Joey
54 lines
1.6 KiB
Python
54 lines
1.6 KiB
Python
"""Alembic 迁移环境。URL 从 server/config/settings.py 读取，支持 autogenerate。"""
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from __future__ import annotations
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import sys
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from pathlib import Path
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from alembic import context
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from sqlalchemy import create_engine, pool
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# 让 `from config import ...` / `from db import ...` / `import models` 可解析
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SERVER_DIR = Path(__file__).resolve().parents[1]
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if str(SERVER_DIR) not in sys.path:
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sys.path.insert(0, str(SERVER_DIR))
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from config import get_settings # noqa: E402
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from db import Base # noqa: E402
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import models # noqa: E402,F401 确保所有模型注册到 Base.metadata
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config = context.config
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target_metadata = Base.metadata
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def _sync_url(url: str) -> str:
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"""异步 URL → 同步 URL（迁移用同步引擎跑更稳）。"""
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return url.replace("+aiosqlite", "").replace("+asyncpg", "")
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def run_migrations_offline() -> None:
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context.configure(
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url=_sync_url(get_settings().database_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 run_migrations_online() -> None:
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connectable = create_engine(
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_sync_url(get_settings().database_url),
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poolclass=pool.NullPool,
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)
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with connectable.connect() as connection:
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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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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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