This is part of the (sexy-field-bundle)[https://github.com/dionsnoeijen/sexy-field-bundle] for Symfony. It adds support for rendering out the forms for sections. It's also required by the sexy-field-api component.

Rendering an 'edit' form can be done as follows:

{% set form = sectionForm(section, {slug:formSlug}) %}

Omit the slug parameter for a create form.

After that, you can refer to the (Symfony form documentation)[http://symfony.com/doc/current/forms.html]

{{ form_start(form) }}
<div class="row">
    <div class="col-md-12">
        {{ form_errors(form) }}
    </div>
</div>
<div class="row">
    <div class="col-md-10">
        {{ form_widget(form) }}
    </div>
</div>
{{ form_end(form) }}