Added simple RSS feed for recent questions

app/controllers/rss_controller.php

@@ -0,0 +1,30 @@
+<?php
+/**
+ * Controller to generate RSS feeds containing the recent questions.
+ *
+ * @author Paul de Raaij <[email protected]>
+ */
+class RssController extends AppController {
+    var $name = 'Rss';
+    var $uses = array('Post', 'User');
+
+    var $components = array('RequestHandler');
+    var $helpers = array('Text'); 
+
+    /**
+     * By default return an rss feed with the latest 15 questions 
+     */
+    public function feeds() {
+
+        if( !$this->RequestHandler->isRss() ) {
+            $this->redirect('/');
+        }
+        $questions = $this->Post->find('all', array('conditions' => array('Post.type' => 'question',), 
+                                                    'order' => 'Post.timestamp DESC',
+                                                    'limit' => 15));
+
+        return $this->set(compact('questions'));
+    }
+}
+
+?>

app/views/layouts/rss/default.ctp

@@ -0,0 +1,5 @@
+<?php
+echo $rss->header();
+
+echo $content_for_layout;
+?>

app/views/posts/display.ctp

@@ -1,4 +1,4 @@
-<?
+<?php
 foreach($questions as $question) { ?>
 <div class="list_question wrapper">
 
@@ -55,20 +55,20 @@ foreach($questions as $question) { ?>
 			</div>
 		</div>
 		<div class="wrapper tags">
-		<? foreach($question['Tag'] as $tag) { ?>
+		<?php foreach($question['Tag'] as $tag) { ?>
 			<div class="tag wrapper">
 				<?=$html->link(
 						$tag['tag'],
 						'/tags/' . $tag['tag']
 					);
 				?>
 			</div>
-		<?  } ?>
+		<?php  } ?>
 		</div>
 	</div>
 
 </div>
-<? }
+<?php }
     if((($end_page - $current) > 3) && $current > 3) { ?>
     <span class="left"><a href="/search/type:<?=$type;?>/page:1/search:<?=$search;?>"><u>1</u>&nbsp;</a></span>
     <span class="left"><a href="/search/type:<?=$type;?>/page:<?=$current-2;?>/search:<?=$search;?>"><u><?=$current-2;?></u>&nbsp;</a></span>
@@ -77,15 +77,23 @@ foreach($questions as $question) { ?>
     <span class="left"><a href="/search/type:<?=$type;?>/page:<?=$current+1;?>/search:<?=$search;?>"><u><?=$current+1;?></u>&nbsp;</a></span>
     <span class="left"><a href="/search/type:<?=$type;?>/page:<?=$current+2;?>/search:<?=$search;?>"><u><?=$current+2;?></u>&nbsp;</a></span>
     <span class="left"><a href="/search/type:<?=$type;?>/page:<?=$end_page;?>/search:<?=$search;?>"><u><?=$end_page;?></u></a></span>
-<? }elseif($current < $end_page) { ?>
+<?php }elseif($current < $end_page) { ?>
     <span class="left">page <?=$current;?> of <a href="/search/type:<?=$type;?>/page:<?=$end_page;?>/search:<?=$search;?>"><?=$end_page;?></a></span>
-<? }else { ?>
+<?php }else { ?>
     <span class="left">page <?=$current;?> of <?=$end_page;?></span>
-<? }
+<?php }
 if(isset($next)) { ?>
     <span class="right"><a href="/search/type:<?=$type;?>/page:<?=$next;?>/search:<?=$search;?>">&nbsp;&nbsp;Next >></a></span>
 <?
 }
 if(isset($previous)) { ?>
     <span class="right"><a href="/search/type:<?=$type;?>/page:<?=$previous;?>/search:<?=$search;?>"><< Previous&nbsp;&nbsp;</a></span>
-<? } ?>
+<?php } ?>
+
+<?php if ( $type == 'recent'): ?>
+    <div class="questionFeed">
+        <a href="<?php echo $html->url(array('controller' => 'rss','action' => 'feeds', 'ext' =>'rss'), true);?>">
+            recent questions feed
+        </a>
+     </div>
+<?php endif; ?>

app/views/rss/rss/feeds.ctp

@@ -0,0 +1,53 @@
+<?php
+ $homeUrl = $html->url($this->webroot, true);
+ $currentDate = new DateTime();
+
+ $feedLink = $html->url(array( 'controller' => 'rss',    
+            'action' => 'feeds', 'ext' => 'rss'), true);
+
+ ?>
+<feed xmlns="http://www.w3.org/2005/Atom">
+    <title type="text">Recent Questions</title>
+    <link rel="self" href="<?php echo $feedLink; ?>" type="application/atom+xml" />
+    <updated><?php echo $currentDate->format(DateTime::ATOM);?></updated>
+    <id><?php echo $homeUrl; ?></id>
+<?php
+
+    foreach ($questions as $question) {
+        $questionLink = $html->url(array( 'controller' => 'posts',    
+            'action' => 'view', 'public_key' => $question['Post']['public_key'], 'title' => Inflector::slug($question['Post']['title'])), true);
+
+        $userLink = $html->url(array( 'controller' => 'users',    
+            'action' => 'view', 'public_key' => $question['User']['public_key'], 'title' => Inflector::slug($question['User']['username'])), true);
+
+        $dateCreated = new DateTime();
+        $dateCreated->setTimestamp($question['Post']['timestamp']);
+
+        $dateModified = new DateTime();
+
+
+        if( $question['Post']['last_edited_timestamp'] == 0 ) {
+            $dateModified = $dateCreated;
+        } else {
+            $dateModified->setTimestamp($question['Post']['last_edited_timestamp']);
+        }
+
+        ?>
+            <entry>
+                <id><?php echo $questionLink; ?></id>
+                <title type="text"><?php echo $question['Post']['title']; ?></title>
+                <author>
+                    <name><?php echo $question['User']['username']; ?></name>
+                    <uri><?php echo $userLink; ?></uri>
+                </author>
+                <link rel="alternate" href="<?php echo $questionLink; ?>" />
+                <published><?php echo $dateCreated->format(DateTime::ATOM);?></published>
+                <updated><?php echo $dateModified->format(DateTime::ATOM);?></updated>
+                <summary type="html">
+                    <?php echo htmlspecialchars($question['Post']['content']); ?>
+                </summary>
+            </entry>
+        <?php 
+    }
+?>
+</feed>

app/webroot/css/skin.css

@@ -89,4 +89,20 @@ a:hover {
 	background-color: #d05024;
 	border-bottom: 1px solid #FFECE5;
 	border-right: 1px solid #FFECE5;
+}
+
+
+/* -------------------------------------------------------------- 
+  RSS Feed
+-------------------------------------------------------------- */
+div.questionFeed { 
+    float: right;
+    margin-top: 50px;
+}
+
+div.questionFeed a {
+    color: #666;
+    background: transparent url(/img/rss.gif) no-repeat;
+    padding-left:  22px;
+    height: 18px;
 }