custom codeigniter library not returning data - codeigniter

Question

I have made a codeigniter user login library but have run into a small issue. When I login it is not returning any of the functions in the library like $this->get_user_username();
On my dashboard I should be able to do this echo $this->user->get_user_username();
I think I know problem is because the if ($this->validate_password($password)) { is around the query. And stops
me returning any data.
Note: I only would like to be able to set the user_id in session which is working. And just return the others as variables etc.
Question Because I am using if ($this->validate_password($password)) { in my login and once logged in it blocks me from retrieving any data what would be best solution so can still use it and retrieve my data
With out setting it all in sessions as I said I only want user id set
in sessions.
Dashboard Controller
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Dashboard extends MX_Controller {
public function __construct() {
parent::__construct();
$this->load->library('admin/user');
}
public function index()
{
echo $this->user->get_user_username();
print_r($_SESSION);
$data['top_navbar'] = Modules::run('admin/common/top_navbar/index');
$data['column_left'] = Modules::run('admin/common/column_left/index');
$data['header'] = Modules::run('admin/common/header/index');
$data['footer'] = Modules::run('admin/common/footer/index');
$this->load->view('common/dashboard_view', $data);
}
}
User Library
<?php
class User {
private $user_id;
private $username;
public function __construct() {
$this->CI =& get_instance();
}
public function login($username, $password) {
if ($this->validate_password($password)) {
$this->CI->db->where('username', $username);
$user_query = $this->CI->db->get($this->CI->db->dbprefix . 'user');
if ($user_query->num_rows() > 0) {
$row = $user_query->row();
$this->CI->session->set_userdata(array('user_id' => $row->user_id)); // Working
$this->user_id = $row->user_id;
$this->user_group_id = $row->user_group_id;
$this->username = $row->username;
$this->firstname = $row->firstname;
$this->lastname = $row->lastname;
$this->email = $row->email;
return true;
} else {
return false;
}
} else {
return false;
}
}
public function logout() {
$this->CI->session->unset_userdata('user_id');
$this->user_id = '';
$this->username = '';
}
public function get_user_id() {
return $this->user_id;
}
public function get_user_group_id() {
return $this->user_group_id;
}
public function get_user_username() {
return $this->username;
}
public function get_user_firstname() {
return $this->firstname;
}
public function get_user_lastname() {
return $this->lastname;
}
public function get_user_email() {
return $this->email;
}
public function validate_password($password) {
if (password_verify($password, $this->stored_hash())) {
return $password;
} else {
return false;
}
}
public function stored_hash() {
$this->CI->db->where('username', $this->CI->input->post('username'));
$query = $this->CI->db->get($this->CI->db->dbprefix . 'user');
if ($query->num_rows() > 0) {
$row = $query->row();
return $row->password;
} else {
return false;
}
}
}

Answer 1

Problem Solved I thought post my own answer, I had to add another section in the construct area of user library to make it work
And then use session userdata for where check.
public function __construct() {
$this->CI =& get_instance();
if ($this->CI->session->userdata('user_id') == TRUE) {
$this->CI->db->where('user_id', $this->CI->session->userdata('user_id'));
$user_query = $this->CI->db->get($this->CI->db->dbprefix . 'user');
if ($user_query->num_rows() > 0) {
$row = $user_query->row();
$this->user_id = $row->user_id;
$this->user_group_id = $row->user_group_id;
$this->username = $row->username;
$this->firstname = $row->firstname;
$this->lastname = $row->lastname;
$this->email = $row->email;
return true;
} else {
return false;
}
}
}
Library
<?php
class User {
private $user_id;
private $username;
public function __construct() {
$this->CI =& get_instance();
if ($this->CI->session->userdata('user_id') == TRUE) {
$this->CI->db->where('user_id', $this->CI->session->userdata('user_id'));
$user_query = $this->CI->db->get($this->CI->db->dbprefix . 'user');
if ($user_query->num_rows() > 0) {
$row = $user_query->row();
$this->user_id = $row->user_id;
$this->user_group_id = $row->user_group_id;
$this->username = $row->username;
$this->firstname = $row->firstname;
$this->lastname = $row->lastname;
$this->email = $row->email;
return true;
} else {
return false;
}
} else {
$this->logout();
}
}
public function login($username, $password) {
if ($this->validate_password($password)) {
$this->CI->db->where('username', $username);
$user_query = $this->CI->db->get($this->CI->db->dbprefix . 'user');
if ($user_query->num_rows() > 0) {
$row = $user_query->row();
$this->CI->session->set_userdata(array('user_id' => $row->user_id));
$this->user_id = $row->user_id;
$this->user_group_id = $row->user_group_id;
$this->username = $row->username;
$this->firstname = $row->firstname;
$this->lastname = $row->lastname;
$this->email = $row->email;
return true;
} else {
return false;
}
} else {
return false;
}
}
public function logout() {
$this->CI->session->unset_userdata('user_id');
$this->user_id = '';
$this->username = '';
}
public function get_user_id() {
return $this->user_id;
}
public function get_user_group_id() {
return $this->user_group_id;
}
public function get_user_username() {
return $this->username;
}
public function get_user_firstname() {
return $this->firstname;
}
public function get_user_lastname() {
return $this->lastname;
}
public function get_user_email() {
return $this->email;
}
public function validate_password($password) {
if (password_verify($password, $this->stored_hash())) {
return $password;
} else {
return false;
}
}
public function stored_hash() {
$this->CI->db->where('username', $this->CI->input->post('username'));
$query = $this->CI->db->get($this->CI->db->dbprefix . 'user');
if ($query->num_rows() > 0) {
$row = $query->row();
return $row->password;
} else {
return false;
}
}
}