223 lines
10 KiB
Django/Jinja
223 lines
10 KiB
Django/Jinja
# -*- coding: utf-8 -*-
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from typing import Any
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from fastapi import UploadFile
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from sqlalchemy.ext.asyncio import AsyncSession
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from app.core.base_schema import AuthSchema, BatchSetAvailable, PageResultSchema
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from app.core.exceptions import CustomException
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from app.core.logger import logger
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from app.utils.common_util import search_to_dict
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from app.utils.excel_util import ExcelUtil
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from .crud import {{ class_name }}CRUD
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from .schema import (
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{{ class_name }}CreateSchema,
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{{ class_name }}OutSchema,
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{{ class_name }}QueryParam,
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{{ class_name }}UpdateSchema,
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)
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class {{ class_name }}Service:
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"""{{ function_name }}模块服务层"""
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def __init__(self, auth: AuthSchema, db: AsyncSession) -> None:
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self.auth = auth
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self.db = db
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async def detail(self, id: int) -> {{ class_name }}OutSchema:
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obj = await {{ class_name }}CRUD(self.auth, self.db).get(id=id)
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if not obj:
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raise CustomException(msg="该数据不存在")
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return {{ class_name }}OutSchema.model_validate(obj)
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async def get_list(
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self,
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search: {{ class_name }}QueryParam | None = None,
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order_by: list[dict[str, str]] | None = None,
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) -> list[{{ class_name }}OutSchema]:
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obj_list = await {{ class_name }}CRUD(self.auth, self.db).get_list(search=search_to_dict(search), order_by=order_by)
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return [{{ class_name }}OutSchema.model_validate(obj) for obj in obj_list]
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async def page(
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self,
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page_no: int,
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page_size: int,
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search: {{ class_name }}QueryParam | None = None,
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order_by: list[dict[str, str]] | None = None,
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) -> PageResultSchema[{{ class_name }}OutSchema]:
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offset = (page_no - 1) * page_size
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return await {{ class_name }}CRUD(self.auth, self.db).page(
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offset=offset,
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limit=page_size,
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order_by=order_by or [{"{{ pk_column_name }}": "asc"}],
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search=search_to_dict(search, {}),
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out_schema={{ class_name }}OutSchema,
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)
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async def create(self, data: {{ class_name }}CreateSchema) -> {{ class_name }}OutSchema:
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{% for column in columns %}
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{% if column.is_unique and column.column_name != 'uuid' %}
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obj = await {{ class_name }}CRUD(self.auth, self.db).get({{ column.column_name }}=data.{{ column.column_name }})
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if obj:
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raise CustomException(msg="创建失败，{{ column.column_comment }}已存在")
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{% endif %}
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{% endfor %}
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obj = await {{ class_name }}CRUD(self.auth, self.db).create(data=data)
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return {{ class_name }}OutSchema.model_validate(obj)
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async def update(self, id: int, data: {{ class_name }}UpdateSchema) -> {{ class_name }}OutSchema:
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obj = await {{ class_name }}CRUD(self.auth, self.db).get(id=id)
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if not obj:
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raise CustomException(msg="更新失败，该数据不存在")
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{% for column in columns %}
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{% if column.is_unique and column.column_name != 'uuid' %}
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exist_obj = await {{ class_name }}CRUD(self.auth, self.db).get({{ column.column_name }}=data.{{ column.column_name }})
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if exist_obj and exist_obj.{{ pk_column_name }} != id:
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raise CustomException(msg="更新失败，{{ column.column_comment }}重复")
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{% endif %}
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{% endfor %}
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obj = await {{ class_name }}CRUD(self.auth, self.db).update(id=id, data=data)
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return {{ class_name }}OutSchema.model_validate(obj)
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async def delete(self, ids: list[int]) -> None:
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if not ids:
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raise CustomException(msg="删除失败，删除对象不能为空")
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objs = await {{ class_name }}CRUD(self.auth, self.db).get_list(search={"{{ pk_column_name }}": ("in", ids)})
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obj_map = {o.{{ pk_column_name }}: o for o in objs}
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for id_ in ids:
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if id_ not in obj_map:
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raise CustomException(msg="删除失败，该数据不存在")
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await {{ class_name }}CRUD(self.auth, self.db).delete(ids=ids)
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async def set_available(self, data: BatchSetAvailable) -> None:
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await {{ class_name }}CRUD(self.auth, self.db).set(ids=data.ids, status=data.status)
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@staticmethod
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def batch_export(obj_list: list[dict[str, Any]]) -> bytes:
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mapping_dict = {
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{% for column in columns %}
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{% if column.column_name not in ['uuid', 'tenant_id', 'updated_id', 'is_deleted', 'deleted_time', 'deleted_id'] %}
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'{{ column.column_name }}': '{{ column.column_comment }}',
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{% endif %}
