64 lines
1.7 KiB
Python
64 lines
1.7 KiB
Python
"""Alembic environment configured for async SQLAlchemy.
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The DB URL and target metadata come from the application so migrations always
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match the models and the active configuration.
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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.ext.asyncio import async_engine_from_config
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import app.models # noqa: F401 (register models on Base.metadata)
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from alembic import context
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from app.core.config import settings
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from app.core.database import Base
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config = context.config
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config.set_main_option("sqlalchemy.url", settings.database_url)
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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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def run_migrations_offline() -> None:
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context.configure(
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url=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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render_as_batch=True,
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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) -> 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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render_as_batch=True, # needed for SQLite ALTER support
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)
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with context.begin_transaction():
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context.run_migrations()
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async def run_migrations_online() -> 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.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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if context.is_offline_mode():
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run_migrations_offline()
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else:
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asyncio.run(run_migrations_online())
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