suna/agentpress/db.py

86 lines
2.5 KiB
Python

from sqlalchemy import Column, Integer, String, Text, ForeignKey, Float, JSON, Boolean
from sqlalchemy.orm import relationship, declarative_base
from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession
from sqlalchemy.orm import sessionmaker
from agentpress.config import settings # Changed from Settings to settings
import os
from contextlib import asynccontextmanager
import uuid
from datetime import datetime
Base = declarative_base()
class Thread(Base):
__tablename__ = 'threads'
thread_id = Column(String(36), primary_key=True, default=lambda: str(uuid.uuid4()))
messages = Column(Text)
created_at = Column(Integer)
def __init__(self, **kwargs):
super().__init__(**kwargs)
self.created_at = int(datetime.utcnow().timestamp())
# class MemoryModule(Base):
# __tablename__ = 'memory_modules'
# id = Column(Integer, primary_key=True)
# thread_id = Column(Integer, ForeignKey('threads.thread_id'))
# module_name = Column(String)
# data = Column(Text)
# __table_args__ = (UniqueConstraint('thread_id', 'module_name', name='_thread_module_uc'),)
# thread = relationship("Thread", back_populates="memory_modules")
class Database:
def __init__(self):
db_url = f"{settings.database_url}"
self.engine = create_async_engine(db_url, echo=False)
self.SessionLocal = sessionmaker(
class_=AsyncSession, expire_on_commit=False, autocommit=False, autoflush=False, bind=self.engine
)
@asynccontextmanager
async def get_async_session(self):
async with self.SessionLocal() as session:
try:
yield session
except Exception:
await session.rollback()
raise
finally:
await session.close()
async def create_tables(self):
async with self.engine.begin() as conn:
await conn.run_sync(Base.metadata.create_all)
async def close(self):
await self.engine.dispose()
if __name__ == "__main__":
import asyncio
import logging
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
async def init_db():
logger.info("Initializing database...")
db = Database()
try:
await db.create_tables()
logger.info("Database tables created successfully.")
except Exception as e:
logger.error(f"Error creating database tables: {e}")
finally:
await db.close()
asyncio.run(init_db())