Dashboards: Fix frontend exception when backend fails to save dashboard (#71144)

public/app/features/dashboard/components/SaveDashboard/useDashboardSave.tsx

@@ -14,7 +14,27 @@ import { DashboardSavedEvent } from 'app/types/events';
 
 import { SaveDashboardOptions } from './types';
 
-const saveDashboard = async (saveModel: any, options: SaveDashboardOptions, dashboard: DashboardModel) => {
+const saveDashboard = async (
+  saveModel: any,
+  options: SaveDashboardOptions,
+  dashboard: DashboardModel,
+  saveDashboardRtkQuery: ReturnType<typeof useSaveDashboardMutation>[0]
+) => {
+  if (config.featureToggles.nestedFolders) {
+    const query = await saveDashboardRtkQuery({
+      dashboard: saveModel,
+      folderUid: options.folderUid ?? dashboard.meta.folderUid ?? saveModel.meta.folderUid,
+      message: options.message,
+      overwrite: options.overwrite,
+    });
+
+    if ('error' in query) {
+      throw query.error;
+    }
+
+    return query.data;
+  }
+
   let folderUid = options.folderUid;
   if (folderUid === undefined) {
     folderUid = dashboard.meta.folderUid ?? saveModel.folderUid;
@@ -33,15 +53,7 @@ export const useDashboardSave = (dashboard: DashboardModel, isCopy = false) => {
   const [state, onDashboardSave] = useAsyncFn(
     async (clone: DashboardModel, options: SaveDashboardOptions, dashboard: DashboardModel) => {
       try {
-        const queryResult = config.featureToggles.nestedFolders
+        const result = await saveDashboard(clone, options, dashboard, saveDashboardRtkQuery);
-          ? await saveDashboardRtkQuery({
-              dashboard: clone,
-              folderUid: options.folderUid ?? dashboard.meta.folderUid ?? clone.meta.folderUid,
-              message: options.message,
-              overwrite: options.overwrite,
-            })
-          : await saveDashboard(clone, options, dashboard);
-        const result = config.featureToggles.nestedFolders ? queryResult.data : queryResult;
         dashboard.version = result.version;
         dashboard.clearUnsavedChanges();