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39 lines
1020 B
Python
39 lines
1020 B
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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import importlib
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from functools import lru_cache
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from typing import Any, Type, TypeVar
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from backend.common.exception import errors
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from backend.common.log import log
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T = TypeVar('T')
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@lru_cache(maxsize=512)
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def import_module_cached(module_path: str) -> Any:
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"""
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缓存导入模块
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:param module_path: 模块路径
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:return:
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"""
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return importlib.import_module(module_path)
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def dynamic_import_data_model(module_path: str) -> Type[T]:
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"""
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动态导入数据模型
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:param module_path: 模块路径，格式为 'module_path.class_name'
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:return:
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"""
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try:
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module_path, class_name = module_path.rsplit('.', 1)
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module = import_module_cached(module_path)
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return getattr(module, class_name)
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except (ImportError, AttributeError) as e:
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log.error(f'动态导入数据模型失败：{e}')
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raise errors.ServerError(msg='数据模型列动态解析失败，请联系系统超级管理员')
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