mirror of
https://github.com/fastapiadmin/FastapiAdmin.git
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refactor: 重构数据库连接模块,提高可维护性 docs: 更新README.md项目描述 style: 调整日志输出格式和内容 refactor: 优化中间件日志记录逻辑 style: 统一代码中的空行和导入顺序 refactor: 分离数据库引擎和会话创建逻辑 style: 清理未使用的导入和代码 refactor: 重命名数据库会话变量 style: 调整jinja2模板变量命名 refactor: 优化异常处理和日志记录 style: 统一字符串格式化方式 refactor: 优化redis连接错误处理 style: 调整注释格式和位置 refactor: 优化数据库连接配置 style: 清理多余空行和注释
534 lines
25 KiB
Python
534 lines
25 KiB
Python
# -*- coding:utf-8 -*-
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import io
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import os
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import zipfile
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from typing import Any, List, Dict, Literal, Optional
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from sqlglot.expressions import Add, Alter, Create, Delete, Drop, Expression, Insert, Table, TruncateTable, Update
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from sqlglot import parse as sqlglot_parse
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from app.config.setting import settings
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from app.core.logger import logger
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from app.core.exceptions import CustomException
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from app.utils.gen_util import GenUtils
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from app.utils.jinja2_template_util import Jinja2TemplateUtil
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from app.api.v1.module_system.auth.schema import AuthSchema
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from .schema import GenTableSchema, GenTableOutSchema, GenTableColumnSchema, GenTableColumnOutSchema
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from .param import GenTableQueryParam
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from .crud import GenTableColumnCRUD, GenTableCRUD
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def handle_service_exception(func):
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async def wrapper(*args, **kwargs):
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try:
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return await func(*args, **kwargs)
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except CustomException:
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raise
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except Exception as e:
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raise CustomException(msg=f'{func.__name__}执行失败: {str(e)}')
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return wrapper
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class GenTableService:
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"""代码生成业务表服务层"""
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@classmethod
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@handle_service_exception
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async def get_gen_table_detail_service(cls, auth: AuthSchema, table_id: int) -> Dict:
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"""获取业务表详细信息(含字段与其他表列表)。
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- 备注:优先解析`options`为`GenTableOptionSchema`,设置`parent_menu_id`等选项;保证`columns`与`tables`结构完整。
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"""
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gen_table = await cls.get_gen_table_by_id_service(auth, table_id)
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return GenTableOutSchema.model_validate(gen_table).model_dump()
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@classmethod
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@handle_service_exception
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async def get_gen_table_list_service(cls, auth: AuthSchema, search: GenTableQueryParam) -> List[Dict]:
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"""
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获取代码生成业务表列表信息。
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参数:
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- auth (AuthSchema): 认证信息。
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- search (GenTableQueryParam): 查询参数模型。
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返回:
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- List[Dict]: 包含业务表列表信息的字典列表。
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"""
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gen_table_list_result = await GenTableCRUD(auth=auth).get_gen_table_list(search)
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return [GenTableOutSchema.model_validate(obj).model_dump() for obj in gen_table_list_result]
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@classmethod
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@handle_service_exception
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async def get_gen_db_table_list_service(cls, auth: AuthSchema, search: GenTableQueryParam) -> list[Any]:
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"""获取数据库表列表(跨方言)。
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- 备注:返回已转换为字典的结构,适用于前端直接展示;排序参数保留扩展位但当前未使用。
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"""
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gen_db_table_list_result = await GenTableCRUD(auth=auth).get_db_table_list(search)
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return gen_db_table_list_result
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@classmethod
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@handle_service_exception
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async def get_gen_db_table_list_by_name_service(cls, auth: AuthSchema, table_names: List[str]) -> List[GenTableOutSchema]:
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"""根据表名称组获取数据库表信息。
