Model/Controller Quick Question

[eluser]ikim[/eluser]
Hi,

Im starting to learn how to keep all database stuff inside models and separate it from the controllers. However, Ive been looking around and I cant seem to understand how to insert data into the database.

Right now I have a small form in my view sending the form to the controller.

Code:

function insert()
{        
$this->load->model('Test');
$this->Test->insert_info();
}

and then the model has

Code:

function insert_info()
    {    
        $data['user_id'] = $_POST['user_id'];
        $data['about_me'] = $_POST['about_me'];
        $data['tagline'] = $_POST['tagline'];
    
        $this->db->set('personality', $data);
     }

What am I missing? Ive been reading the user quide and trying to find something on the forum but I cant seem to find anything.

Thanks for the help