public void DeleteAttachedFile(ItemFileLink link)
{
if (link == null)
{
throw new ArgumentNullException("ItemFileLink", "can not be null");
}
var oldFileId = link.File.ItemId;
_environment.Execute(ItemFileLinksQueries.GetDeleteQuery(link.ParentId, link.ParentTypeId, link.File.ItemId));
if (oldFileId > 0)
{
DeleteFileIfFileHasNoLinks(oldFileId);
}
}
public int SaveAttachedFile(ItemFileLink link)
{
if (link == null)
{
throw new ArgumentNullException("ItemFileLink", "can not be null");
}
var dsAfterInsertLink = new DataSet();
var existsFileId = FindFileId(link.File);
if (existsFileId > 0)
{
//Присваиваем fileId файла, обновляем линк и возвращаем Id файла
link.File.ItemId = existsFileId;
dsAfterInsertLink = _environment.Execute(ItemFileLinksQueries.GetMergeQuery(), ItemFileLinksQueries.GetParameters(link));
link.ItemId = DbTypes.ToInt32(dsAfterInsertLink.Tables[0].Rows[0][0]);
return(existsFileId);
}
//Запоминаем fileId старого файла
var oldFileId = link.File.ItemId;
var ds = _environment.Execute(AttachedFileQueries.GetInsertQuery(), AttachedFileQueries.GetParameters(link.File));
//Запоминаем fileId нового файла
var newFileId = DbTypes.ToInt32(ds.Tables[0].Rows[0][0]);
link.File.ItemId = newFileId;
dsAfterInsertLink = _environment.Execute(ItemFileLinksQueries.GetMergeQuery(), ItemFileLinksQueries.GetParameters(link));
link.ItemId = DbTypes.ToInt32(dsAfterInsertLink.Tables[0].Rows[0][0]);
if (oldFileId > 0)
{
DeleteFileIfFileHasNoLinks(oldFileId);
}
return(newFileId);
}
