# -*- coding: utf-8 -*- import io import pandas as pd from fastapi import UploadFile from app.core.base_schema import AuthSchema, BatchSetAvailable from app.core.exceptions import CustomException from app.core.logger import logger from app.utils.excel_util import ExcelUtil from .crud import {{ class_name }}CRUD from .schema import ( {{ class_name }}CreateSchema, {{ class_name }}UpdateSchema, {{ class_name }}OutSchema, {{ class_name }}QueryParam ) class {{ class_name }}Service: """ {{ function_name }}服务层 """ @classmethod async def detail_service(cls, auth: AuthSchema, id: int) -> dict: """ 详情 参数: - auth: AuthSchema - 认证信息 - id: int - 数据ID 返回: - dict - 数据详情 """ obj = await {{ class_name }}CRUD(auth).get(id=id) if not obj: raise CustomException(msg="该数据不存在") return {{ class_name }}OutSchema.model_validate(obj).model_dump() @classmethod async def list_service(cls, auth: AuthSchema, search: {{ class_name }}QueryParam | None = None, order_by: list[dict] | None = None) -> list[dict]: """ 列表查询 参数: - auth: AuthSchema - 认证信息 - search: {{ class_name }}QueryParam | None - 查询参数 - order_by: list[dict] | None - 排序参数 返回: - list[dict] - 数据列表 """ search_dict = search.__dict__ if search else None obj_list = await {{ class_name }}CRUD(auth).list(search=search_dict, order_by=order_by) return [{{ class_name }}OutSchema.model_validate(obj).model_dump() for obj in obj_list] @classmethod async def page_service(cls, auth: AuthSchema, page_no: int, page_size: int, search: {{ class_name }}QueryParam | None = None, order_by: list[dict] | None = None) -> dict: """ 分页查询（数据库分页） 参数: - auth: AuthSchema - 认证信息 - page_no: int - 页码 - page_size: int - 每页数量 - search: {{ class_name }}QueryParam | None - 查询参数 - order_by: list[dict] | None - 排序参数 返回: - dict - 分页查询结果 """ search_dict = search.__dict__ if search else {} order_by_list = order_by or [{'{{ pk_column_name }}': 'asc'}] offset = (page_no - 1) * page_size result = await {{ class_name }}CRUD(auth).page( offset=offset, limit=page_size, order_by=order_by_list, search=search_dict, out_schema={{ class_name }}OutSchema ) return result @classmethod async def create_service(cls, auth: AuthSchema, data: {{ class_name }}CreateSchema) -> dict: """ 创建 参数: - auth: AuthSchema - 认证信息 - data: {{ class_name }}CreateSchema - 创建数据 返回: - dict - 创建结果 """ {% for column in columns %} {% if column.is_unique and column.column_name != 'uuid' %} obj = await {{ class_name }}CRUD(auth).get({{ column.column_name }}=data.{{ column.column_name }}) if obj: raise CustomException(msg='创建失败，{{ column.column_comment }}已存在') {% endif %} {% endfor %} obj = await {{ class_name }}CRUD(auth).create(data=data) return {{ class_name }}OutSchema.model_validate(obj).model_dump() @classmethod async def update_service(cls, auth: AuthSchema, id: int, data: {{ class_name }}UpdateSchema) -> dict: """ 更新 参数: - auth: AuthSchema - 认证信息 - id: int - 数据ID - data: {{ class_name }}UpdateSchema - 更新数据 返回: - dict - 更新结果 """ # 检查数据是否存在 obj = await {{ class_name }}CRUD(auth).get(id=id) if not obj: raise CustomException(msg='更新失败，该数据不存在') # 检查唯一性约束 {% for column in columns %} {% if column.is_unique and column.column_name != 'uuid' %} exist_obj = await {{ class_name }}CRUD(auth).get({{ column.column_name }}=data.{{ column.column_name }}) if exist_obj and getattr(exist_obj, '{{ pk_column_name }}') != id: raise CustomException(msg='更新失败，{{ column.column_comment }}重复') {% endif %} {% endfor %} obj = await {{ class_name }}CRUD(auth).update(id=id, data=data) return {{ class_name }}OutSchema.model_validate(obj).model_dump() @classmethod async def delete_service(cls, auth: AuthSchema, ids: list[int]) -> None: """ 删除 参数: - auth: AuthSchema - 认证信息 - ids: list[int] - 数据ID列表 返回: - None """ if len(ids) < 1: raise CustomException(msg='删除失败，删除对象不能为空') for id in ids: obj = await {{ class_name }}CRUD(auth).get(id=id) if not obj: raise CustomException(msg=f'删除失败，ID为{id}的数据不存在') await {{ class_name }}CRUD(auth).delete(ids=ids) @classmethod async def set_available_service(cls, auth: AuthSchema, data: BatchSetAvailable) -> None: """ 批量设置状态 参数: - auth: AuthSchema - 认证信息 - data: BatchSetAvailable - 批量设置状态数据 返回: - None """ await {{ class_name }}CRUD(auth).set(ids=data.ids, status=data.status) @staticmethod def batch_export_service(obj_list: list[dict]) -> bytes: """ 批量导出 参数: - obj_list: list[dict] - 数据列表 返回: - bytes - 导出的Excel文件内容 """ mapping_dict = { {% for column in columns %} {% if column.column_name not in ['uuid', 'tenant_id', 'updated_id', 'is_deleted', 'deleted_time', 'deleted_id'] %} '{{ column.column_name }}': '{{ column.column_comment }}', {% endif %} {% endfor %} } # 