Manipulate query result

[blagi]

I have an addition to the Ignited Datatables. It's on my fork:
https://github.com/blagi/Ignited-Datatables/
I don't know how to post it here. Please help. Also some testing, style modification and integration to this original are welcomed.

Added public var $queryResult. Added two public methods:
generateResult() and produceOutputFromResult().
Now Datatables can be
called in another way:

$this->load->library("Datatables");

$this->datatables
->select("id as DT_RowId, email, last_login")

->from('user');
// echo $this->datatables->generate();
$raw_data = $this->datatables->generateResult();
foreach ($raw_data->result() as $row) {
$row->last_login_display = date('d.m.Y H:i', strtotime($row->last_login));
}
$res = $this->datatablesb->produceOutputFromResult();
echo $res;