<?php
/**
 * Attachments component
 *
 * @package Attachments
 * @subpackage Attachments_Component
 *
 * @copyright Copyright (C) 2007-2011 Jonathan M. Cameron, All Rights Reserved
 * @license http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL
 * @link http://joomlacode.org/gf/project/attachments/frs/
 * @author Jonathan M. Cameron
 */

defined('_JEXEC') or die('Restricted access');

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

/**
 * Class for a controller for dealing with lists of attachments
 *
 * @package Attachments
 */
class AttachmentsControllerAttachments extends JController
{
	/**
	 * Constructor
	 */
	function __construct( $default = array('default_task' => 'noop') )
	{
		parent::__construct( $default );
	}

	/** A noop function so this controller does not have a usable default */
	function noop()
	{
		$errmsg = JText::_('ERROR_NO_FUNCTION_SPECIFIED') . ' (ERR 80)';
		JError::raiseError(500, $errmsg);
	}


	/**
	 * Display the attachments list
	 *
	 * @param int $parent_id the id of the parent
	 * @param string $parent_type the type of parent
	 * @param string $parent_entity the type entity of the parent
	 * @param string $title title to be shown above the list of articles.  If null, use system defaults.
	 * @param bool $show_file_links enable showing links for the filenames
	 * @param bool $allow_edit enable showing edit/delete links (if permissions are okay)
	 * @param bool $echo if true the output will be echoed; otherwise the results are returned.
	 * @param string $from The 'from' info
	 *
	 * @return the string (if $echo is false)
	 */
	function display($parent_id, $parent_type, $parent_entity,
					 $title=null, $show_file_links=true, $allow_edit=true,
					 $echo=true, $from=null)
	{
		$document =& JFactory::getDocument();

		// Get an instance of the model
		$this->addModelPath(JPATH_SITE.DS.'components'.DS.'com_attachments'.DS.'models');
		$model =& $this->getModel('Attachments');
		if ( !$model ) {
			$errmsg = JText::_('ERROR_UNABLE_TO_FIND_MODEL') . ' (ERR 81)';
			JError::raiseError(500, $errmsg);
			}

		$model->setParentId($parent_id, $parent_type, $parent_entity);

		// Get the component parameters
		jimport('joomla.application.component.helper');
		$params =& JComponentHelper::getParams('com_attachments');

		// Set up to list the attachments for this artticle
		$sort_order = $params->get('sort_order', 'filename');
		$model->setSortOrder($sort_order);

		// If none of the attachments should be visible, exit now
		if ( ! $model->someVisible() ) {
			return false;
			}

		// Get the view
		$this->addViewPath(JPATH_SITE.DS.'components'.DS.'com_attachments'.DS.'views');
		$viewType = $document->getType();
		$view =& $this->getView('Attachments', $viewType);
		if ( !$view ) {
			$errmsg = JText::_('ERROR_UNABLE_TO_FIND_VIEW') . ' (ERR 82)';
			JError::raiseError(500, $errmsg);
			}
		$view->setModel($model);

		// Construct the update URL template
		$update_url = "index.php?option=com_attachments&task=update&id=%d";
		$update_url .= "&from=$from&tmpl=component";
		$update_url = JRoute::_($update_url);
		$view->assignRef('update_url', $update_url);

		// Construct the delete URL template
		$delete_url = "index.php?option=com_attachments&task=delete_warning&id=%d";
		$delete_url .= "&parent_type=$parent_type&parent_entity=$parent_entity&parent_id=" . (int)$parent_id;
		$delete_url .= "&from=$from&tmpl=component";
		$delete_url = JRoute::_($delete_url);
		$view->assignRef('delete_url', $delete_url);

		// Set some display settings
		$view->assign('title', $title);
		$view->assign('show_file_links', $show_file_links);
		$view->assign('allow_edit', $allow_edit);
		$view->assign('from', $from);

		// Get the view to generate the display output from the template
		if ( $view->display() === true ) {

			// Display or return the results
			if ( $echo ) {
				echo $view->getOutput();
				}
			else {
				return $view->getOutput();
				}

			}

		return false;
	}

}

?>