GDB-4946 Set emty label when empty preview value

Ontotext-AD · Sep 8, 2020 · 7d7c07f · 7d7c07f
1 parent 256d8de
commit 7d7c07f
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/app/main/mapper/cell/cell.component.ts b/src/app/main/mapper/cell/cell.component.ts
@@ -161,8 +161,8 @@ export class CellComponent extends OnDestroyMixin implements OnInit {
   }
 
   isEmptyPreview(): boolean {
-    const preview = this.modelManagementService.getPreview(this.cellMapping);
-    return preview && preview[0] === null && preview.length === 1 || preview && preview.length === 0;
+    const preview = this.modelManagementService.getPreview(this.cellMapping) || [];
+    return preview.length === 0 || preview.length === 1 && (preview[0] === null || preview[0] === '');
   }
 
   public drop($event: CdkDragDrop<Source, any>) {