insert ke database berdasar user login di codeigniter

Waalaikumsalam.w.w
Session ini isinya apa : $this->session->userdata('member_login');
yang saya tau bukan begini : $id = $logged_data['id_member'];
 
untuk menyimpan data user login, cukup ambil dari session yang di create dari login saja..
misalnya untuk session login jika sukses akan dibuat session seperti berikut :
<?php 
   $this->session->set_userdata(array('id_members'=>$row['id_members'])); 
?>
 
jadi saat insert data jadi begini : 
<?php
   $data = array('data'=>$this->input->post('judul'),
              'id_member'=>$this->session->id_members);
?>
Udah gitu saja dan seelsai,.. :)

$this->session->userdata('member_login');  untuk memastikan aja bahwa member sudah login
oke mas tak cobanya 

kok belum bisa ya mas apa ada yang salah discriptnya berikut
<!- -controller- ->
public function auth()
    {
        if(isset($_POST['submit']))
           {
            // proses login
            $username=  $this->input->post('username_member');
            $password=  $this->input->post('password_member');
            $chek=  $this->db->get_where('member',array('username'=>$username,'password_m'=>md5($password)));
            if($chek->num_rows()>0)
            {
               // $data_session = array(
               //  'id_member' => $username,
               //  'status' => "login"
               //  );
                $this->session->set_userdata(array(
                    'id_member'=>$row['id_member'],
                    'status' => "login"
                ));
                // $this->session->set_userdata($data_session);
                // $this->template->load('member/template_member', 'member/dashboard_member');
                redirect('member');
            }else{
                $this->session->set_flashdata('gagal_login', '<div class="alert alert-dismissible alert-danger">
            <button type="button" class="close" data-dismiss="alert">×</button>Username dan Password Salah</b></div>');
                redirect('member');
            }
        }
    }
function add_contact()
    {
        if(isset($_POST['submit'])){
            $this->mod_member->setting_contact();
            redirect('member/setting'); 
        }else{  
         $this->template->load('member/theme_member','member/kontak/post_kontak');
        }
    }
<!- -model- ->
function setting_contact()
    {
        $data=array(
                    'alamat_usaha'=>  $this->input->post('alamat'),
                    'email'       =>  $this->input->post('email'),
                    'no_telp'     =>  $this->input->post('noHP'),
                    'id_member'=>$this->session->id_members
                    );
        $this->db->insert('web_contact_member',$data);

$row['id_member'] // ini datanya dari mana??
$this->session->id_members // Kok malah jadi id_members? saat create session saya lihat id_member (Tanpa huruf s)
 
Ya udah saya bantu benerin saja ya,.. :)
<?php 
public function auth(){
	if(isset($_POST['submit'])){
	    // proses login
	    $username=  $this->input->post('username_member');
	    $password=  $this->input->post('password_member');
	    $chek=  $this->db->get_where('member',array('username'=>$username,'password_m'=>md5($password)));
	    if($chek->num_rows()>0){
	    	$row = $chek->row_array();
	        $this->session->set_userdata(array(
	            'id_member'=>$row['id_member'],
	            'status' => "login"
	        ));
	        redirect('member');
	    }else{
	        $this->session->set_flashdata('gagal_login', '<div class="alert alert-dismissible alert-danger">
	    <button type="button" class="close" data-dismiss="alert">×</button>Username dan Password Salah</b></div>');
	        redirect('member');
	    }
	}
}
 
function setting_contact()
	$data = array('alamat_usaha'=>  $this->input->post('alamat'),
	            'email'       =>  $this->input->post('email'),
	            'no_telp'     =>  $this->input->post('noHP'),
	            'id_member'=>$this->session->id_member);
	$this->db->insert('web_contact_member',$data);
}
?>
 
Note : Jangan Lupa untuk lebih teliti lagi ngetik kodenya,.. :)