[Admin]: Wellcome component: Add condition if communities is null exit from subscribe

git-svn-id: https://svn.driver.research-infrastructures.eu/driver/dnet40/modules/uoa-admin-portal/trunk@56942 d315682c-612b-4755-9ff5-7f18f6832af3

src/app/pages/wellcome/wellcome.component.ts

@@ -96,6 +96,9 @@ export class WellcomeComponent implements OnInit {
       //this._communitiesService.getCommunities(this.properties, this.properties.communityAPI + 'communities').subscribe(
       this._communitiesService.getCommunitiesState().subscribe(
         communities => {
+          if (!communities || communities.length === 0) {
+            return;
+          }
           var countCommunities = 0;
           var index_managerOfCommunity = null;
           for (var i = 0; i < communities.length; i++) {