controller.php

Joomla!是一套获得过多个奖项的内容管理系统(Content Management System, CMS)。Joomla!采用PHP+MySQL数据库开发

<?php
/**
 * @version		$Id: controller.php 11633 2009-02-19 23:59:09Z willebil $
 * @package		Joomla
 * @subpackage	Content
 * @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.controller');

/**
 * Content Component Controller
 *
 * @package		Joomla
 * @subpackage	Content
 * @since 1.5
 */
class ContentController extends JController
{
	/**
	 * Articles element
	 */
	function element()
	{
		$model	= &$this->getModel( 'element' );
		$view	= &$this->getView( 'element');
		$view->setModel( $model, true );
		$view->display();
	}

	/**
	* Compiles a list of installed or defined modules
	* @param database A database connector object
	*/
	function viewContent()
	{
		global $mainframe;

		// Initialize variables
		$db			=& JFactory::getDBO();
		$filter		= null;

		// Get some variables from the request
		$sectionid			= JRequest::getVar( 'sectionid', -1, '', 'int' );
		$redirect			= $sectionid;
		$option				= JRequest::getCmd( 'option' );
		$context			= 'com_content.viewcontent';
		$filter_order		= $mainframe->getUserStateFromRequest( $context.'filter_order',		'filter_order',		'',	'cmd' );
		$filter_order_Dir	= $mainframe->getUserStateFromRequest( $context.'filter_order_Dir',	'filter_order_Dir',	'',	'word' );
		$filter_state		= $mainframe->getUserStateFromRequest( $context.'filter_state',		'filter_state',		'',	'word' );
		$catid				= $mainframe->getUserStateFromRequest( $context.'catid',			'catid',			0,	'int' );
		$filter_authorid	= $mainframe->getUserStateFromRequest( $context.'filter_authorid',	'filter_authorid',	0,	'int' );
		$filter_sectionid	= $mainframe->getUserStateFromRequest( $context.'filter_sectionid',	'filter_sectionid',	-1,	'int' );
		$search				= $mainframe->getUserStateFromRequest( $context.'search',			'search',			'',	'string' );
		$search				= JString::strtolower($search);

		$limit		= $mainframe->getUserStateFromRequest('global.list.limit', 'limit', $mainframe->getCfg('list_limit'), 'int');
		$limitstart	= $mainframe->getUserStateFromRequest($context.'limitstart', 'limitstart', 0, 'int');

		// In case limit has been changed, adjust limitstart accordingly
		$limitstart = ( $limit != 0 ? (floor($limitstart / $limit) * $limit) : 0 );

		//$where[] = "c.state >= 0";
		$where[] = 'c.state != -2';

		if (!$filter_order) {
			$filter_order = 'section_name';
		}
		if ($filter_order == 'c.ordering') {
			$order = ' ORDER BY section_name, cc.title, c.ordering '. $filter_order_Dir;
		} else {
			$order = ' ORDER BY '. $filter_order .' '. $filter_order_Dir .', section_name, cc.title, c.ordering';
		}
		$all = 1;

		if ($filter_sectionid >= 0) {
			$filter = ' WHERE cc.section = '. (int) $filter_sectionid;
		}
		$section->title = 'All Articles';
		$section->id = 0;

		/*
		 * Add the filter specific information to the where clause
		 */
		// Section filter
		if ($filter_sectionid >= 0) {
			$where[] = 'c.sectionid = ' . (int) $filter_sectionid;
		}
		// Category filter
		if ($catid > 0) {
			$where[] = 'c.catid = ' . (int) $catid;
		}
		// Author filter
		if ($filter_authorid > 0) {
			$where[] = 'c.created_by = ' . (int) $filter_authorid;
		}
		// Content state filter
		if ($filter_state) {
			if ($filter_state == 'P') {
				$where[] = 'c.state = 1';
			} else {
				if ($filter_state == 'U') {
					$where[] = 'c.state = 0';
				} else if ($filter_state == 'A') {
					$where[] = 'c.state = -1';
				} else {
					$where[] = 'c.state != -2';
				}
			}
		}
		// Keyword filter
		if ($search) {
			$where[] = '(LOWER( c.title ) LIKE '.$db->Quote( '%'.$db->getEscaped( $search, true ).'%', false ) .
				' OR c.id = ' . (int) $search . ')';
		}

		// Build the where clause of the content record query
		$where = (count($where) ? ' WHERE '.implode(' AND ', $where) : '');

		// Get the total number of records
		$query = 'SELECT COUNT(*)' .
				' FROM #__content AS c' .
				' LEFT JOIN #__categories AS cc ON cc.id = c.catid' .
				' LEFT JOIN #__sections AS s ON s.id = c.sectionid' .
				$where;
		$db->setQuery($query);
		$total = $db->loadResult();


