/// <summary>
/// Возвращает метаданные всех версий файла.
/// </summary>
/// <param name="file">Метаданные файла.</param>
/// <returns>Коллекцию метаданных версий файла.</returns>
internal FileVersionsCollection GetFileVersions(FileMetadata file)
{
if (file == null)
{
throw new ArgumentNullException("file");
}
FileVersionsCollection versions = new FileVersionsCollection(file);
string query = String.Format("[FileID] = '{0}'", file.ID);
string tableName = this.GetTableName(file);
DBObjectDistributedTable table = this.MetadataAdapter.TableActivator.GetDistributedTable(this.DBSchemaAdapter, tableName);
MetadataQueryBuilder queryBuilder = new MetadataQueryBuilder(table.TablePartition.Table, this.TypeDefinition);
string resultQuery = @"{SelectQuery} WHERE {Query} ORDER BY [TimeCreated] ASC"
.ReplaceKey("SelectQuery", queryBuilder.SelectQuery)
.ReplaceKey("Query", query);
DataTable resultTable = this.DataAdapter.GetDataTable(resultQuery);
if (resultTable != null)
{
foreach (DataRow row in resultTable.Rows)
{
FileVersionMetadata metadata = new FileVersionMetadata(row, versions);
versions.AddVersion(metadata);
}
}
return(versions);
}
/// <summary>
/// К-тор.
/// </summary>
/// <param name="adapter">Коллекция версий файла.</param>
internal FileVersionMetadata(FileVersionsCollection collection)
{
if (collection == null)
{
throw new ArgumentNullException("collection");
}
this.VersionsCollection = collection;
}
/// <summary>
/// К-тор.
/// </summary>
/// <param name="row">Данные.</param>
/// <param name="collection">Коллекция версий файла.</param>
internal FileVersionMetadata(DataRow row, FileVersionsCollection collection)
{
if (row == null)
{
throw new ArgumentNullException("row");
}
if (collection == null)
{
throw new ArgumentNullException("collection");
}
this.MetadataRow = row;
this.VersionsCollection = collection;
}
public ICollection <IBlobFileVersionMetadata> GetVersions(IBlobFileMetadata fileMetadata)
{
if (fileMetadata == null)
{
throw new ArgumentNullException("fileMetadata");
}
this.Logger.WriteFormatMessage("GetVersions: Начало. fileUniqueID='{0}' folderUrl='{1}'",
fileMetadata.UniqueID, fileMetadata.FolderMetadata.Url);
FileVersionsCollection collection = ((FileMetadata)fileMetadata).Versions;
this.Logger.WriteMessage("GetVersions: Конец.");
return(collection);
}
