订单微服务实体实现

src/HelloShop.OrderingService/Entities/Orders/Address.cs

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+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+namespace HelloShop.OrderingService.Entities.Orders
+{
+    public record Address
+    {
+        /// <summary>
+        /// 国家
+        /// </summary>
+        public required string Country { get; set; }
+
+        /// <summary>
+        /// 省份
+        /// </summary>
+        public required string State { get; set; }
+
+        /// <summary>
+        /// 城市
+        /// </summary>
+        public required string City { get; set; }
+
+        /// <summary>
+        /// 街道
+        /// </summary>
+        public required string Street { get; set; }
+
+        /// <summary>
+        /// 邮编
+        /// </summary>
+        public required string ZipCode { get; set; }
+    }
+}

src/HelloShop.OrderingService/Entities/Orders/Order.cs

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+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+using System.Diagnostics.CodeAnalysis;
+
+namespace HelloShop.OrderingService.Entities.Orders
+{
+    public class Order
+    {
+        public int Id { get; set; }
+
+        public DateTimeOffset OrderDate { get; private set; } = DateTimeOffset.UtcNow;
+
+        public required Address Address { get; init; }
+
+        public OrderStatus OrderStatus { get; set; } = OrderStatus.Submitted;
+
+        public int BuyerId { get; set; }
+
+        public int? PaymentMethodId { get; set; }
+
+        public required IReadOnlyCollection<OrderItem> OrderItems { get; init; }
+
+        public string? Description { get; set; }
+
+        /// <summary>
+        /// EF Core cannot set navigation properties using a constructor.
+        /// The constructor can be public, private, or have any other accessibility. 
+        /// </summary>
+        private Order() { }
+
+        [SetsRequiredMembers]
+        public Order(int buyerId, Address address, IEnumerable<OrderItem> orderItems)
+        {
+            Address = address;
+            BuyerId = buyerId;
+            OrderItems = orderItems.ToList();
+        }
+    }
+}

src/HelloShop.OrderingService/Entities/Orders/OrderItem.cs

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+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+namespace HelloShop.OrderingService.Entities.Orders
+{
+    public class OrderItem
+    {
+        public int Id { get; set; }
+
+        public int OrderId { get; set; }
+
+        public int ProductId { get; set; }
+
+        public required string ProductName { get; set; }
+
+        public required string PictureUrl { get; set; }
+
+        public decimal UnitPrice { get; set; }
+
+        public int Units { get; set; }
+    }
+}

src/HelloShop.OrderingService/Entities/Orders/OrderStatus.cs

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+// Copyright (c) HelloShop Corporation. All rights reserved.
+// See the license file in the project root for more information.
+
+namespace HelloShop.OrderingService.Entities.Orders
+{
+    public enum OrderStatus
+    {
+        Submitted = 1,
+        AwaitingValidation = 2,
+        StockConfirmed = 3,
+        Paid = 4,
+        Shipped = 5,
+        Cancelled = 6
+    }
+}