Vishal: Added no linage data message and retry

dashboard/v2/public/modules/home/homeRoutes.js

@@ -24,8 +24,8 @@ angular.module('dgc.home.routes', []).config(['$stateProvider',
 
         // states for my app
         $stateProvider.state('home', {
-             url: '/',
-             templateUrl: '/modules/home/views/home.html'
+            url: '/',
+            templateUrl: '/modules/home/views/home.html'
         });
     }
 ]);

dashboard/v2/public/modules/lineage/lineageController.js

@@ -26,16 +26,18 @@ angular.module('dgc.lineage').controller('LineageController', ['$element', '$sco
                 tableName: tableData.tableName,
                 type: tableData.type
             }, function lineageSuccess(response) {
-                $scope.lineageData = transformData(response.results);
-                if (callRender) {
-                    render();
+                if (!_.isEmpty(response.results.values.vertices)) {
+                    $scope.lineageData = transformData(response.results);
+                    if (callRender) {
+                        render();
+                    }
                 }
+                $scope.requested = false;
             });
         }
 
         $scope.type = $element.parent().attr('data-table-type');
-        $scope.rendered = false;
-        var requested = false;
+        $scope.requested = false;
 
         function render() {
             renderGraph($scope.lineageData, {
@@ -49,9 +51,9 @@ angular.module('dgc.lineage').controller('LineageController', ['$element', '$sco
         $scope.$on('render-lineage', function(event, lineageData) {
             if (lineageData.type === $scope.type) {
                 if (!$scope.lineageData) {
-                    if (!requested) {
+                    if (!$scope.requested) {
                         getLineageData(lineageData, true);
-                        requested = true;
+                        $scope.requested = true;
                     }
                 } else {
                     render();

dashboard/v2/public/modules/lineage/views/lineage.html

@@ -17,7 +17,8 @@
   -->
 
 <div class="lineage-viz" data-ng-controller="LineageController">
-    <i data-ng-hide="rendered" class="fa fa-spinner fa-spin fa-5x"></i>
+    <h4 data-ng-if="!requested && !lineageData">No lineage data found</h4>
+    <i data-ng-if="requested" class="fa fa-spinner fa-spin fa-5x"></i>
     <svg>
         <g/>
     </svg>

dashboard/v2/public/modules/search/searchController.js

@@ -106,6 +106,6 @@ angular.module('dgc.search').controller('SearchController', ['$scope', '$locatio
         $scope.query = ($location.search()).query;
         if ($scope.query) {
             $scope.search($scope.query);
-         }
+        }
     }
 ]);

dashboard/v2/public/modules/search/searchRoutes.js

@@ -25,7 +25,7 @@ angular.module('dgc.search').config(['$stateProvider',
         $stateProvider.state('search', {
             url: '/search?query',
             templateUrl: '/modules/search/views/search.html',
-            controller: 'SearchController',
-        })
+            controller: 'SearchController'
+        });
     }
 ]);