Edges overview widget CustomerInfo updated

ui/src/app/locale/locale.constant-en_US.json

@@ -857,7 +857,8 @@
         "missing-related-rule-chains-text": "Assigned to edge rule chain(s) use rule nodes that forward message(s) to rule chain(s) that are not assigned to this edge. <br><br> List of missing rule chain(s): <br> {{missingRuleChains}}",
         "downlinks": "Downlinks",
         "no-downlinks-prompt": "No downlinks found",
-        "assigned-to-customer-widget": "Assigned to: {{customerTitle}}"
+        "assigned-to-customer-widget": "Assigned to: {{customerTitle}}",
+        "widget-datasource-error": "This widget supports only EDGE entity datasource"
     },
     "edge-event": {
       "type-dashboard": "Dashboard",

ui/src/app/widget/lib/edges-overview-widget.js

@@ -68,6 +68,7 @@ function EdgesOverviewWidgetController($element, $scope, $q, $timeout, $translat
     };
 
     vm.customerTitle = null;
+    vm.edgeIsDatasource = true;
 
     var edgeGroupsTypes = [
         types.entityType.asset,

ui/src/app/widget/lib/edges-overview-widget.tpl.html

@@ -17,7 +17,8 @@
 -->
 <div class="tb-absolute-fill tb-edges-overview" layout="column">
     <div ng-show="vm.showData" flex class="tb-absolute-fill" layout="column">
-        <span class="mat-subheader" *ngIf="vm.customerTitle" fxLayout="row">{{ vm.customerTitle }}</span>
+        <span class="mat-subheader" ng-if="vm.customerTitle" fxLayout="row">{{ vm.customerTitle }}</span>
+        <span class="mat-subheader" ng-if="!vm.edgeIsDatasource" fxLayout="row" translate>edge.widget-datasource-error</span>
         <md-toolbar class="md-table-toolbar md-default" ng-show="vm.query.search != null">
             <div class="md-toolbar-tools">
                 <md-button class="md-icon-button" aria-label="{{ 'action.search' | translate }}">