更新技术实施方案和PRD文档版本历史

backend/models/index.js

@@ -22,6 +22,9 @@ const sequelize = new Sequelize(
   }
 );
 
+// 导入模型定义
+const defineOrder = require('./order.js');
+
 // 测试数据库连接
 const testConnection = async () => {
   try {
@@ -118,15 +121,23 @@ const models = {
   }, {
     tableName: 'api_users',
     timestamps: true
-  })
+  }),
+  
+  // 订单模型
+  Order: defineOrder(sequelize)
 };
 
 // 同步数据库模型
 const syncModels = async () => {
   try {
-    // 只同步API用户表（如果不存在则创建）
+    // 同步API用户表（如果不存在则创建）
     await models.ApiUser.sync({ alter: true });
     console.log('✅ API用户表同步成功');
+    
+    // 同步订单表（如果不存在则创建）
+    await models.Order.sync({ alter: true });
+    console.log('✅ 订单表同步成功');
+    
     console.log('✅ 数据库模型同步完成');
   } catch (error) {
     console.error('❌ 数据库模型同步失败:', error);

backend/models/order.js

@@ -0,0 +1,132 @@
+// 订单模型定义
+const { Sequelize } = require('sequelize');
+
+module.exports = (sequelize) => {
+  const Order = sequelize.define('Order', {
+    id: {
+      type: Sequelize.INTEGER,
+      primaryKey: true,
+      autoIncrement: true
+    },
+    orderNo: {
+      type: Sequelize.STRING(20),
+      allowNull: false,
+      unique: true,
+      comment: '订单编号'
+    },
+    buyerId: {
+      type: Sequelize.INTEGER,
+      allowNull: false,
+      comment: '买方ID'
+    },
+    buyerName: {
+      type: Sequelize.STRING(100),
+      allowNull: false,
+      comment: '买方名称'
+    },
+    supplierId: {
+      type: Sequelize.INTEGER,
+      allowNull: false,
+      comment: '供应商ID'
+    },
+    supplierName: {
+      type: Sequelize.STRING(100),
+      allowNull: false,
+      comment: '供应商名称'
+    },
+    traderId: {
+      type: Sequelize.INTEGER,
+      allowNull: true,
+      comment: '贸易商ID'
+    },
+    traderName: {
+      type: Sequelize.STRING(100),
+      allowNull: true,
+      comment: '贸易商名称'
+    },
+    cattleBreed: {
+      type: Sequelize.STRING(50),
+      allowNull: false,
+      comment: '牛的品种'
+    },
+    cattleCount: {
+      type: Sequelize.INTEGER,
+      allowNull: false,
+      comment: '牛的数量'
+    },
+    expectedWeight: {
+      type: Sequelize.DECIMAL(10, 2),
+      allowNull: false,
+      comment: '预计总重量'
+    },
+    actualWeight: {
+      type: Sequelize.DECIMAL(10, 2),
+      allowNull: true,
+      comment: '实际总重量'
+    },
+    unitPrice: {
+      type: Sequelize.DECIMAL(10, 2),
+      allowNull: false,
+      comment: '单价'
+    },
+    totalAmount: {
+      type: Sequelize.DECIMAL(15, 2),
+      allowNull: false,
+      comment: '总金额'
+    },
+    paidAmount: {
+      type: Sequelize.DECIMAL(15, 2),
+      allowNull: false,
+      defaultValue: 0,
+      comment: '已支付金额'
+    },
+    remainingAmount: {
+      type: Sequelize.DECIMAL(15, 2),
+      allowNull: false,
+      comment: '剩余金额'
+    },
+    status: {
+      type: Sequelize.ENUM(
+        'pending', 'confirmed', 'preparing', 'shipping', 
+        'delivered', 'accepted', 'completed', 'cancelled', 'refunded'
+      ),
+      allowNull: false,
+      defaultValue: 'pending',
+      comment: '订单状态'
+    },
+    deliveryAddress: {
+      type: Sequelize.STRING(200),
+      allowNull: false,
+      comment: '收货地址'
+    },
+    expectedDeliveryDate: {
+      type: Sequelize.DATE,
+      allowNull: false,
+      comment: '预计交货日期'
+    },
+    actualDeliveryDate: {
+      type: Sequelize.DATE,
+      allowNull: true,
+      comment: '实际交货日期'
+    },
+    notes: {
+      type: Sequelize.TEXT,
+      allowNull: true,
+      comment: '备注信息'
+    }
+  }, {
+    tableName: 'orders',
+    timestamps: true,
+    createdAt: 'created_at',
+    updatedAt: 'updated_at',
+    indexes: [
+      { fields: ['orderNo'] },
+      { fields: ['buyerId'] },
+      { fields: ['supplierId'] },
+      { fields: ['status'] },
+      { fields: ['created_at'] }
+    ]
+  });
+
+  return Order;
+};