presenton/servers/fastapi/alembic/env.py

94 lines
3 KiB
Python

import os
import sys
from logging.config import fileConfig
from pathlib import Path
from alembic import context
from sqlalchemy import engine_from_config, pool
from sqlmodel import SQLModel
# Make sure all models can be imported when alembic runs standalone.
sys.path.insert(0, str(Path(__file__).resolve().parents[1]))
# Import every SQL model so they register with SQLModel.metadata before
# autogenerate or migration execution reads it.
from models.sql.async_presentation_generation_status import ( # noqa: F401, E402
AsyncPresentationGenerationTaskModel,
)
from models.sql.image_asset import ImageAsset # noqa: F401, E402
from models.sql.key_value import KeyValueSqlModel # noqa: F401, E402
from models.sql.ollama_pull_status import OllamaPullStatus # noqa: F401, E402
from models.sql.presentation import PresentationModel # noqa: F401, E402
from models.sql.presentation_layout_code import ( # noqa: F401, E402
PresentationLayoutCodeModel,
)
from models.sql.slide import SlideModel # noqa: F401, E402
from models.sql.template import TemplateModel # noqa: F401, E402
from models.sql.webhook_subscription import WebhookSubscription # noqa: F401, E402
alembic_config = context.config
if alembic_config.config_file_name is not None:
fileConfig(alembic_config.config_file_name)
target_metadata = SQLModel.metadata
def _get_url() -> str:
"""
Prefer the URL injected by migrations.py via config.set_main_option,
falling back to the DATABASE_URL environment variable or a local SQLite DB.
"""
configured = alembic_config.get_main_option("sqlalchemy.url")
if configured:
return configured
from utils.db_utils import get_database_url_and_connect_args
url, _ = get_database_url_and_connect_args()
return (
url
.replace("sqlite+aiosqlite://", "sqlite:///")
.replace("postgresql+asyncpg://", "postgresql://")
.replace("mysql+aiomysql://", "mysql://")
)
def run_migrations_offline() -> None:
"""Generate SQL script without connecting to the database."""
url = _get_url()
context.configure(
url=url,
target_metadata=target_metadata,
literal_binds=True,
dialect_opts={"paramstyle": "named"},
compare_type=True,
)
with context.begin_transaction():
context.run_migrations()
def run_migrations_online() -> None:
"""Run migrations against the live database."""
configuration = dict(alembic_config.get_section(alembic_config.config_ini_section) or {})
configuration["sqlalchemy.url"] = _get_url()
connectable = engine_from_config(
configuration,
prefix="sqlalchemy.",
poolclass=pool.NullPool,
)
with connectable.connect() as connection:
context.configure(
connection=connection,
target_metadata=target_metadata,
compare_type=True,
)
with context.begin_transaction():
context.run_migrations()
if context.is_offline_mode():
run_migrations_offline()
else:
run_migrations_online()