database-schema.py

from sqlalchemy import Column, Integer, String, ARRAY, DateTime
from sqlalchemy.ext.declarative import declarative_base
from datetime import datetime

Base = declarative_base()

class ResearchResult(Base):
    __tablename__ = "research_results"

    id = Column(Integer, primary_key=True, index=True)
    topic = Column(String, index=True)
    findings = Column(ARRAY(String))
    sources = Column(ARRAY(String))
    created_at = Column(DateTime, default=datetime.utcnow)
    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)

# Add this to your main.py or a separate database.py file
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker

SQLALCHEMY_DATABASE_URL = "postgresql://user:password@postgres/dbname"

engine = create_engine(SQLALCHEMY_DATABASE_URL)
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)

# Dependency to get DB session
def get_db():
    db = SessionLocal()
    try:
        yield db
    finally:
        db.close()