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+--- Thread: Using Validation Class to validate Username and Password (/showthread.php?tid=15911)
Using Validation Class to validate Username and Password - El Forum - 02-18-2009
[eluser]chadsaun[/eluser]
I'm new to Codeigniter and need some help to figure out the best way to validate the username and password.
This is what I have so far, but I want to setup some validation rule for validating if the username and password were found in the DB so that if it wasn't they'll see an error message.
Code:
function authorize() {
$this->form_validation->set_rules('username', 'Username', 'trim|required|max_length[50]|xss_clean');
$this->form_validation->set_rules('password', 'Password', 'trim|required|max_length[50]');
$authenticated = false;
$query = $this->db->get_where('safety_users', array('username' => $_POST['username'], 'password' => $_POST['password']));
if ($query->num_rows() > 0) {
$authenticated = true;
}
if ($this->form_validation->run() == false || !$authenticated) {
$this->load->view('login_view');
} else {
$this->load->view('products_view');
}
}Using Validation Class to validate Username and Password - El Forum - 02-18-2009
[eluser]Mark Skilbeck[/eluser]
You want to check out callbacks.
Code:
$this->form_validation->set_rules('username', 'Username', 'trim|required|max_length[50]|xss_clean|callback_username_exists');
$this->form_validation->set_rules('password', 'Password', 'trim|required|max_length[50]');
/** your callback **/
public function username_exists ( )
{
if ( ! $check_for_username )
{
$this->form_validation->set_message('username_exists', 'Username does not exist');
return false;
}
else
{
return true;
}
}Using Validation Class to validate Username and Password - El Forum - 02-18-2009
[eluser]chadsaun[/eluser]
I looked at callbacks, but from what I understand the callback will only be passed the form field it was attached to. So you couldn't get both the username and password.
How would I do this with a callback?
Using Validation Class to validate Username and Password - El Forum - 02-19-2009
[eluser]TheFuzzy0ne[/eluser]
I don't understand what you mean.
Using Validation Class to validate Username and Password - El Forum - 02-19-2009
[eluser]Colin Williams[/eluser]
You can get the other fields' value in the callback with $this->input->post('other_field')