_question.html.twig

{#  ./src/Acme/DemoBundle/Resources/view/Survey/_question.html.twig  #}
{#
Template for rendering a radio button
#}
<div class="question">
    {{ form_errors(widget) }}
    {{ form_label(widget, label, {'attr': {'class':'question_text'} }) }}
    {{ form_widget(widget) }}
</div>

_question_radio.html.twig

{#  ./src/Acme/DemoBundle/Resources/view/Survey/_question_radio.html.twig  #}
{#
Used as a "form_theme"
This customizes the choice_widget when expanded by wrapping it in a span tag,
and rendering as "label" "field" instead of "field" "label"
#}
{% block choice_widget %}
{% spaceless %}
    {% if expanded %}
        <div {{ block('widget_container_attributes') }}>
        {% for child in form %}
            <span class="radio_choice">
                {{ form_label(child) }}
                {{ form_widget(child) }}
            </span>
        {% endfor %}
        </div>
    {% else %}
    <select {{ block('widget_attributes') }}{% if multiple %} multiple="multiple"{% endif %}>
        {% if empty_value is not none %}
            <option value="">{{ empty_value|trans }}</option>
        {% endif %}
        {% if preferred_choices|length > 0 %}
            {% set options = preferred_choices %}
            {{ block('widget_choice_options') }}
            {% if choices|length > 0 %}
                <option disabled="disabled">{{ separator }}</option>
            {% endif %}
        {% endif %}
        {% set options = choices %}
        {{ block('widget_choice_options') }}
    </select>
    {% endif %}
{% endspaceless %}
{% endblock choice_widget %}

_render_macros.html.twig

{#  ./src/Acme/DemoBundle/Resources/view/Survey/_render_macros.html.twig  #}
{#
Renders a radio button input with its question label text. Each widget is
rendered with a special form_template explicitly defined by the file included
with the form_theme code block.

@param object widget        Usually the form.widget_name object for the widget
                            you want to render.
@param string label         The question text to use as the widget's label.
#}
{% macro question_radio(widget, label) %}
{% form_theme widget 'AcmeDemoBundle:Survey:_question_radio.html.twig' %}
{% include 'AcmeDemoBundle:Survey:_question.html.twig' %}
{% endmacro %}

page_1.html.twig

{#  ./src/Acme/DemoBundle/Resources/view/Survey/page_1.html.twig  #}
{% extends "AcmeDemoBundle:Survey:survey.html.twig" %}
{% import "AcmeDemoBundle:Survey:_render_macros.html.twig" as render %}

{% block example_form %}
<form action="{{ post_url }}" id="example_form" method="post" {{ form_enctype(form) }}>
    {{ form_errors(form) }}

    <p>Please answer the following questions.</p>

    {{ render.question_radio(form.question_1, 'Have you taken the BLOCWORK exam?') }}

    {{ render.question_radio(form.question_2, 'Have you received your degree yet?') }}

    <button type="submit">Submit Answers</button>

    {{ form_rest(form) }}
</form>
{% endblock %}