| alpha--controller

# Source for file ViewFeed.php Documentation is available at ViewFeed.php <?php // include the config file if(!isset($config)) { require_once '../util/AlphaConfig.inc'; $config = AlphaConfig::getInstance(); } require_once $config->get('sysRoot').'alpha/controller/AlphaController.inc'; require_once $config->get('sysRoot').'alpha/util/feeds/RSS2.inc'; require_once $config->get('sysRoot').'alpha/util/feeds/RSS.inc'; require_once $config->get('sysRoot').'alpha/util/feeds/Atom.inc'; require_once $config->get('sysRoot').'alpha/util/LogFile.inc'; require_once $config->get('sysRoot').'alpha/controller/AlphaControllerInterface.inc'; /** * Controller for viewing news feeds * * @package alpha::controller * @since 1.0 * @author John Collins <dev@alphaframework.org> * @version $Id: ViewFeed.php 1341 2011-03-17 15:02:02Z johnc $ * @license http://www.opensource.org/licenses/bsd-license.php The BSD License * @copyright Copyright (c) 2011, John Collins (founder of Alpha Framework). * All rights reserved. * * <pre> * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the * following conditions are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the * following disclaimer in the documentation and/or other * materials provided with the distribution. * * Neither the name of the Alpha Framework nor the names * of its contributors may be used to endorse or promote * products derived from this software without specific * prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * </pre> * */ class ViewFeed extends AlphaController implements AlphaControllerInterface { /** * The name of the BO to render as a feed * * @var string * @since 1.0 */ private $BOName; /** * The type of feed to render (RSS, RSS2 or Atom) * * @var string * @since 1.0 */ private $type; /** * The title of the feed * * @var string * @since 1.0 */ protected $title; /** * The description of the feed * * @var string * @since 1.0 */ protected $description; /** * The BO to feed field mappings * * @var array * @since 1.0 */ protected $fieldMappings; /** * The BO field name to sort the feed by (descending), default is OID * * @var string * @since 1.0 */ private $sortBy = 'OID'; /** * Trace logger * * @var Logger * @since 1.0 */ private static $logger = null; /** * constructor to set up the object * * @since 1.0 */ public function __construct() { self::$logger = new Logger('ViewFeed'); self::$logger->debug('>>__construct()'); global $config; // ensure that the super class constructor is called, indicating the rights group parent::__construct('Public'); self::$logger->debug('<<__construct'); } /** * Handle GET requests * * @param array $params * @since 1.0 * @throws ResourceNotFoundException */ public function doGET($params) { self::$logger->debug('>>doGET($params=['.var_export($params, true).'])'); global $config; try { if (isset($params['bo'])) { $BOName = $params['bo']; }else{ throw new IllegalArguementException('BO not specified to generate feed!'); } if (isset($params['type'])) { $type = $params['type']; }else{ throw new IllegalArguementException('No feed type specified to generate feed!'); } $this->BOName = $BOName; $this->type = $type; $this->setup(); switch($type) { case 'RSS2': $feed = new RSS2($BOName, $this->title, str_replace('&', '&amp;', $_SERVER['REQUEST_URI']), $this->description); $feed->setFieldMappings($this->fieldMappings[0], $this->fieldMappings[1], $this->fieldMappings[2], $this->fieldMappings[3]); break; case 'RSS': $feed = new RSS($BOName, $this->title, str_replace('&', '&amp;', $_SERVER['REQUEST_URI']), $this->description); $feed->setFieldMappings($this->fieldMappings[0], $this->fieldMappings[1], $this->fieldMappings[2], $this->fieldMappings[3]); break; case 'Atom': $feed = new Atom($BOName, $this->title, str_replace('&', '&amp;', $_SERVER['REQUEST_URI']), $this->description); $feed->setFieldMappings($this->fieldMappings[0], $this->fieldMappings[1], $this->fieldMappings[2], $this->fieldMappings[3], $this->fieldMappings[4]); if($config->get('sysAtomFeedAuthor') != '') $feed->addAuthor($config->get('sysAtomFeedAuthor')); break; } // now add the twenty last items (from newest to oldest) to the feed, and render $feed->loadBOs(20, $this->sortBy); echo $feed->render(); // log the request for this news feed $feedLog = new LogFile($config->get('sysRoot').'logs/feeds.log'); $feedLog->writeLine(array($this->BOName, $this->type, date("Y-m-d H:i:s"), $_SERVER['HTTP_USER_AGENT'], $_SERVER['REMOTE_ADDR'])); }catch(IllegalArguementException $e) { self::$logger->error($e->getMessage()); throw new ResourceNotFoundException($e->getMessage()); } self::$logger->debug('<<__doGet'); } /** * Method to handle POST requests * * @param array $params * @since 1.0 */ public function doPOST($params) { self::$logger->debug('>>doPOST($params=['.var_export($params, true).'])'); self::$logger->debug('<<doPOST'); } /** * setup the feed title, field mappings and description based on common BO types */ protected function setup() { self::$logger->debug('>>setup()'); global $config; // set up some BO to feed fields mappings based on common BO types switch($this->BOName) { case 'ArticleObject': $this->title = 'Latest articles from '.$config->get('sysTitle'); $this->description = 'News feed containing all of the details on the latest articles published on '.$config->get('sysTitle').'.'; $this->fieldMappings = array('title', 'URL', 'description', 'created_ts', 'OID'); $this->sortBy = 'created_ts'; break; case 'NewsObject': $this->title = 'Latest news from '.$config->get('sysTitle'); $this->description = 'News feed containing all of the latest news items from '.$config->get('sysTitle').'.'; $this->fieldMappings = array('title', 'URL', 'content', 'created_ts', 'OID'); break; } self::$logger->debug('<<setup'); } } // now build the new controller if(basename($_SERVER['PHP_SELF']) == 'ViewFeed.php') { $controller = new ViewFeed(); if(!empty($_POST)) { $controller->doPOST($_REQUEST); }else{ $controller->doGET($_GET); } } ?> Documentation generated on Thu, 17 Mar 2011 16:45:10 +0000 by phpDocumentor 1.4.3