Cdbcriteria With Params

Hi everybody.

i have a search form like this in admin.php



in sql this query works fine,

SELECT * FROM pendapatan_baru WHERE tanggal BETWEEN '$tgl_awal' AND '$tgl_akhir' AND id = '$kd_dokter' AND unit_pelaksanaa LIKE '%$kd_pelayanan%'

how to parsing params to model.php??

or anyone has a idea how to use params combination with a CDbCriteria?

sorry to my bad english. . .

$criteria=new CDbCriteria;



$criteria->addSearchCondition('unit_pelaksanaa', $kd_pelayanan);