How to dynamically add translations to your I18N object using SonataAdminBundle & DoctrineExtensions

admin.xml

<?xml version="1.0" ?>

<container xmlns="http://symfony.com/schema/dic/services"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">

    <services>
        <service id="demo.book.admin" class="Demo\BookBundle\Admin\BookAdmin">
            <tag name="sonata.admin" manager_type="orm" group="General" label="Books"/>
            <argument/>
            <argument>Demo\BookBundle\Entity\Book</argument>
            <argument></argument>
        </service>

        <service id="demo.book.admin.translation" class="Demo\BookBundle\Admin\BookTranslationAdmin">
            <tag name="sonata.admin" manager_type="orm" group="Général" label="Book translation"/>
            <argument/>
            <argument>Demo\BookBundle\Entity\BookTranslation</argument>
            <argument></argument>
        </service>
    </services>
</container>

Book.php

<?php
namespace Demo\BookBundle\Entity;

use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
use Gedmo\Mapping\Annotation as Gedmo;

/**
 * Demo\BookBundle\Entity\Book
 *
 * @ORM\Entity()
 * @ORM\Table()
 * @Gedmo\TranslationEntity(class="Demo\BookBundle\Entity\BookTranslation")
 *
 */
class Book
{
    /**
     * @ORM\Id
     * @ORM\Column(type="integer")
     * @ORM\generatedValue(strategy="AUTO")
     */
    protected $id;

    /**
     * @var string $name
     * @ORM\Column(type="string",length=255, unique=true)
     */
    protected $name;

    /**
     * @var string $description
     * @Gedmo\Translatable
     * @ORM\Column(type="text", nullable=true)
     */
    protected $description;

    /**
     * @ORM\OneToMany(targetEntity="BookTranslation", mappedBy="object", cascade={"persist", "remove"})
     */
    private $translations;

    public function __construct ()
    {
        $this->translations = new ArrayCollection();
    }

    /**
     * Get id
     *
     * @return integer $id
     */
    public function getId ()
    {
        return $this->id;
    }

    /**
     * Gets translation
     */
    public function getTranslations()
    {
        return $this->translations;
    }

    public function addTranslations(BookTranslation $t)
    {
        $this->translations[] = $t;
        $t->setObject($this);
    }

    public function setTranslations($translations)
    {
        $this->translations = $translations;
    }

    /**
     * Set name
     *
     * @param string $name
     */
    public function setName ($name)
    {
        $this->name = $name;
    }

    /**
     * Get name
     *
     * @return string $name
     */
    public function getName ()
    {
        return $this->name;
    }

    /**
     * Set description
     *
     * @param text $description
     */
    public function setDescription ($description)
    {
        $this->description = $description;
    }

    /**
     * Get description
     *
     * @return text $description
     */
    public function getDescription ()
    {
        return $this->description;
    }
}

BookAdmin.php

<?php
namespace Demo\BookBundle\Admin;

use Sonata\AdminBundle\Admin\Admin;
use Sonata\AdminBundle\Form\FormMapper;
use Sonata\AdminBundle\Datagrid\DatagridMapper;
use Sonata\AdminBundle\Datagrid\ListMapper;


/**
 * Book Admin
 */
class BookAdmin extends Admin
{
    /**
     * Configure the list
     *
     * @param \Sonata\AdminBundle\Datagrid\ListMapper $list list
     */
    protected function configureListFields(ListMapper $list)
    {
        $list
            ->addIdentifier('name', null, array('label' => 'Nom'))
            ->add('_action', 'actions', array(
                'actions' => array(
                    'edit' => array()
                )
            ));
    }

    /**
     * Configure the form
     *
     * @param FormMapper $formMapper formMapper
     */
    public function configureFormFields(FormMapper $formMapper)
    {
        $formMapper
            ->add('name', null, array('label' => 'Name'))
            ->add('translations', 'sonata_type_collection', array(), array(
                    'edit' => 'inline',
                    'inline' => 'table',
                    'sortable'  => 'position'
                ));
    }
}

BookTranslation.php

<?php
namespace Demo\BookBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Gedmo\Translatable\Entity\MappedSuperclass\AbstractPersonalTranslation;

/**
 * @ORM\Entity
 * @ORM\Table(name="book_translations",
 *     uniqueConstraints={@ORM\UniqueConstraint(name="lookup_unique_idx", columns={
 *         "locale", "object_id", "field"
 *     })}
 * )
 */
class BookTranslation extends AbstractPersonalTranslation
{
    /**
     * Convinient constructor
     *
     * @param string $locale
     * @param string $field
     * @param string $value
     */
    public function __construct($locale = null, $field = null, $value = null)
    {
        $this->setLocale($locale);
        $this->setField($field);
        $this->setContent($value);
    }

    /**
     * @ORM\ManyToOne(targetEntity="Book", inversedBy="translations")
     * @ORM\JoinColumn(name="object_id", referencedColumnName="id", onDelete="CASCADE")
     */
    protected $object;
}

BookTranslationAdmin.php

<?php
namespace Demo\BookBundle\Admin;

use Sonata\AdminBundle\Admin\Admin;
use Sonata\AdminBundle\Form\FormMapper;
use Sonata\AdminBundle\Datagrid\DatagridMapper;
use Sonata\AdminBundle\Datagrid\ListMapper;


/**
 * BookTranslation Admin
 */
class BookTranslationAdmin extends Admin
{

    /**
     * Configure the list
     *
     * @param \Sonata\AdminBundle\Datagrid\ListMapper $list list
     */
    protected function configureListFields(ListMapper $list)
    {
        $list
            ->addIdentifier('field', null, array('label' => 'Champ'))
            ->add('content', null, array('label' => 'Traduction'))
            ->add('locale', null, array('label' => 'Actif'))

            // add custom action links
            ->add('_action', 'actions', array(
                'actions' => array(
                    'edit' => array()
                )
            ));
    }

    /**
     * Configure the form
     *
     * @param FormMapper $formMapper formMapper
     */
    public function configureFormFields(FormMapper $formMapper)
    {
        $formMapper
            ->add('field', null, array('label' => 'Field'))
            ->add('content', null, array('label' => 'Translation'))
            ->add('locale', null, array('label' => 'locale'));
    }

}

Hello Tristan,

I'm trying to implement this translation example with SonataAdminBundle & DoctrineExtensions, but when I run the create action form, the database translation field object_id is empty. All other fields are filled correctly on database!

My database schema:

CREATE TABLE Book (
id int(11) NOT NULL AUTO_INCREMENT,
name varchar(255) NOT NULL,
description longtext,
PRIMARY KEY (id),
UNIQUE KEY UNIQ_6BD70C0F5E237E06 (name)
) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=latin1

CREATE TABLE book_translations (
id int(11) NOT NULL AUTO_INCREMENT,
object_id int(11) DEFAULT NULL,
locale varchar(8) COLLATE utf8_unicode_ci NOT NULL,
field varchar(32) COLLATE utf8_unicode_ci NOT NULL,
content longtext COLLATE utf8_unicode_ci,
PRIMARY KEY (id),
UNIQUE KEY lookup_unique_idx (locale,object_id,field),
KEY IDX_9F5610DF232D562B (object_id),
CONSTRAINT FK_9F5610DF232D562B FOREIGN KEY (object_id) REFERENCES Book (id) ON DELETE CASCADE
) ENGINE=InnoDB AUTO_INCREMENT=15 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci

Can you give me a help? I have the same source!!!

Thanks in advance, Luis Miguens