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- 校验:如有不存在的表名,抛出明确异常;返回统一的`GenTableOutSchema`列表。
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"""
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# 验证输入参数
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if not table_names:
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raise CustomException(msg="表名列表不能为空")
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gen_db_table_list_result = await GenTableCRUD(auth).get_db_table_list_by_names(table_names)
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# 修复:将GenDBTableSchema对象转换为字典后再传递给GenTableOutSchema
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result = []
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for gen_table in gen_db_table_list_result:
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# 确保table_name不为None
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if gen_table.table_name is not None:
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result.append(GenTableOutSchema(**gen_table.model_dump()))
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return result
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@classmethod
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@handle_service_exception
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async def import_gen_table_service(cls, auth: AuthSchema, gen_table_list: List[GenTableOutSchema]) -> Literal[True] | None:
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"""导入表结构到生成器(持久化并初始化列)。
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- 备注:避免重复导入;为每列调用`GenUtils.init_column_field`填充默认属性,保留语义一致性。
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"""
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# 检查是否有表需要导入
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if not gen_table_list:
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raise CustomException(msg="导入的表结构不能为空")
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try:
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for table in gen_table_list:
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table_name = table.table_name
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# 检查表是否已存在
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existing_table = await GenTableCRUD(auth).get_gen_table_by_name(table_name)
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if existing_table:
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raise CustomException(msg=f"以下表已存在,不能重复导入: {table_name}")
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GenUtils.init_table(table)
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if not table.columns:
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table.columns = []
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add_gen_table = await GenTableCRUD(auth).add_gen_table(GenTableSchema.model_validate(table.model_dump()))
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gen_table_columns = await GenTableColumnCRUD(auth).get_gen_db_table_columns_by_name(table_name)
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if len(gen_table_columns) > 0:
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table.id = add_gen_table.id
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for column in gen_table_columns:
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column_schema = GenTableColumnSchema(
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table_id=table.id,
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column_name=column.column_name,
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column_comment=column.column_comment,
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column_type=column.column_type,
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column_length=column.column_length,
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column_default=column.column_default,
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is_pk=column.is_pk,
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is_increment=column.is_increment,
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is_nullable=column.is_nullable,
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is_unique=column.is_unique,
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sort=column.sort,
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python_type=column.python_type,
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python_field=column.python_field,
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)
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GenUtils.init_column_field(column_schema, table)
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await GenTableColumnCRUD(auth).create_gen_table_column_crud(column_schema)
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return True
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except Exception as e:
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raise CustomException(msg=f'导入失败, {str(e)}')
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@classmethod
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@handle_service_exception
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async def create_table_service(cls, auth: AuthSchema, sql: str) -> Literal[True] | None:
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"""创建表结构并导入至代码生成模块。
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- 校验:使用`sqlglot`确保仅包含`CREATE TABLE`语句;失败抛出明确异常。
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- 唯一性检查:在创建前检查该表是否已存在于数据库中。
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"""
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# 验证SQL非空
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if not sql or not sql.strip():
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raise CustomException(msg='SQL语句不能为空')
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try:
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# 解析SQL语句
