form_field macros for WTForms, Flask, Bootstrap 3

macros.html

{% macro form_field(form, field, print_status=True) -%}
    {% set has_label = kwargs.pop('has_label', True) %}
    {% set placeholder = '' %}
    {% if not has_label %}
        {% set placeholder = field.label.text %}
    {% endif %}
    {% set field_status = '' %}
    {% if form.errors and (form.submitted or (form.is_submitted() and form.submit.data)) %}
        {# form.submit.data for support multiple forms on page #}
        {# form.submitted - manual control for form without button (ajax) #}
        {# If form has error, password field would be empty in repeat form
           and user need to retype this value.
           That is why we need to mark password field always as `error`,
           to draw user attention
         #}
        {# Simulate error for password field (because if form has errors this fields is empty after reloading page) #}
        {# Can reset this simulations with field.hide_error = True (need to sing in form) #}
        {% if field.type == 'PasswordField' and not field.hide_error %}
            {% set field_status = 'error' %}
            {% set field_errors = ['Please retype password'] %}
        {% else %}
            {% if field.errors %}
                {% set field_status = 'error' %}
            {% else %}
                {% set field_status = 'success' %}
            {% endif %}
        {% endif %}
    {% endif %}
    <div class="form-group {{ field_status }}">
         {% if has_label and field.label.text and 'BooleanField' not in field.type %}
            <label for="{{ field.id }}" class="control-label">
                {{ field.label.text }}{% if field.flags.required %} <span class="required">*</span>{% endif %}
            </label>
        {% endif %}
        <div class="controls">
            {% set class_ = kwargs.pop('class_', '') %}
            {% if 'BooleanField' in field.type %}
                <div class="checkbox">
                    <label for="{{ field.id }}">
                        {{ field(class_=class_, **kwargs) }}
                        {{ field.label.text | safe }}
                    </label>
                </div>
            {% elif 'RadioField' in field.type %}
                {% for value, label, checked in field.iter_choices() %}
                    <div class="radio">
                    {% if checked  %}
                        <label>
                            <input type="radio" name="{{ field.id }}" id="{{ field.id }}" value="{{ value }}"
                              checked="True">{{ label }}
                        </label>
                    {% else %}
                        <label>
                            <input type="radio" name="{{ field.id }}" id="{{ field.id }}" value="{{ value }}">{{ label }}
                        </label>
                    {% endif %}
                    </div>
                {% endfor %}
            {% else %}
                {% set class_ = class_ ~ ' form-control' %}
                {% set prepend = kwargs.pop('prepend', None) %}
                {% set append = kwargs.pop('append', None) %}
                {% if append or prepend %}
                    {% if append and prepend %}
                        <div class="input-group input-group-prepend input-group-append">
                            <span class="input-group-addon">{{ prepend | safe  }}</span>
                            {{ field(class_=class_, placeholder=placeholder, **kwargs) }}
                            <span class="input-group-addon">{{ append | safe }}</span>
                        </div>
                    {% elif prepend %}
                        <div class="input-group input-group-prepend">
                            <span class="input-group-addon">{{ prepend | safe  }}</span>
                            {{ field(class_=class_, placeholder=placeholder, **kwargs) }}
                        </div>
                    {% elif append %}
                        <div class="input-group input-group-append">
                            {{ field(class_=class_, placeholder=placeholder, **kwargs) }}
                            <span class="input-group-addon">{{ append | safe  }}</span>
                        </div>
                    {% endif %}
                {% else %}
                    {{ field(class_=class_, placeholder=placeholder, **kwargs) }}
                {% endif %}
            {% endif %}
            {% if field.description %}
                <p class="help-block">{{ field.description|safe }}</p>
            {% endif %}
            {% if print_status %}
                {% if field_status == 'error' %}
                    <p class="error">{{ field.errors|join('<br/>') or field_errors|join('<br/>') }}</p>
                {% elif  field_status == 'success' %}
                    <p class="success">Field is ok</p>
                {% endif %}
            {% endif %}
        </div>
    </div>
{%- endmacro %}

This is better than mine, I'm getting lost in too much if/else depending on field status. (disable/enable, hide/show, classes, rows.... ).