When i post data using that form, where should that data it go?
You shouldn't write the logic on every page (controller). What you should do is creating a distinct controller (like Accounts
) for managing user logging.
The login form should post the data to accounts/login
URL. but to get back to the previous page, we should store current URL in session as referer
.
To do that, just store uri_string();
in the session on each page you need.
$this->session->set_userdata(array(
'referer' => $this->uri->uri_string()
));
If you don't need to redirect the user to the previous page, ignore it.
The example below indicates how to achieve the goal:
class Accounts extends CI_Controller {
public function login()
{
$config = array(
// Write your validation rules here
);
$this->load->library('form_validation');
$this->form_validation->set_rules($config);
// Check whether form is submitted
if (isset($_POST['submit'])) {
if ($this->form_validation->run() == FALSE) {
$data['login_errors'] = validation_errors();
// Store validation errors in session
// to display on every page needed
$this->session->set_userdata($data);
} else {
// Login process
// Set user detail in session
// Redirect to previous page after login
if ($referer = $this->session->userdata('referer')) {
$this->session->unset_userdata('referer');
} else {
$referer='';
}
redirect(base_url().$referer);
}
}
}
public function logout()
{
// Destroy the session
$this->session->sess_destroy();
redirect(base_url());
}
}