public async Task UpdateAsync(string feature)
{
if (_processedFeatures.Contains(feature))
{
return;
}
_processedFeatures.Add(feature);
if (_logger.IsEnabled(LogLevel.Information))
{
_logger.LogInformation("Updating feature: {0}", feature);
}
// proceed with dependent features first, whatever the module it's in
var dependencies = _extensionManager.AvailableFeatures()
.Where(f => String.Equals(f.Id, feature, StringComparison.OrdinalIgnoreCase))
.Where(f => f.Dependencies != null)
.SelectMany(f => f.Dependencies)
.ToList();
foreach (var dependency in dependencies)
{
await UpdateAsync(dependency);
}
var migrations = GetDataMigrations(feature);
// apply update methods to each migration class for the module
foreach (var migration in migrations)
{
_session.ExecuteMigration(schemaBuilder =>
{
migration.SchemaBuilder = schemaBuilder;
// copy the object for the Linq query
var tempMigration = migration;
// get current version for this migration
var dataMigrationRecord = GetDataMigrationRecordAsync(tempMigration).Result;
var current = 0;
if (dataMigrationRecord != null)
{
current = dataMigrationRecord.Version.Value;
}
else
{
dataMigrationRecord = new Records.DataMigration {
DataMigrationClass = migration.GetType().FullName
};
_dataMigrationRecord.DataMigrations.Add(dataMigrationRecord);
}
try
{
// do we need to call Create() ?
if (current == 0)
{
// try to resolve a Create method
var createMethod = GetCreateMethod(migration);
if (createMethod != null)
{
current = (int)createMethod.Invoke(migration, new object[0]);
}
}
var lookupTable = CreateUpgradeLookupTable(migration);
while (lookupTable.ContainsKey(current))
{
try
{
if (_logger.IsEnabled(LogLevel.Information))
{
_logger.LogInformation("Applying migration for {0} from version {1}.", feature, current);
}
current = (int)lookupTable[current].Invoke(migration, new object[0]);
}
catch (Exception ex)
{
if (ex.IsFatal())
{
throw;
}
_logger.LogError(0, "An unexpected error occurred while applying migration on {0} from version {1}.", feature, current);
throw;
}
}
// if current is 0, it means no upgrade/create method was found or succeeded
if (current == 0)
{
return;
}
dataMigrationRecord.Version = current;
}
catch (Exception ex)
{
if (ex.IsFatal())
{
throw;
}
_logger.LogError(0, "Error while running migration version {0} for {1}.", current, feature);
_session.Cancel();
throw new OrchardException(T("Error while running migration version {0} for {1}.", current, feature), ex);
}
finally
{
// Persist data migrations
_session.Save(_dataMigrationRecord);
}
});
}
}
public async Task UpdateAsync(string feature)
{
if (_processedFeatures.Contains(feature))
{
return;
}
_processedFeatures.Add(feature);
if (_logger.IsEnabled(LogLevel.Information))
{
_logger.LogInformation("Updating feature: {0}", feature);
}
// proceed with dependent features first, whatever the module it's in
var dependencies = _extensionManager.AvailableFeatures()
.Where(f => String.Equals(f.Id, feature, StringComparison.OrdinalIgnoreCase))
.Where(f => f.Dependencies != null)
.SelectMany(f => f.Dependencies)
.ToList();
foreach (var dependency in dependencies)
{
await UpdateAsync(dependency);
}
var migrations = GetDataMigrations(feature);
// apply update methods to each migration class for the module
foreach (var migration in migrations)
{
_session.ExecuteMigration(schemaBuilder =>
{
migration.SchemaBuilder = schemaBuilder;
// copy the object for the Linq query
var tempMigration = migration;
// get current version for this migration
var dataMigrationRecord = GetDataMigrationRecordAsync(tempMigration).Result;
var current = 0;
if (dataMigrationRecord != null)
{
current = dataMigrationRecord.Version.Value;
}
else
{
dataMigrationRecord = new DataMigration { DataMigrationClass = migration.GetType().FullName };
_dataMigrationRecord.DataMigrations.Add(dataMigrationRecord);
}
try
{
// do we need to call Create() ?
if (current == 0)
{
// try to resolve a Create method
var createMethod = GetCreateMethod(migration);
if (createMethod != null)
{
current = (int)createMethod.Invoke(migration, new object[0]);
}
}
var lookupTable = CreateUpgradeLookupTable(migration);
while (lookupTable.ContainsKey(current))
{
try
{
if (_logger.IsEnabled(LogLevel.Information))
{
_logger.LogInformation("Applying migration for {0} from version {1}.", feature, current);
}
current = (int)lookupTable[current].Invoke(migration, new object[0]);
}
catch (Exception ex)
{
if (ex.IsFatal())
{
throw;
}
_logger.LogError(0, "An unexpected error occurred while applying migration on {0} from version {1}.", feature, current);
throw;
}
}
// if current is 0, it means no upgrade/create method was found or succeeded
if (current == 0)
{
return;
}
dataMigrationRecord.Version = current;
}
catch (Exception ex)
{
if (ex.IsFatal())
{
throw;
}
_logger.LogError(0, "Error while running migration version {0} for {1}.", current, feature);
_session.Cancel();
throw new OrchardException(T("Error while running migration version {0} for {1}.", current, feature), ex);
}
finally
{
// Persist data migrations
_session.Save(_dataMigrationRecord);
}
});
}
}