From cc433c1fbdd7c118e768875ac1f0bc17aa9db5b7 Mon Sep 17 00:00:00 2001
From: Alexander Zobnin <alexanderzobnin@gmail.com>
Date: Tue, 21 Jun 2016 15:48:18 +0300
Subject: [PATCH] Issue #4740 - able to use $SeriesName variable in prefix of
 postfix.

---
 public/app/plugins/panel/singlestat/module.ts | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/public/app/plugins/panel/singlestat/module.ts b/public/app/plugins/panel/singlestat/module.ts
index 59da49ca3d590..078f682be2026 100644
--- a/public/app/plugins/panel/singlestat/module.ts
+++ b/public/app/plugins/panel/singlestat/module.ts
@@ -199,6 +199,13 @@ class SingleStatCtrl extends MetricsPanelCtrl {
         data.valueFormated = formatFunc(data.value, decimalInfo.decimals, decimalInfo.scaledDecimals);
         data.valueRounded = kbn.roundValue(data.value, decimalInfo.decimals);
       }
+
+      // Add $SeriesName variable for using in prefix or postfix
+      data.scopedVars = {
+        SeriesName: {
+          value: this.series[0].label
+        }
+      };
     }
 
     // check value to text mappings if its enabled
@@ -296,7 +303,7 @@ class SingleStatCtrl extends MetricsPanelCtrl {
     }
 
     function getSpan(className, fontSize, value)  {
-      value = templateSrv.replace(value);
+      value = templateSrv.replace(value, data.scopedVars);
       return '<span class="' + className + '" style="font-size:' + fontSize + '">' +
         value + '</span>';
     }