From bc6dcf839551855125e9a47b3c68f3f1d4e133bb Mon Sep 17 00:00:00 2001
From: onenewcode <lovestudy@qq.com>
Date: Sun, 11 Oct 2026 19:37:30 +0800
Subject: [PATCH] fix(export): use table name for single-table exports

---
 .../desktop/src/components/export/DatabaseExportDialog.vue | 4 ++--
 .../src/lib/export/__tests__/databaseExportOptions.spec.ts | 7 ++++++-
 apps/desktop/src/lib/export/databaseExportOptions.ts       | 5 +++++
 3 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/apps/desktop/src/components/export/DatabaseExportDialog.vue b/apps/desktop/src/components/export/DatabaseExportDialog.vue
index 82458bafe1..001cf71694 100644
--- a/apps/desktop/src/components/export/DatabaseExportDialog.vue
+++ b/apps/desktop/src/components/export/DatabaseExportDialog.vue
@@ -24,7 +24,7 @@ import { isQueryTimeoutErrorMessage } from "@/lib/sql/queryError";
 import type { SqlInsertDialect, SqlInsertMode } from "@/lib/export/sqlInsertMode";
 import { revealExportedPath } from "@/lib/export/exportPath";
 import { translateBackendError } from "@/i18n/backend-errors";
-import { loadSavedDatabaseExportOptions, MAX_SPLIT_SQL_PART_MB, MIN_SPLIT_SQL_PART_MB, saveDatabaseExportOptions, sortDatabaseTableNames } from "@/lib/export/databaseExportOptions";
+import { databaseExportFileStem, loadSavedDatabaseExportOptions, MAX_SPLIT_SQL_PART_MB, MIN_SPLIT_SQL_PART_MB, saveDatabaseExportOptions, sortDatabaseTableNames } from "@/lib/export/databaseExportOptions";
 import { notifyExportComplete } from "@/lib/export/exportReveal";
 
 const { t } = useI18n();
@@ -403,7 +403,7 @@ async function startExport() {
 
   if (isTauriRuntime()) {
     try {
-      const safeName = sanitizeFileName(database.value || "database");
+      const safeName = sanitizeFileName(databaseExportFileStem(database.value || "database", selectedTables.value) || "database");
       const path = await promptExportSavePath({
         defaultFileName: `${safeName}.${splitSqlOutput.value ? "zip" : "sql"}`,
         filters: [{ name: splitSqlOutput.value ? "ZIP" : "SQL", extensions: [splitSqlOutput.value ? "zip" : "sql"] }],
diff --git a/apps/desktop/src/lib/export/__tests__/databaseExportOptions.spec.ts b/apps/desktop/src/lib/export/__tests__/databaseExportOptions.spec.ts
index c3806c5a2b..834c082538 100644
--- a/apps/desktop/src/lib/export/__tests__/databaseExportOptions.spec.ts
+++ b/apps/desktop/src/lib/export/__tests__/databaseExportOptions.spec.ts
@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { DEFAULT_DATABASE_EXPORT_OPTIONS, DATABASE_EXPORT_OPTIONS_STORAGE_KEY, loadSavedDatabaseExportOptions, saveDatabaseExportOptions, sortDatabaseTableNames } from "../databaseExportOptions";
+import { databaseExportFileStem, DEFAULT_DATABASE_EXPORT_OPTIONS, DATABASE_EXPORT_OPTIONS_STORAGE_KEY, loadSavedDatabaseExportOptions, saveDatabaseExportOptions, sortDatabaseTableNames } from "../databaseExportOptions";
 
 function createMemoryStorage(initial: Record<string, string> = {}) {
   const store = new Map<string, string>(Object.entries(initial));
@@ -12,6 +12,11 @@ function createMemoryStorage(initial: Record<string, string> = {}) {
 }
 
 describe("databaseExportOptions", () => {
+  it("uses the selected table as the filename stem for a single-table export", () => {
+    expect(databaseExportFileStem("app", ["orders"])).toBe("orders");
+    expect(databaseExportFileStem("app", ["orders", "users"])).toBe("app");
+    expect(databaseExportFileStem("app", [])).toBe("app");
+  });
   it("returns default options when storage is empty or contains invalid json", () => {
     const emptyStorage = createMemoryStorage();
     expect(loadSavedDatabaseExportOptions(emptyStorage)).toEqual(DEFAULT_DATABASE_EXPORT_OPTIONS);
diff --git a/apps/desktop/src/lib/export/databaseExportOptions.ts b/apps/desktop/src/lib/export/databaseExportOptions.ts
index 9dd34d3972..3d233db0d6 100644
--- a/apps/desktop/src/lib/export/databaseExportOptions.ts
+++ b/apps/desktop/src/lib/export/databaseExportOptions.ts
@@ -82,3 +82,8 @@ export function sortDatabaseTableNames(names: string[]): string[] {
   // Pin the collation so the order does not shift with the OS locale.
   return [...names].sort((a, b) => a.localeCompare(b, "en", { sensitivity: "base" }));
 }
+
+/** Use the selected table as the suggested filename when exporting one table. */
+export function databaseExportFileStem(database: string, selectedTables: readonly string[]): string {
+  return selectedTables.length === 1 ? selectedTables[0]! : database;
+}