nearxos
6185b9b85a
Self-hosted, Docker-based agentic troubleshooting platform: FastAPI backend + LangGraph agent, Next.js UI, tiered LLM routing (local Ollama -> Gemini -> DeepSeek -> OpenRouter), MCP server manager, encrypted device credentials, RBAC, audit log, project-memory + Obsidian integrations, and editable troubleshooting decision rules tuned for the GeneseasX vessel stack. Co-authored-by: Cursor <cursoragent@cursor.com>
66 lines
2.7 KiB
Python
66 lines
2.7 KiB
Python
"""Async SQLAlchemy engine, session factory, and Base model."""
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from __future__ import annotations
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from collections.abc import AsyncGenerator
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from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
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from sqlalchemy.orm import DeclarativeBase
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from app.config import settings
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engine = create_async_engine(settings.database_url, echo=False, pool_pre_ping=True)
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SessionLocal = async_sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)
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class Base(DeclarativeBase):
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pass
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async def get_db() -> AsyncGenerator[AsyncSession, None]:
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async with SessionLocal() as session:
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yield session
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async def init_db() -> None:
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"""Create tables and apply lightweight dev migrations."""
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from app import models # noqa: F401
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from sqlalchemy import text
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async with engine.begin() as conn:
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await conn.run_sync(Base.metadata.create_all)
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# Dev migration: locations → vessels (rename legacy table/columns)
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await conn.execute(
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text(
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"""
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DO $$
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BEGIN
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IF EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'locations')
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AND NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'vessels')
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THEN
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ALTER TABLE locations RENAME TO vessels;
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END IF;
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IF EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name = 'devices' AND column_name = 'location_id')
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THEN
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ALTER TABLE devices RENAME COLUMN location_id TO vessel_id;
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END IF;
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IF EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name = 'tasks' AND column_name = 'location_id')
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THEN
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ALTER TABLE tasks RENAME COLUMN location_id TO vessel_id;
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END IF;
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IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_name = 'devices' AND column_name = 'catalog_key')
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THEN
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ALTER TABLE devices ADD COLUMN catalog_key VARCHAR(64);
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END IF;
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END $$;
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"""
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)
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)
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# Indexes for hot query paths (idempotent; covers pre-existing DBs).
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for stmt in (
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"CREATE INDEX IF NOT EXISTS ix_tasks_vessel_id ON tasks (vessel_id)",
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"CREATE INDEX IF NOT EXISTS ix_task_events_task_id_id ON task_events (task_id, id)",
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"CREATE INDEX IF NOT EXISTS ix_approval_requests_task_status "
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"ON approval_requests (task_id, status)",
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):
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await conn.execute(text(stmt))
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