Why isn't CodeIgniter's form validation not validating anything? - php

Question

Because of the bug in AngularJS, I need more than ever to make CodeIgniter validate my registration form.
I have done everything I can think of to troubleshoot this problem. Maybe it just needs a different set of eyes? Or maybe someone has dealt with this before?
public function register_validation() {
$this->load->library('form_validation');
$this->form_validation->set_rules('username', 'Username',
'required|trim|is_unique[users.username]|max_length[32]');
$this->form_validation->set_rules('password', 'Password',
'required|trim|min_length[6]');
$this->form_validation->set_rules('email', 'Email',
'required|trim|valid_email|is_unique[users.email]');
if($this->form_validation->run()) {
echo "Pass!";
} else {
echo "NOPE!";
$this->load->view('home');
}
}

Answer 1

This line:
$this->form_validation->set_rules('username', 'Password',
'required|trim|min_length[6]');
Should be:
$this->form_validation->set_rules('password', 'Password',
'required|trim|min_length[6]');
You used username twice. You should change your run() check to:
if($this->form_validation->run() == FALSE))
{
echo "NOPE!";
$this->load->view('home');
}
else
{
echo "Pass!";
}

Answer 2

this line is correct
$this->form_validation->set_rules('username', 'Username',
'required|trim|is_unique[users.username]|max_length');
first username is your field name and second one is which show in the error.
but this line
this->form_validation->set_rules('username', 'Password',
'required|trim|min_length[6]');
here you used username name which is already validating instead of username you used password
there are many ways for applying conditions
first one is
if($this->form_validation->run() == FALSE)) {
$this->load->view('home');
} else {
echo "Pass!";
}
second one is
if($this->form_validation->run() != FALSE) {
echo "Pass!";
} else {
$this->load->view('home');
}

Answer 3

Change
if($this->form_validation->run()) {
to
if($this->form_validation->run($this)) {