Backup/Discuz.Forum/Advertisements.cs

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using System;
using System.Data;
using System.Data.Common;
using System.Text;

using Discuz.Common;
using Discuz.Data;
using Discuz.Entity;
using Discuz.Config;
using Discuz.Common.Generic;

namespace Discuz.Forum
{
    /// <summary>
    /// 广告操作类
    /// </summary>
    public class Advertisements
    {
        /// <summary>
        /// 按查询字符串得到广告列表
        /// </summary>
        /// <param name="selectstr">查询字符串</param>
        /// <returns>广告列表</returns>
        private static AdShowInfo[] GetAdsTable(string selectstr)
        {
            Discuz.Cache.DNTCache cache = Discuz.Cache.DNTCache.GetCacheService();
            DataTable dt = cache.RetrieveObject("/Forum/Advertisements") as DataTable;

            if (dt == null)
            {
                dt = Discuz.Data.Advertisenments.GetAdsTable();
                cache.AddObject("/Forum/Advertisements", dt);
            }

            DataRow[] drs = dt.Select(selectstr);
            AdShowInfo[] adarray = new AdShowInfo[drs.Length];

            for (int i = 0; i < drs.Length; i++)
            {
                adarray[i] = new AdShowInfo();
                adarray[i].Advid = Utils.StrToInt(drs[i]["advid"].ToString(), 0);
                adarray[i].Displayorder = Utils.StrToInt(drs[i]["displayorder"].ToString(), 0);
                adarray[i].Code = drs[i]["code"].ToString().Trim();
                adarray[i].Parameters = drs[i]["parameters"].ToString().Trim();
            }
            return adarray;
        }


        /// <summary>
        /// 根据参数生成查询字符串
        /// </summary>
        /// <param name="pagename">页面名称</param>
        /// <param name="fid">版块id</param>
        /// <param name="adtype">广告类型</param>
        /// <returns>查询字符串</returns>
        public static string GetSelectStr(string pagename, int fid, AdType adtype)
        {
            string typestr = Convert.ToInt16(adtype).ToString();