修改单号 2759 人物所在类别删除后，展示异常

src/main/java/com/zzsn/leaderbase/service/impl/LeaderCategoryServiceImpl.java

@@ -3,16 +3,20 @@ package com.zzsn.leaderbase.service.impl;
 
 import cn.hutool.core.collection.CollectionUtil;
 import cn.hutool.core.util.StrUtil;
+import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
 import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.zzsn.leaderbase.entity.CharacterCategoryStructure;
+import com.zzsn.leaderbase.entity.CharacterChangeInfo;
 import com.zzsn.leaderbase.mapper.LeaderCategoryMapper;
+import com.zzsn.leaderbase.service.CharacterChangeInfoService;
 import com.zzsn.leaderbase.service.LeaderCategoryService;
 import com.zzsn.leaderbase.vo.CharacterCategoryStructureTreeVo;
 import com.zzsn.leaderbase.vo.Result;
 import org.apache.commons.lang3.ObjectUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.BeanUtils;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
@@ -30,6 +34,9 @@ import java.util.stream.Collectors;
 @Service
 public class LeaderCategoryServiceImpl extends ServiceImpl<LeaderCategoryMapper, CharacterCategoryStructure> implements LeaderCategoryService {
 
+    @Autowired
+    CharacterChangeInfoService characterChangeInfoService;
+
     @Override
     @Transactional
     public Result<?> add(CharacterCategoryStructure characterCategoryStructure) {
@@ -133,6 +140,13 @@ public class LeaderCategoryServiceImpl extends ServiceImpl<LeaderCategoryMapper,
         if (StringUtils.isNotBlank(byId.getPid())&&!LeaderCategoryService.ROOT_PID_VALUE.equals(byId.getPid())){
             updateOldParentNodeDel(byId.getPid());
         }
+
+        //删除分类时，需要情况该分类下关联的人物  单号 2759 人物所在类别删除后，展示异常
+        UpdateWrapper<CharacterChangeInfo> wrapper = new UpdateWrapper<>();
+        wrapper.set("type_id",null);  //设置字段值为null
+        wrapper.in("type_id",id);
+        characterChangeInfoService.update(null,wrapper);  //更新   默认忽略null，所以实体类传的null，然后执行后面的条件和内容
+
         return Result.OK();
     }