Discuz.Data/DataProvider/Announcements.cs

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

using Discuz.Entity;
using Discuz.Common;

namespace Discuz.Data
{
    /// <summary>
    /// 论坛公告操作类
    /// </summary>
    public class Announcements
    {
        /// <summary>
        /// 添加公告
        /// </summary>
        /// <param name="announcementInfo">公告对象</param>
        public static void CreateAnnouncement(AnnouncementInfo announcementInfo)
        {
            DatabaseProvider.GetInstance().CreateAnnouncement(announcementInfo);
        }

        /// <summary>
        /// 批量删除公告
        /// </summary>
        /// <param name="aidlist">逗号分隔的id列表字符串</param>
        public static void DeleteAnnouncements(string aidlist)
        {
            DatabaseProvider.GetInstance().DeleteAnnouncements(aidlist);
        }

        /// <summary>
        /// 更新公告排序
        /// </summary>
        /// <param name="displayOrder">排序序号</param>
        /// <param name="aId">公告id</param>
        public static void UpdateAnnouncementDisplayOrder(int displayOrder, int aId)
        {
            DatabaseProvider.GetInstance().UpdateAnnouncementDisplayOrder(displayOrder, aId);
        }

        /// <summary>
        /// 更新公告
        /// </summary>
        /// <param name="announcementInfo">公告对象</param>
        public static void UpdateAnnouncement(AnnouncementInfo announcementInfo)
        {
            DatabaseProvider.GetInstance().UpdateAnnouncement(announcementInfo);
        }

        /// <summary>
        /// 获取公告
        /// </summary>
        /// <param name="aId">公告id</param>
        /// <returns></returns>
        public static AnnouncementInfo GetAnnouncement(int aid)
        {
            AnnouncementInfo announcementInfo = null; 
            IDataReader reader = DatabaseProvider.GetInstance().GetAnnouncement(aid);