Cost-Benefit-Projection/admin/models/fields/memberuser.php

<?php
/*----------------------------------------------------------------------------------|  www.giz.de  |----/
	Deutsche Gesellschaft für International Zusammenarbeit (GIZ) Gmb 
/-------------------------------------------------------------------------------------------------------/

	@version		3.4.1
	@build			22nd May, 2016
	@created		15th June, 2012
	@package		Cost Benefit Projection
	@subpackage		memberuser.php
	@author			Llewellyn van der Merwe <http://www.vdm.io>	
	@owner			Deutsche Gesellschaft für International Zusammenarbeit (GIZ) Gmb
	@copyright		Copyright (C) 2015. All Rights Reserved
	@license		GNU/GPL Version 2 or later - http://www.gnu.org/licenses/gpl-2.0.html
	
/-------------------------------------------------------------------------------------------------------/
	Cost Benefit Projection Tool.
/------------------------------------------------------------------------------------------------------*/

// No direct access to this file
defined('_JEXEC') or die('Restricted access');

// import the list field type
jimport('joomla.form.helper');
JFormHelper::loadFieldClass('user');

/**
 * Memberuser Form Field class for the Costbenefitprojection component
 */
class JFormFieldMemberuser extends JFormFieldUser
{
	/**
	 * The memberuser field type.
	 *
	 * @var		string
	 */
	public $type = 'memberuser';

	/**
	 * Method to get the filtering groups (null means no filtering)
	 *
	 * @return  mixed  array of filtering groups or null.
	 *
	 * @since   1.6
	 */
	protected function getGroups()
	{
		// set the groups array
		$groups = JComponentHelper::getParams('com_costbenefitprojection')->get('memberuser');
		return $groups;
	}

	/**
	 * Method to get the users to exclude from the list of users
	 *
	 * @return  mixed  Array of users to exclude or null to to not exclude them
	 *
	 * @since   1.6
	 */
	protected function getExcluded()
	{
		return null;
	}
}