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{% endfor %}
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}
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data = obj_list.copy()
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for item in data:
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item["status"] = "启用" if item.get("status") == 0 else "停用"
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creator_info = item.get("created_id")
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if isinstance(creator_info, dict):
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item["created_id"] = creator_info.get("name", "未知")
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else:
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item["created_id"] = "未知"
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return ExcelUtil.export_list2excel(list_data=data, mapping_dict=mapping_dict)
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async def batch_import(self, file: UploadFile, update_support: bool = False) -> str:
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header_dict = {
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{% for column in columns %}
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{% 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 %}
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'{{ column.column_comment }}': '{{ column.column_name }}',
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{% endif %}
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{% endfor %}
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}
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try:
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contents = await file.read()
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rows = ExcelUtil.read_excel_to_dicts(contents)
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await file.close()
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if not rows:
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raise CustomException(msg="导入文件为空")
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missing_headers = [h for h in header_dict if h not in rows[0]]
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if missing_headers:
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raise CustomException(msg=f"导入文件缺少必要的列: {', '.join(missing_headers)}")
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# 将中文字段名映射为英文字段
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mapped_rows = []
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for row in rows:
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mapped_rows.append({en: row.get(ch) for ch, en in header_dict.items()})
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required_fields = [
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{% for column in columns %}
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{% 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'] %}
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"{{ column.column_name }}",
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{% endif %}
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{% endfor %}
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]
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errors = []
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for field in required_fields:
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missing_indices = [i + 1 for i, r in enumerate(mapped_rows) if r.get(field) is None]
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if missing_indices:
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field_name = next((k for k, v in header_dict.items() if v == field), field)
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rows_str = "、".join(str(i) for i in missing_indices)
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errors.append(f"{field_name}不能为空，第{rows_str}行")
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if errors:
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raise CustomException(msg=f"导入失败，以下行缺少必要字段：\n{'; '.join(errors)}")
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error_msgs = []
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success_count = 0
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for i, row in enumerate(mapped_rows, start=1):
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try:
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create_schema = {{ class_name }}CreateSchema.model_validate(row)
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{% for column in columns %}
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{% 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'] %}
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exists_obj = await {{ class_name }}CRUD(self.auth, self.db).get({{ column.column_name }}=create_schema.{{ column.column_name }})
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if exists_obj:
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if update_support:
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await {{ class_name }}CRUD(self.auth, self.db).update(id=getattr(exists_obj, '{{ pk_column_name }}'), data=create_schema)
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success_count += 1
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else:
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error_msgs.append(f"第{i}行: {{ column.column_comment }} {create_schema.{{ column.column_name }}} 已存在")
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continue
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{% endif %}
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{% endfor %}
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await {{ class_name }}CRUD(self.auth, self.db).create(data=create_schema)
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success_count += 1
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except Exception as e:
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error_msgs.append(f"第{i}行: {e!s}")
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continue
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result = f"成功导入 {success_count} 条数据"
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if error_msgs:
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result += "\n错误信息:\n" + "\n".join(error_msgs)
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return result
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except Exception as e:
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logger.error(f"批量导入失败: {e!s}")
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raise CustomException(msg=f"导入失败: {e!s}")
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@staticmethod
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def import_template_download() -> bytes:
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header_list = [
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{% for column in columns %}
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{% 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 %}
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'{{ column.column_comment }}',
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{% endif %}
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{% endfor %}
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]
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selector_header_list = []
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option_list = []
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{% for column in columns %}
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{% 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 %}
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selector_header_list.append('{{ column.column_comment }}')
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option_list.append({'{{ column.column_comment }}': []})
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{% endif %}
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{% endfor %}
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return ExcelUtil.get_excel_template(
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header_list=header_list,
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selector_header_list=selector_header_list,
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option_list=option_list,
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)
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