72cb1b6fe5
- shared/db.py: async engine + session factory - shared/models/base.py: DeclarativeBase + TimestampMixin - shared/models/trading.py: Strategy, Signal, Trade, Position, StrategyWeightHistory - shared/models/news.py: Article, ArticleSentiment - shared/models/learning.py: TradeOutcome, LearningAdjustment - shared/models/auth.py: User, UserCredential - shared/models/timeseries.py: MarketData, PortfolioSnapshot, StrategyMetric - Alembic async env.py with initial migration including TimescaleDB hypertables - 21 model tests covering enums, instantiation, metadata registration
71 lines
2 KiB
Python
71 lines
2 KiB
Python
"""Alembic environment — async-aware, imports all shared models."""
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import asyncio
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import os
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from logging.config import fileConfig
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from alembic import context
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from sqlalchemy import pool
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from sqlalchemy.ext.asyncio import async_engine_from_config
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# Import all models so metadata is populated for autogenerate.
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from shared.models import Base # noqa: F401
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import shared.models # noqa: F401 — triggers side-effect imports of every model
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config = context.config
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# Override sqlalchemy.url from environment if available.
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db_url = os.environ.get("TRADING_DATABASE_URL")
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if db_url:
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config.set_main_option("sqlalchemy.url", db_url)
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# Interpret the config file for Python logging.
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if config.config_file_name is not None:
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fileConfig(config.config_file_name)
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target_metadata = Base.metadata
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def run_migrations_offline() -> None:
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"""Run migrations in 'offline' mode (emit SQL without a live connection)."""
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url = config.get_main_option("sqlalchemy.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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)
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with context.begin_transaction():
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context.run_migrations()
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def do_run_migrations(connection) -> None: # noqa: ANN001
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context.configure(connection=connection, target_metadata=target_metadata)
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with context.begin_transaction():
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context.run_migrations()
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async def run_async_migrations() -> None:
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"""Run migrations in 'online' mode using an async engine."""
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connectable = async_engine_from_config(
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config.get_section(config.config_ini_section, {}),
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prefix="sqlalchemy.",
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poolclass=pool.NullPool,
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)
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async with connectable.connect() as connection:
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await connection.run_sync(do_run_migrations)
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await connectable.dispose()
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def run_migrations_online() -> None:
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"""Entry-point for online migrations — delegates to the async helper."""
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asyncio.run(run_async_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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