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dj
80 lines
2.4 KiB
Python
80 lines
2.4 KiB
Python
# - *- coding: utf- 8 - *-
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import asyncio
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from contextlib import AbstractAsyncContextManager
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from logging.config import fileConfig
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from alembic import context
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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 AsyncConnection, AsyncEngine, async_engine_from_config
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from tgbot.database.core import Base
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# Импортируем модели, чтобы Alembic видел все таблицы
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import tgbot.database # noqa: F401
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config = context.config
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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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target_metadata = Base.metadata
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# Настройка миграций без подключения к базе
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def run_migrations_offline() -> None:
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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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compare_type=True,
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)
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with context.begin_transaction():
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context.run_migrations()
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# Настройка миграций поверх готового соединения
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def do_run_migrations(connection: Connection) -> None:
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context.configure(
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connection=connection,
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target_metadata=target_metadata,
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compare_type=True,
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)
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with context.begin_transaction():
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context.run_migrations()
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# Создаем async-engine и передаем Alembic синхронное соединение внутри run_sync
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async def run_async_migrations() -> None:
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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_context(connectable) as connection:
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await connection.run_sync(do_run_migrations)
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await connectable.dispose()
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# Отдельная обертка помогает IDE правильно определить async context manager
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def connectable_context(connectable: AsyncEngine) -> AbstractAsyncContextManager[AsyncConnection]:
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return connectable.connect()
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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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external_connection = config.attributes.get("connection")
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if external_connection is not None:
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do_run_migrations(external_connection)
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else:
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asyncio.run(run_async_migrations())
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