DTcms.DAL/article_content.cs

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using System;
using System.Collections.Generic;
using System.Data;
using System.Text;
using System.Data.OleDb;
using DTcms.DBUtility;
using DTcms.Common;

namespace DTcms.DAL
{
	/// <summary>
	/// 内容模型
	/// </summary>
	public partial class article
	{
		#region  Method
        /// <summary>
        /// 得到最前的内容页
        /// </summary>
        public string GetCallIndex()
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select top 1 call_index from view_article_content");
            strSql.Append(" order by sort_id asc,id desc");
            object obj = DbHelperOleDb.GetSingle(strSql.ToString());
            if (obj != null)
            {
                return obj.ToString();
            }
            return null;
        }

        /// <summary>
        /// 是否存在该记录
        /// </summary>
        public bool ContentExists(string call_index)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(0) from view_article_content");
            strSql.Append(" where call_index=@call_index ");
            OleDbParameter[] parameters = {
					new OleDbParameter("@call_index", OleDbType.VarChar,50)};
            parameters[0].Value = call_index;

            return DbHelperOleDb.Exists(strSql.ToString(), parameters);
        }

        /// <summary>
        /// 修改内容副表一列数据
        /// </summary>
        public void UpdateContentField(int id, string strValue)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("update dt_article_content set " + strValue);
            strSql.Append(" where id=" + id);
            DbHelperOleDb.ExecuteSql(strSql.ToString());
        }

		/// <summary>
		/// 增加一条数据