codeigniter config form_validation with subfolders not working - codeigniter

Question

I have using a lot config form_validation file. It's working good!
But now I'm trying to get it work with controller in subfolder
/controllers/panel/users.php
My form_validation config file looks like
$config = array(
'panel/users/edit/' => array(
array('field' => 'login', 'label' => 'Логин', 'rules' => "trim|required|valid_email")
)
And my Users controller is
public function edit($user_id = FALSE)
{
if ($this->input->post('save'))
{
$this->load->library('form_validation');
if ($this->form_validation->run())
{
// Do some
}
}
}
But $this->form_validation->run() is always return FALSE

Answer 1

It isn't designed to work this way, there was a relevant change to ruri_string() #122 which would have fixed this but it had other repercussions and needs to be rethought.
You can call your validation rule group explicitly (drop the trailing slash from your rule group name)
if ($this->form_validation->run('panel/users/edit'))
or, if appropriate in your situation, workaround this by prepending uri->segment(1) to the auto-detected rule group.
application/libraries/MY_Form_validation.php
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class MY_Form_validation extends CI_Form_validation {
function run($group = '')
{
// Prepend URI to match subfolder controller validation rules
$uri = ($group == '') ? $this->CI->uri->segment(1) . $this->CI->uri->ruri_string() : $group;
return parent::run($uri);
}
}