在codeigniter中动态设置我的配置变量后如何从其他控制器和模型访问它们？

Question

I have updated my config variable in my model using:

$this->config->set_item('userid', $user_id);

if i echo it in the model i can see that it gets set.

But if i echo it in the controller or another model using:

echo $this->config->item('userid');

it shows the original value.

I need to store this config variable throughout the session but i do not want to use session variables.

Answer 1

that configurtation is only applicable on that model which you set it. If you want a global setting without using session.

you could create a core model on application/core and name it

MY_Model

so basically what MY_Model do is that it sets your config on all models that extends it.

class MY_Model Extends CI_Model
{
  protected $user_id;
  public function __construct()
  {
    parent::__construct();
   $this->config->set_item('userid', $this->user_id);
  }
}

then on your model that you want the settings to be applied, just extends your model. like

Model extends MY_Model
{

  public function test($id)
  {
    $this->user_id = $id;

   }
}

OR you could create a Core COntroller same as the above but substituting controller to model read more at http://ellislab.com/codeigniter/user-guide/general/core_classes.html