File: app/Views/Form/bootstrap_3_horizontal_layout.html.twig

{% extends "bootstrap_3_layout.html.twig" %}

{% block form_start -%}
    {% set attr = attr|merge({class: (attr.class|default('') ~ ' form-horizontal')|trim}) %}
    {{- parent() -}}
{%- endblock form_start %}

{# Labels #}

{% block form_label -%}
{% spaceless %}
    {% if label is sameas(false) %}
        <div class="{{ block('form_label_class') }}"></div>
    {% else %}
        {% set label_attr = label_attr|merge({class: (label_attr.class|default('') ~ ' ' ~ block('form_label_class'))|trim}) %}
        {{- parent() -}}
    {% endif %}
{% endspaceless %}
{%- endblock form_label %}

{% block form_label_class -%}
col-sm-2
{%- endblock form_label_class %}

{# Rows #}

{% block form_row -%}
{% spaceless %}
    <div class="form-group{% if (not compound or force_error|default(false)) and not valid %} has-error{% endif %}">
        {{ form_label(form) }}
        <div class="{{ block('form_group_class') }}">
            {{ form_widget(form) }}
            {{ form_errors(form) }}
        </div>
    </div>
{% endspaceless %}
{%- endblock form_row %}

{% block checkbox_row -%}
    {{- block('checkbox_radio_row') -}}
{%- endblock checkbox_row %}

{% block radio_row -%}
    {{- block('checkbox_radio_row') -}}
{%- endblock radio_row %}

{% block checkbox_radio_row -%}
{% spaceless %}
    <div class="form-group{% if not valid %} has-error{% endif %}">
        <div class="{{ block('form_label_class') }}"></div>
        <div class="{{ block('form_group_class') }}">
            {{ form_widget(form) }}
            {{ form_errors(form) }}
        </div>
    </div>
{% endspaceless %}
{%- endblock checkbox_radio_row %}

{% block submit_row -%}
{% spaceless %}
    <div class="form-group">
        <div class="{{ block('form_label_class') }}"></div>
        <div class="{{ block('form_group_class') }}">
            {{ form_widget(form) }}
        </div>
    </div>
{% endspaceless %}
{% endblock submit_row %}

{% block form_group_class -%}
col-sm-6
{%- endblock form_group_class %}