| alpha--controller

# Source for file ViewArticle.php Documentation is available at ViewArticle.php <?php // include the config file if(!isset($config)) { require_once '../util/AlphaConfig.inc'; $config = AlphaConfig::getInstance(); } require_once $config->get('sysRoot').'alpha/view/AlphaView.inc'; require_once $config->get('sysRoot').'alpha/controller/AlphaController.inc'; require_once $config->get('sysRoot').'alpha/model/ArticleObject.inc'; require_once $config->get('sysRoot').'alpha/util/InputFilter.inc'; require_once $config->get('sysRoot').'alpha/util/helpers/AlphaValidator.inc'; require_once $config->get('sysRoot').'alpha/controller/AlphaControllerInterface.inc'; /** * * Controller used to display a Markdown version of an article * * @package alpha::controller * @since 1.0 * @author John Collins <dev@alphaframework.org> * @version $Id: ViewArticle.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 ViewArticle extends AlphaController implements AlphaControllerInterface { /** * The article to be rendered * * @var ArticleObject * @since 1.0 */ protected $BO; /** * 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('ViewArticle'); self::$logger->debug('>>__construct()'); global $config; // ensure that the super class constructor is called, indicating the rights group parent::__construct('Public'); $this->BO = new ArticleObject(); self::$logger->debug('<<__construct'); } /** * Handle GET requests * * @param array $params * @since 1.0 * @throws ResourceNotFoundException */ public function doGET($params) { global $config; try{ // check to see if we need to force a re-direct to the mod_rewrite alias URL for the article if($config->get('sysForceModRewriteURLs') && basename($_SERVER['PHP_SELF']) == 'ViewArticle.php') { // set the correct HTTP header for the response header('HTTP/1.1 301 Moved Permanently'); header('Location: '.$this->BO->get('URL')); // we're done here exit; } // load the business object (BO) definition if (isset($params['oid']) && AlphaValidator::isInteger($params['oid'])) { $this->BO->load($params['oid']); $BOView = AlphaView::getInstance($this->BO); // set up the title and meta details $this->setTitle($this->BO->get('title')); $this->setDescription($this->BO->get('description')); echo AlphaView::displayPageHead($this); echo $BOView->markdownView(); }else{ throw new IllegalArguementException('No article available to view!'); } }catch(IllegalArguementException $e) { self::$logger->error($e->getMessage()); throw new ResourceNotFoundException($e->getMessage()); }catch(BONotFoundException $e) { self::$logger->warn($e->getMessage()); throw new ResourceNotFoundException('The article that you have requested cannot be found!'); } echo AlphaView::displayPageFoot($this); } /** * Callback used to inject ArticleObject headerContent into the page * * @return string * @since 1.0 */ public function during_displayPageHead_callback() { return $this->BO->get('headerContent'); } /** * Callback that inserts the CMS level header * * @return string * @since 1.0 */ public function insert_CMSDisplayStandardHeader_callback() { global $config; $html = ''; if($config->get('sysCMSDisplayStandardHeader')) { $html.= '<p><a href="'.$config->get('sysURL').'">'.$config->get('sysTitle').'</a> &nbsp; &nbsp;'; $html.= 'Date Added: <em>'.$this->BO->getCreateTS()->getDate().'</em> &nbsp; &nbsp;'; $html.= 'Last Updated: <em>'.$this->BO->getUpdateTS()->getDate().'</em> &nbsp; &nbsp;'; $html.= 'Revision: <em>'.$this->BO->getVersion().'</em></p>'; } $html.= $config->get('sysCMSHeader'); return $html; } /** * Callback used to render footer content, including comments, votes and print/PDF buttons when * enabled to do so. * * @return string * @since 1.0 */ public function before_displayPageFoot_callback() { global $config; $html = $this->renderComments(); $rating = $this->BO->getArticleScore(); if($config->get('sysCMSDisplayTags')) { $tags = $this->BO->getPropObject('tags')->getRelatedObjects(); if(count($tags) > 0) { $html .= '<p>Tags:'; foreach($tags as $tag) $html .= ' <a href="'.$config->get('sysURL').'search/q/'.$tag->get('content').'">'.$tag->get('content').'</a>'; $html .= '</p>'; } } if($config->get('sysCMSDisplayVotes')) { $votes = $this->BO->getArticleVotes(); $html .= '<p>Average Article User Rating: <strong>'.$rating.'</strong> out of 10 (based on <strong>'.count($votes).'</strong> votes)</p>'; } if(!$this->BO->checkUserVoted() && $config->get('sysCMSVotingAllowed')) { $html .= '<form action="'.$_SERVER['REQUEST_URI'].'" method="post">'; $html .= '<p>Please rate this article from 1-10 (10 being the best):' . '<select name="user_vote">' . '<option value="1">1' . '<option value="2">2' . '<option value="3">3' . '<option value="4">4' . '<option value="5">5' . '<option value="6">6' . '<option value="7">7' . '<option value="8">8' . '<option value="9">9' . '<option value="10">10' . '</select></p>&nbsp;&nbsp;'; $temp = new Button('submit','Vote!','voteBut'); $html .