/// <summary>
/// Alters the database schema by applying the specified migration. Versioning is unaffected by this operation and any timestamp information on the <paramref name="migration"/> is disregarded.
/// </summary>
public void Alter(IMigration migration)
{
if (migration is IReversibleMigration)
{
Log.Info(LogCategory.General, "Migrations used to modify the database schema directly cannot be reversed.");
}
var migrationMetadata = new MigrationMetadata(0, "Bypass", "This migration is being executed without affecting the versioning.");
var stepMetadata = new MigrationStepMetadata(MigrationDirection.Up, false, new[] { migrationMetadata });
var batch = new MigrationBatch(new[]
{
new MigrationStep(migration, stepMetadata)
}, Enumerable.Empty<IMigrationMetadata>(), new NoVersioning(), Configuration);
batch.Execute();
}
public void ImportAll(out IReadOnlyCollection<ImportedMigration> migrations, out IReadOnlyCollection<ImportedAggregateMigration> aggregateMigrations)
{
Log.Info("Importing migrations...");
DateTime start = DateTime.Now;
var container = new CompositionContainer(_catalog);
IEnumerable<Lazy<IMigration, IMigrationExportMetadata>> migrationExports = container.GetExports<IMigration, IMigrationExportMetadata>();
IEnumerable<Lazy<IMigration, IAggregateMigrationExportMetadata>> aggregateMigrationExports = container.GetExports<IMigration, IAggregateMigrationExportMetadata>(AggregateMigrationExportAttribute.ContractName);
migrations = migrationExports
.Select(l =>
{
var timestamp = ExtractTimestamp(l.Metadata.ModuleName, l.Value);
var migrationMetadata = new MigrationMetadata(timestamp, l.Metadata.ModuleName, l.Metadata.Tag);
return new ImportedMigration(l.Value, migrationMetadata, l.Metadata.UseModuleNameAsDefaultSchema);
}).ToList();
aggregateMigrations = aggregateMigrationExports
.Select(l =>
{
var timestamp = ExtractTimestamp(l.Metadata.ModuleName, l.Value);
var aggregateMigrationMetadata = new AggregateMigrationMetadata(timestamp, l.Metadata.ModuleName);
return new ImportedAggregateMigration(l.Value, aggregateMigrationMetadata);
}).ToList();
Log.Verbose(LogCategory.Performance, "Importing migrations took {0}s", (DateTime.Now - start).TotalSeconds);
Log.Info("Found {0} migration(s) and {1} aggregate migration(s)", migrations.Count, aggregateMigrations.Count);
}
internal void LoadEntry(long timestamp, string moduleName, string tag)
{
var entry = new MigrationMetadata(timestamp, moduleName, tag);
_actualEntries.Add(entry);
}
internal void LoadEntry(long timestamp, string moduleName, string tag, string migrationName, DateTime? appliedDate)
{
var entry = new MigrationMetadata(timestamp, moduleName, tag, migrationName, appliedDate);
_actualEntries.Add(entry);
}