58 lines
2.0 KiB
C#
58 lines
2.0 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Data.Entity;
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using System.Linq;
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using System.Web;
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/// <summary>
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/// GuaDanOrderGuest 的摘要描述
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/// </summary>
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namespace Model
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{
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public partial class GuaDanOrderGuest
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{
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// 状态常量定义
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public const string STATUS_BOOKED = "401"; // 预订成功
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public const string STATUS_CHECKED_IN = "402"; // 已入住
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public const string STATUS_CHECKED_OUT = "403"; // 已退房
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public const string STATUS_CANCELLED = "404"; // 已取消
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public static bool IsStatusTransitionValid(ezEntities db, string targetStatus, Guid guestId)
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{
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// 获取当前客人对象
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GuaDanOrderGuest currentGuest = db.GuaDanOrderGuest.Find(guestId);
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if (currentGuest == null)
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{
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// 如果没有客人对象，只能创建新的预订
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return targetStatus == STATUS_BOOKED;
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}
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// 安全获取当前状态（处理null情况）
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string currentStatus = currentGuest.RegionRoomBedStatus?.Code;
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// 如果当前状态为空，只能进入预订成功状态
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if (string.IsNullOrEmpty(currentStatus))
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{
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return targetStatus == STATUS_BOOKED;
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}
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// 定义有效的状态转换规则
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var validTransitions = new Dictionary<string, List<string>>
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{
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{ STATUS_BOOKED, new List<string> { STATUS_CHECKED_IN, STATUS_CANCELLED } },
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{ STATUS_CHECKED_IN, new List<string> { STATUS_CHECKED_OUT } },
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{ STATUS_CHECKED_OUT, new List<string> { } }, // 终态，不能再转换
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{ STATUS_CANCELLED, new List<string> { } } // 终态，不能再转换
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};
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// 检查转换是否有效
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if (validTransitions.ContainsKey(currentStatus))
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{
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return validTransitions[currentStatus].Contains(targetStatus);
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}
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return false; // 未知的当前状态
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}
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}
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}
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