= $temp->render(); $html .= AlphaView::renderSecurityFields(); $html .= '<form>'; } AlphaDAO::disconnect(); $html .= '&nbsp;&nbsp;'; $temp = new Button("window.open('".$this->BO->get('printURL')."')",'Open Printer Version','printBut'); $html .= $temp->render(); $html .= '&nbsp;&nbsp;'; if($config->get('sysAllowPDFVersions')) { $temp = new Button("document.location = '".FrontController::generateSecureURL("act=ViewArticlePDF&title=".$this->BO->get("title"))."';",'Open PDF Version','pdfBut'); $html .= $temp->render(); } // render edit button for admins only if (isset($_SESSION['currentUser']) && $_SESSION['currentUser']->inGroup('Admin')) { $html .= '&nbsp;&nbsp;'; $button = new Button("document.location = '".FrontController::generateSecureURL('act=Edit&bo='.get_class($this->BO).'&oid='.$this->BO->getID())."'",'Edit','editBut'); $html .= $button->render(); } if($config->get('sysCMSDisplayStandardFooter')) { $html .= '<p>Article URL: <a href="'.$this->BO->get('URL').'">'.$this->BO->get('URL').'</a><br>'; $html .= 'Title: '.$this->BO->get('title').'<br>'; $html .= 'Author: '.$this->BO->get('author').'</p>'; } $html .= $config->get('sysCMSFooter'); return $html; } /** * Method to handle POST requests * * @param array $params * @since 1.0 */ public function doPOST($params) { global $config; try { // check the hidden security fields before accepting the form POST data if(!$this->checkSecurityFields()) throw new SecurityException('This page cannot accept post data from remote servers!'); if(isset($params['voteBut']) && !$this->BO->checkUserVoted()) { $vote = new ArticleVoteObject(); if(isset($params['oid'])) { $vote->set('articleOID', $params['oid']); }else{ // load article by title? if (isset($params['title'])) { $title = str_replace('_', ' ', $params['title']); }else{ throw new IllegalArguementException('Could not load the article as a title or OID was not supplied!'); } $this->BO = new ArticleObject(); $this->BO->loadByAttribute('title', $title); $vote->set('articleOID', $this->BO->getOID()); } $vote->set('personOID', $_SESSION['currentUser']->getID()); $vote->set('score', $params['user_vote']); try { $vote->save(); AlphaDAO::disconnect(); $this->setStatusMessage(AlphaView::displayUpdateMessage('Thank you for rating this article!')); $this->doGET($params); }catch (FailedSaveException $e) { self::$logger->error($e->getMessage()); } } if(isset($params['createBut'])) { $comment = new ArticleCommentObject(); // populate the transient object from post data $comment->populateFromPost(); // filter the comment before saving $comment->set('content', InputFilter::encode($comment->get('content'))); try { $success = $comment->save(); AlphaDAO::disconnect(); $this->setStatusMessage(AlphaView::displayUpdateMessage('Thank you for your comment!')); $this->doGET($params); }catch (FailedSaveException $e) { self::$logger->error($e->getMessage()); } } if(isset($params['saveBut'])) { $comment = new ArticleCommentObject(); try { $comment->load($params['article_comment_id']); // re-populates the old object from post data $comment->populateFromPost(); $success = $comment->save(); AlphaDAO::disconnect(); $this->setStatusMessage(AlphaView::displayUpdateMessage('Your comment has been updated.')); $this->doGET($params); }catch (AlphaException $e) { self::$logger->error($e->getMessage()); } } }catch(SecurityException $e) { self::$logger->warn($e->getMessage()); throw new ResourceNotAllowedException($e->getMessage()); } } /** * Method for displaying the user comments for the article. * * @return string * @since 1.0 */ private function renderComments() { global $config; $html = ''; $comments = $this->BO->getArticleComments(); $comment_count = count($comments); if($config->get('sysCMSDisplayComments') && $comment_count > 0) { $html .= '<h2>There are ['.$comment_count.'] user comments for this article</h2>'; ob_start(); for($i = 0; $i < $comment_count; $i++) { $view = AlphaView::getInstance($comments[$i]); $view->markdownView(); } $html.= ob_get_clean(); } if(isset($_SESSION['currentUser']) && $config->get('sysCMSCommentsAllowed')) { $comment = new ArticleCommentObject(); $comment->set('articleOID', $this->BO->getID()); ob_start(); $view = AlphaView::getInstance($comment); $view->createView(); $html.= ob_get_clean(); } return $html; } } // now build the new controller if(basename($_SERVER['PHP_SELF']) == 'ViewArticle.php') { $controller = new ViewArticle(); if(!empty($_POST)) { $controller->doPOST($_REQUEST); }else{ $controller->doGET($_GET); } } ?> Documentation generated on Thu, 17 Mar 2011 16:45:05 +0000 by phpDocumentor 1.4.3