修改根据部门id查找公路列表业务，新增部门为顶级部门，查询所有公路列表逻辑

tuoheng-service/tuoheng-admin/src/main/java/com/tuoheng/admin/constant/SystemConstant.java

@@ -0,0 +1,10 @@
+package com.tuoheng.admin.constant;
+
+public interface SystemConstant {
+
+    /**
+     * 顶级部门pid，默认为0
+     */
+    Integer ROOT_DEPT_PID = 0;
+
+}

tuoheng-service/tuoheng-admin/src/main/java/com/tuoheng/admin/service/road/query/QueryRoadListByDeptIdService.java

@@ -2,6 +2,7 @@ package com.tuoheng.admin.service.road.query;
 
 import cn.hutool.core.collection.CollectionUtil;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.tuoheng.admin.constant.SystemConstant;
 import com.tuoheng.admin.entity.Dept;
 import com.tuoheng.admin.entity.RoadDept;
 import com.tuoheng.admin.entity.RoadInformation;
@@ -52,8 +53,18 @@ public class QueryRoadListByDeptIdService {
             return result;
         }
 
-        // 获取该部门下公路列表
-        List<RoadInformation> roadInformationList = this.getRoadInformationList(tenantId, deptId);
+        // 在校验中，判断部门是否存在时，若部门存在，直接将部门信息返回，减少数据库查询次数
+        Dept dept = (Dept) result.getData();
+
+        // 获取公路列表
+        List<RoadInformation> roadInformationList;
+        if (SystemConstant.ROOT_DEPT_PID.equals(dept.getPid())) {
+            // 顶级部门获取所有的公路列表
+            roadInformationList = this.getAllRoadInformationList(tenantId);
+        } else {
+            // 非顶级部门获取该部门下公路列表
+            roadInformationList = this.getRoadInformationListByDeptId(tenantId, deptId);
+        }
         if (CollectionUtil.isEmpty(roadInformationList)) {
             log.info("根据部门Id查询公路列表业务：公路信息为空");
             return JsonResult.error(QueryRoadListByDeptIdCodeEnum.ROAD_LIST_IS_NULL.getCode(), QueryRoadListByDeptIdCodeEnum.ROAD_LIST_IS_NULL.getMsg());
@@ -85,16 +96,32 @@ public class QueryRoadListByDeptIdService {
     }
 
     /**
-     * 查询该部门下公路信息列表
+     * 如果是顶级部门，则查询所有公路列表
      *
      * @param tenantId
-     * @param id
      * @return
      */
-    private List<RoadInformation> getRoadInformationList(String tenantId, String id) {
+    private List<RoadInformation> getAllRoadInformationList(String tenantId) {
+        List<RoadInformation> roadList = roadInformationMapper.selectList(new LambdaQueryWrapper<RoadInformation>()
+                .eq(RoadInformation::getTenantId, tenantId)
+                .eq(RoadInformation::getMark, 1));
+        if (CollectionUtil.isEmpty(roadList)) {
+            return null;
+        }
+        return roadList;
+    }
+
+    /**
+     * 如果是非顶级部门，则查询该部门下公路信息列表
+     *
+     * @param tenantId
+     * @param deptId
+     * @return
+     */
+    private List<RoadInformation> getRoadInformationListByDeptId(String tenantId, String deptId) {
         List<RoadDept> roadDeptList = roadDeptMapper.selectList(new LambdaQueryWrapper<RoadDept>()
                 .eq(RoadDept::getTenantId, tenantId)
-                .eq(RoadDept::getDeptId, id));
+                .eq(RoadDept::getDeptId, deptId));
         if (CollectionUtil.isEmpty(roadDeptList)) {
             return null;
         }