generated from coulomb/repo-seed
- alembic init -t async migrations - alembic.ini: dev fallback URL postgresql+asyncpg://…:5433/actcore; ACTCORE_DB_URL env var overrides at runtime; src/ added to sys.path - migrations/env.py: reads ACTCORE_DB_URL, wires target_metadata to Base.metadata - src/activity_core/db.py: DeclarativeBase subclass + make_engine() helper Tool choice: Alembic + SQLAlchemy[asyncio] (already declared in pyproject.toml). Migrations run with: ACTCORE_DB_URL=... alembic upgrade head Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
20 lines
571 B
Python
20 lines
571 B
Python
"""SQLAlchemy async engine and declarative base for activity-core."""
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import os
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from sqlalchemy.ext.asyncio import AsyncEngine, create_async_engine
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from sqlalchemy.orm import DeclarativeBase
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class Base(DeclarativeBase):
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pass
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def make_engine(url: str | None = None) -> AsyncEngine:
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"""Return an async engine. Falls back to ACTCORE_DB_URL, then the dev default."""
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resolved = url or os.environ.get(
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"ACTCORE_DB_URL",
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"postgresql+asyncpg://actcore:actcore@localhost:5433/actcore",
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)
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return create_async_engine(resolved, echo=False)
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