public static NpgsqlParameter DeletedStreamMessage(PostgresqlStreamId streamId)
{
return(new NpgsqlParameter <PostgresNewStreamMessage>
{
TypedValue = PostgresNewStreamMessage.FromNewStreamMessage(
Deleted.CreateStreamDeletedMessage(streamId.IdOriginal))
});
}
private async Task DeleteStreamInternal(
MySqlStreamId streamId,
int expectedVersion,
MySqlTransaction transaction,
CancellationToken cancellationToken)
{
var deletedStreamMessage = Deleted.CreateStreamDeletedMessage(streamId.IdOriginal);
var deletedStreamId = Parameters.DeletedStreamId();
var deletedStreamIdOriginal = Parameters.DeletedStreamIdOriginal();
var deletedMetadataStreamId = Parameters.DeletedMetadataStreamId();
var deletedStreamMessageMessageId = Parameters.DeletedStreamMessageMessageId(deletedStreamMessage);
var deletedStreamMessageType = Parameters.DeletedStreamMessageType(deletedStreamMessage);
var deletedStreamMessageJsonData = Parameters.DeletedStreamMessageJsonData(deletedStreamMessage);
using (var command = BuildStoredProcedureCall(
_schema.DeleteStream,
transaction,
Parameters.StreamId(streamId),
Parameters.ExpectedVersion(expectedVersion),
Parameters.CreatedUtc(_settings.GetUtcNow?.Invoke()),
Parameters.DeletionTrackingDisabled(_settings.DisableDeletionTracking),
_settings.DisableDeletionTracking ? deletedStreamId.Empty() : deletedStreamId,
_settings.DisableDeletionTracking ? deletedStreamIdOriginal.Empty() : deletedStreamIdOriginal,
_settings.DisableDeletionTracking ? deletedMetadataStreamId.Empty() : deletedMetadataStreamId,
_settings.DisableDeletionTracking
? deletedStreamMessageMessageId.Empty()
: deletedStreamMessageMessageId,
_settings.DisableDeletionTracking ? deletedStreamMessageType.Empty() : deletedStreamMessageType,
_settings.DisableDeletionTracking
? deletedStreamMessageJsonData.Empty()
: deletedStreamMessageJsonData))
{
try
{
await command.ExecuteNonQueryAsync(cancellationToken).ConfigureAwait(false);
}
catch (MySqlException ex) when(ex.IsWrongExpectedVersion())
{
await transaction.RollbackAsync(cancellationToken).ConfigureAwait(false);
throw new WrongExpectedVersionException(
ErrorMessages.DeleteStreamFailedWrongExpectedVersion(streamId.IdOriginal, expectedVersion),
streamId.IdOriginal,
expectedVersion,
ex);
}
}
}