		// Create the pagination object
		jimport('joomla.html.pagination');
		$pagination = new JPagination($total, $limitstart, $limit);

		// Get the articles
		$query = 'SELECT c.*, g.name AS groupname, cc.title AS name, u.name AS editor, f.content_id AS frontpage, s.title AS section_name, v.name AS author' .
				' FROM #__content AS c' .
				' LEFT JOIN #__categories AS cc ON cc.id = c.catid' .
				' LEFT JOIN #__sections AS s ON s.id = c.sectionid' .
				' LEFT JOIN #__groups AS g ON g.id = c.access' .
				' LEFT JOIN #__users AS u ON u.id = c.checked_out' .
				' LEFT JOIN #__users AS v ON v.id = c.created_by' .
				' LEFT JOIN #__content_frontpage AS f ON f.content_id = c.id' .
				$where .
				$order;
		$db->setQuery($query, $pagination->limitstart, $pagination->limit);
		$rows = $db->loadObjectList();

		// If there is a database query error, throw a HTTP 500 and exit
		if ($db->getErrorNum()) {
			JError::raiseError( 500, $db->stderr() );
			return false;
		}

		// get list of categories for dropdown filter
		$query = 'SELECT cc.id AS value, cc.title AS text, section' .
				' FROM #__categories AS cc' .
				' INNER JOIN #__sections AS s ON s.id = cc.section ' .
				$filter .
				' ORDER BY s.ordering, cc.ordering';
		$lists['catid'] = ContentHelper::filterCategory($query, $catid);

		// get list of sections for dropdown filter
		$javascript = 'onchange="document.adminForm.submit();"';
		$lists['sectionid'] = JHTML::_('list.section', 'filter_sectionid', $filter_sectionid, $javascript);

		// get list of Authors for dropdown filter
		$query = 'SELECT c.created_by, u.name' .
				' FROM #__content AS c' .
				' INNER JOIN #__sections AS s ON s.id = c.sectionid' .
				' LEFT JOIN #__users AS u ON u.id = c.created_by' .
				' WHERE c.state <> -1' .
				' AND c.state <> -2' .
				' GROUP BY u.name' .
				' ORDER BY u.name';
		$authors[] = JHTML::_('select.option', '0', '- '.JText::_('Select Author').' -', 'created_by', 'name');
		$db->setQuery($query);
		$authors = array_merge($authors, $db->loadObjectList());
		$lists['authorid'] = JHTML::_('select.genericlist',  $authors, 'filter_authorid', 'class="inputbox" size="1" onchange="document.adminForm.submit( );"', 'created_by', 'name', $filter_authorid);

		// state filter
		$lists['state'] = JHTML::_('grid.state', $filter_state, 'Published', 'Unpublished', 'Archived');

		// table ordering
		$lists['order_Dir']	= $filter_order_Dir;
		$lists['order']		= $filter_order;

		// search filter
		$lists['search'] = $search;

		ContentView::showContent($rows, $lists, $pagination, $redirect);
	}

	/**
	* Shows a list of archived articles
	* @param int The section id
	*/
	function viewArchive()
	{
		global $mainframe;

		// Initialize variables
		$db						=& JFactory::getDBO();

		$sectionid				= JRequest::getVar( 'sectionid', 0, '', 'int' );
		$option					= JRequest::getCmd( 'option' );

		$filter_order			= $mainframe->getUserStateFromRequest("$option.$sectionid.viewarchive.filter_order",		'filter_order',		'sectname',	'cmd');
		$filter_order_Dir		= $mainframe->getUserStateFromRequest("$option.$sectionid.viewarchive.filter_order_Dir",	'filter_order_Dir',	'',			'word');
		$catid					= $mainframe->getUserStateFromRequest("$option.$sectionid.viewarchive.catid",				'catid',			0,			'int');
		$limit					= $mainframe->getUserStateFromRequest('global.list.limit',									'limit',			$mainframe->getCfg('list_limit'), 'int');
		$limitstart				= $mainframe->getUserStateFromRequest("$option.$sectionid.viewarchive.limitstart",			'limitstart',		0,			'int');
		$filter_authorid		= $mainframe->getUserStateFromRequest("$option.$sectionid.viewarchive.filter_authorid",		'filter_authorid',	0,			'int');
		$filter_sectionid		= $mainframe->getUserStateFromRequest("$option.$sectionid.viewarchive.filter_sectionid",	'filter_sectionid',	0,			'int');
		$search					= $mainframe->getUserStateFromRequest("$option.$sectionid.viewarchive.search",				'search',			'',			'string');
		$search					= JString::strtolower($search);
		$redirect				= $sectionid;

