(templating) add sort order option

public/app/features/templating/editorCtrl.js

@@ -13,6 +13,7 @@ function (angular, _) {
       type: 'query',
       datasource: null,
       refresh: 0,
+      sort: 1,
       name: '',
       hide: 0,
       options: [],
@@ -34,6 +35,12 @@ function (angular, _) {
       {value: 2, text: "On Time Range Change"},
     ];
 
+    $scope.sortOptions = [
+      {value: 0, text: "Without Sort"},
+      {value: 1, text: "Alphabetical"},
+      {value: 2, text: "Numerical"},
+    ];
+
     $scope.hideOptions = [
       {value: 0, text: ""},
       {value: 1, text: "Label"},

public/app/features/templating/partials/editor.html

@@ -181,6 +181,17 @@
               <select class="gf-form-input" ng-model="current.refresh" ng-options="f.value as f.text for f in refreshOptions"></select>
             </div>
           </div>
+          <div class="gf-form max-width-21">
+            <span class="gf-form-label width-7">
+              Sort
+              <info-popover mode="right-normal">
+                How to sort the values of this variable.
+              </info-popover>
+            </span>
+            <div class="gf-form-select-wrapper max-width-14">
+              <select class="gf-form-input" ng-model="current.sort" ng-options="f.value as f.text for f in sortOptions" ng-change="runQuery()"></select>
+            </div>
+          </div>
         </div>
         <div class="gf-form">
           <span class="gf-form-label width-7">Query</span>

public/app/features/templating/templateValuesSrv.js

@@ -327,7 +327,7 @@ function (angular, _, kbn) {
 
     this.metricNamesToVariableValues = function(variable, metricNames) {
       var regex, options, i, matches;
-      options = {}; // use object hash to remove duplicates
+      options = [];
 
       if (variable.regex) {
         regex = kbn.stringToJsRegex(templateSrv.replace(variable.regex));
@@ -355,10 +355,24 @@ function (angular, _, kbn) {
           }
         }
 
-        options[value] = {text: text, value: value};
+        options.push({text: text, value: value});
+      }
+      options = _.uniq(options, 'value');
+
+      if (variable.sort === 1) {
+        return _.sortBy(options, 'text');
+      } else if (variable.sort === 2) {
+        return _.sortBy(options, function(opt) {
+          var matches = opt.text.match(/.*?(\d+).*/);
+          if (!matches) {
+            return 0;
+          } else {
+            return parseInt(matches[1], 10);
+          }
+        });
+      } else {
+        return options;
       }
-
-      return _.sortBy(options, 'text');
     };
 
     this.addAllOption = function(variable) {

public/test/specs/templateValuesSrv-specs.js

@@ -386,5 +386,43 @@ define([
       });
     });
 
+    describeUpdateVariable('without sort', function(scenario) {
+      scenario.setup(function() {
+        scenario.variable = {type: 'query', query: 'apps.*', name: 'test', sort: 0};
+        scenario.queryResult = [{text: 'bbb2'}, {text: 'aaa10'}, { text: 'ccc3'}];
+      });
+
+      it('should return options without sort', function() {
+        expect(scenario.variable.options[0].text).to.be('bbb2');
+        expect(scenario.variable.options[1].text).to.be('aaa10');
+        expect(scenario.variable.options[2].text).to.be('ccc3');
+      });
+    });
+
+    describeUpdateVariable('with alphabetical sort', function(scenario) {
+      scenario.setup(function() {
+        scenario.variable = {type: 'query', query: 'apps.*', name: 'test', sort: 1};
+        scenario.queryResult = [{text: 'bbb2'}, {text: 'aaa10'}, { text: 'ccc3'}];
+      });
+
+      it('should return options with alphabetical sort', function() {
+        expect(scenario.variable.options[0].text).to.be('aaa10');
+        expect(scenario.variable.options[1].text).to.be('bbb2');
+        expect(scenario.variable.options[2].text).to.be('ccc3');
+      });
+    });
+
+    describeUpdateVariable('with numerical sort', function(scenario) {
+      scenario.setup(function() {
+        scenario.variable = {type: 'query', query: 'apps.*', name: 'test', sort: 2};
+        scenario.queryResult = [{text: 'bbb2'}, {text: 'aaa10'}, { text: 'ccc3'}];
+      });
+
+      it('should return options with numerical sort', function() {
+        expect(scenario.variable.options[0].text).to.be('bbb2');
+        expect(scenario.variable.options[1].text).to.be('ccc3');
+        expect(scenario.variable.options[2].text).to.be('aaa10');
+      });
+    });
   });
 });