Fixes #13 (partially) Use relative time ranges whenever possible when querying graphite

src/app/panels/graphite/module.js

@@ -320,7 +320,7 @@ function (angular, app, $, _, kbn, moment, timeSeries) {
       $scope.updateTimeRange();
 
       var graphiteQuery = {
-        range: $scope.range,
+        range: filterSrv.timeRange(false),
         targets: $scope.panel.targets,
         maxDataPoints: $scope.panel.span * 50
       };

src/app/services/graphite/graphiteSrv.js

@@ -14,8 +14,8 @@ function (angular, _, $, config) {
     this.query = function(options) {
       try {
         var graphOptions = {
-          from: $.plot.formatDate(options.range.from, '%H%:%M_%Y%m%d'),
-          until: $.plot.formatDate(options.range.to, '%H%:%M_%Y%m%d'),
+          from: this.translateTime(options.range.from),
+          until: this.translateTime(options.range.to),
           targets: options.targets,
           maxDataPoints: options.maxDataPoints
         };
@@ -34,6 +34,22 @@ function (angular, _, $, config) {
       }
     };
 
+    this.translateTime = function(date) {
+      if (_.isDate(date)) {
+        return $.plot.formatDate(date, '%H%:%M_%Y%m%d');
+      }
+
+      if (date === 'now') {
+        return 'now';
+      }
+
+      date = date.substring(3);
+      date = date.replace('m', 'min');
+      date = date.replace('M', 'mon');
+
+      return date;
+    };
+
     this.match = function(targets, graphiteTargetStr) {
       var found = targets[0];