From c4df472f6c6b52e5f2a0daeb52764f3688492b2c Mon Sep 17 00:00:00 2001
From: Alexander Zobnin <alexanderzobnin@gmail.com>
Date: Sat, 20 Jun 2015 17:35:46 +0300
Subject: [PATCH] Resolved #11 - add scale filter.

---
 zabbix/datasource.js              | 18 ++++++++++++++----
 zabbix/partials/query.editor.html |  9 +++++++++
 2 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/zabbix/datasource.js b/zabbix/datasource.js
index 436410e53..125c8cad1 100644
--- a/zabbix/datasource.js
+++ b/zabbix/datasource.js
@@ -110,10 +110,10 @@ function (angular, _, kbn) {
 
               if ((from < useTrendsFrom) && self.trends) {
                 return self.getTrends(items, from, to)
-                  .then(_.partial(self.handleTrendResponse, items));
+                  .then(_.partial(self.handleTrendResponse, items, target.scale));
               } else {
                 return self.performTimeSeriesQuery(items, from, to)
-                  .then(_.partial(self.handleHistoryResponse, items));
+                  .then(_.partial(self.handleHistoryResponse, items, target.scale));
               }
             }
           });
@@ -190,7 +190,7 @@ function (angular, _, kbn) {
     };
 
 
-    ZabbixAPIDatasource.prototype.handleTrendResponse = function(items, trends) {
+    ZabbixAPIDatasource.prototype.handleTrendResponse = function(items, scale, trends) {
 
       // Group items and trends by itemid
       var indexed_items = _.indexBy(items, 'itemid');
@@ -204,6 +204,11 @@ function (angular, _, kbn) {
 
             // Value must be a number for properly work
             var value = Number(p.value_avg);
+
+            // Apply scale
+            if (scale) {
+              value *= scale;
+            }
             return [value, p.clock * 1000];
           })
         };
@@ -226,7 +231,7 @@ function (angular, _, kbn) {
      *                               datapoints: [[<value>, <unixtime>], ...]
      *                            }
      */
-    ZabbixAPIDatasource.prototype.handleHistoryResponse = function(items, history) {
+    ZabbixAPIDatasource.prototype.handleHistoryResponse = function(items, scale, history) {
       /**
        * Response should be in the format:
        * data: [
@@ -253,6 +258,11 @@ function (angular, _, kbn) {
 
             // Value must be a number for properly work
             var value = Number(p.value);
+
+            // Apply scale
+            if (scale) {
+              value *= scale;
+            }
             return [value, p.clock * 1000];
           })
         };
diff --git a/zabbix/partials/query.editor.html b/zabbix/partials/query.editor.html
index c00a77f7b..76da671bf 100644
--- a/zabbix/partials/query.editor.html
+++ b/zabbix/partials/query.editor.html
@@ -125,6 +125,15 @@
                  placeholder="Item filter (regex)"
                  ng-blur="targetBlur()">
         </li>
+        <!-- Scale -->
+        <li>
+          <input type="text"
+                 class="tight-form-input input-small"
+                 ng-model="target.scale"
+                 spellcheck='false'
+                 placeholder="Set scale"
+                 ng-blur="targetBlur()">
+        </li>
       </ul>
 
       <div class="clearfix"></div>