Update Getting Started instructions.

Use database number from redis url if available.

README.md

@@ -46,14 +46,8 @@ It's very likely that in the future we will switch to [D3.js](http://d3js.org/)
 
 ## Getting Started
 
-1. Download the [latest release](https://github.com/everythingme/redash/releases).
-2. Make sure you have `Python` v2.7, `pip`, PostgreSQL and Redis installed.
-3. Install Python requirements: `pip install -r requirements.txt`.
-4. Make a copy of the examples settings file: `cp redash/settings_example.py redash/settings.py` and edit the relevant settings.
-5. Create database: `./manage.py database create_tables`.
-6. Start the web server: `./manage.py runserver`.
-7. Start the worker: `./manage.py runworker`.
-8. Open `http://localhost:5000/` and query away.
+* [Setting up re:dash on Heroku in 5 minutes](https://github.com/EverythingMe/redash/wiki/Setting-up-re:dash-on-Heroku-in-5-minutes)
+* [Setting re:dash on your own server (Ubuntu)](https://github.com/EverythingMe/redash/wiki/Setting-re:dash-on-your-own-server-(Ubuntu))
 
 **Need help setting re:dash or one of the dependencies up?** Ping @arikfr on the IRC #redash channel or send a message to the [mailing list](https://groups.google.com/forum/#!forum/redash-users), and he will gladly help.
 

rd_ui/app/scripts/controllers.js

@@ -2,18 +2,29 @@
     var DashboardCtrl = function ($scope, $routeParams, $http, $timeout, Dashboard) {
         $scope.refreshEnabled = false;
         $scope.refreshRate = 60;
-
-        var refreshDashboard = function() {
-            $scope.dashboard = Dashboard.get({slug: $routeParams.dashboardSlug}, function(dashboard) {
-                $scope.$parent.pageTitle = dashboard.name;
-            });
-
-            autoRefresh();
-        };
+        $scope.dashboard = Dashboard.get({slug: $routeParams.dashboardSlug}, function(dashboard) {
+            $scope.$parent.pageTitle = dashboard.name;
+        });
 
         var autoRefresh = function() {
             if ($scope.refreshEnabled) {
-                $timeout(refreshDashboard, $scope.refreshRate);
+                $timeout(function() {
+                    Dashboard.get({slug: $routeParams.dashboardSlug}, function(dashboard) {
+                        var newWidgets = _.groupBy(_.flatten(dashboard.widgets), 'id');
+
+                        _.each($scope.dashboard.widgets, function(row) {
+                            _.each(row, function(widget, i) {
+                                var newWidget = newWidgets[widget.id];
+                                if (newWidget && newWidget[0].visualization.query.latest_query_data_id != widget.visualization.query.latest_query_data_id ) {
+                                    row[i] = newWidget[0];
+                                }
+                            });
+                        });
+
+                        autoRefresh();
+                    });
+
+                }, $scope.refreshRate);
             };
         }
 
@@ -30,8 +41,6 @@
                 autoRefresh();
             }
         };
-
-        refreshDashboard();
     };
 
     var WidgetCtrl = function ($scope, $http, $location, Query) {

redash/__init__.py

@@ -33,7 +33,11 @@ def json_representation(data, code, headers=None):
 
 
 redis_url = urlparse.urlparse(settings.REDIS_URL)
-redis_connection = redis.StrictRedis(host=redis_url.hostname, port=redis_url.port, db=0, password=redis_url.password)
+if redis_url.path:
+    redis_db = redis_url.path[1]
+else:
+    redis_db = 0
+redis_connection = redis.StrictRedis(host=redis_url.hostname, port=redis_url.port, db=redis_db, password=redis_url.password)
 
 from redash import data
 data_manager = data.Manager(redis_connection, db)