added typeahead to column for influxdb, #103

src/app/controllers/influxTargetCtrl.js

@@ -15,14 +15,7 @@ function (angular) {
         $scope.target.function = 'mean';
       }
 
-      if (!seriesList) {
-        seriesList = [];
-        $scope.datasource.listSeries().then(function(series) {
-          seriesList = series;
-        });
-      }
-
-      $scope.oldSeris = $scope.target.series;
+      $scope.oldSeries = $scope.target.series;
       $scope.$on('typeahead-updated', function(){
         $timeout($scope.get_data);
       });
@@ -30,14 +23,38 @@ function (angular) {
 
     // Cannot use typeahead and ng-change on blur at the same time
     $scope.seriesBlur = function() {
-      if ($scope.oldSeris !== $scope.target.series) {
-        $scope.oldSeris = $scope.target.series;
+      if ($scope.oldSeries !== $scope.target.series) {
+        $scope.oldSeries = $scope.target.series;
         $scope.get_data();
       }
     };
 
-    $scope.listSeries = function() {
-      return seriesList;
+    // called outside of digest
+    $scope.listColumns = function(query, callback) {
+      if (!$scope.columnList) {
+        $scope.$apply(function() {
+          $scope.datasource.listColumns($scope.target.series).then(function(columns) {
+            $scope.columnList = columns;
+            callback(columns);
+          });
+        });
+      }
+      else {
+        return $scope.columnList;
+      }
+    };
+
+    $scope.listSeries = function(query, callback) {
+      if (!seriesList) {
+        seriesList = [];
+        $scope.datasource.listSeries().then(function(series) {
+          seriesList = series;
+          callback(seriesList);
+        });
+      }
+      else {
+        return seriesList;
+      }
     };
 
     $scope.duplicate = function() {

src/app/partials/influxdb/editor.html

@@ -66,7 +66,9 @@
                    ng-model="target.column"
                    placeholder="value column"
                    spellcheck='false'
-                   ng-model-onblur ng-change="get_data()" >
+                   bs-typeahead="listColumns"
+                   data-min-length=0
+                   ng-blur="get_data()">
           </li>
           <li class="grafana-target-segment">
             function

src/app/services/influxdb/influxdbDatasource.js

@@ -41,7 +41,6 @@ function (angular, _, kbn) {
         };
 
         var query = _.template(template, templateData, this.templateSettings);
-        console.log(query);
 
         return this.doInfluxRequest(query).then(handleInfluxQueryResponse);
 
@@ -54,6 +53,17 @@ function (angular, _, kbn) {
 
     };
 
+    InfluxDatasource.prototype.listColumns = function(seriesName) {
+      return this.doInfluxRequest('select * from ' + seriesName + ' limit 1').then(function(results) {
+        console.log('response!');
+        if (!results.data) {
+          return [];
+        }
+
+        return results.data[0].columns;
+      });
+    };
+
     InfluxDatasource.prototype.listSeries = function() {
       return this.doInfluxRequest('list series').then(function(results) {
         if (!results.data) {
@@ -79,6 +89,7 @@ function (angular, _, kbn) {
         params: params,
       };
 
+      console.log(query);
       return $http(options);
     };