Initial commit - DesignerCEP Project with Caddy deployment
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19
Server/app/models/session.py
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19
Server/app/models/session.py
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from sqlalchemy import Column, Integer, String, DateTime, Boolean, ForeignKey, func
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from sqlalchemy.orm import relationship
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from app.db import Base
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class UserSession(Base):
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# 用户会话表,用于限制单设备同时在线
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__tablename__ = "user_sessions"
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id = Column(Integer, primary_key=True, index=True)
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user_id = Column(Integer, ForeignKey("users.id"), nullable=False, index=True)
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device_id = Column(String(128), nullable=False, index=True) # 设备标识(前端提供)
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active = Column(Boolean, default=True, nullable=False) # 是否处于活跃登录状态
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expires_at = Column(DateTime(timezone=True), nullable=True) # 过期时间(与令牌一致)
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created_at = Column(DateTime(timezone=True), server_default=func.now(), nullable=False)
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login_at = Column(DateTime(timezone=True), nullable=True) # 登录时间
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logout_at = Column(DateTime(timezone=True), nullable=True) # 登出时间
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duration_seconds = Column(Integer, nullable=True) # 在线时长(秒)
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last_seen_at = Column(DateTime(timezone=True), nullable=True) # 最近心跳时间(用于统计活跃时长)
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user = relationship("User")
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