can't pull values from table but insert is ok

[eluser]teddy[/eluser]
@CroNiX: thank you for your reply

Yes of course I had declare construct function in HomePage controller but nothing happen, and how can I display_errors turn on or php error reporting turned on in codeigniter

Code:

function __construct()
{

parent::__construct();  
$this->load->model('common_model');
  
}