&times;</button>
                {% endif %}
                {{ message }}
            </div>
        {% endif %}
    {% endfor %}
{% endfor %}