fieldcontexts.php
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<?php
/**
* @package Joomla.Administrator
* @subpackage com_fields
*
* @copyright Copyright (C) 2005 - 2019 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
defined('_JEXEC') or die;
JFormHelper::loadFieldClass('list');
/**
* Fields Contexts
*
* @since 3.7.0
*/
class JFormFieldFieldcontexts extends JFormFieldList
{
public $type = 'Fieldcontexts';
/**
* Method to get the field input markup for a generic list.
* Use the multiple attribute to enable multiselect.
*
* @return string The field input markup.
*
* @since 3.7.0
*/
protected function getInput()
{
return $this->getOptions() ? parent::getInput() : '';
}
/**
* Method to get the field options.
*
* @return array The field option objects.
*
* @since 3.7.0
*/
protected function getOptions()
{
$parts = explode('.', $this->value);
$eName = str_replace('com_', '', $parts[0]);
$file = JPath::clean(JPATH_ADMINISTRATOR . '/components/' . $parts[0] . '/helpers/' . $eName . '.php');
$contexts = array();
if (!file_exists($file))
{
return array();
}
$prefix = ucfirst($eName);
$cName = $prefix . 'Helper';
JLoader::register($cName, $file);
if (class_exists($cName) && is_callable(array($cName, 'getContexts')))
{
$contexts = $cName::getContexts();
}
if (!$contexts || !is_array($contexts) || count($contexts) == 1)
{
return array();
}
return $contexts;
}
}