item.php

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<?php
/**
 * @version		$Id: item.php 11646 2009-03-01 19:34:56Z ian $
 * @package		Joomla
 * @subpackage	Menus
 * @copyright	Copyright (C) 2005 - 2008 Open Source Matters. All rights reserved.
 * @license		GNU/GPL, see LICENSE.php
 * Joomla! is free software. This version may have been modified pursuant to the
 * GNU General Public License, and as distributed it includes or is derivative
 * of works licensed under the GNU General Public License or other free or open
 * source software licenses. See COPYRIGHT.php for copyright notices and
 * details.
 */

// Check to ensure this file is included in Joomla!
defined('_JEXEC') or die( 'Restricted access' );

jimport( 'joomla.application.component.model' );

/**
 * @package		Joomla
 * @subpackage	Menus
 */
class MenusModelItem extends JModel
{
	/**
	* Menu Item ID
	* 
	* @var int
	*/
	var $_id = null;
	
	/** @var object JTable object */
	var $_table = null;

	/** @var object JTable object */
	var $_url = null;

	/**
	 * Overridden constructor
	 * @access	protected
	 */
	function __construct()
	{
		parent::__construct();
		$url = JRequest::getVar('url', array(), '', 'array');
		if (isset($url['option']))
		 {
			$this->_url = 'index.php?option='.$url['option'];
			unset($url['option']);
			if (count($url)) {
				foreach ($url as $k => $v)
				{
					$this->_url .= '&'.$k.'='.$v;
				}
			}
		}
		
		$this->setId();
	}
	
	function setId()
	{
		$array = JRequest::getVar('cid', array(0), '', 'array');
		$this->_id = (int) $array[0];

		if (!$this->_id) {
		$this->_id = JRequest::getInt('id', 0);
		}
	}

	function &getItem()
	{
		static $item;
		if (isset($item)) {
			return $item;
		}

		$table =& $this->_getTable();

		// Load the current item if it has been defined
		$edit	= JRequest::getVar('edit',true);
		$cid = JRequest::getVar( 'cid', array(0), '', 'array' );
		JArrayHelper::toInteger($cid, array(0));
		if ($edit) {
			$table->load($cid[0]);
		}

		// Override the current item's type field if defined in the request
		if ($type = JRequest::getString('type')) {
			$table->type = $type;
		}

		// Override the current item's menutype field if defined in the request
		if ($menu_type = JRequest::getString('menutype')) {
			$table->menutype = $menu_type;
		}

		switch ($table->type)
		{
			case 'separator':
				$table->link = null;
				$table->componentid = 0;
				break;
			case 'url':
				$table->componentid = 0;
				break;
			case 'menulink':
				$table->componentid = 0;
				break;
			case 'component':
				// Override the current item's link field if defined in the request
				if (!is_null($this->_url)) {
					$table->link = $this->_url;
				}
				$url = str_replace('index.php?', '', $table->link);
				$url = str_replace('&amp;', '&', $url);
				$table->linkparts = null;
				if(strpos($url, '&amp;') !== false)
				{
				   $url = str_replace('&amp;','&',$url);
				}

				parse_str($url, $table->linkparts);

				$db = &$this->getDBO();
				if ($component = @$table->linkparts['option']) {
					$query = 'SELECT `id`' .
							' FROM `#__components`' .
							' WHERE `link` <> \'\'' .
							' AND `parent` = 0' .
							' AND `option` = "'.$db->getEscaped($component).'"';
					$db->setQuery( $query );
					$table->componentid = $db->loadResult();
				}
				break;
		}

		$item = $table;
		return $item;
	}

	function &getExpansion()
	{
		$item				= &$this->getItem();
		$return['option']	= JRequest::getCmd('expand');
		$menutype			= JRequest::getString('menutype');

		if ($return['option'])
		{
			require_once(JPATH_ADMINISTRATOR.DS.'components'.DS.'com_menus'.DS.'classes'.DS.'ilink.php');
			$handler		= new iLink($return['option'], $item->id, $menutype);
			$return['html'] = $handler->getTree();
			return $return;
		} else {
			$return['html'] = null;
		}
		return $return;
	}

	function &getUrlParams()
	{
		// Get the state parameters
		$item	=& $this->getItem();
		$params	= new JParameter('');

		if ($state =& $this->_getStateXML())
		{
			if (is_a($state, 'JSimpleXMLElement'))
			{
				$sp =& $state->getElementByPath('url');
				$params->setXML($sp);
				if (isset($item->linkparts) && is_array($item->linkparts)) {
					$params->loadArray($item->linkparts);
				}
			}
		}
		return $params;
	}

	function &getStateParams()
	{
		// Get the state parameters
		$item	=& $this->getItem();
		$params	= new JParameter($item->params);

		if ($state =& $this->_getStateXML())
		{
			if (is_a($state, 'JSimpleXMLElement'))
			{
				$sp =& $state->getElementByPath('params');
				$params->setXML($sp);
			}
		}
		return $params;
	}

