{% macro render_field(field, prefix=None, suffix=None, layout=True, label=True) %}
    {% if field.type == 'HiddenField' %}
    {{ field(**kwargs) }}
    {% else %}
        {% if layout %}
        <div class="form-group{% if field.errors %} has-error{% endif %}">
            {% if field.type == 'BooleanField' %}
            <div class="col-xs-3"></div>
            {% elif label %}
            {{ field.label(class_='col-xs-3 control-label') }}
            {% endif %}
            <div class="col-xs-9">
        {% endif %}

        {{ render_field_inner(field, prefix, suffix, label=label, **kwargs) }}

        {% if layout %}
            </div>
        </div>
        {% endif %}
    {% endif %}
{% endmacro %}

{% macro render_field_inner(field, prefix=None, suffix=None, label=True) %}
    {% if field.type == 'BooleanField' %}<div class="checkbox"><label for="{{ field.id }}">{% endif %}
    {% if prefix or suffix %}<div class="input-group">{% endif %}
        {% if prefix %}<span class="input-group-addon">{{ prefix }}</span>{% endif %}
        {% if field.type == 'BooleanField' %}
        {{ field(**kwargs) }} {% if label %}{{ field.label.text }}{% endif %}
        {% else %}
        {{ field(class_='form-control', **kwargs) }}
        {% endif %}
        {% if suffix %}<span class="input-group-addon">{{ suffix }}</span>{% endif %}
    {% if prefix or suffix %}</div>{% endif %}
    {% if field.description %}
        <span class="help-block">{{ field.description }}</span>
    {% endif %}
    {% if field.errors %}
        {% for error in field.errors %}
            <span class="help-block">{{ error }}</span>
        {% endfor %}
    {% endif %}
    {% if field.type == 'BooleanField' %}</label></div>{% endif %}
{% endmacro %}

{% macro render_submit(label='Submit', class_='btn btn-primary', layout=True) %}
{% if layout %}
<div class="form-group">
    <div class="col-xs-9 col-xs-offset-3">
{% endif %}
        <button type="submit" class="{{ class_ }}">{{ label }}</button>
{% if layout %}
    </div>
</div>
{% endif %}
{% endmacro %}