Stop form validation submitting if error on file upload - codeigniter

Question

Question: When the user has filled in the form validation correct but there is a error on image upload how is it possible to stop the form being submitted
Currently still submits data even if there is a error on my image upload.
<?php
class Users extends MY_Controller {
private $error = array();
public function __construct() {
parent::__construct();
$this->load->library('form_validation');
$this->load->library('countries');
$this->load->library('upload');
$this->load->model('admin/user/user_model');
$this->load->model('admin/user_group/usergroup_model');
}
public function add() {
$this->form_validation->set_rules('username', 'Username', 'trim|required');
if ($this->form_validation->run() == true) {
if (isset($_FILES['userfile']) && $_FILES['userfile']['size'] > 0) {
if (!is_dir(FCPATH . 'uploads/users/' . $this->input->post('username') . '/')) {
mkdir(FCPATH . 'uploads/users/' . $this->input->post('username') . '/');
}
$config['upload_path'] = './uploads/users/' . $this->input->post('username') . '/';
$config['allowed_types'] = 'gif|png';
$config['max_size'] = 3000;
$config['max_width'] = 0;
$config['max_height'] = 0;
$config['overwrite'] = TRUE;
$this->upload->initialize($config);
if ($this->upload->do_upload('userfile')) {
return true;
}
}
$this->user_model->insert($this->upload->data());
}
if ($this->upload->display_errors() != false) {
$this->error['warning'] = $this->upload->display_errors();
}
if (validation_errors() != false) {
$this->error['warning'] = validation_errors('<div class="alert alert-danger">', '</div>');
}
if (isset($this->error['warning'])) {
$data['warning_error'] = $this->error['warning'];
} else {
$data['warning_error'] = '';
}
$data['countries'] = $this->countries->get();
$data['timezones'] = DateTimeZone::listIdentifiers(DateTimeZone::ALL);
$data['usergroups'] = $this->usergroup_model->get_user_groups();
$data['header'] = Modules::run('admin/common/header/index');
$data['footer'] = Modules::run('admin/common/footer/index');
$this->load->view('user/add_view', $data);
}
}
Model
<?php
class User_model extends CI_Model {
public function insert($upload_data = array()) {
$this->db->trans_begin();
$options = [
'cost' => 12,
];
$hash = password_hash($this->input->post('password'), PASSWORD_BCRYPT, $options);
$data = array(
'user_group_id' => $this->input->post('user_group_id'),
'username' => $this->input->post('username'),
'password' => $hash,
'firstname' => $this->input->post('firstname'),
'lastname' => $this->input->post('lastname'),
'email' => $this->input->post('email'),
'image' => ($upload_data['file_name']) ? $upload_data['file_name'] : '',
'country' => $this->input->post('country'),
'timezone' => $this->input->post('timezone'),
'status' => $this->input->post('status'),
'date_added' => date('Y-m-d')
);
$this->db->set($data);
$this->db->insert($this->db->dbprefix . 'user');
if ($this->db->trans_status() === FALSE) {
$this->db->trans_rollback();
} else {
$this->db->trans_commit();
}
}
}
Codeigniter Version 3.1.0 & XAMPP Windows 10

Answer 1

Have solved it now.
<?php
class Users extends MY_Controller {
private $error = array();
public function __construct() {
parent::__construct();
$this->load->library('form_validation');
$this->load->library('countries');
$this->load->library('upload');
$this->load->model('admin/user/user_model');
$this->load->model('admin/user_group/usergroup_model');
}
public function add() {
$this->form_validation->set_rules('username', 'username', 'trim|required|is_unique[user.username]');
$this->form_validation->set_message('is_unique', 'Opps looks like someone has all ready got that {field}');
if ($this->form_validation->run() == true) {
if (isset($_FILES['userfile']) && $_FILES['userfile']['size'] > 0) {
if ($this->upload() == true) {
$this->user_model->insert($this->upload->data());
}
} else {
$this->user_model->insert();
}
}
if (validation_errors() != '') {
$this->error['warning'] = validation_errors('<div class="alert alert-danger">', '</div>');
}
if (isset($this->error['warning'])) {
$data['warning_error'] = $this->error['warning'];
} else {
$data['warning_error'] = '';
}
$data['countries'] = $this->countries->get();
$data['timezones'] = DateTimeZone::listIdentifiers(DateTimeZone::ALL);
$data['usergroups'] = $this->usergroup_model->get_user_groups();
$data['header'] = Modules::run('admin/common/header/index');
$data['footer'] = Modules::run('admin/common/footer/index');
$this->load->view('user/add_view', $data);
}
public function upload() {
if (!is_dir(FCPATH . 'uploads/users/' . $this->input->post('username') . '/')) {
mkdir(FCPATH . 'uploads/users/' . $this->input->post('username') . '/');
}
$config['upload_path'] = './uploads/users/' . $this->input->post('username') . '/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = 3000;
$config['max_width'] = 0;
$config['max_height'] = 0;
$config['overwrite'] = TRUE;
$this->upload->initialize($config);
if (!$this->upload->do_upload('userfile')) {
$this->error['warning'] = $this->upload->display_errors('<div class="alert alert-danger">', '</div>');
} else {
return true;
}
return !$this->error;
}
}