DTcms.DAL/user_point_log.cs

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

namespace DTcms.DAL
{
    /// <summary>
    /// 积分记录日志
    /// </summary>
    public partial class user_point_log
    {
        private string databaseprefix; //数据库表名前缀
        public user_point_log(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 + "user_point_log");
            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.user_point_log model, bool is_upgrade)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("insert into " + databaseprefix + "user_point_log(");
            strSql.Append("user_id,user_name,value,remark,add_time)");
            strSql.Append(" values (");
            strSql.Append("@user_id,@user_name,@value,@remark,@add_time)");
            strSql.Append(";set @ReturnValue= @@IDENTITY");
            SqlParameter[] parameters = {
					new SqlParameter("@user_id", SqlDbType.Int,4),
					new SqlParameter("@user_name", SqlDbType.NVarChar,100),
					new SqlParameter("@value", SqlDbType.Int,4),
					new SqlParameter("@remark", SqlDbType.NVarChar,500),
					new SqlParameter("@add_time", SqlDbType.DateTime),
                    new SqlParameter("@ReturnValue",SqlDbType.Int)};
            parameters[0].Value = model.user_id;
            parameters[1].Value = model.user_name;
            parameters[2].Value = model.value;
            parameters[3].Value = model.remark;
            parameters[4].Value = model.add_time;