creating news item in codeigniter - php

Question

i want to create news item in codeigniter with use slug but is error display like this.
> Call to a member function insert() on a non-object in line 34
I am a newbie in Codeigniter and couldn't really figure out how to solve this.
my controller
function tambah_profil()
{
$this->data['title'] ='create a new items';
$this->form_validation->set_rules('judul', 'Judul', 'required');
$this->form_validation->set_rules('content', 'Content', 'required');
if ($this->form_validation->run() == FALSE)
{
$this->data['contents'] = $this->load->view('admin/profil/tambah_profil', '', true);
}else{
$this->mhalaman->insert_profil();
$this->data['contents'] = $this->load->view('admin/profil/view_profil', '', true);
}
$this->data['orang'] = $this->mlogin->dataPengguna($this->session->userdata('username'));
$this->data['contents'] = $this->load->view('admin/profil/tambah_profil', '', true);
//$this->data['contents'] = 'admin/profil/tambah_profil';
$this->load->view('template/wrapper/admin/wrapper_ukm',$this->data);
}
my model
var $db;
private $tbl_halaman = 'halaman';
public function __construct()
{
parent ::__construct();
$this->load->database();
}
function get_profil($slug = FALSE)
{
if ($slug === FALSE)
{
$query = $this->db->get($this->tbl_halaman);
return $query->result_array();
}
$query = $this->db->get_where($this->tbl_halaman, array('slug'=>$slug));
return $query->row_array();
}
function insert_profil()
{
$slug = url_title($this->input->post('judul'),'dash', TRUE);
$data = array(
'judul' => $this->input->post('judul'),
'slug' => $slug,
'content' => $this->input->post('content')
);
return $this->db->insert($this->tbl_halaman ,$data); //line 34
}
please help me what to do. thank you.

Answer 1

Please check whether you have loaded $this->load->database() inside the model constructor.
$this->db->method_name(); will only work when the database library is loaded.
If you plan to use the database throughout your application, I would suggest adding it to your autoload.php in /application/config/.
$autoload['libraries']=array('database');