tangweijie
00db791f91
- FastAPI 应用框架 - SQLAlchemy 异步数据库 - 事件采集和分析 API - Alembic 数据库迁移 - Docker 部署配置 - 完整的项目文档
78 lines
1.8 KiB
Python
78 lines
1.8 KiB
Python
"""
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Alembic 迁移环境配置
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"""
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import asyncio
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from logging.config import fileConfig
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from sqlalchemy import pool
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from sqlalchemy.engine import Connection
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from sqlalchemy.ext.asyncio import async_engine_from_config
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from alembic import context
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from src.config.settings import settings
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from src.config.database import Base
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from src.models import Event, User # 导入所有模型
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# Alembic Config 对象
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config = context.config
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# 设置数据库URL
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config.set_main_option("sqlalchemy.url", settings.DATABASE_URL)
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# 日志配置
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if config.config_file_name is not None:
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fileConfig(config.config_file_name)
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# 目标元数据
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target_metadata = Base.metadata
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def run_migrations_offline() -> None:
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"""离线模式运行迁移"""
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url = config.get_main_option("sqlalchemy.url")
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context.configure(
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url=url,
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target_metadata=target_metadata,
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literal_binds=True,
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dialect_opts={"paramstyle": "named"},
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)
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with context.begin_transaction():
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context.run_migrations()
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def do_run_migrations(connection: Connection) -> None:
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"""执行迁移"""
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context.configure(connection=connection, target_metadata=target_metadata)
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with context.begin_transaction():
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context.run_migrations()
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async def run_async_migrations() -> None:
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"""异步模式运行迁移"""
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connectable = async_engine_from_config(
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config.get_section(config.config_ini_section, {}),
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prefix="sqlalchemy.",
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poolclass=pool.NullPool,
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)
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async with connectable.connect() as connection:
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await connection.run_sync(do_run_migrations)
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await connectable.dispose()
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def run_migrations_online() -> None:
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"""在线模式运行迁移"""
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asyncio.run(run_async_migrations())
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if context.is_offline_mode():
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run_migrations_offline()
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else:
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run_migrations_online()
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