SQLServerDAL/user_coupon.cs

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using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;
using Cms.DBUtility;//Please add references
namespace Cms.SQLServerDAL
{
	/// <summary>
	/// 数据访问类:user_coupon
	/// </summary>
	public partial class user_coupon
	{
		public user_coupon()
		{}
		#region  BasicMethod

		/// <summary>
		/// 得到最大ID
		/// </summary>
		public int GetMaxId()
		{
		return DbHelperSQL.GetMaxID("id", "user_coupon"); 
		}

		/// <summary>
		/// 是否存在该记录
		/// </summary>
		public bool Exists(int id)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) from user_coupon");
			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(Cms.Model.user_coupon model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("insert into user_coupon(");
			strSql.Append("usercard,pid,isuse,updatetime)");
			strSql.Append(" values (");
			strSql.Append("@usercard,@pid,@isuse,@updatetime)");
			strSql.Append(";select @@IDENTITY");
			SqlParameter[] parameters = {
					new SqlParameter("@usercard", SqlDbType.NVarChar,100),
					new SqlParameter("@pid", SqlDbType.Int,4),
					new SqlParameter("@isuse", SqlDbType.Int,4),
					new SqlParameter("@updatetime", SqlDbType.DateTime)};
			parameters[0].Value = model.usercard;
			parameters[1].Value = model.pid;
			parameters[2].Value = model.isuse;