DTcms.Web/plugins/link/dal.cs

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

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

		#region  Method
        /// <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 + "link");
            strSql.Append(" where id=@id ");
            SqlParameter[] parameters = {
					new SqlParameter("@id", SqlDbType.Int,4)};
            parameters[0].Value = id;

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

		/// <summary>
		/// 增加一条数据
		/// </summary>
		public int Add(Model.link model)
		{
			StringBuilder strSql=new StringBuilder();
            strSql.Append("insert into " + databaseprefix + "link(");
            strSql.Append("site_path,title,user_name,user_tel,email,site_url,img_url,is_image,sort_id,is_red,is_lock,add_time)");
			strSql.Append(" values (");
            strSql.Append("@site_path,@title,@user_name,@user_tel,@email,@site_url,@img_url,@is_image,@sort_id,@is_red,@is_lock,@add_time)");
			strSql.Append(";select @@IDENTITY");
			SqlParameter[] parameters = {
                    new SqlParameter("@site_path", SqlDbType.NVarChar,100),
					new SqlParameter("@title", SqlDbType.NVarChar,255),
					new SqlParameter("@user_name", SqlDbType.NVarChar,50),
					new SqlParameter("@user_tel", SqlDbType.NVarChar,20),
					new SqlParameter("@email", SqlDbType.NVarChar,50),
					new SqlParameter("@site_url", SqlDbType.NVarChar,255),
					new SqlParameter("@img_url", SqlDbType.NVarChar,255),
					new SqlParameter("@is_image", SqlDbType.Int,4),
					new SqlParameter("@sort_id", SqlDbType.Int,4),
					new SqlParameter("@is_red", SqlDbType.TinyInt,1),
					new SqlParameter("@is_lock", SqlDbType.TinyInt,1),
					new SqlParameter("@add_time", SqlDbType.DateTime)};