McGansWebsite/application/models/Subject_model.php

<?php
if (!defined('BASEPATH'))
    exit('No direct script access allowed');

class Subject_model extends CI_Model {

    public function __construct() {
        parent::__construct();
    }
	 
	 function subject_list($id)
	{
		$this->db->select('*');
		$this->db->from('subject');
		$this->db->where(array('status'=>1,'department'=>$id));
		$query = $this->db->get();
		//echo $this->db->last_query();exit;
		return $query;
	} 
	
}