<?php
/**
 * @package 	mod_bt_contentslider - BT ContentSlider Module
 * @version		1.1
 * @created		Oct 2011

 * @author		BowThemes
 * @email		support@bowthems.com
 * @website		http://bowthemes.com
 * @support		Forum - http://bowthemes.com/forum/
 * @copyright	Copyright (C) 2012 Bowthemes. All rights reserved.
 * @license		http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL
 *
 */

// no direct access
defined('_JEXEC') or die('Restricted access');
jimport('joomla.html.html');
jimport('joomla.form.formfield');

class JFormFieldK2Multicategories extends JFormFieldList {
	protected $type = 'K2Multicategories'; //the form field type
    var $options = array();
	protected function getInput(){
		$db = JFactory::getDBO();
		$db->setQuery('SELECT enabled FROM #__extensions WHERE name = ' . $db->quote('com_k2'));
		$rs = $db->loadResult();
        if ($rs) { 
			return parent::getInput();
		}else{
			return '<span class="' . $this->element['class'] . '">' . JText::_('K2_IS_NOT_ENABLED_OR_INSTALLED') . '</span>';
		}
	}
    protected function getOptions() {

		$db = JFactory::getDBO();   
		// generating query
		$db->setQuery("SELECT c.name AS name, c.id AS id, c.parent AS parent FROM #__k2_categories AS c WHERE published = 1 AND trash = 0 ORDER BY c.name, c.parent ASC");
		// getting results
		$results = $db->loadObjectList();
		
		if(count($results)){
			// iterating
			$temp_options = array();
			
			foreach ($results as $item) {
				array_push($temp_options, array($item->id, $item->name, $item->parent));	
			}

			foreach ($temp_options as $option) {
				if($option[2] == 0) {
					$this->options[] = JHtml::_('select.option', $option[0], $option[1]);
					$this->recursive_options($temp_options, 1, $option[0]);
				}
			}		

			return $this->options;
		}
		
        return $this->options;
		
	}
 	// bind function to save
    function bind( $array, $ignore = '' ) {
        if (key_exists( 'field-name', $array ) && is_array( $array['field-name'] )) {
        	$array['field-name'] = implode( ',', $array['field-name'] );
        }
        
        return parent::bind( $array, $ignore );
    }

    function recursive_options($temp_options, $level, $parent){
		foreach ($temp_options as $option) {
      		if($option[2] == $parent) {
		  		$level_string = '';
		  		for($i = 0; $i < $level; $i++) $level_string .= '- - ';
        	    $this->options[] = JHtml::_('select.option',  $option[0], $level_string . $option[1]);
       	    	$this->recursive_options($temp_options, $level+1, $option[0]);
			}
       	}
    }
}