added in ability to view diffs from the history page

src/bootstrap.php

@@ -58,6 +58,7 @@
 			case 'WikiPageContentView':
 			case 'PanaceaWikiView':
 			case 'WikiRevisionHistoryView':
+			case 'WikiRevisionDiffView':
 				$file = "$path/lib/views/wiki/$className.php";
 				break;
 			

src/lib/views/wiki/WikiPageHistoryView.php

@@ -38,7 +38,7 @@
 		public function __construct(WikiPageObject $page, Collection $revisions, $action = null, $priority = 0)  {
 			parent::__construct($page, $action, $priority);
 			
-			$this->addView(new WikiRevisionHistoryView($revisions, 1));
+			$this->addView(new WikiRevisionHistoryView($revisions, $this->page->page->page_name, 1));
 		}
 		
 		/**

src/lib/views/wiki/WikiPageView.php

@@ -39,6 +39,8 @@
 			
 			$this->addView(new WikiPageMenuView($page, $action, 1));
 			
+			$vendor = MySql::getInstance('wiki', 'localhost', 'root', 'layne', 'wiki');
+			
 			switch ($this->action) {
 				case 'new':
 					$this->addView(new WikiPageNewView($pageName, 2));
@@ -48,7 +50,6 @@
 					break;
 				case 'history':
 					//get all revisions for the page
-					$vendor    = MySql::getInstance('wiki', 'localhost', 'root', 'layne', 'wiki');
 					$revisions = WikiHistory::getRevisionsForPage($vendor, $this->page->page);
 					$this->addView(new WikiPageHistoryView($this->page, $revisions, $this->action, 2));
 					break;
@@ -56,7 +57,20 @@
 					$this->addView(new WikiPageStatsView($this->page, $this->action, 2));
 					break;
 				default:
-					$this->addView(new WikiPageContentView($this->page, $this->action, 2));
+					//check for diffs: WikiPage?diff[oldRev,newRev]
+					if (preg_match('/^diff\[(\d+),(\d+)\]$/', $this->action, $matches)) {
+						$oldRevision = (int)$matches[1];
+						$newRevision = (int)$matches[2];
+						
+						$diff = $this->page->compareRevisions($oldRevision, $newRevision, $vendor);
+						//echo '<pre>'; var_dump($diff); echo '</pre>'; exit;
+						
+						$this->addView(new WikiRevisionDiffView($this->page, $diff, $this->action, 2));
+					}
+					else {
+						//bogus/non-existent action, so just display the normal content
+						$this->addView(new WikiPageContentView($this->page, $this->action, 2));
+					}
 					break;
 			}
 			

src/lib/views/wiki/WikiRevisionDiffView.php

@@ -0,0 +1,67 @@
+<?php
+
+	/**
+	 * WikiPageHistoryView
+	 *
+	 * @package    Panacea
+	 * @subpackage Views
+	 * @author     Tommy Montgomery
+	 * @since      2008-10-18
+	 */
+
+	/** Bootstraps the NowhereConcave framework */
+	require_once 'NowhereConcave/bootstrap.php';
+
+	/**
+	 * View for a wiki page's history
+	 *
+	 * @package    Panacea
+	 * @subpackage Views
+	 * @author     Tommy Montgomery
+	 * @since      2008-10-18
+	 */
+	class WikiRevisionDiffView extends PanaceaWikiView {
+		
+		protected $diff;
+		
+		/**
+		 * Creates a new {@link WikiPageHistoryView}
+		 *
+		 * @author Tommy Montgomery
+		 * @since  2008-10-21
+		 * @uses   addView()
+		 * @uses   WikiRevisionHistoryView
+		 *
+		 * @param WikiPageObject $page      The wiki page to display
+		 * @param WikiDiff       $diff      The diff between the two revisions
+		 * @param string         $action    The action to take
+		 * @param int            $priority  The priority of the view
+		 */
+		public function __construct(WikiPageObject $page, WikiDiff $diff, $action = null, $priority = 0)  {
+			parent::__construct($page, $action, $priority);
+			
+			$this->diff = $diff;
+		}
+		
+		/**
+		 * Renders the view
+		 *
+		 * @author Tommy Montgomery
+		 * @since  2008-10-21
+		 */
+		public function send() { ?>
+				
+				<h1>Diff r<?php echo $this->diff->oldRevision->revision; ?>/r<?php echo $this->diff->newRevision->revision;?></h1>
+				
+				<div class="wikidiff">
+					<pre><?php echo $this->diff->getDiff(); ?></pre>
+				</div>
+				
+		<?php
+			
+			parent::send();
+		}
+		
+	}
+
+?>

src/lib/views/wiki/WikiRevisionHistoryView.php

@@ -27,6 +27,13 @@
 		 */
 		protected $revisions;
 		
+		/**
+		 * Name of the page
+		 *
+		 * @var string
+		 */
+		protected $pageName;
+		
 		/**
 		 * Creates a new {@link WikiRevisionHistoryView}
 		 *
@@ -34,9 +41,10 @@
 		 * @since  2008-10-21
 		 *
 		 * @param Collection $revisions The revisions to display
+		 * @param string     $pageName  The name of the page
 		 * @param int        $priority  The priority of the view
 		 */
-		public function __construct(Collection $revisions, $priority = 0)  {
+		public function __construct(Collection $revisions, $pageName, $priority = 0)  {
 			parent::__construct($priority);
 			
 			if ($revisions->type !== 'WikiHistory') {
@@ -44,6 +52,7 @@
 			}
 			
 			$this->revisions = $revisions;
+			$this->pageName  = $pageName;
 		}
 		
 		/**
@@ -60,21 +69,32 @@
 						<th>Date</th>
 						<th>Message</th>
 						<th>Author</th>
-						<th>Affected Lines</th>
+						<th>Diff</th>
 					</tr>
 					
 					<?php
 						
-						foreach ($this->revisions as $revision => $history) { ?>
+						$previous = null;
-						
+						foreach ($this->revisions as $revision => $history) { 
-						<tr>
+							$affectedBytes = 'n/a';
-							<td><?php echo $history->revision; ?></td>
+							if ($previous !== null) {
-							<td><?php echo $history->created; ?></td>
+								$link          = $this->wikiPath . '/' . $this->pageName;
-							<td>Not implemented yet</td>
+								$link         .= '?diff[' . $previous->revision . ',' . $revision .']';
-							<td><?php echo $history->created_user_id; ?></td>
+								$affectedBytes = strlen($history->wikitext) - strlen($previous->wikitext);
-							<td>Not implemented yet</td>
+								$affectedBytes = '<a href="' . $link .'">' . $affectedBytes . ' bytes</a>';
-						</tr>
+							}
-						
+							
+							$previous = $history;
+						?>
+					
+					<tr>
+						<td><?php echo $history->revision; ?></td>
+						<td><?php echo $history->created; ?></td>
+						<td><?php echo $history->message; ?></td>
+						<td><?php echo $history->created_user_id; ?></td>
+						<td><?php echo $affectedBytes; ?></td>
+					</tr>
+					
 						<?php 
 						
 						}