/// <summary>
/// 为指定用户生成指定附件的拷贝
/// </summary>
/// <param name="attachment">指定附件实体</param>
/// <param name="userId">指定用户的id</param>
/// <returns>新附件实体</returns>
public T CloneForUser(T attachment, long userId)
{
//复制数据库记录
T newAttachment = (T) new Attachment();
newAttachment.ContentType = attachment.ContentType;
newAttachment.FileLength = attachment.FileLength;
newAttachment.FriendlyFileName = attachment.FriendlyFileName;
newAttachment.Height = attachment.Height;
newAttachment.MediaType = attachment.MediaType;
newAttachment.OwnerId = userId;
newAttachment.TenantTypeId = attachment.TenantTypeId;
newAttachment.UserDisplayName = userService.GetUser(userId).DisplayName;
newAttachment.UserId = userId;
newAttachment.Width = attachment.Width;
newAttachment.FileName = newAttachment.GenerateFileName();
EventBus <T> .Instance().OnBefore(newAttachment, new CommonEventArgs(EventOperationType.Instance().Create()));
attachmentRepository.Insert(newAttachment);
EventBus <T> .Instance().OnAfter(newAttachment, new CommonEventArgs(EventOperationType.Instance().Create()));
//复制文件
Stream stream = null;
try
{
IStoreFile file = StoreProvider.GetFile(attachment.GetRelativePath(), attachment.FileName);
stream = file.OpenReadStream();
StoreProvider.AddOrUpdateFile(newAttachment.GetRelativePath(), newAttachment.FileName, stream);
}
catch
{
}
finally
{
if (stream != null)
{
stream.Close();
stream.Dispose();
}
}
//根据不同租户类型的设置生成不同尺寸的图片，用于图片直连访问
if (newAttachment.MediaType == MediaType.Image)
{
TenantAttachmentSettings tenantAttachmentSettings = TenantAttachmentSettings.GetRegisteredSettings(newAttachment.TenantTypeId);
if (tenantAttachmentSettings != null && tenantAttachmentSettings.ImageSizeTypes != null && tenantAttachmentSettings.ImageSizeTypes.Count > 0)
{
foreach (var imageSizeType in tenantAttachmentSettings.ImageSizeTypes)
{
IStoreFile file = StoreProvider.GetResizedImage(newAttachment.GetRelativePath(), newAttachment.FileName, imageSizeType.Size, imageSizeType.ResizeMethod);
}
}
}
return(newAttachment);
}
/// <summary>
/// 获取Logo
/// </summary>
/// <param name="associateId">关联Id</param>
/// <returns></returns>
public IStoreFile GetLogo(object associateId)
{
return(StoreProvider.GetFile(GetLogoRelativePath(associateId), GetLogoFileName(associateId)));
}