controller.php

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		$query = 'SELECT position, ordering, showtitle, title'
		. ' FROM #__modules'
		. ' WHERE '. $where
		. ' ORDER BY ordering'
		;
		$db->setQuery( $query );
		if ( !($orders = $db->loadObjectList()) ) {
			echo $db->stderr();
			return false;
		}

		$orders2 	= array();

		$l = 0;
		$r = 0;
		for ($i=0, $n=count( $orders ); $i < $n; $i++) {
			$ord = 0;
			if (array_key_exists( $orders[$i]->position, $orders2 )) {
				$ord =count( array_keys( $orders2[$orders[$i]->position] ) ) + 1;
			}

			$orders2[$orders[$i]->position][] = JHTML::_('select.option',  $ord, $ord.'::'.addslashes( $orders[$i]->title ) );
		}

		// get selected pages for $lists['selections']
		if ( $cid[0] ) {
			$query = 'SELECT menuid AS value'
			. ' FROM #__modules_menu'
			. ' WHERE moduleid = '.(int) $row->id
			;
			$db->setQuery( $query );
			$lookup = $db->loadObjectList();
			if (empty( $lookup )) {
				$lookup = array( JHTML::_('select.option',  '-1' ) );
				$row->pages = 'none';
			} elseif (count($lookup) == 1 && $lookup[0]->value == 0) {
				$row->pages = 'all';
			} else {
				$row->pages = null;
			}
		} else {
			$lookup = array( JHTML::_('select.option',  0, JText::_( 'All' ) ) );
			$row->pages = 'all';
		}

		if ( $row->access == 99 || $row->client_id == 1 || $lists['client_id'] ) {
			$lists['access'] 			= 'Administrator';
			$lists['showtitle'] 		= 'N/A <input type="hidden" name="showtitle" value="1" />';
			$lists['selections'] 		= 'N/A';
		} else {
			if ( $client->id == '1' ) {
				$lists['access'] 		= 'N/A';
				$lists['selections'] 	= 'N/A';
			} else {
				$lists['access'] 		= JHTML::_('list.accesslevel',  $row );

				$selections				= JHTML::_('menu.linkoptions');
				$lists['selections']	= JHTML::_('select.genericlist',   $selections, 'selections[]', 'class="inputbox" size="15" multiple="multiple"', 'value', 'text', $lookup, 'selections' );
			}
			$lists['showtitle'] = JHTML::_('select.booleanlist',  'showtitle', 'class="inputbox"', $row->showtitle );
		}

		// build the html select list for published
		$lists['published'] = JHTML::_('select.booleanlist',  'published', 'class="inputbox"', $row->published );

		$row->description = '';

		$lang =& JFactory::getLanguage();
		if ( $client->id != '1' ) {
			$lang->load( trim($row->module), JPATH_SITE );
		} else {
			$lang->load( trim($row->module) );
		}

		// xml file for module
		if ($row->module == 'custom') {
			$xmlfile = JApplicationHelper::getPath( $path, 'mod_custom' );
		} else {
			$xmlfile = JApplicationHelper::getPath( $path, $row->module );
		}

		$data = JApplicationHelper::parseXMLInstallFile($xmlfile);
		if ($data)
		{
			foreach($data as $key => $value) {
				$row->$key = $value;
			}
		}

		// get params definitions
		$params = new JParameter( $row->params, $xmlfile, 'module' );

		require_once( JApplicationHelper::getPath( 'admin_html' ) );
		HTML_modules::edit( $model, $row, $orders2, $lists, $params, $client );
	}

	/**
	* Displays a list to select the creation of a new module
	*/
	function add()
	{
		global $mainframe;

		// Initialize some variables
		$modules	= array();
		$client		=& JApplicationHelper::getClientInfo(JRequest::getVar('client', '0', '', 'int'));

