/// <summary>
/// 删除AssociateId相关的附件
/// </summary>
/// <param name="associateId">附件关联Id（例如：博文Id、帖子Id）</param>
public virtual void DeletesByAssociateId(long associateId)
{
IEnumerable <T> attachments = GetsByAssociateId(associateId);
foreach (var attachment in attachments)
{
DeleteStoredFile(attachment);
}
string tenantTypeId = this.TenantAttachmentSettings.TenantTypeId;
attachmentRepository.DeletesByAssociateId(tenantTypeId, associateId);
}
