完成部门模块的迁移

src/main/java/cn/iocoder/dashboard/modules/system/dal/mysql/dao/dept/SysDeptMapper.java

@@ -21,4 +21,13 @@ public interface SysDeptMapper extends BaseMapper<SysDeptDO> {
                 .eqIfPresent("status", reqVO.getStatus()));
     }
 
+    default SysDeptDO selectByParentIdAndName(Long parentId, String name) {
+        return selectOne(new QueryWrapper<SysDeptDO>().eq("parent_id", parentId)
+                .eq("name", name));
+    }
+
+    default Integer selectCountByParentId(Long parentId) {
+        return selectCount(new QueryWrapper<SysDeptDO>().eq("parent_id", parentId));
+    }
+
 }

src/main/java/cn/iocoder/dashboard/modules/system/dal/mysql/dataobject/dept/SysDeptDO.java

@@ -32,10 +32,6 @@ public class SysDeptDO extends BaseDO {
      * 外键 {@link #id}
      */
     private Long parentId;
-    /**
-     * 祖级列表
-     */
-    private String ancestors;
     /**
      * 显示顺序
      */