commentextension.cs

来自「该项目中对 SQLHelper 类进行了简单封装」· CS 代码 · 共 52 行

/* 
 * CommentExtension.cs @Microsoft Visual Studio 2008 <.NET Framework 3.5>
 * AfritXia
 * 2008-02-05
 * 
 * Copyright(c) http://www.AfritXia.NET/
 * 
 */

using System;

using NET.AfritXia.MyHome.Extension;
using NET.AfritXia.MyHome.Model;
using NET.AfritXia.MyHome.Model.Message;

namespace NET.AfritXia.MyHome.Extension.CheckingIntegrality
{
	/// <summary>评论扩展</summary>
	public class CommentExtension : CommentExtensionBase
	{
		/// <summary>
		/// 添加新评论前进行完整性验证
		/// </summary>
		/// <param name="newComment"></param>
		public override void OnPreAppend(Comment newComment)
		{
			this.Validate(newComment);
		}

		/// <summary>
		/// 验证新评论
		/// </summary>
		/// <param name="newComment"></param>
		private void Validate(Comment newComment)
		{
			if (newComment == null)
				throw new NullReferenceException("添加评论为 Null");

			// 未指明所评论文章
			if (newComment.BelongToArticleUID <= 0)
				throw new AfrCustomEerror("未指明所评论文章的 ID");

			// 空内容
			if (String.IsNullOrEmpty(newComment.TextContent))
				throw new AfrCustomEerror("评论内容为空");

			// 空发送人
			if (String.IsNullOrEmpty(newComment.PostUser))
				throw new AfrCustomEerror("评论发送人为空");
		}
	}
}