fix: unique index conflict issue after backup restoration preventing startup

application/src/main/java/run/halo/app/migration/impl/MigrationServiceImpl.java

@@ -140,7 +140,14 @@ public Mono<Void> restore(Publisher<DataBuffer> content) {
         return Mono.usingWhen(
             createTempDir("halo-restore-", scheduler),
             tempDir -> unpackBackup(content, tempDir)
-                .then(Mono.defer(() -> restoreExtensions(tempDir)))
+                .then(Mono.defer(() ->
+                    // This step skips index verification such as unique index.
+                    // In order to avoid index conflicts after recovery or
+                    // OptimisticLockingFailureException when updating the same record,
+                    // so we need to truncate all extension stores before saving(create or update).
+                    repository.deleteAll()
+                        .then(restoreExtensions(tempDir)))
+                )
                 .then(Mono.defer(() -> restoreWorkdir(tempDir))),
             tempDir -> deleteRecursivelyAndSilently(tempDir, scheduler)
         );
@@ -240,13 +247,9 @@ private Mono<Void> restoreExtensions(Path backupRoot) {
                             sink.complete();
                         })
                     // reset version
-                    .doOnNext(extensionStore -> extensionStore.setVersion(null)).buffer(100)
-                    // We might encounter OptimisticLockingFailureException when saving extension
-                    // store,
-                    // So we have to delete all extension stores before saving.
-                    .flatMap(extensionStores -> repository.deleteAll(extensionStores)
-                        .thenMany(repository.saveAll(extensionStores))
-                    )
+                    .doOnNext(extensionStore -> extensionStore.setVersion(null))
+                    .buffer(100)
+                    .flatMap(repository::saveAll)
                     .doOnNext(extensionStore -> log.info("Restored extension store: {}",
                         extensionStore.getName()))
                     .then(),

application/src/test/java/run/halo/app/migration/impl/MigrationServiceImplTest.java

@@ -120,7 +120,7 @@ void restoreTest() throws IOException, URISyntaxException {
         expectStore.setVersion(null);
 
         when(haloProperties.getWorkDir()).thenReturn(workdir);
-        when(repository.deleteAll(List.of(expectStore))).thenReturn(Mono.empty());
+        when(repository.deleteAll()).thenReturn(Mono.empty());
         when(repository.saveAll(List.of(expectStore))).thenReturn(Flux.empty());
 
         var content = DataBufferUtils.read(backupFile,
@@ -132,7 +132,7 @@ void restoreTest() throws IOException, URISyntaxException {
 
 
         verify(haloProperties).getWorkDir();
-        verify(repository).deleteAll(List.of(expectStore));
+        verify(repository).deleteAll();
         verify(repository).saveAll(List.of(expectStore));
 
         // make sure the workdir is recovered.

ui/console-src/modules/system/backup/tabs/Restore.vue

@@ -114,7 +114,9 @@ useQuery({
           <ul>
             <li>{{ $t("core.backup.restore.tips.first") }}</li>
             <li>
-              {{ $t("core.backup.restore.tips.second") }}
+              <strong>
+                {{ $t("core.backup.restore.tips.second") }}
+              </strong>
             </li>
             <li>
               {{ $t("core.backup.restore.tips.third") }}

ui/packages/components/src/components/dialog/Dialog.vue

@@ -86,7 +86,7 @@ const handleClose = () => {
   <VModal
     :visible="visible"
     :width="450"
-    :layer-closable="true"
+    :layer-closable="false"
     :data-unique-id="uniqueId"
     @close="handleCancel()"
   >

ui/src/locales/en.yaml

@@ -1402,14 +1402,12 @@ core:
         first: >-
           1. The restore process may last for a long time, please do not refresh
           the page during this period.
-        second: >-
-          2. During the restore process, although the existing data will not be
-          cleaned up, if there is a conflict, the data will be overwritten.
+        second: 2. Before performing the restore, all existing data will be cleared. Please ensure that there is no data that needs to be retained.
         third: >-
           3. After the restore is completed, you need to restart Halo to load
           the system resources normally.
         complete: Restore completed, waiting for restart...
-      start: Start restore
+      start: I have read the above instructions, start restore
       tabs:
         local:
           label: Upload

ui/src/locales/zh-CN.yaml

@@ -1302,10 +1302,10 @@ core:
     restore:
       tips:
         first: 1. 恢复过程可能会持续较长时间，期间请勿刷新页面。
-        second: 2. 在恢复的过程中，虽然已有的数据不会被清理掉，但如果有冲突的数据将被覆盖。
+        second: 2. 在执行恢复之前，会清空现有的所有数据，请确保当前没有需要保留的数据。
         third: 3. 恢复完成之后需要重启 Halo 才能够正常加载系统资源。
         complete: 恢复完成，等待重启...
-      start: 开始恢复
+      start: 我已阅读上方提示，开始恢复
       tabs:
         local:
           label: 上传

ui/src/locales/zh-TW.yaml

@@ -1281,10 +1281,10 @@ core:
     restore:
       tips:
         first: 1. 還原過程可能需要較長時間，期間請勿重新整理頁面。
-        second: 2. 在還原過程中，雖然已有的資料不會被清除，但若有衝突的資料將被覆蓋。
+        second: 2. 在執行恢復之前，會清空現有的所有數據，請確保當前沒有需要保留的數據。
         third: 3. 還原完成後需要重新啟動 Halo 才能正常載入系統資源。
         complete: 還原完成，等待重啟...
-      start: 開始還原
+      start: 我已閱讀上方提示，開始恢復
       tabs:
         local:
           label: 上傳