pesco-ncr/backend/alembic/env.py

from logging.config import fileConfig

from alembic import context
from sqlalchemy import create_engine, pool

from app.config import get_settings
from app.models import Base

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

# The database URL is passed directly to SQLAlchemy rather than through
# config.set_main_option(): ConfigParser treats '%' as interpolation syntax,
# so URL-encoded password characters (e.g. '!' -> '%21') would blow up.
target_metadata = Base.metadata


def run_migrations_offline() -> None:
    context.configure(
        url=get_settings().sync_database_url,
        target_metadata=target_metadata,
        literal_binds=True,
        dialect_opts={"paramstyle": "named"},
    )
    with context.begin_transaction():
        context.run_migrations()


def run_migrations_online() -> None:
    connectable = create_engine(
        get_settings().sync_database_url, poolclass=pool.NullPool
    )
    with connectable.connect() as connection:
        context.configure(connection=connection, target_metadata=target_metadata)
        with context.begin_transaction():
            context.run_migrations()
    connectable.dispose()


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