DTcms.DAL/user_code.cs

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

namespace DTcms.DAL
{
    /// <summary>
    /// 用户生成码
    /// </summary>
    public partial class user_code
    {
        public user_code()
        { }
        #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 dt_user_code");
            strSql.Append(" where id=@id");
            SqlParameter[] parameters = {
					new SqlParameter("@id", SqlDbType.Int,4)};
            parameters[0].Value = id;

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

        /// <summary>
        /// 是否存在该记录
        /// </summary>
        public bool Exists(string type, string user_name)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from dt_user_code");
            strSql.Append(" where status=0 and datediff(d,eff_time,getdate())<=0 and type=@type and user_name=@user_name");
            SqlParameter[] parameters = {
					new SqlParameter("@type", SqlDbType.NVarChar,20),
                    new SqlParameter("@user_name", SqlDbType.NVarChar,100)};
            parameters[0].Value = type;
            parameters[1].Value = user_name;

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

        /// <summary>
        /// 返回数据总数
        /// </summary>
        public int GetCount(string strWhere)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(*) as H ");
            strSql.Append(" from dt_user_code ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);