/// <param name="migration">Migration parameter</param>
public void Add(Migration migration)
{
if (_migrations.Any(m => m.Type == migration.Type && m.Version == migration.Version))
throw new NotSupportedException("Migration versions for same type must differ");
_migrations.AddLast(migration);
}
private bool Execute(Migration migration)
{
var type = migration.Type;
var version = migration.Version;
var dbVersion = _versioner.CurrentVersion(type);
_logger.Info(string.Format("Database {0} version is : {1}", type, dbVersion));
if (version <= dbVersion)
{
_logger.Debug(string.Format("{0} migration version {1} is less than database version", type, version));
return true;
}
Stopwatch sw = new Stopwatch();
sw.Start();
_logger.Info("Executing migration to version " + version);
try
{
migration.Execute(_session);
}
catch (Exception ex)
{
_logger.Error(string.Format("Failed to execute {0} migration to version {1}", type, version), ex);
return false;
}
sw.Stop();
_logger.Info(string.Format("migration to version {0} took {1} seconds.", version, sw.Elapsed.TotalSeconds));
if (!_versioner.SetVersion(migration))
{
_logger.Error("Failed to update database version. Leaving...");
return false;
}
return true;
}
