122 lines
5.1 KiB
C#
122 lines
5.1 KiB
C#
using Longbow;
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using Longbow.Cache;
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using Longbow.Logging;
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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Data.Common;
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using System.Linq;
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namespace Bootstrap.DataAccess
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{
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/// <summary>
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///
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/// </summary>
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public static class MessageHelper
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{
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private const string RetrieveMessageDataKey = "MessageHelper-RetrieveMessages";
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/// <summary>
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/// 所有有关userName所有消息列表
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/// </summary>
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/// <param name="userName"></param>
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/// <returns></returns>
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private static IEnumerable<Message> RetrieveMessages(string userName)
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{
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var messageRet = CacheManager.GetOrAdd(RetrieveMessageDataKey, key =>
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{
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string sql = "select m.*, d.Name, isnull(i.Code + u.Icon, '~/images/uploader/default.jpg'), u.DisplayName from [Messages] m left join Dicts d on m.Label = d.Code and d.Category = N'消息标签' and d.Define = 0 left join Dicts i on i.Category = N'头像地址' and i.Name = N'头像路径' and i.Define = 0 inner join Users u on m.[From] = u.UserName where [To] = @UserName or [From] = @UserName order by m.SendTime desc";
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List<Message> messages = new List<Message>();
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DbCommand cmd = DBAccessManager.SqlDBAccess.CreateCommand(CommandType.Text, sql);
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try
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{
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cmd.Parameters.Add(DBAccessManager.SqlDBAccess.CreateParameter("@UserName", userName));
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using (DbDataReader reader = DBAccessManager.SqlDBAccess.ExecuteReader(cmd))
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{
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while (reader.Read())
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{
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messages.Add(new Message()
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{
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Id = (int)reader[0],
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Title = (string)reader[1],
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Content = (string)reader[2],
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From = (string)reader[3],
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To = (string)reader[4],
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SendTime = LgbConvert.ReadValue(reader[5], DateTime.MinValue),
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Status = (string)reader[6],
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Mark = (int)reader[7],
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IsDelete = (int)reader[8],
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Label = (string)reader[9],
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LabelName = LgbConvert.ReadValue(reader[10], string.Empty),
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FromIcon = (string)reader[11],
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FromDisplayName = (string)reader[12]
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});
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}
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}
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}
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catch (Exception ex) { ExceptionManager.Publish(ex); }
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return messages;
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});
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return messageRet.OrderByDescending(n => n.SendTime);
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}
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/// <summary>
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/// 收件箱
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/// </summary>
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/// <param name="userName"></param>
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public static IEnumerable<Message> Inbox(string userName)
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{
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var messageRet = RetrieveMessages(userName);
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return messageRet.Where(n => n.To.Equals(userName, StringComparison.OrdinalIgnoreCase));
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}
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/// <summary>
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/// 发件箱
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/// </summary>
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/// <param name="userName"></param>
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/// <returns></returns>
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public static IEnumerable<Message> SendMail(string userName)
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{
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var messageRet = RetrieveMessages(userName);
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return messageRet.Where(n => n.From.Equals(userName, StringComparison.OrdinalIgnoreCase));
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}
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/// <summary>
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/// 垃圾箱
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/// </summary>
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/// <param name="userName"></param>
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/// <returns></returns>
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public static IEnumerable<Message> Trash(string userName)
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{
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var messageRet = RetrieveMessages(userName);
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return messageRet.Where(n => n.IsDelete == 1);
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}
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/// <summary>
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/// 标旗
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/// </summary>
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/// <param name="userName"></param>
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/// <returns></returns>
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public static IEnumerable<Message> Mark(string userName)
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{
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var messageRet = RetrieveMessages(userName);
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return messageRet.Where(n => n.Mark == 1);
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}
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/// <summary>
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/// 获取Header处显示的消息列表
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/// </summary>
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/// <param name="userName"></param>
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/// <returns></returns>
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public static IEnumerable<Message> RetrieveMessagesHeader(string userName)
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{
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var messageRet = Inbox(userName);
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messageRet.AsParallel().ForAll(n =>
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{
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var ts = DateTime.Now - n.SendTime;
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if (ts.TotalMinutes < 5) n.Period = "刚刚";
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else if (ts.Days > 0) n.Period = string.Format("{0}天", ts.Days);
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else if (ts.Hours > 0) n.Period = string.Format("{0}小时", ts.Hours);
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else if (ts.Minutes > 0) n.Period = string.Format("{0}分钟", ts.Minutes);
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});
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return messageRet;
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}
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}
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}
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