public IReadOnlyList <AggregateRootEvent> GetAggregateHistory(Guid aggregateId, bool takeWriteLock, int startAfterInsertedVersion = 0)
{
var historyData = new List <EventDataRow>();
using (var connection = _connectionMananger.OpenConnection(suppressTransactionWarning: !takeWriteLock))
{
using (var loadCommand = connection.CreateCommand())
{
loadCommand.CommandText = $"{GetSelectClause(takeWriteLock)} WHERE {EventTable.Columns.AggregateId} = @{EventTable.Columns.AggregateId}";
loadCommand.Parameters.Add(new SqlParameter($"{EventTable.Columns.AggregateId}", aggregateId));
if (startAfterInsertedVersion > 0)
{
loadCommand.CommandText += $" AND {EventTable.Columns.InsertedVersion} > @CachedVersion";
loadCommand.Parameters.Add(new SqlParameter("CachedVersion", startAfterInsertedVersion));
}
loadCommand.CommandText += $" ORDER BY {EventTable.Columns.EffectiveReadOrder} ASC";
using (var reader = loadCommand.ExecuteReader())
{
while (reader.Read())
{
var eventDataRow = ReadDataRow(reader);
if (eventDataRow.EffectiveVersion > 0)
{
historyData.Add(eventDataRow);
}
}
}
}
}
return(historyData.Select(HydrateEvent).ToList());
}
private void SaveEventsInternal(IEnumerable <EventWithManualReadorder> events)
{
using (var connection = _connectionMananger.OpenConnection())
{
foreach (var refactoringEvent in events)
{
var @event = refactoringEvent.Event;
using (var command = connection.CreateCommand())
{
command.CommandType = CommandType.Text;
command.CommandText +=
$@"
INSERT {EventTable.Name} With(READCOMMITTED, ROWLOCK)
( {EventTable.Columns.AggregateId}, {EventTable.Columns.InsertedVersion}, {EventTable.Columns.ManualVersion}, {EventTable.Columns.ManualReadOrder}, {EventTable.Columns.EventType}, {EventTable.Columns.EventId}, {EventTable.Columns.UtcTimeStamp}, {EventTable.Columns.Event}, {EventTable.Columns.InsertAfter}, {EventTable.Columns.InsertBefore}, {EventTable.Columns.Replaces})
VALUES(@{EventTable.Columns.AggregateId}, @{EventTable.Columns.InsertedVersion}, @{EventTable.Columns.ManualVersion}, @{EventTable.Columns.ManualReadOrder}, @{EventTable.Columns.EventType}, @{EventTable.Columns.EventId}, @{EventTable.Columns.UtcTimeStamp}, @{EventTable.Columns.Event}, @{EventTable.Columns.InsertAfter},@{EventTable.Columns.InsertBefore}, @{EventTable.Columns.Replaces})
SET @{EventTable.Columns.InsertionOrder} = SCOPE_IDENTITY();";
command.Parameters.Add(new SqlParameter(EventTable.Columns.AggregateId, @event.AggregateRootId));
command.Parameters.Add(
new SqlParameter(
EventTable.Columns.InsertedVersion,
@event.InsertedVersion > @event.AggregateRootVersion ? @event.InsertedVersion : @event.AggregateRootVersion));
command.Parameters.Add(new SqlParameter(EventTable.Columns.EventType, IdMapper.GetId(@event.GetType())));
command.Parameters.Add(new SqlParameter(EventTable.Columns.EventId, @event.EventId));
command.Parameters.Add(new SqlParameter(EventTable.Columns.UtcTimeStamp, @event.UtcTimeStamp));
command.Parameters.Add(new SqlParameter(EventTable.Columns.ManualReadOrder, refactoringEvent.ManualReadOrder));
command.Parameters.Add(new SqlParameter(EventTable.Columns.Event, _eventSerializer.Serialize(@event)));
command.Parameters.Add(Nullable(new SqlParameter(EventTable.Columns.ManualVersion, @event.ManualVersion)));
command.Parameters.Add(Nullable(new SqlParameter(EventTable.Columns.InsertAfter, @event.InsertAfter)));
command.Parameters.Add(Nullable(new SqlParameter(EventTable.Columns.InsertBefore, @event.InsertBefore)));
command.Parameters.Add(Nullable(new SqlParameter(EventTable.Columns.Replaces, @event.Replaces)));
var identityParameter = new SqlParameter(EventTable.Columns.InsertionOrder, SqlDbType.BigInt);
identityParameter.Direction = ParameterDirection.Output;
command.Parameters.Add(identityParameter);
command.ExecuteNonQuery();
@event.InsertionOrder = (long)identityParameter.Value;
}
}
}
}
