mirror of
https://github.com/fastapi-practices/fastapi-best-architecture.git
synced 2026-09-21 21:15:13 +00:00
Dylan
cd48bb4210
* feat: i18n support * Optimize i18n * Update the locale in the code * Update the zh-CN file * Update the en-US file * Update the reload filter * Update locale success plugin value * Fix lint * Update pydantic error message translation * Update to minimal implementation * Fix minimal missing code
84 lines
2.3 KiB
Python
84 lines
2.3 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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import glob
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import json
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import os
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from pathlib import Path
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from typing import Any
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import yaml
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from backend.core.conf import settings
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from backend.core.path_conf import LOCALE_DIR
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class I18n:
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"""国际化管理器"""
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def __init__(self):
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self.locales: dict[str, dict[str, Any]] = {}
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self.current_language: str = settings.I18N_DEFAULT_LANGUAGE
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def load_locales(self):
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"""加载语言文本"""
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patterns = [
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os.path.join(LOCALE_DIR, '*.json'),
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os.path.join(LOCALE_DIR, '*.yaml'),
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os.path.join(LOCALE_DIR, '*.yml'),
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]
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lang_files = []
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for pattern in patterns:
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lang_files.extend(glob.glob(pattern))
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for lang_file in lang_files:
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with open(lang_file, 'r', encoding='utf-8') as f:
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lang = Path(lang_file).stem
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file_type = Path(lang_file).suffix[1:]
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match file_type:
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case 'json':
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self.locales[lang] = json.loads(f.read())
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case 'yaml' | 'yml':
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self.locales[lang] = yaml.full_load(f.read())
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def t(self, key: str, default: Any | None = None, **kwargs) -> str:
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"""
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翻译函数
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:param key: 目标文本键，支持点分隔，例如 'response.success'
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:param default: 目标语言文本不存在时的默认文本
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:param kwargs: 目标文本中的变量参数
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:return:
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"""
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keys = key.split('.')
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try:
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translation = self.locales[self.current_language]
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except KeyError:
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keys = 'error.language_not_found'
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translation = self.locales[settings.I18N_DEFAULT_LANGUAGE]
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for k in keys:
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if isinstance(translation, dict) and k in list(translation.keys()):
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translation = translation[k]
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else:
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# Pydantic 兼容
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if keys[0] == 'pydantic':
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translation = None
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else:
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translation = key
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if translation and kwargs:
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translation = translation.format(**kwargs)
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return translation or default
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# 创建 i18n 单例
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i18n = I18n()
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# 创建翻译函数实例
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t = i18n.t
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