can't add column if name in use

1 files changed, 7 insertions, 2 deletions

diff --git a/src/client/views/collections/CollectionNoteTakingView.tsx b/src/client/views/collections/CollectionNoteTakingView.tsx
index 9e40356d6..16fefc55a 100644
--- a/src/client/views/collections/CollectionNoteTakingView.tsx
+++ b/src/client/views/collections/CollectionNoteTakingView.tsx
@@ -587,10 +587,15 @@ export class CollectionNoteTakingView extends CollectionSubView<Partial<collecti
 
     // addGroup is called when adding a new columnHeader, adding a SchemaHeaderField to our list of 
     // columnHeaders and resizing the existing columns to make room for our new one.
-    @undoBatch
     @action
     @undoBatch
     addGroup = (value: string) => {
+        for (const header of this.columnHeaders) {
+          if (header.heading == value) {
+            alert('You cannot use an existing column name. Please try a new column name');
+            return value;
+          }
+        }
         const columnHeaders = Cast(this.props.Document.columnHeaders, listSpec(SchemaHeaderField), null);
         const newColWidth = 1 / (this.numGroupColumns + 1);
         return value && columnHeaders?.push(new SchemaHeaderField(value, undefined, undefined, newColWidth)) && this.resizeColumns(true, newColWidth, this.columnHeaders.length - 1) ? true : false;
@@ -607,7 +612,7 @@ export class CollectionNoteTakingView extends CollectionSubView<Partial<collecti
         }
     };
 
-    // setColumnStartXCoords is used to update column sizes when using the drag handlers between columns
+    // setColumnStartXCoords is used to update column widths when using the drag handlers between columns
     @action
     setColumnStartXCoords = (movementXScreen: number, colIndex: number) => {
         const movementX = this.props.ScreenToLocalTransform().transformDirection(movementXScreen, 0)[0];