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ee7d7b9 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | from sqlalchemy import Column, String, Text, DateTime, ForeignKey
from sqlalchemy.orm import relationship
from datetime import datetime
from core.database import Base
class Conversation(Base):
__tablename__ = "conversations"
id = Column(String, primary_key=True, index=True)
user_id = Column(String, index=True)
title = Column(String, default="New Chat")
created_at = Column(DateTime, default=datetime.utcnow)
updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
# Relationship to messages
messages = relationship("Message", back_populates="conversation", cascade="all, delete-orphan")
class Message(Base):
__tablename__ = "messages"
id = Column(String, primary_key=True, index=True)
conversation_id = Column(String, ForeignKey("conversations.id"))
role = Column(String) # 'user' or 'assistant'
content = Column(Text)
timestamp = Column(DateTime, default=datetime.utcnow)
conversation = relationship("Conversation", back_populates="messages")
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