DTcms.DAL/article.cs

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

namespace DTcms.DAL
{
    /// <summary>
    /// 数据访问类:article
    /// </summary>
    public partial class article
    {
        private string databaseprefix; //数据库表名前缀
        public article(string _databaseprefix)
        {
            databaseprefix = _databaseprefix;
        }

        #region 基本方法=============================================
        /// <summary>
        /// 是否存在该记录
        /// </summary>
        public bool Exists(int id)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from " + databaseprefix + "article");
            strSql.Append(" where id=@id ");
            SqlParameter[] parameters = {
					new SqlParameter("@id", SqlDbType.Int,4)};
            parameters[0].Value = id;

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

        /// <summary>
        /// 是否存在标题
        /// </summary>
        public bool ExistsTitle(string title)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from " + databaseprefix + "article");
            strSql.Append(" where title=@title ");
            SqlParameter[] parameters = {
					new SqlParameter("@title", SqlDbType.VarChar,200)};
            parameters[0].Value = title;

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

        /// <summary>
        /// 是否存在标题
        /// </summary>
        public bool ExistsTitle(string title, int category_id)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from " + databaseprefix + "article");
            strSql.Append(" where title=@title and category_id=@category_id");