DAL/PvService.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:PvService
	/// </summary>
	public partial class PvService
	{
		public PvService()
		{}
		#region  BasicMethod
        /// <summary>
        /// 根据条件统计浏览次数
        /// </summary>
        /// <param name="whereStr"></param>
        /// <param name="pageValue"></param>
        /// <returns></returns>
        public static int GetViews(string whereStr,string pageValue) 
        {
            string sql = "select count(id) from Pv where pageValue = '" + pageValue + "'" ;
            if(whereStr != "")
            {
                sql += " and " + whereStr;
            }
            object obj = DBHelperSQL.GetSingle(sql);
            if(obj != null)
            {
                return Convert.ToInt32(obj);
            }
            return 0;
        }

		/// <summary>
		/// 是否存在该记录
		/// </summary>
		public bool Exists(int id)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) from Pv");
			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 static int Add(Model.Pv model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("insert into Pv(");
			strSql.Append("pageName,pageValue,viewsCount,addTime,ip,status,remark,infoType)");