DutyLog/alembic/env.py

import asyncio
from logging.config import fileConfig

from sqlalchemy import pool

from alembic import context
from sqlalchemy.engine import Connection
from sqlalchemy.ext.asyncio import async_engine_from_config

from src.dutylog.infrastructure.database.models.base import Base
from src.dutylog.infrastructure.database.models.user import User as User
from src.dutylog.infrastructure.utils.config import load_config

config = context.config

if config.config_file_name is not None:
    fileConfig(config.config_file_name)

app_config = load_config()
config.set_main_option("sqlalchemy.url", app_config.database.url)

target_metadata = Base.metadata

# other values from the config, defined by the needs of env.py,
# can be acquired:
# my_important_option = config.get_main_option("my_important_option")
# ... etc.

def do_run_migrations(connection: Connection):
    context.configure(connection=connection, target_metadata=target_metadata)
    with context.begin_transaction():
        context.run_migrations()


async def run_async_migrations():
    connectable = async_engine_from_config(
        config.get_section(config.config_ini_section, {}),
        prefix="sqlalchemy.",
        poolclass=pool.NullPool,
    )
    async with connectable.connect() as connection:
        await connection.run_sync(do_run_migrations)
    await connectable.dispose()


def run_migrations_online():
    asyncio.run(run_async_migrations())


def run_migrations_offline():
    url = config.get_main_option("sqlalchemy.url")
    context.configure(url=url, target_metadata=target_metadata, literal_binds=True)
    with context.begin_transaction():
        context.run_migrations()


if context.is_offline_mode():
    run_migrations_offline()
else:
    run_migrations_online()