DAL/UserScoreService.cs

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using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;
namespace DAL
{
	/// <summary>
	/// 数据访问类:UserScoreService
	/// </summary>
	public partial class UserScoreService
	{
		public UserScoreService()
		{}
		#region  BasicMethod
        /// <summary>
        /// 得到一个对象实体
        /// </summary>
        public static Model.UserScore GetModelByUserId(int userId)
        {

            StringBuilder strSql = new StringBuilder();
            strSql.Append("select  top 1 * from UserScore ");
            strSql.Append(" where userId=@userId order by id desc");
            SqlParameter[] parameters = {
					new SqlParameter("@userId", SqlDbType.Int,4)
			};
            parameters[0].Value = userId;

            Model.UserScore model = new Model.UserScore();
            DataSet ds = DBHelperSQL.Query(strSql.ToString(), parameters);
            if (ds.Tables[0].Rows.Count > 0)
            {
                return DataRowToModel(ds.Tables[0].Rows[0]);
            }
            else
            {
                return null;
            }
        }

        /// <summary>
        /// 获取原乡卡总余额
        /// </summary>
        /// <param name="userId"></param>
        /// <returns></returns>
        public static string GetUseTotal(int userId, int status)
        {
            string sql = "select sum(orderTotal) as orderTotal from UserScore where status = " + status;
            object obj = DBHelperSQL.GetSingle(sql);
            if (obj != null)
            {
                return Convert.ToDouble(obj).ToString("0.00");
            }
            return "0";
        }
		/// <summary>
		/// 是否存在该记录
		/// </summary>
        public static bool Exists(Model.UserScore model)
		{