		// A section id of zero means view all articles [all sections]
		if ($sectionid == 0)
		{
			$where = array ('c.state 	= -1', 'c.catid	= cc.id', 'cc.section = s.id', 's.scope  	= "content"');
			$filter = ' , #__sections AS s WHERE s.id = c.section';
			$all = 1;
		}
		else
		{
			 //We are viewing a specific section
			$where = array ('c.state 	= -1', 'c.catid	= cc.id', 'cc.section	= s.id', 's.scope	= "content"', 'c.sectionid= '.(int) $sectionid);
			$filter = ' WHERE section = '.$db->Quote($sectionid);
			$all = NULL;
		}

		// Section filter
		if ($filter_sectionid > 0)
		{
			$where[] = 'c.sectionid = ' . (int) $filter_sectionid;
		}
		// Author filter
		if ($filter_authorid > 0)
		{
			$where[] = 'c.created_by = ' . (int) $filter_authorid;
		}
		// Category filter
		if ($catid > 0)
		{
			$where[] = 'c.catid = ' . (int) $catid;
		}
		// Keyword filter
		if ($search)
		{
			$where[] = 'LOWER( c.title ) LIKE '.$db->Quote( '%'.$db->getEscaped( $search, true ).'%', false );
		}

		// TODO: Sanitise $filter_order
		$filter_order_Dir = ($filter_order_Dir == 'ASC' ? 'ASC' : 'DESC');
		$orderby = ' ORDER BY '. $filter_order .' '. $filter_order_Dir .', sectname, cc.name, c.ordering';
		$where = (count($where) ? ' WHERE '.implode(' AND ', $where) : '');

		// get the total number of records
		$query = 'SELECT COUNT(*)' .
				' FROM #__content AS c' .
				' LEFT JOIN #__categories AS cc ON cc.id = c.catid' .
				' LEFT JOIN #__sections AS s ON s.id = c.sectionid' .
				$where;
		$db->setQuery($query);
		$total = $db->loadResult();

		jimport('joomla.html.pagination');
		$pagination = new JPagination($total, $limitstart, $limit);

		$query = 'SELECT c.*, g.name AS groupname, cc.name, v.name AS author, s.title AS sectname' .
				' FROM #__content AS c' .
				' LEFT JOIN #__categories AS cc ON cc.id = c.catid' .
				' LEFT JOIN #__sections AS s ON s.id = c.sectionid' .
				' LEFT JOIN #__groups AS g ON g.id = c.access' .
				' LEFT JOIN #__users AS v ON v.id = c.created_by' .
				$where .
				$orderby;
		$db->setQuery($query, $pagination->limitstart, $pagination->limit);
		$rows = $db->loadObjectList();

		// If there is a database query error, throw a HTTP 500 and exit
		if ($db->getErrorNum())
		{
			JError::raiseError( 500, $db->stderr() );
			return false;
		}

		// get list of categories for dropdown filter
		$query = 'SELECT c.id AS value, c.title AS text' .
				' FROM #__categories AS c' .
				$filter .
				' ORDER BY c.ordering';
		$lists['catid'] = ContentHelper::filterCategory($query, $catid);

		// get list of sections for dropdown filter
		$javascript = 'onchange="document.adminForm.submit();"';
		$lists['sectionid'] = JAdminMenus::SelectSection('filter_sectionid', $filter_sectionid, $javascript);

		$section = & JTable::getInstance('section');
		$section->load($sectionid);

		// get list of Authors for dropdown filter
		$query = 'SELECT c.created_by, u.name' .
				' FROM #__content AS c' .
				' INNER JOIN #__sections AS s ON s.id = c.sectionid' .
				' LEFT JOIN #__users AS u ON u.id = c.created_by' .
				' WHERE c.state = -1' .
				' GROUP BY u.name' .
				' ORDER BY u.name';
		$db->setQuery($query);
		$authors[] = JHTML::_('select.option', '0', '- '.JText::_('Select Author').' -', 'created_by', 'name');
		$authors = array_merge($authors, $db->loadObjectList());
		$lists['authorid'] = JHTML::_('select.genericlist',  $authors, 'filter_authorid', 'class="inputbox" size="1" onchange="document.adminForm.submit( );"', 'created_by', 'name', $filter_authorid);

		// table ordering
		$lists['order_Dir']	= $filter_order_Dir;
		$lists['order']		= $filter_order;

		// search filter
		$lists['search'] = $search;

		ContentView::showArchive($rows, $section, $lists, $pagination, $option, $all, $redirect);
	}

	/**
	* Compiles information to add or edit the record
	*
	* @param database A database connector object
	* @param integer The unique id of the record to edit (0 if new)
	* @param integer The id of the content section
	*/
	function editContent($edit)
	{
		global $mainframe;

		// Initialize variables
		$db				= & JFactory::getDBO();
		$user			= & JFactory::getUser();

