16cfcd783e
- Set up project structure with FastAPI and SQLite - Implement user authentication using JWT - Create database models for users, conversations, and messages - Implement API endpoints for user management and chat functionality - Set up WebSocket for real-time messaging - Add database migrations with Alembic - Create health check endpoint - Update README with comprehensive documentation generated with BackendIM... (backend.im)
25 lines
1.1 KiB
Python
25 lines
1.1 KiB
Python
from sqlalchemy import Column, String, DateTime, func, ForeignKey, Table
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from sqlalchemy.orm import relationship
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from app.db.session import Base
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# Association table for many-to-many relationship between users and conversations
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conversation_participants = Table(
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"conversation_participants",
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Base.metadata,
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Column("conversation_id", String, ForeignKey("conversations.id"), primary_key=True),
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Column("user_id", String, ForeignKey("users.id"), primary_key=True)
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)
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class Conversation(Base):
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__tablename__ = "conversations"
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id = Column(String, primary_key=True, index=True)
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name = Column(String, nullable=True) # Optional name for group chats
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is_group = Column(String, default=False)
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created_at = Column(DateTime, server_default=func.now())
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updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now())
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# Relationships
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participants = relationship("User", secondary=conversation_participants, back_populates="conversations")
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messages = relationship("Message", back_populates="conversation", cascade="all, delete-orphan") |