	function &getAdvancedParams()
	{
		// Get the state parameters
		$item	=& $this->getItem();
		$params	= new JParameter($item->params);

		if ($state =& $this->_getStateXML())
		{
			if (is_a($state, 'JSimpleXMLElement'))
			{
				$ap =& $state->getElementByPath('advanced');
				$params->setXML($ap);
			}
		}
		return $params;
	}

	function &getComponentParams()
	{
		// Initialize variables
		$params	= null;
		$item	= &$this->getItem();

		if ($item->type == 'component')
		{
			$comp	= &$this->getComponent();
			$option	= preg_replace( '#\W#', '', $comp->option );
			$path	= JPATH_ADMINISTRATOR.DS.'components'.DS.$option.DS.'config.xml';

			$params = new JParameter( $item->params );
			if (file_exists( $path ))
			{
				$xml =& JFactory::getXMLParser('Simple');
				if ($xml->loadFile($path))
				{
					$document =& $xml->document;

					// if hide is set, don't show the component configuration while editing menu item
					$menu = $document->attributes('menu');
					if ( isset($menu) && $menu == 'hide' )
					{
						$params = null;
						return $params;
					}

					if (isset($document->params[0]->param))
					{
						// We will collect the hidden elements in an array
						// loop will mess up if we do it within the loop
						$hide	= array();
						for ($i=0,$n=count($document->params[0]->param); $i<$n; $i++)
						{
							if ($document->params[0]->param[$i]->attributes('menu') == 'hide')
							{
								$hide[]	= &$document->params[0]->param[$i];
							}
							else if ($document->params[0]->param[$i]->attributes('type') == 'radio' || $document->params[0]->param[$i]->attributes('type') == 'list') {
								$document->params[0]->param[$i]->addAttribute('default', '');
								$document->params[0]->param[$i]->addAttribute('type', 'list');
								$child = &$document->params[0]->param[$i]->addChild('option', array('value' => ''));
								$child->setData('Use Global');
							}
						}
						// Now remove any hidden elements
						for ($i = 0, $n = count( $hide ); $i < $n; $i++) {
							$document->params[0]->removeChild( $hide[$i] );
						}
					}
					$params->setXML( $document->params[0] );
				}
			}
		}
		return $params;
	}

	function &getSystemParams()
	{
		// Initialize variables
		$params	= null;
		$item	= &$this->getItem();

		$params = new JParameter( $item->params );
		if ($item->type == 'component') {
			$path = JPATH_BASE.DS.'components'.DS.'com_menus'.DS.'models'.DS.'metadata'.DS.'component.xml';
			if (file_exists( $path )) {
				$xml =& JFactory::getXMLParser('Simple');
				if ($xml->loadFile($path)) {
					$document =& $xml->document;
					$params->setXML($document->getElementByPath('state/params'));
				}
			}
		}
		return $params;
	}

	/**
	 * Get the name of the current menu item
	 *
	 * @return	string
	 * @access	public
	 * @since	1.5
	 */
	function getStateName()
	{
		$state =& $this->_getStateXML();

		if ( ! is_a($state, 'JSimpleXMLElement'))
		{
			return null;
		}

		$name = null;
		$sn =& $state->getElementByPath('name');
		if ($sn) {
			$name = $sn->data();
		}

		return JText::_($name);
	}

	/**
	 * Get the description of the current menu item
	 *
	 * @return	string
	 * @access	public
	 * @since	1.5
	 */
	function getStateDescription()
	{
		$state =& $this->_getStateXML();


		if ( ! is_a($state, 'JSimpleXMLElement'))
		{
			return null;
		}

		$description = null;
		$sd =& $state->getElementByPath('description');
		if ($sd) {
			$description = $sd->data();
		}

		return JText::_($description);
	}

	/**
	 * Gets the componet table object related to this menu item
	 */
	function &getComponent()
	{
		$item		=& $this->getItem();
		$id			= $item->componentid;
		$component	= & JTable::getInstance( 'component');
		$component->load( $id );
		return $component;
	}

	function checkout($uid = null)
	{
		$id = JRequest::getVar('cid', array(0), '', 'array');
		JArrayHelper::toInteger( $id, array(0) );

		// Make sure we have a user id to checkout the article with
		if (is_null($uid)) {
			$user	=& JFactory::getUser();
			$uid	= $user->get('id');
		}

		// Lets get to it and checkout the thing...
		$item	=& $this->getItem();
		if(!$item->checkout($uid, $id[0])) {
			$this->setError($this->_db->getErrorMsg());
			return false;
		}

		return true;
	}
	
	function checkin()
	{
		if ($this->_id) {
			$item =& $this->_getTable();

			if(!$item->checkin($this->_id)) {
				$this->setError($this->_db->getErrorMsg());
				return false;
			}

			return true;
		}

		return false;
	}

	function store()
	{
		// Initialize variables
		$db		=& JFactory::getDBO();
		$row	=& $this->getItem();