1. Installation

The easiest way to install form-extensions is to require it with Composer:

composer require sonata-project/form-extensions

Alternatively, you could add a dependency into your composer.json file directly.

Now, enable the bundle in bundles.php file:

// config/bundles.php

return [
    // ...
    Sonata\Form\Bridge\Symfony\Bundle\SonataFormBundle::class => ['all' => true],

2. Configuration

When using bootstrap, some widgets need to be wrapped in a special div element depending on whether you are using the standard style for your forms or the horizontal style.

If you are using the horizontal style, you will need to configure the corresponding configuration node accordingly:

# config/packages/sonata_form.yaml

    form_type: horizontal

Please note that if you are using the admin bundle, this is actually optional: The core bundle extension will detect if the configuration node that deals with the form style in the admin bundle is set and will configure the core bundle for you.