Backup/Discuz.Data/DataProvider/Attachments.cs
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using System;
using System.Text;
using System.Data;
using System.IO;
using Discuz.Entity;
using Discuz.Config;
using Discuz.Common;
using Discuz.Common.Generic;
using Discuz.Cache.Data;
namespace Discuz.Data
{
/// <summary>
/// 附件数据操作类
/// </summary>
public class Attachments
{
/// <summary>
/// 是否启用TokyoTyrantCache缓存用户表
/// </summary>
public static bool appDBCache = (EntLibConfigs.GetConfig() != null && EntLibConfigs.GetConfig().Cacheattachments.Enable);
public static ICacheAttachments IAttachmentService = appDBCache ? DBCacheService.GetAttachmentsService() : null;
/// <summary>
/// 产生附件
/// </summary>
/// <param name="attachmentinfo">附件描述类</param>
/// <returns>附件id</returns>
public static int CreateAttachments(AttachmentInfo attachmentinfo)
{
attachmentinfo.Aid = DatabaseProvider.GetInstance().CreateAttachment(attachmentinfo);
if (appDBCache)
IAttachmentService.CreateAttachments(attachmentinfo);
return attachmentinfo.Aid;
}
/// <summary>
/// 获得指定附件的描述信息
/// </summary>
/// <param name="aid">附件id</param>
/// <returns>描述信息</returns>
public static AttachmentInfo GetAttachmentInfo(int aid)
{
if (appDBCache)
{
AttachmentInfo attachmentInfo = IAttachmentService.GetAttachmentInfo(aid);
if (attachmentInfo != null)
return attachmentInfo;
}
return LoadSingleAttachmentInfo(DatabaseProvider.GetInstance().GetAttachmentInfo(aid), true);
}
/// <summary>
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