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<?php
/**
* @package Joomla.Platform
* @subpackage Form
*
* @copyright Copyright (C) 2005 - 2011 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
defined('JPATH_PLATFORM') or die;
RokCommon_Form_Helper::loadFieldClass('list');
/**
* Form Field class for the Joomla Platform.
* Provides a select list of integers with specified first, last and step values.
*
* @package Joomla.Platform
* @subpackage Form
* @since 11.1
*/
class RokCommon_Form_Field_Integer extends RokCommon_Form_Field_List
{
/**
* The form field type.
*
* @var string
* @since 11.1
*/
protected $type = 'Integer';
/**
* Method to get the field options.
*
* @return array The field option objects.
*
* @since 11.1
*/
protected function getOptions()
{
// Initialize variables.
$options = array();
// Initialize some field attributes.
$first = (int) $this->element['first'];
$last = (int) $this->element['last'];
$step = (int) $this->element['step'];
// Sanity checks.
if ($step == 0)
{
// Step of 0 will create an endless loop.
return $options;
}
elseif ($first < $last && $step < 0)
{
// A negative step will never reach the last number.
return $options;
}
elseif ($first > $last && $step > 0)
{
// A position step will never reach the last number.
return $options;
}
// Build the options array.
for ($i = $first; $i <= $last; $i += $step)
{
$options[] = RokCommon_HTML_SelectList::option($i);
}
// Merge any additional options in the XML definition.
$options = array_merge(parent::getOptions(), $options);
return $options;
}
}