024f174867
- Introduced a new Alembic migration to add a 'theme' column to the 'presentations' table. - Updated migration scripts to handle unversioned databases more gracefully. - Added a script for programmatically deleting local SQLite database files and running migrations. - Enhanced database initialization logic to conditionally run migrations based on environment settings.
103 lines
3.5 KiB
Python
103 lines
3.5 KiB
Python
import os
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import sys
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from logging.config import fileConfig
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from pathlib import Path
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from alembic import context
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from sqlalchemy import engine_from_config, pool
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from sqlmodel import SQLModel
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# Make sure all models can be imported when alembic runs standalone.
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sys.path.insert(0, str(Path(__file__).resolve().parents[1]))
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# Import every SQL model so they register with SQLModel.metadata before
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# autogenerate or migration execution reads it.
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from models.sql.async_presentation_generation_status import ( # noqa: F401, E402
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AsyncPresentationGenerationTaskModel,
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)
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from models.sql.image_asset import ImageAsset # noqa: F401, E402
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from models.sql.key_value import KeyValueSqlModel # noqa: F401, E402
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from models.sql.ollama_pull_status import OllamaPullStatus # noqa: F401, E402
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from models.sql.presentation import PresentationModel # noqa: F401, E402
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from models.sql.presentation_layout_code import ( # noqa: F401, E402
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PresentationLayoutCodeModel,
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)
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from models.sql.slide import SlideModel # noqa: F401, E402
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from models.sql.template import TemplateModel # noqa: F401, E402
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from models.sql.webhook_subscription import WebhookSubscription # noqa: F401, E402
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alembic_config = context.config
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if alembic_config.config_file_name is not None:
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fileConfig(alembic_config.config_file_name)
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target_metadata = SQLModel.metadata
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# alembic.ini sets this so Config validates; treat it as "unset" for URL resolution.
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_CLI_PLACEHOLDER_DB_URL = "sqlite:///placeholder"
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def _to_sync_database_url(database_url: str) -> str:
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# Preserve slash counts for sqlite URLs so Windows paths stay valid.
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if database_url.startswith("sqlite+aiosqlite:///"):
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return "sqlite:///" + database_url[len("sqlite+aiosqlite:///") :]
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if database_url.startswith("postgresql+asyncpg://"):
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return "postgresql://" + database_url[len("postgresql+asyncpg://") :]
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if database_url.startswith("mysql+aiomysql://"):
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return "mysql://" + database_url[len("mysql+aiomysql://") :]
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return database_url
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def _get_url() -> str:
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"""
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Prefer the URL injected by migrations.py via config.set_main_option,
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falling back to the DATABASE_URL environment variable or a local SQLite DB.
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"""
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configured = alembic_config.get_main_option("sqlalchemy.url")
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if configured and configured != _CLI_PLACEHOLDER_DB_URL:
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return configured
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from utils.db_utils import get_database_url_and_connect_args
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url, _ = get_database_url_and_connect_args()
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return _to_sync_database_url(url)
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def run_migrations_offline() -> None:
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"""Generate SQL script without connecting to the database."""
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url = _get_url()
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context.configure(
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url=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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compare_type=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 run_migrations_online() -> None:
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"""Run migrations against the live database."""
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configuration = dict(alembic_config.get_section(alembic_config.config_ini_section) or {})
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configuration["sqlalchemy.url"] = _get_url()
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connectable = engine_from_config(
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configuration,
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prefix="sqlalchemy.",
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poolclass=pool.NullPool,
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)
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with connectable.connect() as connection:
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context.configure(
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connection=connection,
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target_metadata=target_metadata,
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compare_type=True,
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)
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with context.begin_transaction():
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context.run_migrations()
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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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run_migrations_online()
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