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/home/develito/httpdocs/libraries/regularlabs/fields/k2.php

<?php
/**
 * @package         Regular Labs Library
 * @version         19.9.15966
 * 
 * @author          Peter van Westen <info@regularlabs.com>
 * @link            http://www.regularlabs.com
 * @copyright       Copyright © 2019 Regular Labs All Rights Reserved
 * @license         http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL
 */

defined('_JEXEC') or die;

if ( ! is_file(JPATH_LIBRARIES . '/regularlabs/autoload.php'))
{
	return;
}

require_once JPATH_LIBRARIES . '/regularlabs/autoload.php';

// If controller.php exists, assume this is K2 v3
defined('RL_K2_VERSION') or define('RL_K2_VERSION', JFile::exists(JPATH_ADMINISTRATOR . '/components/com_k2/controller.php') ? 3 : 2);

class JFormFieldRL_K2 extends \RegularLabs\Library\FieldGroup
{
	public $type = 'K2';

protected function getInput()
	{
		if ($error = $this->missingFilesOrTables(['categories', 'items', 'tags']))
		{
			return $error;
		}

return $this->getSelectList();
	}

function getCategories()
	{
		$state_field = RL_K2_VERSION == 3 ? 'state' : 'published';

$query = $this->db->getQuery(true)
			->select('COUNT(*)')
			->from('#__k2_categories AS c')
			->where('c.' . $state_field . ' > -1');
		$this->db->setQuery($query);
		$total = $this->db->loadResult();

if ($total > $this->max_list_count)
		{
			return -1;
		}

$parent_field   = RL_K2_VERSION == 3 ? 'parent_id' : 'parent';
		$title_field    = RL_K2_VERSION == 3 ? 'title' : 'name';
		$ordering_field = RL_K2_VERSION == 3 ? 'lft' : 'ordering';

$query->clear('select')
			->select('c.id, c.' . $parent_field . ' AS parent_id, c.' . $title_field . ' AS title, c.' . $state_field . ' AS published');
		if ( ! $this->get('getcategories', 1))
		{
			$query->where('c.' . $parent_field . ' = 0');
		}
		$query->order('c.' . $ordering_field . ', c.' . $title_field);
		$this->db->setQuery($query);
		$items = $this->db->loadObjectList();

return $this->getOptionsTreeByList($items);
	}

function getTags()
	{
		$state_field = RL_K2_VERSION == 3 ? 'state' : 'published';

$query = $this->db->getQuery(true)
			->select('t.name as id, t.name as name')
			->from('#__k2_tags AS t')
			->where('t.' . $state_field . ' = 1')
			->where('t.name != ' . $this->db->quote(''))
			->group('t.name')
			->order('t.name');
		$this->db->setQuery($query);
		$list = $this->db->loadObjectList();

return $this->getOptionsByList($list);
	}

function getItems()
	{
		$state_field = RL_K2_VERSION == 3 ? 'state' : 'published';

$query = $this->db->getQuery(true)
			->select('COUNT(*)')
			->from('#__k2_items AS i')
			->where('i.' . $state_field . ' > -1');
		$this->db->setQuery($query);
		$total = $this->db->loadResult();

if ($total > $this->max_list_count)
		{
			return -1;
		}

$cat_title_field = RL_K2_VERSION == 3 ? 'title' : 'name';

$query->clear('select')
			->select('i.id, i.title as name, c.' . $cat_title_field . ' as cat, i.' . $state_field . ' as published')
			->join('LEFT', '#__k2_categories AS c ON c.id = i.catid')
			->group('i.id')
			->order('i.title, i.ordering, i.id');
		$this->db->setQuery($query);
		$list = $this->db->loadObjectList();

return $this->getOptionsByList($list, ['cat', 'id']);
	}
}