added saving and showing temp searches also trailing comman in default.json was causing the default to fail to load for me, #633

.gitignore

@@ -9,3 +9,4 @@ config.js
 # Editor junk
 *.sublime-workspace
 *.swp
+.idea/

src/app/dashboards/default.json

@@ -137,7 +137,7 @@
   "loader": {
     "save_temp": true,
     "save_temp_ttl_enable": true,
-    "save_temp_ttl": "30d",
+    "save_temp_ttl": "30d"
   },
   "refresh": false
 }

src/app/services/influxdb/influxdbDatasource.js

@@ -249,11 +249,57 @@ function (angular, _, kbn, InfluxSeries) {
       });
     };
 
+    InfluxDatasource.prototype.saveDashboardTemp = function(dashboard, title) {
+      var dashboardClone = angular.copy(dashboard);
+      var tags = dashboardClone.tags.join(',');
+      title = dashboardClone.title = title ? title : dashboard.title;
+      var ttl = dashboard.loader.save_temp_ttl
+      var ttlLength = ttl.substring(0, ttl.length-1);
+      var ttlTerm = ttl.substring(ttl.length-1, ttl.length).toLowerCase();
+      var expires = Date.now();
+      switch(ttlTerm) {
+        case "m":
+          expires += ttlLength * 60000;
+          break;
+        case "d":
+          expires += ttlLength * 86400000;
+          break;
+        case "w":
+          expires += ttlLength * 604800000;
+        default:
+         throw "Unknown ttl duration format";
+      }
+
+      var data = [{
+        name: 'grafana.dashboard_' + btoa(title),
+        columns: ['time', 'sequence_number', 'title', 'tags', 'dashboard', 'expires'],
+        points: [[1, 1, title, tags, angular.toJson(dashboardClone), expires]]
+      }];
+
+      return this._influxRequest('POST', '/series', data).then(function() {
+        var baseUrl = window.location.href.replace(window.location.hash,'');
+        var url = baseUrl + "#dashboard/temp/" + title;
+        return { title: title, url: url };
+      }, function(err) {
+        throw 'Failed to save shared dashboard to InfluxDB: ' + err.data;
+      });
+    };
     InfluxDatasource.prototype.getDashboard = function(id) {
-      return this._seriesQuery('select dashboard from "grafana.dashboard_' + btoa(id) + '"').then(function(results) {
+      var queryString = 'select dashboard from "grafana.dashboard_' + btoa(id) + '"';
+      // hack to check if it is a temp dashboard
+      if (window.location.href.indexOf('dashboard/temp') > 0) {
+        var isTemp = true;
+        queryString = 'select dashboard, expires from "grafana.dashboard_' + btoa(id) + '"';
+      }
+      return this._seriesQuery(queryString).then(function(results) {
         if (!results || !results.length) {
           throw "Dashboard not found";
         }
+        var expiresCol = _.indexOf(results[0].columns, 'expires');
+        var expiresTime = results[0].points[0][expiresCol];
+        if (Date.now() > expiresTime && isTemp) {
+            throw "Dashboard has expired";
+        }
         var dashCol = _.indexOf(results[0].columns, 'dashboard');
         var dashJson = results[0].points[0][dashCol];
         return angular.fromJson(dashJson);