Component-Builder/admin/models/fields/matchfield.php

<?php
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	@version		2.7.x
	@created		30th April, 2015
	@package		Component Builder
	@subpackage		matchfield.php
	@author			Llewellyn van der Merwe <http://joomlacomponentbuilder.com>	
	@github			Joomla Component Builder <https://github.com/vdm-io/Joomla-Component-Builder>
	@copyright		Copyright (C) 2015. All Rights Reserved
	@license		GNU/GPL Version 2 or later - http://www.gnu.org/licenses/gpl-2.0.html 
	
	Builds Complex Joomla Components 
                                                             
/-----------------------------------------------------------------------------------------------------------------------------*/

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

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

/**
 * Matchfield Form Field class for the Componentbuilder component
 */
class JFormFieldMatchfield extends JFormFieldList
{
	/**
	 * The matchfield field type.
	 *
	 * @var		string
	 */
	public $type = 'matchfield';

	/**
	 * Method to get a list of options for a list input.
	 *
	 * @return	array		An array of JHtml options.
	 */
	public function getOptions()
	{
		// load the db opbject
		$db = JFactory::getDBO();		
		// get the input from url
		$jinput = JFactory::getApplication()->input;
		// get the id
		$ID = $jinput->getInt('id', 0);
		// rest the fields ids
		$fieldIds = array();
		if (is_numeric($ID) && $ID >= 1)
		{
			// get the admin view ID
			$adminView = ComponentbuilderHelper::getVar('admin_fields_conditions', (int) $ID, 'id', 'admin_view');
		}
		else
		{
			// get the admin view ID
			$adminView = $jinput->getInt('refid', 0);
		}
		if (is_numeric($adminView) && $adminView >= 1)
		{
			// get all the fields linked to the admin view
			if ($addFields = ComponentbuilderHelper::getVar('admin_fields', (int) $adminView, 'admin_view', 'addfields'))
			{
				if (ComponentbuilderHelper::checkJson($addFields))
				{
					$addFields = json_decode($addFields, true);
					if (ComponentbuilderHelper::checkArray($addFields))
					{
						foreach($addFields as $addField)
						{
							if (isset($addField['field']))
							{
								$fieldIds[] = (int) $addField['field'];
							}
						}
					}
				}
			}
		}
		$query = $db->getQuery(true);
		$query->select($db->quoteName(array('a.id','a.name'),array('id','name')));
		$query->from($db->quoteName('#__componentbuilder_field', 'a'));
		$query->where($db->quoteName('a.published') . ' >= 1');
		// filter by fields linked
		if (ComponentbuilderHelper::checkArray($fieldIds))
		{
			// only load these fields
			$query->where($db->quoteName('a.id') . ' IN (' . implode(',', $fieldIds) . ')');
		}
		$query->order('a.name ASC');
		$db->setQuery((string)$query);
		$items = $db->loadObjectList();
		$options = array();
		if ($items)
		{
			$options[] = JHtml::_('select.option', '', 'Select an option');
			foreach($items as $item)
			{
				$options[] = JHtml::_('select.option', $item->id, $item->name);
			}
		}
		
		return $options;
	}
}