Symfony2 Embedded Objects

Question

I have user and phone objects with OneToMany relationships between them.

My custom object:

namespace Project\UserBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;

/**
 * Project\UserBundle\Entity\User
 *
 * @ORM\Table(name="user")
 * @ORM\Entity
 */
class User
{
    /* ..... */

    /**
     * @var Doctrine\Common\Collections\ArrayCollection
     *
     * @ORM\OneToMany(targetEntity="Phone", mappedBy="user")
     */
    private $phone;

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

   /**
     * Add phone
     *
     * @param Project\UserBundle\Entity\Phone $phone
     */
    public function addPhone(\Project\UserBundle\Entity\Phone $phone)
    {
        $this->phone[] = $phone;
    }

    /**
     * Get phone
     *
     * @return Doctrine\Common\Collections\Collection 
     */
    public function getPhone()
    {
        return $this->phone;
    }

    /* ..... */

}

And my Phone object:

namespace Project\UserBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * Project\UserBundle\Entity\Phone
 *
 * @ORM\Table(name="user_phone")
 * @ORM\Entity
 */
class Phone
{
    /* ..... */

    /**
     * @ORM\ManyToOne(targetEntity="User", inversedBy="phone")
     * @ORM\JoinColumn(name="user_id", referencedColumnName="id")
     */
    private $user;

    /**
     * @var string $number
     *
     * @ORM\Column(name="number", type="string", length=128)
     */
    private $number;

    /**
     * Set user
     *
     * @param Project\UserBundle\Entity\User $user
     */
    public function setUser(\Project\UserBundle\Entity\User $user)
    {
        $this->user = $user;
    }

    /**
     * Get user
     *
     * @return Project\UserBundle\Entity\User 
     */
    public function getUser()
    {
        return $this->user;
    }

    /* ..... */
}

I deleted part of the code to make it a little short, I have an Id field and additional fields related to objects.

In my controller, I do this:

public function showFormAction($entity)
{
    /* ..... */
    $user  = new User();
    $phone = new Phone();
    $user->addPhone($phone);

    $form = $this->createForm(new UserRegister(), $user);
    /* ..... */
}

In my form class:

class UserRegister extends AbstractType
{
    public function buildForm(FormBuilder $builder, array $options)
    {
        $builder->add('email', 'text')
                ->add('password', 'repeated', array(
                          'type' => 'password',
                          'invalid_message' => 'The password fields must match.',
                          'options' => array('label' => 'Password'),
                          'error_bubbling' => false)
                     )
                ->add('first_name', 'text')
                ->add('last_name', 'text')
                ->add('phone', 'text' );
    }

    public function getName()
    {
        return 'register';
    }

    public function getDefaultOptions(array $options)
    {
        return array(
            'data_class' => 'Project\UserBundle\Entity\User',
        );
    }

}

And in my branch template:

<div>
    {{ form_errors(form.phone) }}
    {{ form_label(form.phone, null, { 'attr': {'class': 'span-3'} } ) }}
    {{ form_widget(form.phone, { 'attr': {'class': 'text'} } ) }}
</div>

What I'm trying to do basically is to allow the user to have multiple phone numbers, therefore, to have OneToMany relationship between the user and the phone. In my form, I want to show the "number" field of the "Phone" object in my form, and then add a separate phone record to the appropriate user.

Currently, with the code above, the form is a render, but shows:

"Doctrine\Common\Collections\ArrayCollection @0000000062cf59cf00000000e32fc883" "".

"" "" Twig_Runtime_Error " " 500 ". " form.phone.number", Phone, :

"" " " Symfony\Component\Form\FormView " "

"phone" "entity" , Entity, " ".

, , - , , , , . , , , User, User.

Answer 1

/**
 * @var Doctrine\Common\Collections\ArrayCollection
 *
 * @ORM\OneToMany(targetEntity="Phone", mappedBy="user", cascade={"persist"})
 */
private $phone;

Symfony Embed-Form OneToMany cascade = { "persist" }

Answer 2

fisplaying "Doctrine\Common\Collections\ArrayCollection @0000000062cf59cf00000000e32fc883",   $ - > Get ( '') → ( ''); , ...