feat: Don't allow duplicate cat-groups in budget (#2262)

* feat: Don't allow duplicate cat-groups in budget

* Add release notes

* fix: error message

* pass group instead of name for accurate error message

* improve error message

packages/desktop-client/src/components/budget/index.tsx

@@ -313,7 +313,24 @@ function BudgetInner(props: BudgetProps) {
     }
   };
 
+  const groupNameAlreadyExistsNotification = group => {
+    props.addNotification({
+      type: 'error',
+      message: `A ${group.hidden ? 'hidden ' : ''}’${group.name}’ category group already exists.`,
+    });
+  };
+
   const onSaveGroup = async group => {
+    const categories = await props.getCategories();
+    const matchingGroups = categories.grouped
+      .filter(g => g.name.toUpperCase() === group.name.toUpperCase())
+      .filter(g => group.id === 'new' || group.id !== g.id);
+
+    if (matchingGroups.length > 0) {
+      groupNameAlreadyExistsNotification(matchingGroups[0]);
+      return;
+    }
+
     if (group.id === 'new') {
       const id = await props.createGroup(group.name);
       setIsAddingGroup(false);

packages/loot-core/src/server/db/index.ts

@@ -304,6 +304,17 @@ export async function getCategoriesGrouped(): Promise<
 }
 
 export async function insertCategoryGroup(group) {
+  // Don't allow duplicate group
+  const existingGroup = await first(
+    `SELECT id, name, hidden FROM category_groups WHERE UPPER(name) = ? and tombstone = 0 LIMIT 1`,
+    [group.name.toUpperCase()],
+  );
+  if (existingGroup) {
+    throw new Error(
+      `A ${existingGroup.hidden ? 'hidden ' : ''}’${existingGroup.name}’ category group already exists.`,
+    );
+  }
+
   const lastGroup = await first(`
     SELECT sort_order FROM category_groups WHERE tombstone = 0 ORDER BY sort_order DESC, id DESC LIMIT 1
   `);

upcoming-release-notes/2262.md

+---
+category: Features
+authors: [dhruvramdev]
+---
+
+Don't allow duplicate category groups
\ No newline at end of file