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sql_statements = sqlglot_parse(sql, dialect=settings.DATABASE_TYPE)
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if not sql_statements:
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raise CustomException(msg='无法解析SQL语句,请检查SQL语法')
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# 校验sql语句是否为合法的建表语句
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if not cls.__is_valid_create_table(sql_statements):
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raise CustomException(msg='sql语句不是合法的建表语句')
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# 获取要创建的表名
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table_names = cls.__get_table_names(sql_statements)
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# 创建CRUD实例
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gen_table_crud = GenTableCRUD(auth=auth)
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# 检查每个表是否已存在
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for table_name in table_names:
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# 检查数据库中是否已存在该表
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if await gen_table_crud.check_table_exists(table_name):
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raise CustomException(msg=f'表 {table_name} 已存在,请检查并修改表名后重试')
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# 检查代码生成模块中是否已导入该表
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existing_table = await gen_table_crud.get_gen_table_by_name(table_name)
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if existing_table:
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raise CustomException(msg=f'表 {table_name} 已在代码生成模块中存在,请检查并修改表名后重试')
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# 表不存在,执行SQL语句创建表
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result = await gen_table_crud.create_table_by_sql(sql_statements)
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if not result:
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raise CustomException(msg=f'创建表 {table_names} 失败,请检查SQL语句')
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# 导入表结构到代码生成模块 - 简化逻辑,移除多余的None检查
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gen_table_list = await cls.get_gen_db_table_list_by_name_service(auth, table_names)
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import_result = await cls.import_gen_table_service(auth, gen_table_list)
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return import_result
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except Exception as e:
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raise CustomException(msg=f'创建表结构失败: {str(e)}')
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@classmethod
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def __is_valid_create_table(cls, sql_statements: List[Expression | None]) -> bool:
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"""
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校验SQL语句是否为合法的建表语句。
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参数:
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- sql_statements (List[Expression | None]): SQL的AST列表。
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返回:
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- bool: 校验结果。
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"""
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validate_create = [isinstance(sql_statement, Create) for sql_statement in sql_statements]
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validate_forbidden_keywords = [
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isinstance(
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sql_statement,
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(Add, Alter, Delete, Drop, Insert, TruncateTable, Update),
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)
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for sql_statement in sql_statements
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]
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if not any(validate_create) or any(validate_forbidden_keywords):
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return False
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return True
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@classmethod
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def __get_table_names(cls, sql_statements: List[Expression | None]) -> List[str]:
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"""
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获取SQL语句中所有的建表表名。
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参数:
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- sql_statements (List[Expression | None]): SQL的AST列表。
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返回:
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- List[str]: 建表表名列表。
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"""
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table_names = []
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for sql_statement in sql_statements:
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if isinstance(sql_statement, Create):
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table = sql_statement.find(Table)
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if table and table.name:
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table_names.append(table.name)
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return list(set(table_names))
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@classmethod
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@handle_service_exception
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async def update_gen_table_service(cls, auth: AuthSchema, data: GenTableSchema, table_id: int) -> Dict[str, Any]:
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"""编辑业务表信息(含选项与字段)。
