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<?php
/**
*------------------------------------------------------------------------------
* @package T3 Framework for Joomla!
*------------------------------------------------------------------------------
* @copyright Copyright (C) 2004-2013 JoomlArt.com. All Rights Reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
* @authors JoomlArt, JoomlaBamboo, (contribute to this project at github
* & Google group to become co-author)
* @Google group: https://groups.google.com/forum/#!forum/t3fw
* @Link: http://t3-framework.org
*------------------------------------------------------------------------------
*/
// No direct access
defined('_JEXEC') or die();
/**
* Radio List Element
*
* @package JAT3.Core.Element
*/
class T3Form extends JForm
{
public function __construct($name, array $options = array()){
if($name instanceof JForm){
foreach($name as $property => $value) {
$this->$property = $value;
}
} else {
parent::__construct($name, $options);
}
}
/**
* Method to load the form description from an XML string or object.
*
* The replace option works per field. If a field being loaded already exists in the current
* form definition then the behavior or load will vary depending upon the replace flag. If it
* is set to true, then the existing field will be replaced in its exact location by the new
* field being loaded. If it is false, then the new field being loaded will be ignored and the
* method will move on to the next field to load.
*
* @param string $data The name of an XML string or object.
* @param string $replace Flag to toggle whether form fields should be replaced if a field
* already exists with the same group/name.
* @param string $xpath An optional xpath to search for the fields.
*
* @return boolean True on success, false otherwise.
*
* @since 11.1
*/
public function load($data, $replace = true, $xpath = false)
{
// If the data to load isn't already an XML element or string return false.
if ((!($data instanceof SimpleXMLElement)) && (!is_string($data)))
{
return false;
}
// Attempt to load the XML if a string.
if (is_string($data))
{
try
{
$data = new SimpleXMLElement($data);
}
catch (Exception $e)
{
return false;
}
// Make sure the XML loaded correctly.
if (!$data)
{
return false;
}
}
// If we have no XML definition at this point let's make sure we get one.
if (empty($this->xml))
{
// If no XPath query is set to search for fields, and we have a <form />, set it and return.
if (!$xpath && ($data->getName() == 'form'))
{
$this->xml = $data;
// Synchronize any paths found in the load.
$this->syncPaths();
return true;
}
// Create a root element for the form.
else
{
$this->xml = new SimpleXMLElement('<form></form>');
}
}
// Get the XML elements to load.
$elements = array();
if ($xpath)
{
$elements = $data->xpath($xpath);
}
elseif ($data->getName() == 'form')
{
$elements = $data->children();
}
// If there is nothing to load return true.
if (empty($elements))
{
return true;
}
// Load the found form elements.
foreach ($elements as $element)
{
// Get an array of fields with the correct name.
$fields = $element->xpath('descendant-or-self::field');
foreach ($fields as $field)
{
// Get the group names as strings for ancestor fields elements.
$attrs = $field->xpath('ancestor::fields[@name]/@name');
$groups = array_map('strval', $attrs ? $attrs : array());
// Check to see if the field exists in the current form.
if ($current = $this->findField((string) $field['name'], implode('.', $groups)))
{
// If set to replace found fields, replace the data and remove the field so we don't add it twice.
if ($replace)
{
$olddom = dom_import_simplexml($current);
$loadeddom = dom_import_simplexml($field);
$addeddom = $olddom->ownerDocument->importNode($loadeddom, true); // Import child nodes too
$olddom->parentNode->replaceChild($addeddom, $olddom);
$loadeddom->parentNode->removeChild($loadeddom);
}
else
{
unset($field);
}
}
}
// Merge the new field data into the existing XML document.
self::addNode($this->xml, $element);
}
// Synchronize any paths found in the load.
$this->syncPaths();
return true;
}
}