Codeigniter validation_errors function is undefined

Question

Probably there is something I am missing out. I looked around the web and SO for an answer for nothing fixed it for me. Here's my problem: I am loading form_validation library in the __construct method still PHP complains that validation_errors method is undefined. Also form helper is autoloaded.

...
...
function __construct()
{
    parent::__construct();
    $this->load->library('ion_auth');
    $this->load->library('form_validation');
    $this->load->helper('url');
....
....
function login()
{
    $this->data['title'] = "Login";
    .....
    .....
    //the user is not logging in so display the login page
        //set the flash data error message if there is one
        $this->data['message'] = (validation_errors()) ? validation_errors() : $this->session->flashdata('message');

Error is thrown on the last line above. (This code is part of ion_auth module http://benedmunds.com/ion_auth/)

Did you run the validation already ?

The Alpha
– The Alpha

2014-03-31 19:30:27 +00:00
Commented Mar 31, 2014 at 19:30 — The Alpha
– The Alpha, Commented Mar 31, 2014 at 19:30
No. the page errors out on first hit itself.

nilobarp
– nilobarp

2014-03-31 19:33:56 +00:00
Commented Mar 31, 2014 at 19:33 — nilobarp
– nilobarp, Commented Mar 31, 2014 at 19:33

The Alpha · Accepted Answer · 2014-03-31 19:45:34Z

1

You may try this:

$this->data['message'] = ($this->form_validation->run() == False) ? validation_errors() : $this->session->flashdata('message');

Also make sure helper (form_helper.php) is loaded before you call the validation_errors() helper function because this function is available in this helper file. To load the helper file you may use:

$this->load->helper('form');

edited Mar 31, 2014 at 19:45

answered Mar 31, 2014 at 19:39

The Alpha

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6 Comments

nilobarp Over a year ago

Hmm.. but I have used this code before and is part of a standard library, thus it looks like a problem with the current configuration. Any hint on that part?

The Alpha Over a year ago

I'm not sure about ion_auth but if the error message says that, validation_errors() function is not defined then definitely the helper is not loaded and you may even load this from config/autoload.php using $autoload['helper'] = array('form'); to auto load it in every request.

nilobarp Over a year ago

Yes, its already added to autoload. Still the function is undefined. Next if I comment out the error line I get an error for form_open()

The Alpha Over a year ago

Out of my knowledge, why form_open error should occur ? The form_open is also a part of form helper and if the helper is already loaded then it doesn't make any sense for the error.

The Alpha Over a year ago

So did I (almost 5 years) and now migrated to Laravel, you should try this, you'll love it.

|

Mehmet Ince · Accepted Answer · 2014-03-31 19:44:18Z

0

You should call run() method of form_validation class. Also you should define form variables.

$this->load->library('form_validation');
$this->form_validation->set_rules('username', 'Username', 'required');
$this->form_validation->set_rules('password', 'Password', 'required');
$this->form_validation->set_rules('passconf', 'Password Confirmation', 'required');
$this->form_validation->set_rules('email', 'Email', 'required');

if ($this->form_validation->run() == FALSE)
    $this->data['message'] = $this->session->flashdata('message');

answered Mar 31, 2014 at 19:44

Mehmet Ince

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