Immutable tabs form type

To get tabs into a block of page or admin form.

Requirements

• https://github.com/sonata-project/SonataCoreBundle (deprecated, prefer repo below)
• https://github.com/sonata-project/form-extensions

Implementation

It extends the Symfony\Component\Form\AbstractType

And use a specific widget defined in SonataHelpersBundle/Ressources/views/From/form_admin_fields.html.twig so you must add it to your admin sonata config

sonata_admin:
    admin_services:
        app.admin.item:
            templates:
                form: ['SonataHelpersBundle:Form:form_admin_fields.html.twig']

Don't forget to add the css SonataHelpersBundle/Ressources/public/css/immutableTabsType.css to have cute tabs

An array of tabs must be set key : key of the tab that will be used to record value in the database value : label of the tab that will be displayed

This array must be set in the options array with the key 'tabs'

Example of page block with an immutableTabsType

/**
 * Class TitleBlockService.
 */
class TitleBlockService implements BlockServiceInterface
{
    // Setting of tabs
    const TABS = [
        'fr' => 'français',
        'en' => 'anglais',
        'es' => 'espagnol',
    ];

    /**
     * {[@inheritdoc](https://github.com/inheritdoc)}
     */
    public function configureSettings(OptionsResolver $resolver)
    {
        parent::configureSettings($resolver);

        // Add all tab keys
        foreach (self::TABS as $tabKey => $tab) {
            $resolver->setDefined($tabKey);
        }

        $resolver->setDefaults([
            'template' => 'SonataBlockBundle:Block:block_core_text.html.twig',
        ]);
    }

    /**
     * {[@inheritdoc](https://github.com/inheritdoc)}
     */
    public function buildEditForm(FormMapper $formMapper, BlockInterface $block)
    {
        $formMapper->add('settings', ImmutableTabsType::class, [
            'keys'   => [
                ['title', TextType::class, ['label' => 'Titre']],
            ],
            'label' => false,
            'tabs'  => self::TABS,
        ]);
    }

    /**
     * {[@inheritdoc](https://github.com/inheritdoc)}
     */
    public function validateBlock(ErrorElement $errorElement, BlockInterface $block)
    {
        foreach (self::TABS as $tabKEy => $tab) {
            $errorElement
                ->with(sprintf('settings[%s][title]', $tabKEy))
                ->addConstraint(new Length(['max' => 255]))
                ->end()
            ;
        }
    }
...

Data of immutableTabsType

data are a json with the key of the immutableTabsType then the key of tabs as sub-keys

Exemple of data

{
  "settings": {
    "fr": {
      "title": "Titre fr"
    },
    "en": {
      "title": "Titre en"
    },
    "es": {
      "title": "Titre es"
    }
  }
}