/// <summary>
/// Extract the content of a previous version of a file.
/// </summary>
/// <param name="documentId"></param>
/// <param name="versionNumber"></param>
/// <returns></returns>
public byte[] GetFileContent(string documentId, int versionNumber)
{
string sSQL = string.Format("SELECT Content FROM DocVersions WHERE Id = '{0}' AND Version = {1} ", documentId, versionNumber.ToString());
object oContent = _DB.ExecuteScalar(sSQL);
if (oContent is byte [])
{
return((byte [])oContent);
}
else
{
return(null);
}
}
public static ISPDatabase CreateSPDatabase(Data.DatabaseConnector db)
{
string sSQL = "SELECT table_type FROM information_schema.tables WHERE table_name = 'Docs'";
object oTableType = db.ExecuteScalar(sSQL);
ISPDatabase oDB = null;
if (oTableType == null || oTableType == DBNull.Value)
{
throw new ApplicationException("This database structure is not recognized as a Sharepoint 2003 or Sharepoint 2007 database.");
}
string sTableType = (string)oTableType;
// in Sharepoint 2003, the Docs table is a BASE TABLE
// in Sharepoint 2007, the Docs table is a VIEW
if (sTableType == "BASE TABLE")
{
oDB = new SPDatabase2003(db);
}
else if (sTableType == "VIEW")
{
oDB = new SPDatabase2007(db);
}
else
{
throw new ApplicationException("This database structure is not recognized as a Sharepoint 2003 or Sharepoint 2007 database.");
}
return(oDB);
}
