From 60fb79ac97869b8333621380828dd1b84a069990 Mon Sep 17 00:00:00 2001
From: Rohit Bhute
Date: Sun, 17 Mar 2013 13:40:38 +0530
Subject: add feature to show a subset of graphs from a plugin on overview page

---
 conf/config.php      |  2 ++
 host.php             |  4 +++-
 inc/collectd.inc.php | 13 ++++++++++++-
 3 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/conf/config.php b/conf/config.php
index b2fdc78..6755582 100644
--- a/conf/config.php
+++ b/conf/config.php
@@ -18,6 +18,8 @@ $CONFIG['rrdtool_opts'] = '';
 # default plugins to show on host page
 $CONFIG['overview'] = array('load', 'cpu', 'memory', 'swap');
 
+$CONFIG['overview_filter']['interface'] = array('ti' => 'eth0', 't' => 'if_octets');
+
 # default plugins time range
 $CONFIG['time_range']['default'] = 86400;
 $CONFIG['time_range']['uptime']  = 31536000;
diff --git a/host.php b/host.php
index 71d786a..363e9d5 100644
--- a/host.php
+++ b/host.php
@@ -22,11 +22,13 @@ if(!$plugins) {
 
 plugins_list($host, $selected_plugins);
 
+$overview = empty($plugin) ? true : false;
+
 echo '<div class="graphs">';
 foreach ($selected_plugins as $selected_plugin) {
 	if (in_array($selected_plugin, $plugins)) {
 		plugin_header($host, $selected_plugin);
-		graphs_from_plugin($host, $selected_plugin);
+		graphs_from_plugin($host, $selected_plugin, $overview);
 	}
 }
 echo '</div>';
diff --git a/inc/collectd.inc.php b/inc/collectd.inc.php
index 56c5a2d..e8f3662 100644
--- a/inc/collectd.inc.php
+++ b/inc/collectd.inc.php
@@ -147,14 +147,25 @@ function plugin_sort($data) {
 }
 
 # generate graph url's for a plugin of a host
-function graphs_from_plugin($host, $plugin) {
+function graphs_from_plugin($host, $plugin, $overview=false) {
 	global $CONFIG;
 
 	$plugindata = collectd_plugindata($host, $plugin);
 	$plugindata = group_plugindata($plugindata);
 	$plugindata = plugin_sort($plugindata);
 
+	$f = array();
+
+	if ($overview == true && isset($CONFIG['overview_filter'][$plugin])) {
+		$f = $CONFIG['overview_filter'][$plugin];
+	}
+
 	foreach ($plugindata as $items) {
+
+		if (!empty($f) && ($f !== array_intersect_assoc($f, $items))) {
+			continue;
+		}
+
 		$items['h'] = $host;
 
 		$time = array_key_exists($plugin, $CONFIG['time_range'])
-- 
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