[Solved] stuck model id issue

I am trying to be able to get the user group id from my database table, where the $name and $controller variable should work.

Instead when I add my second parameter in the $this->getID() it throws error.

A PHP Error was encountered

Severity: Notice
Message: Array to string conversion
Filename: user/users_group_update.php
Line Number: 45

Line 45 below

PHP Code:

'edit' => site_url('admin/users_group_controller_update') .'/'. $this->getId($this->uri->segment(3), $controller) 


I know its in array but how can I fix it so can work. uri segment 3 returns the user group name. its all on the one controller at the moment the model stuff on controller just for testing.

PHP Code:

<?php

class Users_group_update extends Admin_Controller {

public function __construct() {
parent::__construct();
$this->load->model('admin/user/model_user_group');
}

public function index() {

$data['title'] = "Users Group Update";

// uri segment 3 returns user group name
// gets installed controllers
$controller_files = $this->getInstalled($this->uri->segment(3)); 

$data['controller_files'] = array();

$files = glob(FCPATH . 'application/modules/admin/controllers/*/*.php');

if ($files) {

foreach ($files as $file) {
$controller =  basename(strtolower($file), '.php');

$do_not_list = array(
'customer_total',
'dashboard',
'footer',
'header',
'login',
'logout',
'menu',
'online',
'permission',
'register',
'user_total'
); 

if (!in_array($controller, $do_not_list)) {

$data['controller_files'][] = array(
'name' => $controller,
'installed' => in_array($controller, $controller_files),
'edit' => site_url('admin/users_group_controller_update') .'/'. $this->getId($this->uri->segment(3), $controller)
);

}
                
}


}

$this->load->view('template/user/users_group_form_update', $data);

}


public function getId($name, $controller) {

$this->db->select();
$this->db->from($this->db->dbprefix . 'user_group');
$this->db->where('name', $name);
$this->db->where('controller', $controller);
$query = $this->db->get();
        
return $query->row('user_group_id');
}

public function getInstalled($name) {

$controller_data = array();

$this->db->select();
$this->db->from($this->db->dbprefix . 'user_group');
$this->db->where('name', $name);
$query = $this->db->get();

foreach ($query->result_array() as $result) {
$controller_data[] = $result['controller'];
}

return $controller_data;

 
}

} 


There's only one rule - please don't tell anyone to go and read the manual.  Sometimes the manual just SUCKS!