add 城市列表

zhongzheng-system/src/main/java/com/zhongzheng/modules/base/service/impl/ApplyAreasServiceImpl.java

@@ -1,7 +1,9 @@
 package com.zhongzheng.modules.base.service.impl;
 
 import cn.hutool.core.bean.BeanUtil;
+import cn.hutool.core.lang.Validator;
 import cn.hutool.core.util.StrUtil;
+import com.zhongzheng.common.exception.CustomException;
 import com.zhongzheng.common.utils.DateUtils;
 import com.zhongzheng.common.utils.ServletUtils;
 import com.zhongzheng.modules.base.bo.ApplyAreasAddBo;
@@ -11,6 +13,7 @@ import com.zhongzheng.modules.base.domain.ApplyAreas;
 import com.zhongzheng.modules.base.mapper.ApplyAreasMapper;
 import com.zhongzheng.modules.base.service.IApplyAreasService;
 import com.zhongzheng.modules.base.vo.ApplyAreasVo;
+import com.zhongzheng.modules.course.domain.MajorCategory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
@@ -104,6 +107,9 @@ public class ApplyAreasServiceImpl extends ServiceImpl<ApplyAreasMapper, ApplyAr
      */
     private void validEntityBeforeSave(ApplyAreas entity){
         //TODO 做一些数据校验,如唯一约束
+        if(checkNameUnique(entity)&&Validator.isEmpty(entity.getAreaId())){
+            throw new CustomException("地区名重复");
+        }
     }
 
     @Override
@@ -113,4 +119,14 @@ public class ApplyAreasServiceImpl extends ServiceImpl<ApplyAreasMapper, ApplyAr
         }
         return this.removeByIds(ids);
     }
+
+    private boolean checkNameUnique(ApplyAreas entity) {
+        ApplyAreas info = getOne(new LambdaQueryWrapper<ApplyAreas>()
+                .eq(ApplyAreas::getAreaName,entity.getAreaName())
+                .last("limit 1"));
+        if (Validator.isNotNull(info)) {
+            return true;
+        }
+        return false;
+    }
 }