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<?php
/* @package Joomla
 * @copyright Copyright (C) Open Source Matters. All rights reserved.
 * @license http://www.gnu.org/copyleft/gpl.html GNU/GPL, see LICENSE.php
 * @extension Phoca Extension
 * @copyright Copyright (C) Jan Pavelka www.phoca.cz
 * @license http://www.gnu.org/copyleft/gpl.html GNU/GPL
 */
defined('_JEXEC') or die();

if (! class_exists('PhocacartCategory')) {
    require_once(
JPATH_ADMINISTRATOR.'/components/com_phocacart/libraries/phocacart/category/category.php');
}

class JFormFieldPhocaDiscountCategory extends JFormField
{
	protected $type 		= 'PhocaDiscountCategory';

	protected function getInput() {
		
		$db = JFactory::getDBO();

       //build the list of categories
		$query = 'SELECT a.title AS text, a.id AS value, a.parent_id as
parentid'
		. ' FROM #__phocacart_categories AS a'
		. ' WHERE a.published = 1'
		. ' ORDER BY a.ordering';
		$db->setQuery( $query );
		$data = $db->loadObjectList();
		
		$id 	= $this->form->getValue('id');
		$catId	= -1;
		
		
		$required	= ((string) $this->element['required'] ==
'true') ? TRUE : FALSE;
		$javascript = '';
		$tree = array();
		$text = '';
		$tree = PhocacartCategory::CategoryTreeOption($data, $tree, 0, $text,
$catId);
		

		$relatedOption = array();
		if ((int)$id > 0) {
			$relatedOption	= PhocacartDiscountCart::getDiscountCatsById((int)$id);
		}
		
		
		return Joomla\CMS\HTML\HTMLHelper::_('select.genericlist',
$tree, $this->name, 'class="inputbox" size="4"
multiple="multiple"'. $javascript, 'value',
'text', $relatedOption, $id);
	}
}
?>