初始提交：极码 GeekCode 全栈项目（FastAPI + Vue3）

backend/models/follow.py

@@ -0,0 +1,17 @@
+"""关注关系模型"""
+from sqlalchemy import Column, Integer, DateTime, ForeignKey, UniqueConstraint
+from sqlalchemy.sql import func
+from database import Base
+
+
+class Follow(Base):
+    __tablename__ = "follows"
+
+    id = Column(Integer, primary_key=True, index=True)
+    follower_id = Column(Integer, ForeignKey("users.id"), nullable=False, index=True)
+    following_id = Column(Integer, ForeignKey("users.id"), nullable=False, index=True)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+
+    __table_args__ = (
+        UniqueConstraint("follower_id", "following_id", name="uq_follow"),
+    )