		// path to search for modules
		if ($client->id == '1') {
			$path		= JPATH_ADMINISTRATOR.DS.'modules';
			$langbase	= JPATH_ADMINISTRATOR;
		} else {
			$path		= JPATH_ROOT.DS.'modules';
			$langbase	= JPATH_ROOT;
		}

		jimport('joomla.filesystem.folder');
		$dirs = JFolder::folders( $path );
		$lang =& JFactory::getLanguage();

		foreach ($dirs as $dir)
		{
			if (substr( $dir, 0, 4 ) == 'mod_')
			{
				$files 				= JFolder::files( $path.DS.$dir, '^([_A-Za-z0-9]*)\.xml$' );
				$module				= new stdClass;
				$module->file 		= $files[0];
				$module->module 	= str_replace( '.xml', '', $files[0] );
				$module->path 		= $path.DS.$dir;
				$modules[]			= $module;

				$lang->load( $module->module, $langbase );
			}
		}

		require_once( JPATH_COMPONENT.DS.'helpers'.DS.'xml.php' );
		ModulesHelperXML::parseXMLModuleFile( $modules, $client );

		// sort array of objects alphabetically by name
		JArrayHelper::sortObjects( $modules, 'name' );

		require_once( JApplicationHelper::getPath( 'admin_html' ) );
		HTML_modules::add( $modules, $client );
	}

	/**
	* Deletes one or more modules
	*
	* Also deletes associated entries in the #__module_menu table.
	* @param array An array of unique category id numbers
	*/
	function remove()
	{
		global $mainframe;

		// Initialize some variables
		$db		=& JFactory::getDBO();
		$client	=& JApplicationHelper::getClientInfo(JRequest::getVar('client', '0', '', 'int'));
		$this->setRedirect( 'index.php?option=com_modules&client='.$client->id );

		$cid	= JRequest::getVar( 'cid', array(), 'post', 'array' );
		JArrayHelper::toInteger( $cid );

		if (empty( $cid )) {
			return JError::raiseWarning( 500, 'No items selected' );
		}

		$cids = implode( ',', $cid );

		$query = 'SELECT id, module, title, iscore, params'
		. ' FROM #__modules WHERE id IN ('.$cids.')'
		;
		$db->setQuery( $query );
		if (!($rows = $db->loadObjectList())) {
			return JError::raiseError( 500, $db->getErrorMsg() );
		}

		// remove mappings first (lest we leave orphans)
		$query = 'DELETE FROM #__modules_menu'
			. ' WHERE moduleid IN ( '.$cids.' )'
			;
		$db->setQuery( $query );
		if (!$db->query()) {
			return JError::raiseError( 500, $db->getErrorMsg() );
		}
		// remove module
		$query = 'DELETE FROM #__modules'
			. ' WHERE id IN ('.$cids.')'
			;
		$db->setQuery( $query );
		if (!$db->query()) {
			return JError::raiseError( 500, $db->getErrorMsg() );
		}

		$this->setMessage( JText::sprintf( 'Items removed', count( $cid ) ) );
	}

	/**
	* Publishes or Unpublishes one or more modules
	*/
	function publish()
	{
		global $mainframe;

		// Initialize some variables
		$db 	=& JFactory::getDBO();
		$user 	=& JFactory::getUser();
		$client	=& JApplicationHelper::getClientInfo(JRequest::getVar('client', '0', '', 'int'));
		$this->setRedirect( 'index.php?option=com_modules&client='.$client->id );

		$cache = & JFactory::getCache();
		$cache->clean( 'com_content' );

		$cid 	= JRequest::getVar( 'cid', array(), 'post', 'array' );
		JArrayHelper::toInteger($cid);

		$task	= $this->getTask();
		$publish	= ($task == 'publish');

		if (empty( $cid )) {
			return JError::raiseWarning( 500, 'No items selected' );
		}

		$cids = implode( ',', $cid );

		$query = 'UPDATE #__modules'
		. ' SET published = ' . intval( $publish )
		. ' WHERE id IN ( '.$cids.' )'
		. ' AND ( checked_out = 0 OR ( checked_out = '.(int) $user->get('id').' ) )'
		;
		$db->setQuery( $query );
		if (!$db->query()) {
			return JError::raiseWarning( 500, $db->getErrorMsg() );
		}

		if (count( $cid ) == 1) {
			$row =& JTable::getInstance('module');
			$row->checkin( $cid[0] );
		}
	}

	/**
	 * Cancels an edit operation
	 */
	function cancel()
	{
		global $mainframe;

