private static IEnumerable <Tuple <string, object> > CreateQuery(StatusInsertBatch batch)
{
return(EnumerableEx.Concat(
new[] { Tuple.Create(_statusInserter, (object)batch.Status) },
new[] { _statusEntityCrud.CreateDeleter(batch.Status.Id) },
batch.StatusEntities.Select(e => Tuple.Create(_statusEntityInserter, (object)e))));
}