新增批量更新文件(分类ID)接口

src/main/java/com/backendsys/modules/upload/entity/SysFile.java

@@ -26,6 +26,7 @@ public class SysFile {
 
     @TableField(exist = false)
     @NotNull(message = "ids 不能为空", groups = { UpdateBatch.class })
+    @Size(min = 1, message = "ids 的数量必须大于 0", groups = { UpdateBatch.class })
     private List<Long> ids;
 
     @NotNull(message = "文件分类不能为空", groups = { UpdateBatch.class })

src/main/java/com/backendsys/modules/upload/service/impl/SysFileServiceImpl.java

@@ -402,13 +402,22 @@ public class SysFileServiceImpl extends ServiceImpl<SysFileDao, SysFile> impleme
         List<Long> ids = sysFile.getIds();
         Long category_id = sysFile.getCategory_id();
 
-        // 判断文件是否存在
+        // 判断 文件分类ID 是否存在
+        Boolean isExist = sysFileCategoryDao.exists(new LambdaQueryWrapper<SysFileCategory>().eq(SysFileCategory::getId, category_id));
+        if (!isExist) throw new CustException("文件分类不存在");
+
+        // [DB] 批量更新 分类ID
+        SysFile entity = new SysFile();
+        entity.setCategory_id(category_id);
+
+        // 查询条件 (当前用户, ids)
         LambdaQueryWrapper<SysFile> wrapperFile = new LambdaQueryWrapper<>();
         wrapperFile.eq(SysFile::getUser_id, sysFile.getUser_id());
-//        wrapperFile.in(ids);
-        List<SysFile> sysFileList = sysFileDao.selectList(wrapperFile);
+        wrapperFile.in(SysFile::getId, ids);
+
+        sysFileDao.update(entity, wrapperFile);
 
-        return null;
+        return Map.of("ids", ids);
     }
 
 }