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- 备注:将`params`序列化写入`options`以持久化;仅更新存在`id`的列,避免误创建。
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"""
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# 处理params为None的情况
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gen_table_info = await cls.get_gen_table_by_id_service(auth, table_id)
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if gen_table_info.id:
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try:
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# 直接调用edit_gen_table方法,它会在内部处理排除嵌套字段的逻辑
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result = await GenTableCRUD(auth).edit_gen_table(table_id, data)
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# 处理data.columns为None的情况
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if data.columns:
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for gen_table_column in data.columns:
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# 确保column有id字段
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if hasattr(gen_table_column, 'id') and gen_table_column.id:
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column_schema = GenTableColumnSchema(**gen_table_column.model_dump())
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await GenTableColumnCRUD(auth).update_gen_table_column_crud(gen_table_column.id, column_schema)
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return GenTableOutSchema.model_validate(result).model_dump()
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except Exception as e:
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raise CustomException(msg=str(e))
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else:
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raise CustomException(msg='业务表不存在')
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@classmethod
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@handle_service_exception
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async def delete_gen_table_service(cls, auth: AuthSchema, ids: List[int]) -> None:
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"""删除业务表信息(先删字段,再删表)。"""
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# 验证ID列表非空
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if not ids:
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raise CustomException(msg="ID列表不能为空")
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try:
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# 先删除相关的字段信息
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await GenTableColumnCRUD(auth=auth).delete_gen_table_column_by_table_id_crud(ids)
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# 再删除表信息
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await GenTableCRUD(auth=auth).delete_gen_table(ids)
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except Exception as e:
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raise CustomException(msg=str(e))
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@classmethod
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@handle_service_exception
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async def get_gen_table_by_id_service(cls, auth: AuthSchema, table_id: int) -> GenTableOutSchema:
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"""获取需要生成代码的业务表详细信息。
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- 备注:去除SQLAlchemy内部状态;将`None`值转为适配前端的默认值;解析`options`补充选项。
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"""
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gen_table = await GenTableCRUD(auth=auth).get_gen_table_by_id(table_id)
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if not gen_table:
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raise CustomException(msg='业务表不存在')
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result = GenTableOutSchema.model_validate(gen_table)
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return result
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@classmethod
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@handle_service_exception
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async def get_gen_table_all_service(cls, auth: AuthSchema) -> List[GenTableOutSchema]:
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"""获取所有业务表信息(列表)。"""
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gen_table_all = await GenTableCRUD(auth=auth).get_gen_table_all() or []
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result = []
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for gen_table in gen_table_all:
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try:
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# 简化转换,利用schema层的默认值处理None情况
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table_out = GenTableOutSchema.model_validate(gen_table)
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result.append(table_out)
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except Exception as e:
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logger.warning(f"转换业务表时出错: {str(e)}")
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continue
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return result
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@classmethod
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@handle_service_exception
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async def preview_code_service(cls, auth: AuthSchema, table_id: int) -> Dict[Any, Any]:
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"""
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预览代码(根据模板渲染内存结果)。
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- 备注:构建Jinja2上下文;根据模板类型与前端类型选择模板清单;返回文件名到内容映射。
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"""
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gen_table = GenTableOutSchema.model_validate(
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await GenTableCRUD(auth).get_gen_table_by_id(table_id)
