From 933e6018160eb419c3707d7673e8d29f74c8e1bf Mon Sep 17 00:00:00 2001
From: Syngnat <yangguofeng919@gmail.com>
Date: Mon, 13 Jul 2026 12:55:22 +0800
Subject: [PATCH] =?UTF-8?q?=F0=9F=90=9B=20fix(snippet):=20=E4=BF=9D?=
 =?UTF-8?q?=E7=95=99=E4=BB=A3=E7=A0=81=E7=89=87=E6=AE=B5=E5=B0=BE=E9=83=A8?=
 =?UTF-8?q?=E7=A9=BA=E7=99=BD?=
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- 持久化时完整保留代码片段正文中的尾部空格与换行
- 继续拒绝仅包含空白字符的无效片段
- 补充保存、存储及重新加载后的正文一致性测试
---
 frontend/src/store.test.ts | 25 +++++++++++++++++++++++++
 frontend/src/store.ts      |  4 ++--
 2 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/frontend/src/store.test.ts b/frontend/src/store.test.ts
index 91874196..c0b20673 100644
--- a/frontend/src/store.test.ts
+++ b/frontend/src/store.test.ts
@@ -2268,4 +2268,29 @@ describe('store appearance persistence', () => {
     expect(persistedSnippets).toHaveLength(1);
     expect(persistedSnippets[0].syntaxHelp).toBe('新说明：目标表、数据源、关联字段均可修改');
   });
+
+  it('preserves custom SQL snippet body whitespace across reloads', async () => {
+    const { useStore } = await importStore();
+    const body = 'SELECT ${1:columns} FROM ${2:table_name}\n  ';
+
+    useStore.getState().saveSqlSnippet({
+      id: 'custom-trailing-whitespace',
+      prefix: 'trail',
+      name: 'Trailing whitespace',
+      body,
+      isBuiltin: false,
+      createdAt: 1710000000000,
+    });
+
+    expect(useStore.getState().sqlSnippets.find((snippet) => snippet.id === 'custom-trailing-whitespace')?.body)
+      .toBe(body);
+    const persisted = JSON.parse(storage.getItem('lite-db-storage') || '{}');
+    expect(persisted.state.sqlSnippets.find((snippet: { id: string }) => snippet.id === 'custom-trailing-whitespace')?.body)
+      .toBe(body);
+
+    vi.resetModules();
+    const reloaded = await importStore();
+    expect(reloaded.useStore.getState().sqlSnippets.find((snippet) => snippet.id === 'custom-trailing-whitespace')?.body)
+      .toBe(body);
+  });
 });
diff --git a/frontend/src/store.ts b/frontend/src/store.ts
index fb61d196..f9eeeba5 100644
--- a/frontend/src/store.ts
+++ b/frontend/src/store.ts
@@ -1664,8 +1664,8 @@ const sanitizeSqlSnippets = (value: unknown): SqlSnippet[] => {
       .toLowerCase()
       .replace(/[^a-z0-9_]/g, "")
       .slice(0, 20);
-    const body = toTrimmedString(raw.body);
-    if (!prefix || !body) return;
+    const body = typeof raw.body === "string" ? raw.body : "";
+    if (!prefix || !body.trim()) return;
     const id = toTrimmedString(raw.id, `snippet-${index + 1}`) || `snippet-${index + 1}`;
     const fallbackName = indexedStoreFallback(
       "store.fallback.sql_snippet_name",