How to do this with one mysql request:
$revision = $this->Revision->where('batch', $batch)->first();
$revisions = $this->Revision->where('batch','>', $batch)
->where('revisionable_type', $revision->revisionable_type)
->where('revisionable_id', $revision->revisionable_id)
->get();
$this->Revision = eloquent model;
others are just columns.