fix: clean booth snapshots when deleting outdoor fairs

ruoyi-bussiness/src/main/java/com/ruoyi/cms/controller/cms/OutdoorFairController.java

@@ -423,7 +423,7 @@ public class OutdoorFairController extends BaseController
         if (RoleUtils.isCompanyAdmin()) {
             return AjaxResult.error("企业用户无权删除户外招聘会");
         }
-        return toAjax(outdoorFairService.removeByIds(Arrays.asList(ids)));
+        return toAjax(outdoorFairService.removeWithBoothSnapshotsByIds(Arrays.asList(ids)));
     }
 
     /**

ruoyi-bussiness/src/main/java/com/ruoyi/cms/service/IOutdoorFairService.java

@@ -1,5 +1,6 @@
 package com.ruoyi.cms.service;
 
+import java.util.Collection;
 import java.util.List;
 
 import com.baomidou.mybatisplus.extension.service.IService;
@@ -21,6 +22,14 @@ public interface IOutdoorFairService extends IService<OutdoorFair>
      */
     List<OutdoorFair> selectOutdoorFairList(OutdoorFair outdoorFair);
 
+    /**
+     * 删除户外招聘会及其展位副本、展位预定记录。
+     *
+     * @param ids 招聘会 ID 集合
+     * @return 删除的招聘会数量
+     */
+    int removeWithBoothSnapshotsByIds(Collection<Long> ids);
+
     /**
      * 新增户外招聘会相关字典项
      *

ruoyi-bussiness/src/main/java/com/ruoyi/cms/service/impl/OutdoorFairServiceImpl.java

@@ -1,16 +1,21 @@
 package com.ruoyi.cms.service.impl;
 
+import java.util.Collection;
 import java.util.List;
 
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.ruoyi.cms.domain.OutdoorFair;
+import com.ruoyi.cms.mapper.OutdoorFairBoothBookingMapper;
+import com.ruoyi.cms.mapper.OutdoorFairBoothMapper;
 import com.ruoyi.cms.mapper.OutdoorFairMapper;
 import com.ruoyi.cms.service.IOutdoorFairService;
 import com.ruoyi.common.exception.ServiceException;
 import com.ruoyi.common.utils.DictUtils;
 import com.ruoyi.common.utils.StringUtils;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 
 /**
  * 户外招聘会Service业务层处理
@@ -25,6 +30,12 @@ public class OutdoorFairServiceImpl extends ServiceImpl<OutdoorFairMapper, Outdo
 
     private static final String OUTDOOR_FAIR_REGION_DICT = "outdoor_fair_region";
 
+    @Autowired
+    private OutdoorFairBoothMapper outdoorFairBoothMapper;
+
+    @Autowired
+    private OutdoorFairBoothBookingMapper outdoorFairBoothBookingMapper;
+
     /**
      * 查询户外招聘会列表
      *
@@ -46,6 +57,27 @@ public class OutdoorFairServiceImpl extends ServiceImpl<OutdoorFairMapper, Outdo
         return list(queryWrapper);
     }
 
+    /**
+     * 删除招聘会时，展位副本和预定没有继续保留的业务意义；必须与主记录在同一事务内清理，
+     * 避免逻辑删除后的招聘会遗留可见展位或预定孤儿数据。
+     */
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public int removeWithBoothSnapshotsByIds(Collection<Long> ids)
+    {
+        if (ids == null || ids.isEmpty()) {
+            return 0;
+        }
+        for (Long fairId : ids) {
+            if (fairId == null) {
+                continue;
+            }
+            outdoorFairBoothBookingMapper.physicalDeleteByFairId(fairId);
+            outdoorFairBoothMapper.physicalDeleteByFairId(fairId);
+        }
+        return baseMapper.deleteBatchIds(ids);
+    }
+
     /**
      * 新增户外招聘会相关字典项
      *