Call to a member function on a non-object php ci - php

Question

Excuse me master, I had an error in my controller, I'm a newbie PHP CI programmer.
Can you help me where is my mistake on this code? The error says : "Call to a member function produk_list() on a non-object"
And here's my code on my controller :
function index()
{
$data = array();
$data['template'] = 'produk/index';
$data['query'] = $this->produk_model->produk_list($this->uri->segment(4),5,true);
$data['page_title'] = 'Produk';
$this->pagination->initialize(paging_admin($this->produk_model->count(true),'admin/produk/index'));
$data['pagination'] = $this->pagination->create_links();
$data['breadcrum'] = array(array("MIS Admin Panel",'admin'),
array('Produk','admin/produk'),
array('List','')
);
$data = array_merge($data,admin_info());
$this->parser->parse('admin/index',$data);
}
And here's my code on my models (produk_model)
function produk_list($limit,$offset,$admin = false)
{
if($admin === false) $this->db->select('id,title,image,content,created_at');
if($admin === false) $this->db->where('publish',1);
$this->db->order_by('id','DESC');
($limit == '')? $this->db->limit($offset,0) : $this->db->limit($offset,$limit);
$query = $this->db->get('produk');
if($admin === false){
$data = array();
foreach($query->result() as $row){
$data[] = array('produkid' => $row->id,
'produktitle' => $row->title,
'produkurltitle' => url_title($row->title,'dash',true),
'produkdate' => human_date_time($row->created_at),
'produkfrontdate' => human_date($row->created_at),
'produkimage' => ($row->image != '')? '<img src="{produk_tpath}'.$row->image.'" alt="'.$row->title.'" title="'.$row->title.'" />' : '',
'produkcontent' => character_limiter(strip_tags($row->content),200),
);
}
return $data;
}else{
return $query->result();
}
}
Thank you master...
Hope you can help me...

Answer 1

You must either load the model in your controller or autoload the model in autoload.php under config before calling the model function
$this->load->model('produk_model');