复制数据并转换状态 data = obj_list.copy() for item in data: # 处理状态 item["status"] = "启用" if item.get("status") == 0 else "停用" # 处理创建者 creator_info = item.get("created_id") if isinstance(creator_info, dict): item["created_id"] = creator_info.get("name", "未知") else: item["created_id"] = "未知" return ExcelUtil.export_list2excel(list_data=data, mapping_dict=mapping_dict) @classmethod async def batch_import_service(cls, auth: AuthSchema, file: UploadFile, update_support: bool = False) -> str: """ 批量导入 参数: - auth: AuthSchema - 认证信息 - file: UploadFile - 上传的Excel文件 - update_support: bool - 是否支持更新存在数据 返回: - str - 导入结果信息 """ header_dict = { {% for column in columns %} {% if column.column_name not in ['id', 'uuid', 'tenant_id', 'created_time', 'updated_time', 'created_id', 'updated_id', 'is_deleted', 'deleted_time', 'deleted_id'] and column.column_name != pk_column_name %} '{{ column.column_comment }}': '{{ column.column_name }}', {% endif %} {% endfor %} } try: # 读取Excel文件 contents = await file.read() df = pd.read_excel(io.BytesIO(contents)) await file.close() if df.empty: raise CustomException(msg="导入文件为空") # 检查表头是否完整 missing_headers = [header for header in header_dict.keys() if header not in df.columns] if missing_headers: raise CustomException(msg=f"导入文件缺少必要的列: {', '.join(missing_headers)}") # 重命名列名 df.rename(columns=header_dict, inplace=True) # 验证必填字段（非主键且不允许为空的列） {% for column in columns %} {% if column.is_nullable is false and column.is_pk is false and column.column_name not in ['id', 'uuid', 'tenant_id', 'created_time', 'updated_time', 'created_id', 'updated_id', 'is_deleted', 'deleted_time', 'deleted_id'] %} errors = [] missing_rows = df[df['{{ column.column_name }}'].isnull()].index.tolist() if missing_rows: field_name = [k for k,v in header_dict.items() if v == '{{ column.column_name }}'][0] rows_str = "、".join([str(i+1) for i in missing_rows]) errors.append(f"{field_name}不能为空，第{rows_str}行") if errors: raise CustomException(msg=f"导入失败，以下行缺少必要字段：\n{'; '.join(errors)}") {% endif %} {% endfor %} error_msgs = [] success_count = 0 count = 0 for _index, row in df.iterrows(): count += 1 try: data = { {% for column in columns %} {% if column.column_name not in ['id', 'uuid', 'tenant_id', 'created_time', 'updated_time', 'created_id', 'updated_id', 'is_deleted', 'deleted_time', 'deleted_id'] and column.column_name != pk_column_name %} "{{ column.column_name }}": row['{{ column.column_name }}'], {% endif %} {% endfor %} } # 使用CreateSchema做校验后入库 create_schema = {{ class_name }}CreateSchema.model_validate(data) # 检查唯一性约束 {% for column in columns %} {% if column.is_unique and column.column_name not in ['uuid', 'tenant_id', 'created_time', 'updated_time', 'created_id', 'updated_id', 'is_deleted', 'deleted_time', 'deleted_id'] %} exists_obj = await {{ class_name }}CRUD(auth).get({{ column.column_name }}=create_schema.{{ column.column_name }}) if exists_obj: if update_support: await {{ class_name }}CRUD(auth).update(id=getattr(exists_obj, '{{ pk_column_name }}'), data=create_schema) success_count += 1 else: error_msgs.append(f"第{count}行: {{ column.column_comment }} {create_schema.{{ column.column_name }}} 已存在") continue {% endif %} {% endfor %} await {{ class_name }}CRUD(auth).create(data=create_schema) success_count += 1 except Exception as e: error_msgs.append(f"第{count}行: {str(e)}") continue result = f"成功导入 {success_count} 条数据" if error_msgs: result += "\n错误信息:\n" + "\n".join(error_msgs) return result except Exception as e: logger.error(f"批量导入失败: {str(e)}") raise CustomException(msg=f"导入失败: {str(e)}") @staticmethod def import_template_download_service() -> bytes: """ 下载导入模板 返回: - bytes - Excel文件的二进制数据 """ header_list = [ {% for column in columns %} {% if column.column_name not in ['id', 'uuid', 'tenant_id', 'created_time', 'updated_time', 'created_id', 'updated_id', 'is_deleted', 'deleted_time', 'deleted_id'] and column.column_name != pk_column_name %} '{{ column.column_comment }}', {% endif %} {% endfor %} ] selector_header_list = [] option_list = [] {% for column in columns %} {% if (column.html_type == 'select' or column.html_type == 'radio') and column.dict_type and column.column_name not in ['id', 'uuid', 'tenant_id', 'created_time', 'updated_time', 'created_id', 'updated_id', 'is_deleted', 'deleted_time', 'deleted_id'] and column.column_name != pk_column_name %} selector_header_list.append('{{ column.column_comment }}') option_list.append({'{{ column.column_comment }}': []}) {% endif %} {% endfor %} return ExcelUtil.get_excel_template( header_list=header_list, selector_header_list=selector_header_list, option_list=option_list )