From 6de1df9acfaa6d8d325993e8bf43124f5457db27 Mon Sep 17 00:00:00 2001
From: mediabot-pt <295750538+mediabot-pt@users.noreply.github.com>
Date: Tue, 7 Jul 2026 23:56:46 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E5=88=9B=E5=BB=BA=E6=96=B0=20draft=20?=
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每次 savePreview/updateSnapshot 插入新 draft 前 deleteBySiteIdAndStatus('draft')，确保每站点最多一个预览版
---
 .../com/par/core/service/impl/SiteSnapshotServiceImpl.java  | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/par-core/src/main/java/com/par/core/service/impl/SiteSnapshotServiceImpl.java b/par-core/src/main/java/com/par/core/service/impl/SiteSnapshotServiceImpl.java
index 845850e..dfa0e75 100644
--- a/par-core/src/main/java/com/par/core/service/impl/SiteSnapshotServiceImpl.java
+++ b/par-core/src/main/java/com/par/core/service/impl/SiteSnapshotServiceImpl.java
@@ -138,6 +138,9 @@ public class SiteSnapshotServiceImpl implements SiteSnapshotService {
 
             int newVersion = snapshotMapper.selectMaxVersion(siteId) + 1;
 
+            // 清理旧 draft（确保一个站点最多一个预览版）
+            snapshotMapper.deleteBySiteIdAndStatus(siteId, "draft");
+
             SiteSnapshot snapshot = new SiteSnapshot();
             snapshot.setSiteId(siteId);
             snapshot.setVersion(newVersion);
@@ -181,6 +184,9 @@ public class SiteSnapshotServiceImpl implements SiteSnapshotService {
 
             int newVersion = snapshotMapper.selectMaxVersion(siteId) + 1;
 
+            // 清理旧 draft（确保一个站点最多一个预览版）
+            snapshotMapper.deleteBySiteIdAndStatus(siteId, "draft");
+
             SiteSnapshot snapshot = new SiteSnapshot();
             snapshot.setSiteId(siteId);
             snapshot.setVersion(newVersion);