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/home/develito/www/libraries/syw/fields/k2category.php

<?php
/**
 * @copyright	Copyright (C) 2011 Simplify Your Web, Inc. All rights reserved.
 * @license		GNU General Public License version 3 or later; see LICENSE.txt
 */

defined('JPATH_PLATFORM') or die;

jimport('syw.k2');

JFormHelper::loadFieldClass('list');

class JFormFieldK2Category extends JFormFieldList
{
	public $type = 'K2Category';
	
	/* hide category selection if no k2 */
	public function getLabel() 
	{
		if (SYWK2::exists()) {
			return parent::getLabel();
		}
		
		return '';
	}
	
	public function getInput() 
	{
		$html = '';
		
		if (SYWK2::exists()) {
			return parent::getInput();
		} else {
			$lang = JFactory::getLanguage();
			$lang->load('lib_syw.sys', JPATH_SITE);
						
			$html .= '<div style="margin-bottom:0" class="alert alert-error">';			
				$html .= '<span>'.JText::_('LIB_SYW_K2CATEGORY_MISSING').'</span>';
			$html .= '</div>';
		}
		
		return $html;
	}	
	
	public function getOptions()
	{
		$options = array();
		
		if (isset($this->element['show_root']))	{
			array_unshift($options, JHtml::_('select.option', '0', JText::_('JGLOBAL_ROOT')));
		}
		
		if (SYWK2::exists()) {
		
			$db = JFactory::getDBO();
			$query = $db->getQuery(true);
			
			$query->select('k2cat.*');
			$query->from('#__k2_categories AS k2cat');
			$query->where('k2cat.published=1');
			$query->where('k2cat.trash=0');
			$query->order('k2cat.parent');
			
			$db->setQuery($query);
			
			try {
				$categories = $db->loadObjectList();	
				
				$children = array();
				if ($categories != "" ) {
					if ($categories) {
						foreach ($categories as $category) {
							$category->title = $category->name;
							$category->parent_id = $category->parent;
							$parent = $category->parent;
							$list = @$children[$parent] ? $children[$parent] : array();
							array_push($list, $category);
							$children[$parent] = $list;
						}
					}
					$list = JHTML::_('menu.treerecurse', 0, '', array(), $children, 9999, 0, 0);
					
					foreach ($list as $item) {
						$options[] = JHTML::_('select.option', $item->id, $item->treename);
					}
				}
			} catch (RuntimeException $e) {
				//return false;
			}
		}

// Merge any additional options in the XML definition.
		$options = array_merge(parent::getOptions(), $options);

return $options;
	}
}