Codeigniter updating records in db table - codeigniter

Question

I want to change a specific record in the database using codeigniter. The url should be like this mysite.com/users/edit/10.
Here the user having id=10 is being edited
users is the controller name and edit is a method.
Usually I do in this way
//code of the rest of controller
.....
function edit(){
$uid =$_REQUEST['uid'];
//database update code
}
...
Where a form is being posted deliberately to change the record

Answer 1

You're not clear at all on what you want, I just can give you some pointers.
In CI, you don't need (don't have to) use superglobals to access url parameters. It has a native system to manage uri segments, which became automatically accessible without the need to call them; they're available as arguments of the method you're accessing.
So, in a url like yours, mysite.com/users/edit/10, you'll have
Controller:
class Users extends CI_Controller {
public function edit($uid)
{
// $uid is automatically passed to this method and is already available
// here you do your operations
//for. ex.
$this->load->model('user_model');
$this->user_model->update_user($uid);
}
}
Model:
class User_model extends CI_Model {
function __construct()
{
parent::__construct();
}
function update_user($id)
{
$this->db->where('id',$id);
$fields = array('field1' => 'value1','field2' => 'value2'...);
$this->db->update('users',$fields);
}
}
If you provide further information I could expand my answer.