integer filter widget and integer range validator for symfony1.4

sfValidatorIntegerRange.class.php

<?php
/**
 * sfValidatorIntegerRange
 * @package symfony
 * @subpackage validator
 * @auther Hiromi Hishida<info@77-web.com>
 */
class sfValidatorIntegerRange extends sfValidatorBase
{
  protected function configure($options = array(), $messages = array())
  {
    $this->addMessage('invalid', 'The min value must be less than max value.');
    
    $this->addRequiredOption('from_validator');
    $this->addRequiredOption('to_validator');
    $this->addOption('from_field', 'from');
    $this->addOption('to_field', 'to');
  }
  
  protected function doClean($value)
  {
    $fromField = $this->getOption('from_field');
    $toField = $this->getOption('to_field');
    
    $value[$fromField] = $this->getOption('from_validator')->clean(isset($value[$fromField]) ? $value[$fromField] : null);
    $value[$toField] = $this->getOption('to_validator')->clean(isset($value[$toField]) ? $value[$toField] : null);
    
    if($value[$fromField] && $value[$toField])
    {
      $validator = new sfValidatorSchemaCompare($fromField, sfValidatorSchemaCompare::LESS_THAN_EQUAL, $toField, array('throw_global_error'=>true), array('invalid'=>$this->getMessage('invalid')));
      $validator->clean($value);
    }
    
    return $value;
  }
}

sfWidgetFormFilterInteger.class.php

<?php
/**
 * sfWidgetFormFilterInteger
 * @package symfony
 * @subpackage widget
 * @auther Hiromi Hishida<info@77-web.com>
 */
class sfWidgetFormFilterInteger extends sfWidgetForm
{

  public function configure($options = array(), $attributes = array())
  {
    $this->addOption('with_empty', true);
    $this->addOption('empty_label', 'is empty');
    $this->addOption('template', 'from %from_input% to %to_input%<br />%empty_checkbox% %empty_label%');
  }
  
  public function render($name, $value = null, $attributes = array(), $errors = array())
  {
    $values = array_merge(array('from'=>'', 'to'=>'', 'is_empty'=>false), is_array($value) ? $value : array());
    
    $from_input = $this->renderTag('input', array_merge(array('type'=>'text', 'size'=>5, 'id'=>$this->generateId($name), 'name'=>$name.'[from]', 'value'=>$values['from']), $attributes));
    $to_input = $this->renderTag('input', array_merge(array('type'=>'text', 'size'=>5, 'id'=>$this->generateId($name), 'name'=>$name.'[to]', 'value'=>$values['to']), $attributes));
    $empty_checkbox = $this->getOption('with_empty') ? $this->renderTag('input', array('type' => 'checkbox', 'name' => $name.'[is_empty]', 'checked' => $values['is_empty'] ? 'checked' : '')) : '';
    $empty_label = $this->getOption('with_empty') ? $this->renderContentTag('label', $this->translate($this->getOption('empty_label')), array('for' => $this->generateId($name.'[is_empty]'))) : '';
    
    return strtr($this->getOption('template'), array('%from_input%'=>$from_input, '%to_input%'=>$to_input, '%empty_checkbox%'=>$empty_checkbox, '%empty_label%'=>$empty_label));
  }
}