		$cid			= JRequest::getVar( 'cid', array(0), '', 'array' );
		JArrayHelper::toInteger($cid, array(0));
		$id				= JRequest::getVar( 'id', $cid[0], '', 'int' );
		$option			= JRequest::getCmd( 'option' );
		$nullDate		= $db->getNullDate();
		$contentSection	= '';
		$sectionid		= 0;

		// Create and load the content table row
		$row = & JTable::getInstance('content');
		if($edit)
			$row->load($id);

		if ($id) {
			$sectionid = $row->sectionid;
			if ($row->state < 0) {
				$mainframe->redirect('index.php?option=com_content', JText::_('You cannot edit an archived item'));
			}
		}

		// A sectionid of zero means grab from all sections
		if ($sectionid == 0) {
			$where = ' WHERE section NOT LIKE "%com_%"';
		} else {
			// Grab from the specific section
			$where = ' WHERE section = '. $db->Quote( $sectionid );
		}

		/*
		 * If the item is checked out we cannot edit it... unless it was checked
		 * out by the current user.
		 */
		if ( JTable::isCheckedOut($user->get ('id'), $row->checked_out ))
		{
			$msg = JText::sprintf('DESCBEINGEDITTED', JText::_('The item'), $row->title);
			$mainframe->redirect('index.php?option=com_content', $msg);
		}

		if ($id)
		{
			$row->checkout($user->get('id'));

			if (trim($row->images)) {
				$row->images = explode("\n", $row->images);
			} else {
				$row->images = array ();
			}

			$query = 'SELECT name' .
					' FROM #__users'.
					' WHERE id = '. (int) $row->created_by;
			$db->setQuery($query);
			$row->creator = $db->loadResult();

			// test to reduce unneeded query
			if ($row->created_by == $row->modified_by) {
				$row->modifier = $row->creator;
			} else {
				$query = 'SELECT name' .
						' FROM #__users' .
						' WHERE id = '. (int) $row->modified_by;
				$db->setQuery($query);
				$row->modifier = $db->loadResult();
			}

			$query = 'SELECT COUNT(content_id)' .
					' FROM #__content_frontpage' .
					' WHERE content_id = '. (int) $row->id;
			$db->setQuery($query);
			$row->frontpage = $db->loadResult();
			if (!$row->frontpage) {
				$row->frontpage = 0;
			}
		}
		else
		{
			if (!$sectionid && JRequest::getInt('filter_sectionid')) {
				$sectionid =JRequest::getInt('filter_sectionid');
			}

			if (JRequest::getInt('catid'))
			{
				$row->catid	 = JRequest::getInt('catid');
				$category 	 = & JTable::getInstance('category');
				$category->load($row->catid);
				$sectionid = $category->section;
			} else {
				$row->catid = NULL;
			}
			$createdate =& JFactory::getDate();
			$row->sectionid = $sectionid;
			$row->version = 0;
			$row->state = 1;
			$row->ordering = 0;
			$row->images = array ();
			$row->publish_up = $createdate->toUnix();
			$row->publish_down = JText::_('Never');
			$row->creator = '';
			$row->created = $createdate->toUnix();
			$row->modified = $nullDate;
			$row->modifier = '';
			$row->frontpage = 0;

		}

		$javascript = "onchange=\"changeDynaList( 'catid', sectioncategories, document.adminForm.sectionid.options[document.adminForm.sectionid.selectedIndex].value, 0, 0);\"";

		$query = 'SELECT s.id, s.title' .
				' FROM #__sections AS s' .
				' ORDER BY s.ordering';
		$db->setQuery($query);

		$sections[] = JHTML::_('select.option', '-1', '- '.JText::_('Select Section').' -', 'id', 'title');
		$sections[] = JHTML::_('select.option', '0', JText::_('Uncategorized'), 'id', 'title');
		$sections = array_merge($sections, $db->loadObjectList());
		$lists['sectionid'] = JHTML::_('select.genericlist',  $sections, 'sectionid', 'class="inputbox" size="1" '.$javascript, 'id', 'title', intval($row->sectionid));

		foreach ($sections as $section)
		{
			$section_list[] = (int) $section->id;
			// get the type name - which is a special category
			if ($row->sectionid) {
				if ($section->id == $row->sectionid) {
					$contentSection = $section->title;
				}
			} else {
				if ($section->id == $sectionid) {
					$contentSection = $section->title;
				}
			}
		}

		$sectioncategories = array ();
		$sectioncategories[-1] = array ();
		$sectioncategories[-1][] = JHTML::_('select.option', '-1', JText::_( 'Select Category' ), 'id', 'title');
		$section_list = implode('\', \'', $section_list);

		$query = 'SELECT id, title, section' .
				' FROM #__categories' .
				' WHERE section IN ( \''.$section_list.'\' )' .
				' ORDER BY ordering';