33 lines
1.1 KiB
Python
33 lines
1.1 KiB
Python
from sqlalchemy import Column, Integer, String, ForeignKey, Text, DateTime, func
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from sqlalchemy.orm import relationship
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from app.database import Base
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class User(Base):
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__tablename__ = "users"
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id = Column(Integer, primary_key=True, index=True)
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telegram_id = Column(String, unique=True, index=True)
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username = Column(String, nullable=True)
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chats = relationship("Chat", back_populates="owner")
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class Chat(Base):
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__tablename__ = "chats"
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id = Column(Integer, primary_key=True, index=True)
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title = Column(String, default="Новый чат")
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owner_id = Column(Integer, ForeignKey("users.id"))
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owner = relationship("User", back_populates="chats")
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messages = relationship("Message", back_populates="chat", cascade="all, delete-orphan")
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class Message(Base):
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__tablename__ = "messages"
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id = Column(Integer, primary_key=True, index=True)
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role = Column(String) # 'user' | 'assistant' | 'system'
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content = Column(Text)
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created_at = Column(DateTime(timezone=True), server_default=func.now())
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chat_id = Column(Integer, ForeignKey("chats.id"))
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chat = relationship("Chat", back_populates="messages") |