1.8

backend/app/models/user_streak.py

@@ -0,0 +1,22 @@
+"""用户每日签到/连续天数模型"""
+
+from datetime import date, datetime
+
+from sqlalchemy import String, Integer, Date, DateTime, ForeignKey
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.database import Base
+
+
+class UserStreak(Base):
+    __tablename__ = "user_streaks"
+
+    user_id: Mapped[str] = mapped_column(String(36), ForeignKey("users.id", ondelete="CASCADE"), primary_key=True)
+    streak: Mapped[int] = mapped_column(Integer, default=0)  # 连续打开天数
+    last_open_date: Mapped[date | None] = mapped_column(Date, nullable=True)
+    total_days: Mapped[int] = mapped_column(Integer, default=0)  # 累计打开天数
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime, default=lambda: datetime.utcnow(), onupdate=lambda: datetime.utcnow()
+    )
+
+    user = relationship("User", foreign_keys=[user_id])