chore: initialize tuhui repository

backend/app/models/order.py

@@ -0,0 +1,28 @@
+from sqlalchemy import Column, Integer, String, Float, DateTime, ForeignKey, Enum
+from sqlalchemy.sql import func
+from app.core.database import Base
+import enum
+
+class OrderStatus(str, enum.Enum):
+    PENDING = "pending"  # 待支付
+    PAID = "paid"  # 已支付
+    CANCELLED = "cancelled"  # 已取消
+    REFUNDED = "refunded"  # 已退款
+
+class Order(Base):
+    __tablename__ = "orders"
+    
+    id = Column(Integer, primary_key=True, index=True)
+    order_no = Column(String(100), unique=True, index=True, nullable=False)  # 订单号
+    
+    user_id = Column(Integer, ForeignKey("users.id"), nullable=False, index=True)
+    work_id = Column(Integer, ForeignKey("works.id"), nullable=False, index=True)
+    
+    amount = Column(Float, nullable=False)  # 金额
+    payment_method = Column(String(50))  # 支付方式：alipay, wechat, balance
+    
+    status = Column(Enum(OrderStatus), default=OrderStatus.PENDING, index=True)
+    
+    paid_at = Column(DateTime(timezone=True), nullable=True)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+    updated_at = Column(DateTime(timezone=True), onupdate=func.now())