fix(draggable-column): guard against undefined sourceColumn (#521)

adopted-ember-addons · Dec 1, 2017 · f5b56c9 · f5b56c9
1 parent c646509
commit f5b56c9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/addon/mixins/draggable-column.js b/addon/mixins/draggable-column.js
@@ -41,7 +41,7 @@ export default Mixin.create({
     /*
      A column is a valid drop target only if its in the same group
      */
-    return column.get('droppable') && column.get('parent') === sourceColumn.get('parent');
+    return sourceColumn && column.get('droppable') && column.get('parent') === sourceColumn.get('parent');
   }).volatile().readOnly(),
 
   dragStart(e) {