		// Initialize some variables
		$db		=& JFactory::getDBO();
		$client	=& JApplicationHelper::getClientInfo(JRequest::getVar('client', '0', '', 'int'));
		$this->setRedirect( 'index.php?option=com_modules&client='.$client->id );

		$row =& JTable::getInstance('module');
		// ignore array elements
		$row->bind(JRequest::get('post'), 'selections params' );
		$row->checkin();
	}

	/**
	 * Moves the order of a record
	 */
	function reorder()
	{
		global $mainframe;

		// Initialize some variables
		$db		=& JFactory::getDBO();
		$client	=& JApplicationHelper::getClientInfo(JRequest::getVar('client', '0', '', 'int'));
		$this->setRedirect( 'index.php?option=com_modules&client='.$client->id );

		$cid 	= JRequest::getVar( 'cid', array(), 'post', 'array' );
		JArrayHelper::toInteger($cid);

		$task	= $this->getTask();
		$inc	= ($task == 'orderup' ? -1 : 1);

		if (empty( $cid )) {
			return JError::raiseWarning( 500, 'No items selected' );
		}

		$row =& JTable::getInstance('module');
		$row->load( (int) $cid[0] );

		$row->move( $inc, 'position = '.$db->Quote( $row->position ).' AND client_id='.(int) $client->id  );
	}

	/**
	 * Changes the access level of a record
	 */
	function access()
	{
		global $mainframe;

		// Initialize some variables
		$db		=& JFactory::getDBO();
		$client	=& JApplicationHelper::getClientInfo(JRequest::getVar('client', '0', '', 'int'));
		$this->setRedirect( 'index.php?option=com_modules&client='.$client->id );

		$cid 	= JRequest::getVar( 'cid', array(), 'post', 'array' );
		JArrayHelper::toInteger($cid);

		$task	= JRequest::getCmd( 'task' );

		if (empty( $cid )) {
			return JError::raiseWarning( 500, 'No items selected' );
		}

		switch ( $task )
		{
			case 'accesspublic':
				$access = 0;
				break;

			case 'accessregistered':
				$access = 1;
				break;

			case 'accessspecial':
				$access = 2;
				break;
		}

		$row =& JTable::getInstance('module');
		$row->load( (int) $cid[0] );
		$row->access = $access;

		if ( !$row->check() ) {
			JError::raiseWarning( 500, $row->getError() );
		}
		if ( !$row->store() ) {
			JError::raiseWarning( 500, $row->getError() );
		}
	}

	/**
	 * Saves the orders of the supplied list
	 */
	function saveOrder()
	{
		// Initialize some variables
		$db		=& JFactory::getDBO();
		$client	=& JApplicationHelper::getClientInfo(JRequest::getVar('client', '0', '', 'int'));
		$this->setRedirect( 'index.php?option=com_modules&client='.$client->id );

		$cid 	= JRequest::getVar( 'cid', array(), 'post', 'array' );
		JArrayHelper::toInteger($cid);

		if (empty( $cid )) {
			return JError::raiseWarning( 500, 'No items selected' );
		}

		$total		= count( $cid );
		$row 		=& JTable::getInstance('module');
		$groupings = array();

		$order 		= JRequest::getVar( 'order', array(0), 'post', 'array' );
		JArrayHelper::toInteger($order);

		// update ordering values
		for ($i = 0; $i < $total; $i++)
		{
			$row->load( (int) $cid[$i] );
			// track postions
			$groupings[] = $row->position;

			if ($row->ordering != $order[$i])
			{
				$row->ordering = $order[$i];
				if (!$row->store()) {
					return JError::raiseWarning( 500, $db->getErrorMsg() );
				}
			}
		}

		// execute updateOrder for each parent group
		$groupings = array_unique( $groupings );
		foreach ($groupings as $group){
			$row->reorder('position = '.$db->Quote($group).' AND client_id = '.(int) $client->id);
		}

		$this->setMessage (JText::_( 'New ordering saved' ));
	}

	function preview()
	{
		$document =& JFactory::getDocument();
		$document->setTitle(JText::_('Module Preview'));

		require_once( JApplicationHelper::getPath( 'admin_html' ) );
		HTML_modules::preview( );
	}
}