public void Rollback(int steps, bool useAutomaticTransactionManagement)
{
var availableMigrations = MigrationLoader.LoadMigrations();
var migrationsToRollback = new List <IMigrationInfo>();
foreach (long version in VersionLoader.VersionInfo.AppliedMigrations())
{
IMigrationInfo migrationInfo;
if (availableMigrations.TryGetValue(version, out migrationInfo))
{
migrationsToRollback.Add(migrationInfo);
}
}
using (IMigrationScope scope = _migrationScopeHandler.CreateOrWrapMigrationScope(useAutomaticTransactionManagement && TransactionPerSession))
{
foreach (IMigrationInfo migrationInfo in migrationsToRollback.Take(steps))
{
ApplyMigrationDown(migrationInfo, useAutomaticTransactionManagement && migrationInfo.TransactionBehavior == TransactionBehavior.Default);
}
scope.Complete();
}
VersionLoader.LoadVersionInfo();
if (!VersionLoader.VersionInfo.AppliedMigrations().Any())
{
VersionLoader.RemoveVersionTable();
}
}
public void Rollback(int steps, bool useAutomaticTransactionManagement)
{
try
{
var migrations = VersionLoader.VersionInfo.AppliedMigrations().Intersect(MigrationLoader.Migrations.Keys);
foreach (var migrationNumber in migrations.Take(steps))
{
ApplyMigrationDown(migrationNumber);
}
VersionLoader.LoadVersionInfo();
if (!VersionLoader.VersionInfo.AppliedMigrations().Any())
{
VersionLoader.RemoveVersionTable();
}
if (useAutomaticTransactionManagement)
{
Processor.CommitTransaction();
}
}
catch (Exception)
{
if (useAutomaticTransactionManagement)
{
Processor.RollbackTransaction();
}
throw;
}
}
