<?php

namespace Symfony\Components\Form;

use Symfony\Components\Form\ValueTransformer\PercentToLocalizedStringTransformer;

/*
 * This file is part of the symfony package.
 * (c) Fabien Potencier <fabien.potencier@symfony-project.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

/**
 * A localized field for entering percentage values.
 *
 * @author Bernhard Schussek <bernhard.schussek@symfony-project.com>
 */
class PercentField extends NumberField
{
  const FRACTIONAL = 'fractional';
  const INTEGER = 'integer';

  /**
   * {@inheritDoc}
   */
  protected function configure()
  {
    $this->addOption('precision', 0);
    $this->addOption('type', self::FRACTIONAL);

    $this->setValueTransformer(new PercentToLocalizedStringTransformer(array(
      'precision' => $this->getOption('precision'),
      'type' => $this->getOption('type'),
    )));
  }

  /**
   * {@inheritDoc}
   */
  public function render(array $attributes = array())
  {
    return parent::render($attributes).' %';
  }
}