symfony 2- fill up the form in controller

Question

I have a form and i would like to fill 1 field (fromID) in controller (i used to do it setFromId method), but I receives error. There is my code:

 public function newAction()
{
    $entity = new PrivateMessage();

    $user = $this->container->get('security.context')->getToken()->getUser();
    $entity->setFromId($user);
    $form   = $this->createForm(new PrivateMessageType(), $entity);
    $form->setData($entity);


    return $this->render('AcmeStoreBundle:PrivateMessage:new.html.twig', array(
        'entity' => $entity,
        'form'   => $form->createView(),
    ));
}

do i missed something? @edit: i forgot to add that it's working when field fromID is avaliable in form. but i don't want to let user change it.

And this is part of PrivateMessage entity:

class PrivateMessage

{/** * @var integer * * @ORM\Column(name="id", type="integer") * @ORM\Id * @ORM\GeneratedValue(strategy="AUTO") */ private $id;

/**
 *
 * @ORM\ManyToOne(targetEntity="User", inversedBy="pm_to")
 * @ORM\JoinColumns({
 *   @ORM\JoinColumn(name="to_id", referencedColumnName="id", nullable=false)
 * })
 */
private $toID;

/**
 *
 * @ORM\ManyToOne(targetEntity="User", inversedBy="pm_from")
 * @ORM\JoinColumns({
 *   @ORM\JoinColumn(name="from_id", referencedColumnName="id", nullable=false)
 * })
 */
private $fromID;

 function __construct()
{
    $this->setOpened(false);
    $this->setRecipientDelete(false);
    $this->setSenderDelete(false);
}
/**
 * @ORM\PrePersist
 */
public function setFromIdValue()
{
    $this->fromID= $this->getFromId();
}

/**
 * Set fromID
 *
 * @param \Acme\Bundle\Entity\User $fromId
 * @return PrivateMessage
 */
public function setFromId(\Acme\StoreBundle\Entity\User $fromId = null)
{
    $this->fromID = $fromId;

    return $this;
}

/**
 * Get fromID
 *
 * @return \Acme\StoreBundle\Entity\User 
 */
public function getFromId()
{
    return $this->fromID;
}

Answer 1

There is better place than controller to set (even override) your form fields - event listener. You should write listener for prePersist doctrine event and set/update field. Please look at example from docs: http://symfony.com/doc/current/cookbook/doctrine/event_listeners_subscribers.html#configuring-the-listener-subscriber