cached noticeboard preview on dashboard

mod.php

@@ -86,6 +86,8 @@
 			$fieldset['Boards'] .= ulBoards();
 			
 			if(hasPermission($config['mod']['noticeboard'])) {
+				if(!$config['cache']['enabled'] || !($fieldset['Noticeboard'] = cache::get('noticeboard_preview'))) {
+				
 					$query = prepare("SELECT `noticeboard`.*, `username` FROM `noticeboard` LEFT JOIN `mods` ON `mods`.`id` = `mod` ORDER BY `id` DESC LIMIT :limit");
 					$query->bindValue(':limit', $config['mod']['noticeboard_dashboard'], PDO::PARAM_INT);
 					$query->execute() or error(db_error($query));
@@ -130,7 +132,12 @@
 					'</a></li>';
 				
 					$fieldset['Noticeboard'] .= '<li><a href="?/news">' . _('News') . '</a></li>';
+				
+					if($config['cache']['enabled'])
+						cache::set('noticeboard_preview', $fieldset['Noticeboard']);
 				}
+			}
+			
 			
 			if(hasPermission($config['mod']['reports'])) {
 				$fieldset['Administration'] .= 	'<li><a href="?/reports">' . _('Report queue') . '</a></li>';
@@ -543,6 +550,9 @@
 			$query->bindValue(':id', $match[1], PDO::PARAM_INT);
 			$query->execute() or error(db_error($query));
 			
+			if($config['cache']['enabled'])
+				cache::delete('noticeboard_preview');
+			
 			header('Location: ?/noticeboard', true, $config['redirect_http']);
 		} elseif(preg_match('/^\/noticeboard$/', $query)) {
 			if(!hasPermission($config['mod']['noticeboard'])) error($config['error']['noaccess']);
@@ -559,6 +569,9 @@
 					$query->bindValue(':body', $_POST['body']);
 					$query->execute() or error(db_error($query));
 					
+					if($config['cache']['enabled'])
+						cache::delete('noticeboard_preview');
+					
 					header('Location: ?/noticeboard#' . $pdo->lastInsertId(), true, $config['redirect_http']);
 			} else {