sfWidgetFormSelectDoubleList

### my schema.yml

Codecs:
  tableName: codecs
  columns:
    ...
  relations:
    DetalhamentoSip:
      class: DetalhamentoSip
      refClass: DetalhamentoSipCodecs
      local: codecs_id
      foreign: detalhamento_sip_id

DetalhamentoSipCodecs:
  tableName: detalhamento_sip_codecs
  columns:
    id:
      type: integer(4)
      primary: true
      autoincrement: true
    codecs_id:
      type: integer(4)
    detalhamento_sip_id:
      type: integer(4)

DetalhamentoSip:
  tableName: detalhamento_sip
  columns:
    ...
  relations:
     Codecs:
      class: Codecs
      refClass: DetalhamentoSipCodecs
      local: detalhamento_sip_id
      foreign: codecs_id

#### my form:

<?php

/**
 * DetalhamentoSip form.
 *
 * @package    neuwald
 * @subpackage form
 * @author     Your name here
 * @version    SVN: $Id: sfDoctrineFormTemplate.php 23810 2009-11-12 11:07:44Z Kris.Wallsmith $
 */
class DetalhamentoSipForm extends BaseDetalhamentoSipForm
{
  public function configure()
  {
      $this->setWidgets(array(
      'id'                  => new sfWidgetFormInputHidden(),
      'nome_do_dispositivo' => new sfWidgetFormInputText(),
      'habilitado'          => new sfWidgetFormInputCheckbox(),
      'type'                => new sfWidgetFormChoice(array('choices' => array('USER' => 'USER', 'PEER' => 'PEER', 'FRIEND' => 'FRIEND'))),
      'username'            => new sfWidgetFormInputText(),
      'host'                => new sfWidgetFormInputText(),
      'caller_id'           => new sfWidgetFormInputText(),
      'secret'              => new sfWidgetFormInputText(),
      'context'             => new sfWidgetFormInputText(),
   'codecs'              => $this->widgetSchema['codecs_list']->setOption('renderer_class', 'sfWidgetFormSelectDoubleList'),
      'dtmf_mode'           => new sfWidgetFormChoice(array('choices' => array('rfc2833' => 'rfc2833', 'info' => 'info', 'inband' => 'inband', 'auto' => 'auto'))),
      'can_reinvite'        => new sfWidgetFormChoice(array('choices' => array('yes' => 'yes', 'no' => 'no', 'nonat' => 'nonat'))),
      'nat'                 => new sfWidgetFormInputCheckbox(),
      'qualify'             => new sfWidgetFormInputCheckbox(),
      'from_domain'         => new sfWidgetFormInputText(),
      'from_user'           => new sfWidgetFormInputText(),
      'port'                => new sfWidgetFormInputText(),
      'call_limit'          => new sfWidgetFormInputText(),
      'allow_transfer'      => new sfWidgetFormInputCheckbox(),
      'account_code'        => new sfWidgetFormInputText(),
      'in_secure'           => new sfWidgetFormChoice(array('choices' => array('no' => 'no', 'invite' => 'invite', 'port' => 'port', 'port, invite' => 'port, invite'))),
      'progress_in_band'    => new sfWidgetFormChoice(array('choices' => array('no' => 'no', 'yes' => 'yes', 'never' => 'never'))),
      'promisc_redirect'    => new sfWidgetFormInputCheckbox(),
      'user_client_code'    => new sfWidgetFormInputCheckbox(),
      'set_var'             => new sfWidgetFormInputText(),
      'mail_box'            => new sfWidgetFormInputText(),
      'video_support'       => new sfWidgetFormInputCheckbox(),
      'language'            => new sfWidgetFormChoice(array('choices' => array('en' => 'en', 'pt_br' => 'pt_br'))),
      'md5_secret'          => new sfWidgetFormInputText(),
    ));


    $this->setValidators(array(
      'id'                  => new sfValidatorChoice(array('choices' => array($this->getObject()->get('id')), 'empty_value' => $this->getObject()->get('id'), 'required' => false)),
      'nome_do_dispositivo' => new sfValidatorRegex(array('max_length' => 32, 'pattern' => '/^[a-zA-Z0-9_-]+$/', 'required' => true)),
      'habilitado'          => new sfValidatorBoolean(array('required' => false)),
      'type'                => new sfValidatorChoice(array('choices' => array(0 => 'USER', 1 => 'PEER', 2 => 'FRIEND'), 'required' => true)),
      'username'            => new sfValidatorRegex(array('max_length' => 32, 'pattern' => '/^[a-zA-Z0-9_-]+$/', 'required' => false)),
      'host'                => new sfValidatorString(array('max_length' => 128, 'required' => false)),
      'caller_id'           => new sfValidatorString(array('max_length' => 32, 'required' => false)),
      'secret'              => new sfValidatorString(array('max_length' => 32, 'required' => false)),
      'context'             => new sfValidatorRegex(array('max_length' => 32, 'pattern' => '/^[a-zA-Z0-9_-]+$/', 'required' => true)),
   'codecs'              => new sfValidatorDoctrineChoice(array('model' => 'Codecs', 'multiple' => true, 'required' => false)),
      'dtmf_mode'           => new sfValidatorChoice(array('choices' => array(0 => 'rfc2833', 1 => 'info', 2 => 'inband', 3 => 'auto'), 'required' => false)),
      'can_reinvite'        => new sfValidatorChoice(array('choices' => array(0 => 'yes', 1 => 'no', 2 => 'nonat'), 'required' => false)),
      'nat'                 => new sfValidatorBoolean(array('required' => false)),
      'qualify'             => new sfValidatorBoolean(array('required' => false)),
      'from_domain'         => new sfValidatorString(array('max_length' => 128, 'required' => false)),
      'from_user'           => new sfValidatorString(array('max_length' => 128, 'required' => false)),
      'port'                => new sfValidatorInteger(array('required' => false)),
      'call_limit'          => new sfValidatorInteger(array('required' => false)),
      'allow_transfer'      => new sfValidatorBoolean(array('required' => false)),
      'account_code'        => new sfValidatorRegex(array('max_length' => 8, 'pattern' => '/^[a-zA-Z0-9_-]+$/', 'required' => false)),
      'in_secure'           => new sfValidatorChoice(array('choices' => array(0 => 'no', 1 => 'invite', 2 => 'port', 3 => 'port, invite'), 'required' => false)),
      'progress_in_band'    => new sfValidatorChoice(array('choices' => array(0 => 'no', 1 => 'yes', 2 => 'never'), 'required' => false)),
      'promisc_redirect'    => new sfValidatorBoolean(array('required' => false)),
      'user_client_code'    => new sfValidatorBoolean(array('required' => false)),
      'set_var'             => new sfValidatorString(array('max_length' => 64, 'required' => false)),
      'mail_box'            => new sfValidatorString(array('max_length' => 32, 'required' => false)),
      'video_support'       => new sfValidatorBoolean(array('required' => false)),
      'language'            => new sfValidatorChoice(array('choices' => array(0 => 'en', 1 => 'pt_br'), 'required' => false)),
      'md5_secret'          => new sfValidatorString(array('max_length' => 32, 'required' => false)),
    ));

    $this->widgetSchema->setNameFormat('detalhamento_sip[%s]');

    $this->errorSchema = new sfValidatorErrorSchema($this->validatorSchema);

    $this->setupInheritance();
  }
}