refactor(generator): 优化代码生成模块接口和服务实现

- 修改接口定义，增加路径参数并完善请求描述，增强参数校验和依赖注入
- 优化CRUD层数据库操作，统一异步会话使用，删除多余db参数
- 增加业务表与字段模型关系级联删除配置，优化模型关联关系声明
- 精简pydantic模型，去除冗余校验装饰器，完善字段描述和必填约束
- 服务层增加类型检查和异常抛出，规范业务逻辑流程和错误提示
- 优化代码结构，调整模块导入顺序和注释，提升代码可读性和一致性

backend/app/api/v1/module_system/position/controller.py

@@ -29,7 +29,10 @@ async def get_obj_list_controller(
     search: PositionQueryParam = Depends(),
     auth: AuthSchema = Depends(AuthPermission(permissions=["system:position:query"])),
 ) -> JSONResponse:
-    result_dict_list = await PositionService.get_position_list_service(search=search, auth=auth, order_by=page.order_by)
+    order_by = [{"order": "asc"}]
+    if page.order_by:
+        order_by = page.order_by
+    result_dict_list = await PositionService.get_position_list_service(search=search, auth=auth, order_by=order_by)
     result_dict = await PaginationService.paginate(data_list= result_dict_list, page_no= page.page_no, page_size = page.page_size)
     logger.info(f"查询岗位列表成功")
     return SuccessResponse(data=result_dict, msg="查询岗位列表成功")

backend/app/api/v1/module_system/position/crud.py

@@ -25,7 +25,7 @@ class PositionCRUD(CRUDBase[PositionModel, PositionCreateSchema, PositionUpdateS
         """
         return await self.get(id=id)
 
-    async def get_list_crud(self, search: Dict = None, order_by: List[Dict[str, str]] = None) -> Sequence[PositionModel]:
+    async def get_list_crud(self, search: Optional[Dict] = None, order_by: Optional[List[Dict[str, str]]] = None) -> Sequence[PositionModel]:
         """
         获取岗位列表
         

backend/app/api/v1/module_system/position/param.py

@@ -28,6 +28,6 @@ class PositionQueryParam:
         
         # 时间范围查询
         if start_time and end_time:
-            start_datetime = datetime.strptime(start_time, '%Y-%m-%d %H:%M:%S')
-            end_datetime = datetime.strptime(end_time, '%Y-%m-%d %H:%M:%S')
+            start_datetime = datetime.strptime(str(start_time), '%Y-%m-%d %H:%M:%S')
+            end_datetime = datetime.strptime(str(end_time), '%Y-%m-%d %H:%M:%S')
             self.created_at = ("between", (start_datetime, end_datetime))

backend/app/api/v1/module_system/position/service.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-from typing import Any, Dict, List
+from typing import Any, Dict, List, Optional
 
 from app.core.base_schema import BatchSetAvailable
 from app.core.exceptions import CustomException
@@ -25,12 +25,8 @@ class PositionService:
         return PositionOutSchema.model_validate(position).model_dump()
 
     @classmethod
-    async def get_position_list_service(cls, auth: AuthSchema, search: PositionQueryParam, order_by: List[Dict] = None) -> List[Dict]:
+    async def get_position_list_service(cls, auth: AuthSchema, search: Optional[PositionQueryParam] = None, order_by: Optional[List[Dict[str, str]]] = None) -> List[Dict]:
         """获取岗位列表"""
-        if order_by:
-            order_by = eval(order_by)
-        else:
-            order_by = [{"order": "asc"}]
         position_list = await PositionCRUD(auth).get_list_crud(search=search.__dict__, order_by=order_by)
         return [PositionOutSchema.model_validate(position).model_dump() for position in position_list]