73 lines
1.9 KiB
Python
73 lines
1.9 KiB
Python
"""Alembic environment using the application's async PostgreSQL settings."""
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from __future__ import annotations
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import asyncio
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import selectors
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import sys
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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 async_engine_from_config
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from ragcore.config import get_settings
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config = context.config
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target_metadata = None
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def _database_url() -> str:
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return get_settings().database_url
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def _set_database_url() -> None:
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config.set_main_option("sqlalchemy.url", _database_url().replace("%", "%%"))
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def run_migrations_offline() -> None:
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"""Run migrations without creating a database connection."""
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_set_database_url()
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context.configure(
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url=_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 do_run_migrations(connection: Connection) -> None:
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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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_set_database_url()
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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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if sys.platform == "win32":
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asyncio.run(
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run_async_migrations(),
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loop_factory=lambda: asyncio.SelectorEventLoop(selectors.SelectSelector()),
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)
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else:
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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() |