"rrdtool" theme for graphing basic stats in development

templates/themes/rrdtool/theme.php

@@ -0,0 +1,59 @@
+<?php
+	require 'info.php';
+	
+	function rrdtool_build($action, $settings) {
+		// Possible values for $action:
+		//	- all (rebuild everything, initialization)
+		//	- news (news has been updated)
+		//	- boards (board list changed)
+		//	- post (a post has been made)
+		
+		$b = new TB_RRDTool();
+		$b->build($action, $settings);
+	}
+	
+	// Wrap functions in a class so they don't interfere with normal Tinyboard operations
+	class TB_RRDTool {
+		public function build($action, $settings) {
+			global $config, $_theme;
+			
+			$this->boards = explode(' ', $settings['boards']);
+			$this->interval = 60;
+			
+			if($action == 'cron') {
+				if(!file_exists($settings['path']))
+					mkdir($settings['path']);
+				
+				foreach($this->boards as &$board) {
+					$file = $settings['path'] . '/' . $board . '.rrd';
+					
+					if(!file_exists($file)) {
+						// Create graph
+						if(!rrd_create($file, Array(
+							'-s ' . $this->interval,
+							'DS:posts:ABSOLUTE:120:0:100000000',
+							'RRA:AVERAGE:0.5:1:2880',
+							'RRA:AVERAGE:0.5:30:672',
+							'RRA:AVERAGE:0.5:120:732',
+							'RRA:AVERAGE:0.5:720:1460')))
+								error('RRDtool failed: ' . htmlentities(rrd_error()));
+					}
+					
+					if($action == 'cron') {
+						$query = prepare(sprintf("SELECT COUNT(*) AS `count` FROM `posts_%s` WHERE `time` >= :time", $board));
+						$query->bindValue(':time', time() - $this->interval, PDO::PARAM_INT):
+						$query->exeucte() or error(db_error($query));
+						$query->fetch();
+						
+						if(!rrd_update($file, Array(
+								'-t',
+								'posts',
+								'N:')))
+								error('RRDtool failed: ' . htmlentities(rrd_error()));
+						}
+				}
+			}
+		}
+	};
+	
+?>