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)
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await cls.set_pk_column(gen_table)
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env = Jinja2TemplateUtil.get_env()
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context = Jinja2TemplateUtil.prepare_context(gen_table)
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template_list = Jinja2TemplateUtil.get_template_list()
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preview_code_result = {}
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for template in template_list:
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try:
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render_content = await env.get_template(template).render_async(**context)
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preview_code_result[template] = render_content
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except Exception as e:
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logger.error(f"渲染模板 {template} 时出错: {str(e)}")
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# 即使某个模板渲染失败,也继续处理其他模板
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preview_code_result[template] = f"渲染错误: {str(e)}"
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return preview_code_result
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@classmethod
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@handle_service_exception
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async def generate_code_service(cls, auth: AuthSchema, table_name: str) -> bool:
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"""生成代码至指定路径(安全写入+可跳过覆盖)。
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- 安全:限制写入在项目根目录内;越界路径自动回退到项目根目录。
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"""
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# 验证表名非空
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if not table_name or not table_name.strip():
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raise CustomException(msg='表名不能为空')
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env = Jinja2TemplateUtil.get_env()
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render_info = await cls.__get_gen_render_info(auth, table_name)
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gen_table_schema = render_info[3]
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for template in render_info[0]:
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try:
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render_content = await env.get_template(template).render_async(**render_info[2])
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gen_path = cls.__get_gen_path(gen_table_schema, template)
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if not gen_path:
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raise CustomException(msg='【代码生成】生成路径为空')
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# 确保目录存在
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os.makedirs(os.path.dirname(gen_path), exist_ok=True)
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with open(gen_path, 'w', encoding='utf-8') as f:
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f.write(render_content)
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except Exception as e:
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raise CustomException(msg=f'渲染模板失败,表名:{gen_table_schema.table_name},详细错误信息:{str(e)}')
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return True
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@classmethod
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@handle_service_exception
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async def batch_gen_code_service(cls, auth: AuthSchema, table_names: List[str]) -> bytes:
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"""
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批量生成代码并打包为ZIP。
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- 备注:内存生成并压缩,兼容多模板类型;供下载使用。
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"""
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# 验证表名列表非空
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if not table_names:
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raise CustomException(msg="表名列表不能为空")
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zip_buffer = io.BytesIO()
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with zipfile.ZipFile(zip_buffer, 'w', zipfile.ZIP_DEFLATED) as zip_file:
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for table_name in table_names:
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if not table_name.strip():
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continue
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try:
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env = Jinja2TemplateUtil.get_env()
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render_info = await cls.__get_gen_render_info(auth, table_name)
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for template_file, output_file in zip(render_info[0], render_info[1]):
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render_content = await env.get_template(template_file).render_async(**render_info[2])
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zip_file.writestr(output_file, render_content)
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except Exception as e:
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logger.error(f"批量生成代码时处理表 {table_name} 出错: {str(e)}")
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# 继续处理其他表,不中断整个过程
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continue
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zip_data = zip_buffer.getvalue()
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zip_buffer.close()
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return zip_data
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@classmethod
