Files
fastapi_best_architecture/backend/utils/dynamic_config.py
Wu Clan 565800d8cf Fix dynamic config cache serialization (#1075)
* Fix dynamic config cache serialization

* Fix lint
2026-02-13 14:30:38 +08:00

109 lines
3.1 KiB
Python

from collections.abc import Callable
from sqlalchemy import inspect
from sqlalchemy.ext.asyncio import AsyncSession
from backend.core.conf import settings
from backend.database.db import async_engine
from backend.plugin.config.enums import ConfigType
from backend.plugin.config.service.config_service import config_service
from backend.utils.serializers import select_list_serialize
_sys_config_table_exists: bool | None = None
async def check_sys_config_table_exists() -> bool:
"""检查 sys_config 表是否存在"""
global _sys_config_table_exists
if _sys_config_table_exists is None:
async with async_engine.connect() as conn:
_sys_config_table_exists = await conn.run_sync(lambda c: inspect(c).has_table('sys_config', schema=None))
return _sys_config_table_exists
def _to_bool(value: str) -> bool:
"""将字符串转换为布尔值"""
return value == 'true'
async def _load_config(
db: AsyncSession,
config_type: ConfigType,
mapping: dict[str, Callable],
status_key: str,
) -> None:
"""
根据配置类型加载配置
:param db: 数据库会话
:param config_type: 配置类型枚举
:param mapping: 配置映射 {config_key: converter}
:param status_key: 状态键
:return:
"""
if not await check_sys_config_table_exists():
return
dynamic_config = await config_service.get_all(db=db, type=config_type)
if not dynamic_config:
return
config_list = select_list_serialize(dynamic_config) if hasattr(dynamic_config[0], '__table__') else dynamic_config
configs = {dc['key']: dc['value'] for dc in config_list}
if configs.get(status_key, '1') == '0':
return
for config_key, converter in mapping.items():
if config_key in configs:
setattr(settings, config_key, converter(configs[config_key]))
async def load_user_security_config(db: AsyncSession) -> None:
"""
获取用户安全配置
:param db: 数据库会话
:return:
"""
mapping = {
'USER_LOCK_THRESHOLD': int,
'USER_LOCK_SECONDS': int,
'USER_PASSWORD_EXPIRY_DAYS': int,
'USER_PASSWORD_REMINDER_DAYS': int,
'USER_PASSWORD_HISTORY_CHECK_COUNT': int,
'USER_PASSWORD_MIN_LENGTH': int,
'USER_PASSWORD_MAX_LENGTH': int,
'USER_PASSWORD_REQUIRE_SPECIAL_CHAR': _to_bool,
}
await _load_config(db, ConfigType.user_security, mapping, 'USER_SECURITY_CONFIG_STATUS')
async def load_login_config(db: AsyncSession) -> None:
"""
获取登录配置
:param db: 数据库会话
:return:
"""
mapping = {
'LOGIN_CAPTCHA_ENABLED': _to_bool,
}
await _load_config(db, ConfigType.login, mapping, 'LOGIN_CONFIG_STATUS')
async def load_email_config(db: AsyncSession) -> None:
"""
获取邮箱配置
:param db: 数据库会话
:return:
"""
mapping = {
'EMAIL_HOST': str,
'EMAIL_PORT': int,
'EMAIL_SSL': _to_bool,
'EMAIL_USERNAME': str,
'EMAIL_PASSWORD': str,
}
await _load_config(db, ConfigType.email, mapping, 'EMAIL_CONFIG_STATUS')