openassistant/migrations/env.py

from __future__ import with_statement
import asyncio
from logging.config import fileConfig
from sqlmodel import SQLModel, create_engine
from alembic import context
import sys
import pathlib

sys.path.append(str(pathlib.Path(__file__).resolve().parents[1]))

from config.database import db_settings
from app.models import *  # noqa; necessarily to import something from file where your models are stored

# this is the Alembic Config object, which provides
# access to the values within the .ini file in use.
config = context.config

# Interpret the config file for Python logging.
# This line sets up loggers basically.
fileConfig(config.config_file_name)

target_metadata = SQLModel.metadata

db_url = db_settings.database_url


# 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 run_migrations_offline():
    """Run migrations in 'offline' mode.
    This configures the context with just a URL
    and not an Engine, though an Engine is acceptable
    here as well.  By skipping the Engine creation
    we don't even need a DBAPI to be available.
    Calls to context.execute() here emit the given string to the
    script output.
    """
    context.configure(
        url=db_url,
        target_metadata=target_metadata,
        literal_binds=True,
        compare_type=True,
        dialect_opts={"paramstyle": "named"},
    )

    with context.begin_transaction():
        context.run_migrations()


async def run_migrations_online():
    """Run migrations in 'online' mode.
    In this scenario we need to create an Engine
    and associate a connection with the context.
    """
    connectable = create_engine(db_url, echo=True)

    with connectable.connect() as connection:
        context.configure(connection=connection, target_metadata=target_metadata)

        with context.begin_transaction():
            context.run_migrations()


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