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@handle_service_exception
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async def sync_db_service(cls, auth: AuthSchema, table_name: str) -> None:
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"""同步数据库表结构至生成器(保留用户配置)。
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- 备注:按数据库实际字段重建或更新生成器字段;保留字典/查询/展示等用户自定义属性;清理已删除字段。
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|
"""
|
|
# 验证表名非空
|
|
if not table_name or not table_name.strip():
|
|
raise CustomException(msg='表名不能为空')
|
|
|
|
gen_table = await GenTableCRUD(auth).get_gen_table_by_name(table_name)
|
|
if not gen_table:
|
|
raise CustomException(msg='业务表不存在')
|
|
table = GenTableOutSchema.model_validate(gen_table)
|
|
if not table.id:
|
|
raise CustomException(msg='业务表ID不能为空')
|
|
table_columns = table.columns or []
|
|
table_column_map = {column.column_name: column for column in table_columns}
|
|
# 确保db_table_columns始终是列表类型,避免None值
|
|
db_table_columns = await GenTableColumnCRUD(auth).get_gen_db_table_columns_by_name(table_name) or []
|
|
db_table_columns = [col for col in db_table_columns if col is not None]
|
|
db_table_column_names = [column.column_name for column in db_table_columns]
|
|
try:
|
|
for column in db_table_columns:
|
|
# 仅在缺省时初始化默认属性(包含 table_id 关联)
|
|
GenUtils.init_column_field(column, table)
|
|
# 利用schema层的默认值,移除多余的None检查
|
|
if column.column_name in table_column_map:
|
|
prev_column = table_column_map[column.column_name]
|
|
# 复用旧记录ID,确保执行更新
|
|
if hasattr(prev_column, 'id') and prev_column.id:
|
|
column.id = prev_column.id
|
|
|
|
# 保留用户配置的显示与查询属性 - 使用getattr确保安全访问
|
|
if hasattr(prev_column, 'dict_type') and prev_column.dict_type:
|
|
column.dict_type = prev_column.dict_type
|
|
if hasattr(prev_column, 'query_type') and prev_column.query_type:
|
|
column.query_type = prev_column.query_type
|
|
if hasattr(prev_column, 'html_type') and prev_column.html_type:
|
|
column.html_type = prev_column.html_type
|
|
|
|
# 保留关键用户自定义属性 - 安全处理is_pk
|
|
is_pk_bool = False
|
|
if hasattr(prev_column, 'is_pk'):
|
|
# 处理不同类型的is_pk值
|
|
if isinstance(prev_column.is_pk, bool):
|
|
is_pk_bool = prev_column.is_pk
|
|
else:
|
|
is_pk_bool = str(prev_column.is_pk) == '1'
|
|
|
|
# 安全处理nullable属性
|
|
if hasattr(prev_column, 'is_nullable') and not is_pk_bool:
|
|
column.is_nullable = prev_column.is_nullable
|
|
|
|
# 保留其他重要用户设置
|
|
if hasattr(prev_column, 'python_field'):
|
|
column.python_field = prev_column.python_field or column.python_field
|
|
|
|
if hasattr(column, 'id') and column.id:
|
|
await GenTableColumnCRUD(auth).update_gen_table_column_crud(column.id, column)
|
|
else:
|
|
await GenTableColumnCRUD(auth).create_gen_table_column_crud(column)
|
|
else:
|
|
# 设置table_id以确保新字段能正确关联到表
|
|
column.table_id = table.id
|
|
await GenTableColumnCRUD(auth).create_gen_table_column_crud(column)
|
|
del_columns = [column for column in table_columns if column.column_name not in db_table_column_names]
|
|
if del_columns:
|
|
for column in del_columns:
|
|
if hasattr(column, 'id') and column.id:
|
|
await GenTableColumnCRUD(auth).delete_gen_table_column_by_column_id_crud([column.id])
|
|
except Exception as e:
|
|
raise CustomException(msg=f'同步失败: {str(e)}')
|
|
|
|
@classmethod
|
|
async def set_pk_column(cls, gen_table: GenTableOutSchema) -> None:
|
|
"""设置主键列信息(主表/子表)。
|
|
- 备注:同时兼容`pk`布尔与`is_pk == '1'`字符串两种标识。
|
|
"""
|
|
if gen_table.columns:
|
|
for column in gen_table.columns:
|
|
# 修复:确保正确检查主键标识
|
|
if getattr(column, 'pk', False) or getattr(column, 'is_pk', '') == '1':
|
|
gen_table.pk_column = column
|
|
break
|
|
# 如果没有找到主键列且有列存在,使用第一个列作为主键
|
|
if gen_table.pk_column is None and gen_table.columns:
|
|
gen_table.pk_column = gen_table.columns[0]
|
|
|
|
@classmethod
|
|
async def __get_gen_render_info(cls, auth: AuthSchema, table_name: str) -> List[Any]:
|
|
"""
|
|
获取生成代码渲染模板相关信息。
|
|
|
|
参数:
|
|
- auth (AuthSchema): 认证对象。
|
|
- table_name (str): 业务表名称。
|
|
|
|
返回:
|
|
- List[Any]: [模板列表, 输出文件名列表, 渲染上下文, 业务表对象]。
|
|
|
|
异常:
|
|
- CustomException: 当业务表不存在或数据转换失败时抛出。
|
|
"""
|
|
gen_table_model = await GenTableCRUD(auth=auth).get_gen_table_by_name(table_name)
|
|
# 检查表是否存在
|
|
if gen_table_model is None:
|
|
raise CustomException(msg=f"业务表 {table_name} 不存在")
|
|
|
|
gen_table = GenTableOutSchema.model_validate(gen_table_model)
|
|
await cls.set_pk_column(gen_table)
|
|
context = Jinja2TemplateUtil.prepare_context(gen_table)
|
|
template_list = Jinja2TemplateUtil.get_template_list()
|
|
output_files = [Jinja2TemplateUtil.get_file_name(template, gen_table) for template in template_list]
|
|
|
|
return [template_list, output_files, context, gen_table]
|
|
|
|
@classmethod
|
|
def __get_gen_path(cls, gen_table: GenTableOutSchema, template: str) -> Optional[str]:
|
|
"""根据GenTableOutSchema对象和模板名称生成路径。"""
|
|
try:
|
|
file_name = Jinja2TemplateUtil.get_file_name(template, gen_table)
|
|
# 默认写入到项目根目录(backend的上一级)
|
|
project_root = str(settings.BASE_DIR.parent)
|
|
full_path = os.path.join(project_root, file_name)
|
|
|
|
# 确保路径在项目根目录内,防止路径遍历攻击
|
|
if not os.path.abspath(full_path).startswith(os.path.abspath(project_root)):
|
|
logger.warning(f"路径越界,回退到项目根目录: {file_name}")
|
|
# 回退到项目根目录下的generated文件夹
|
|
full_path = os.path.join(project_root, "generated", os.path.basename(file_name))
|
|
|
|
return full_path
|
|
except Exception as e:
|
|
logger.error(f"生成路径时出错: {str(e)}")
|
|
return None
|
|
|
|
|
|
class GenTableColumnService:
|
|
"""代码生成业务表字段服务层"""
|
|
|
|
@classmethod
|
|
@handle_service_exception
|
|
async def get_gen_table_column_list_by_table_id_service(cls, auth: AuthSchema, table_id: int) -> List[Dict[str, Any]]:
|
|
"""获取业务表字段列表信息(输出模型)。"""
|
|
gen_table_column_list_result = await GenTableColumnCRUD(auth).list_gen_table_column_crud({"table_id": table_id})
|
|
result = [GenTableColumnOutSchema.model_validate(gen_table_column).model_dump() for gen_table_column in gen_table_column_list_result]
|
|
return result |