PHP: order,select,get return DATABASE_MODEL

get_model.php

<?php

class Workouts_model extends CI_Model {

	function getData() {
			$this->db->order_by('id', 'DESC');
			$this->db->select('id, arms, chest, legs, abbs, back');
		$q = $this->db->get('workouts');

		if($q->num_rows() > 0) {
				foreach ($q->result() as $row) {
					$data[] = $row;
				}

			return $data;
		}